; X86-LABEL: clear_highbits8_c0:
; X86: # %bb.0:
; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NEXT: movb $-1, %al
+; X86-NEXT: movb {{[0-9]+}}(%esp), %al
+; X86-NEXT: shlb %cl, %al
; X86-NEXT: shrb %cl, %al
-; X86-NEXT: andb {{[0-9]+}}(%esp), %al
; X86-NEXT: retl
;
; X64-LABEL: clear_highbits8_c0:
; X64: # %bb.0:
-; X64-NEXT: movb $-1, %al
; X64-NEXT: movl %esi, %ecx
-; X64-NEXT: shrb %cl, %al
-; X64-NEXT: andb %dil, %al
+; X64-NEXT: shlb %cl, %dil
+; X64-NEXT: # kill: def $cl killed $cl killed $ecx
+; X64-NEXT: shrb %cl, %dil
+; X64-NEXT: movl %edi, %eax
; X64-NEXT: retq
%mask = lshr i8 -1, %numhighbits
%masked = and i8 %mask, %val
define i8 @clear_highbits8_c2_load(i8* %w, i8 %numhighbits) nounwind {
; X86-LABEL: clear_highbits8_c2_load:
; X86: # %bb.0:
-; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NEXT: movb $-1, %al
+; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT: movb (%eax), %al
+; X86-NEXT: shlb %cl, %al
; X86-NEXT: shrb %cl, %al
-; X86-NEXT: andb (%edx), %al
; X86-NEXT: retl
;
; X64-LABEL: clear_highbits8_c2_load:
; X64: # %bb.0:
-; X64-NEXT: movb $-1, %al
; X64-NEXT: movl %esi, %ecx
+; X64-NEXT: movb (%rdi), %al
+; X64-NEXT: shlb %cl, %al
+; X64-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NEXT: shrb %cl, %al
-; X64-NEXT: andb (%rdi), %al
; X64-NEXT: retq
%val = load i8, i8* %w
%mask = lshr i8 -1, %numhighbits
; X86-LABEL: clear_highbits8_c4_commutative:
; X86: # %bb.0:
; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NEXT: movb $-1, %al
+; X86-NEXT: movb {{[0-9]+}}(%esp), %al
+; X86-NEXT: shlb %cl, %al
; X86-NEXT: shrb %cl, %al
-; X86-NEXT: andb {{[0-9]+}}(%esp), %al
; X86-NEXT: retl
;
; X64-LABEL: clear_highbits8_c4_commutative:
; X64: # %bb.0:
-; X64-NEXT: movb $-1, %al
; X64-NEXT: movl %esi, %ecx
-; X64-NEXT: shrb %cl, %al
-; X64-NEXT: andb %dil, %al
+; X64-NEXT: shlb %cl, %dil
+; X64-NEXT: # kill: def $cl killed $cl killed $ecx
+; X64-NEXT: shrb %cl, %dil
+; X64-NEXT: movl %edi, %eax
; X64-NEXT: retq
%mask = lshr i8 -1, %numhighbits
%masked = and i8 %val, %mask ; swapped order
; X86-NOBMI2-LABEL: clear_highbits16_c0:
; X86-NOBMI2: # %bb.0:
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $65535, %eax # imm = 0xFFFF
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: shll %cl, %eax
+; X86-NOBMI2-NEXT: movzwl %ax, %eax
; X86-NOBMI2-NEXT: shrl %cl, %eax
-; X86-NOBMI2-NEXT: andw {{[0-9]+}}(%esp), %ax
; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_highbits16_c0:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $65535, %ecx # imm = 0xFFFF
+; X86-BMI2-NEXT: shlxl %eax, {{[0-9]+}}(%esp), %ecx
+; X86-BMI2-NEXT: movzwl %cx, %ecx
; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax
-; X86-BMI2-NEXT: andw {{[0-9]+}}(%esp), %ax
; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_highbits16_c0:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $65535, %eax # imm = 0xFFFF
; X64-NOBMI2-NEXT: movl %esi, %ecx
+; X64-NOBMI2-NEXT: shll %cl, %edi
+; X64-NOBMI2-NEXT: movzwl %di, %eax
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shrl %cl, %eax
-; X64-NOBMI2-NEXT: andl %edi, %eax
; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_highbits16_c0:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $65535, %eax # imm = 0xFFFF
+; X64-BMI2-NEXT: shlxl %esi, %edi, %eax
+; X64-BMI2-NEXT: movzwl %ax, %eax
; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andl %edi, %eax
; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-BMI2-NEXT: retq
%mask = lshr i16 -1, %numhighbits
; X86-NOBMI2-LABEL: clear_highbits16_c1_indexzext:
; X86-NOBMI2: # %bb.0:
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $65535, %eax # imm = 0xFFFF
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: shll %cl, %eax
+; X86-NOBMI2-NEXT: movzwl %ax, %eax
; X86-NOBMI2-NEXT: shrl %cl, %eax
-; X86-NOBMI2-NEXT: andw {{[0-9]+}}(%esp), %ax
; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_highbits16_c1_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $65535, %ecx # imm = 0xFFFF
+; X86-BMI2-NEXT: shlxl %eax, {{[0-9]+}}(%esp), %ecx
+; X86-BMI2-NEXT: movzwl %cx, %ecx
; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax
-; X86-BMI2-NEXT: andw {{[0-9]+}}(%esp), %ax
; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_highbits16_c1_indexzext:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $65535, %eax # imm = 0xFFFF
; X64-NOBMI2-NEXT: movl %esi, %ecx
+; X64-NOBMI2-NEXT: shll %cl, %edi
+; X64-NOBMI2-NEXT: movzwl %di, %eax
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shrl %cl, %eax
-; X64-NOBMI2-NEXT: andl %edi, %eax
; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_highbits16_c1_indexzext:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $65535, %eax # imm = 0xFFFF
+; X64-BMI2-NEXT: shlxl %esi, %edi, %eax
+; X64-BMI2-NEXT: movzwl %ax, %eax
; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andl %edi, %eax
; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-BMI2-NEXT: retq
%sh_prom = zext i8 %numhighbits to i16
define i16 @clear_highbits16_c2_load(i16* %w, i16 %numhighbits) nounwind {
; X86-NOBMI2-LABEL: clear_highbits16_c2_load:
; X86-NOBMI2: # %bb.0:
-; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $65535, %eax # imm = 0xFFFF
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: movzwl (%eax), %eax
+; X86-NOBMI2-NEXT: shll %cl, %eax
+; X86-NOBMI2-NEXT: movzwl %ax, %eax
; X86-NOBMI2-NEXT: shrl %cl, %eax
-; X86-NOBMI2-NEXT: andw (%edx), %ax
; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_highbits16_c2_load:
; X86-BMI2: # %bb.0:
-; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $65535, %edx # imm = 0xFFFF
-; X86-BMI2-NEXT: shrxl %eax, %edx, %eax
-; X86-BMI2-NEXT: andw (%ecx), %ax
+; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
+; X86-BMI2-NEXT: movzwl (%ecx), %ecx
+; X86-BMI2-NEXT: shlxl %eax, %ecx, %ecx
+; X86-BMI2-NEXT: movzwl %cx, %ecx
+; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax
; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_highbits16_c2_load:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $65535, %eax # imm = 0xFFFF
; X64-NOBMI2-NEXT: movl %esi, %ecx
+; X64-NOBMI2-NEXT: movzwl (%rdi), %eax
+; X64-NOBMI2-NEXT: shll %cl, %eax
+; X64-NOBMI2-NEXT: movzwl %ax, %eax
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shrl %cl, %eax
-; X64-NOBMI2-NEXT: andw (%rdi), %ax
; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_highbits16_c2_load:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $65535, %eax # imm = 0xFFFF
+; X64-BMI2-NEXT: movzwl (%rdi), %eax
+; X64-BMI2-NEXT: shlxl %esi, %eax, %eax
+; X64-BMI2-NEXT: movzwl %ax, %eax
; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andw (%rdi), %ax
; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-BMI2-NEXT: retq
%val = load i16, i16* %w
define i16 @clear_highbits16_c3_load_indexzext(i16* %w, i8 %numhighbits) nounwind {
; X86-NOBMI2-LABEL: clear_highbits16_c3_load_indexzext:
; X86-NOBMI2: # %bb.0:
-; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $65535, %eax # imm = 0xFFFF
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: movzwl (%eax), %eax
+; X86-NOBMI2-NEXT: shll %cl, %eax
+; X86-NOBMI2-NEXT: movzwl %ax, %eax
; X86-NOBMI2-NEXT: shrl %cl, %eax
-; X86-NOBMI2-NEXT: andw (%edx), %ax
; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_highbits16_c3_load_indexzext:
; X86-BMI2: # %bb.0:
-; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $65535, %edx # imm = 0xFFFF
-; X86-BMI2-NEXT: shrxl %eax, %edx, %eax
-; X86-BMI2-NEXT: andw (%ecx), %ax
+; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
+; X86-BMI2-NEXT: movzwl (%ecx), %ecx
+; X86-BMI2-NEXT: shlxl %eax, %ecx, %ecx
+; X86-BMI2-NEXT: movzwl %cx, %ecx
+; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax
; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_highbits16_c3_load_indexzext:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $65535, %eax # imm = 0xFFFF
; X64-NOBMI2-NEXT: movl %esi, %ecx
+; X64-NOBMI2-NEXT: movzwl (%rdi), %eax
+; X64-NOBMI2-NEXT: shll %cl, %eax
+; X64-NOBMI2-NEXT: movzwl %ax, %eax
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shrl %cl, %eax
-; X64-NOBMI2-NEXT: andw (%rdi), %ax
; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_highbits16_c3_load_indexzext:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $65535, %eax # imm = 0xFFFF
+; X64-BMI2-NEXT: movzwl (%rdi), %eax
+; X64-BMI2-NEXT: shlxl %esi, %eax, %eax
+; X64-BMI2-NEXT: movzwl %ax, %eax
; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andw (%rdi), %ax
; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-BMI2-NEXT: retq
%val = load i16, i16* %w
; X86-NOBMI2-LABEL: clear_highbits16_c4_commutative:
; X86-NOBMI2: # %bb.0:
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $65535, %eax # imm = 0xFFFF
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: shll %cl, %eax
+; X86-NOBMI2-NEXT: movzwl %ax, %eax
; X86-NOBMI2-NEXT: shrl %cl, %eax
-; X86-NOBMI2-NEXT: andw {{[0-9]+}}(%esp), %ax
; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_highbits16_c4_commutative:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $65535, %ecx # imm = 0xFFFF
+; X86-BMI2-NEXT: shlxl %eax, {{[0-9]+}}(%esp), %ecx
+; X86-BMI2-NEXT: movzwl %cx, %ecx
; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax
-; X86-BMI2-NEXT: andw {{[0-9]+}}(%esp), %ax
; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_highbits16_c4_commutative:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $65535, %eax # imm = 0xFFFF
; X64-NOBMI2-NEXT: movl %esi, %ecx
+; X64-NOBMI2-NEXT: shll %cl, %edi
+; X64-NOBMI2-NEXT: movzwl %di, %eax
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shrl %cl, %eax
-; X64-NOBMI2-NEXT: andl %edi, %eax
; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_highbits16_c4_commutative:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $65535, %eax # imm = 0xFFFF
+; X64-BMI2-NEXT: shlxl %esi, %edi, %eax
+; X64-BMI2-NEXT: movzwl %ax, %eax
; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andl %edi, %eax
; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-BMI2-NEXT: retq
%mask = lshr i16 -1, %numhighbits
; X86-NOBMI2-LABEL: clear_highbits32_c0:
; X86-NOBMI2: # %bb.0:
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: shll %cl, %eax
; X86-NOBMI2-NEXT: shrl %cl, %eax
-; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_highbits32_c0:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $-1, %ecx
+; X86-BMI2-NEXT: shlxl %eax, {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax
-; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_highbits32_c0:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $-1, %eax
; X64-NOBMI2-NEXT: movl %esi, %ecx
-; X64-NOBMI2-NEXT: shrl %cl, %eax
-; X64-NOBMI2-NEXT: andl %edi, %eax
+; X64-NOBMI2-NEXT: shll %cl, %edi
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
+; X64-NOBMI2-NEXT: shrl %cl, %edi
+; X64-NOBMI2-NEXT: movl %edi, %eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_highbits32_c0:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $-1, %eax
+; X64-BMI2-NEXT: shlxl %esi, %edi, %eax
; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andl %edi, %eax
; X64-BMI2-NEXT: retq
%mask = lshr i32 -1, %numhighbits
%masked = and i32 %mask, %val
; X86-NOBMI2-LABEL: clear_highbits32_c1_indexzext:
; X86-NOBMI2: # %bb.0:
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: shll %cl, %eax
; X86-NOBMI2-NEXT: shrl %cl, %eax
-; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_highbits32_c1_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $-1, %ecx
+; X86-BMI2-NEXT: shlxl %eax, {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax
-; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_highbits32_c1_indexzext:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $-1, %eax
; X64-NOBMI2-NEXT: movl %esi, %ecx
-; X64-NOBMI2-NEXT: shrl %cl, %eax
-; X64-NOBMI2-NEXT: andl %edi, %eax
+; X64-NOBMI2-NEXT: shll %cl, %edi
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
+; X64-NOBMI2-NEXT: shrl %cl, %edi
+; X64-NOBMI2-NEXT: movl %edi, %eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_highbits32_c1_indexzext:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $-1, %eax
+; X64-BMI2-NEXT: shlxl %esi, %edi, %eax
; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andl %edi, %eax
; X64-BMI2-NEXT: retq
%sh_prom = zext i8 %numhighbits to i32
%mask = lshr i32 -1, %sh_prom
define i32 @clear_highbits32_c2_load(i32* %w, i32 %numhighbits) nounwind {
; X86-NOBMI2-LABEL: clear_highbits32_c2_load:
; X86-NOBMI2: # %bb.0:
-; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: movl (%eax), %eax
+; X86-NOBMI2-NEXT: shll %cl, %eax
; X86-NOBMI2-NEXT: shrl %cl, %eax
-; X86-NOBMI2-NEXT: andl (%edx), %eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_highbits32_c2_load:
; X86-BMI2: # %bb.0:
-; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
-; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $-1, %edx
-; X86-BMI2-NEXT: shrxl %eax, %edx, %eax
-; X86-BMI2-NEXT: andl (%ecx), %eax
+; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
+; X86-BMI2-NEXT: shlxl %ecx, (%eax), %eax
+; X86-BMI2-NEXT: shrxl %ecx, %eax, %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_highbits32_c2_load:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $-1, %eax
; X64-NOBMI2-NEXT: movl %esi, %ecx
+; X64-NOBMI2-NEXT: movl (%rdi), %eax
+; X64-NOBMI2-NEXT: shll %cl, %eax
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shrl %cl, %eax
-; X64-NOBMI2-NEXT: andl (%rdi), %eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_highbits32_c2_load:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $-1, %eax
+; X64-BMI2-NEXT: shlxl %esi, (%rdi), %eax
; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andl (%rdi), %eax
; X64-BMI2-NEXT: retq
%val = load i32, i32* %w
%mask = lshr i32 -1, %numhighbits
define i32 @clear_highbits32_c3_load_indexzext(i32* %w, i8 %numhighbits) nounwind {
; X86-NOBMI2-LABEL: clear_highbits32_c3_load_indexzext:
; X86-NOBMI2: # %bb.0:
-; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: movl (%eax), %eax
+; X86-NOBMI2-NEXT: shll %cl, %eax
; X86-NOBMI2-NEXT: shrl %cl, %eax
-; X86-NOBMI2-NEXT: andl (%edx), %eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_highbits32_c3_load_indexzext:
; X86-BMI2: # %bb.0:
-; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
-; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $-1, %edx
-; X86-BMI2-NEXT: shrxl %eax, %edx, %eax
-; X86-BMI2-NEXT: andl (%ecx), %eax
+; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
+; X86-BMI2-NEXT: shlxl %ecx, (%eax), %eax
+; X86-BMI2-NEXT: shrxl %ecx, %eax, %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_highbits32_c3_load_indexzext:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $-1, %eax
; X64-NOBMI2-NEXT: movl %esi, %ecx
+; X64-NOBMI2-NEXT: movl (%rdi), %eax
+; X64-NOBMI2-NEXT: shll %cl, %eax
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shrl %cl, %eax
-; X64-NOBMI2-NEXT: andl (%rdi), %eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_highbits32_c3_load_indexzext:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $-1, %eax
+; X64-BMI2-NEXT: shlxl %esi, (%rdi), %eax
; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andl (%rdi), %eax
; X64-BMI2-NEXT: retq
%val = load i32, i32* %w
%sh_prom = zext i8 %numhighbits to i32
; X86-NOBMI2-LABEL: clear_highbits32_c4_commutative:
; X86-NOBMI2: # %bb.0:
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: shll %cl, %eax
; X86-NOBMI2-NEXT: shrl %cl, %eax
-; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_highbits32_c4_commutative:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $-1, %ecx
+; X86-BMI2-NEXT: shlxl %eax, {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: shrxl %eax, %ecx, %eax
-; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_highbits32_c4_commutative:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $-1, %eax
; X64-NOBMI2-NEXT: movl %esi, %ecx
-; X64-NOBMI2-NEXT: shrl %cl, %eax
-; X64-NOBMI2-NEXT: andl %edi, %eax
+; X64-NOBMI2-NEXT: shll %cl, %edi
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
+; X64-NOBMI2-NEXT: shrl %cl, %edi
+; X64-NOBMI2-NEXT: movl %edi, %eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_highbits32_c4_commutative:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $-1, %eax
+; X64-BMI2-NEXT: shlxl %esi, %edi, %eax
; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andl %edi, %eax
; X64-BMI2-NEXT: retq
%mask = lshr i32 -1, %numhighbits
%masked = and i32 %val, %mask ; swapped order
;
; X64-NOBMI2-LABEL: clear_highbits64_c0:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movq $-1, %rax
-; X64-NOBMI2-NEXT: movl %esi, %ecx
-; X64-NOBMI2-NEXT: shrq %cl, %rax
-; X64-NOBMI2-NEXT: andq %rdi, %rax
+; X64-NOBMI2-NEXT: movq %rsi, %rcx
+; X64-NOBMI2-NEXT: shlq %cl, %rdi
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx
+; X64-NOBMI2-NEXT: shrq %cl, %rdi
+; X64-NOBMI2-NEXT: movq %rdi, %rax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_highbits64_c0:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movq $-1, %rax
+; X64-BMI2-NEXT: shlxq %rsi, %rdi, %rax
; X64-BMI2-NEXT: shrxq %rsi, %rax, %rax
-; X64-BMI2-NEXT: andq %rdi, %rax
; X64-BMI2-NEXT: retq
%mask = lshr i64 -1, %numhighbits
%masked = and i64 %mask, %val
;
; X64-NOBMI2-LABEL: clear_highbits64_c1_indexzext:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movq $-1, %rax
; X64-NOBMI2-NEXT: movl %esi, %ecx
-; X64-NOBMI2-NEXT: shrq %cl, %rax
-; X64-NOBMI2-NEXT: andq %rdi, %rax
+; X64-NOBMI2-NEXT: shlq %cl, %rdi
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
+; X64-NOBMI2-NEXT: shrq %cl, %rdi
+; X64-NOBMI2-NEXT: movq %rdi, %rax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_highbits64_c1_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi
-; X64-BMI2-NEXT: movq $-1, %rax
+; X64-BMI2-NEXT: shlxq %rsi, %rdi, %rax
; X64-BMI2-NEXT: shrxq %rsi, %rax, %rax
-; X64-BMI2-NEXT: andq %rdi, %rax
; X64-BMI2-NEXT: retq
%sh_prom = zext i8 %numhighbits to i64
%mask = lshr i64 -1, %sh_prom
;
; X64-NOBMI2-LABEL: clear_highbits64_c2_load:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movq $-1, %rax
-; X64-NOBMI2-NEXT: movl %esi, %ecx
+; X64-NOBMI2-NEXT: movq %rsi, %rcx
+; X64-NOBMI2-NEXT: movq (%rdi), %rax
+; X64-NOBMI2-NEXT: shlq %cl, %rax
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-NOBMI2-NEXT: shrq %cl, %rax
-; X64-NOBMI2-NEXT: andq (%rdi), %rax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_highbits64_c2_load:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movq $-1, %rax
+; X64-BMI2-NEXT: shlxq %rsi, (%rdi), %rax
; X64-BMI2-NEXT: shrxq %rsi, %rax, %rax
-; X64-BMI2-NEXT: andq (%rdi), %rax
; X64-BMI2-NEXT: retq
%val = load i64, i64* %w
%mask = lshr i64 -1, %numhighbits
;
; X64-NOBMI2-LABEL: clear_highbits64_c3_load_indexzext:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movq $-1, %rax
; X64-NOBMI2-NEXT: movl %esi, %ecx
+; X64-NOBMI2-NEXT: movq (%rdi), %rax
+; X64-NOBMI2-NEXT: shlq %cl, %rax
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shrq %cl, %rax
-; X64-NOBMI2-NEXT: andq (%rdi), %rax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_highbits64_c3_load_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi
-; X64-BMI2-NEXT: movq $-1, %rax
+; X64-BMI2-NEXT: shlxq %rsi, (%rdi), %rax
; X64-BMI2-NEXT: shrxq %rsi, %rax, %rax
-; X64-BMI2-NEXT: andq (%rdi), %rax
; X64-BMI2-NEXT: retq
%val = load i64, i64* %w
%sh_prom = zext i8 %numhighbits to i64
;
; X64-NOBMI2-LABEL: clear_highbits64_c4_commutative:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movq $-1, %rax
-; X64-NOBMI2-NEXT: movl %esi, %ecx
-; X64-NOBMI2-NEXT: shrq %cl, %rax
-; X64-NOBMI2-NEXT: andq %rdi, %rax
+; X64-NOBMI2-NEXT: movq %rsi, %rcx
+; X64-NOBMI2-NEXT: shlq %cl, %rdi
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx
+; X64-NOBMI2-NEXT: shrq %cl, %rdi
+; X64-NOBMI2-NEXT: movq %rdi, %rax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_highbits64_c4_commutative:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movq $-1, %rax
+; X64-BMI2-NEXT: shlxq %rsi, %rdi, %rax
; X64-BMI2-NEXT: shrxq %rsi, %rax, %rax
-; X64-BMI2-NEXT: andq %rdi, %rax
; X64-BMI2-NEXT: retq
%mask = lshr i64 -1, %numhighbits
%masked = and i64 %val, %mask ; swapped order
; X86-LABEL: clear_lowbits8_c0:
; X86: # %bb.0:
; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NEXT: movb $-1, %al
+; X86-NEXT: movb {{[0-9]+}}(%esp), %al
+; X86-NEXT: shrb %cl, %al
; X86-NEXT: shlb %cl, %al
-; X86-NEXT: andb {{[0-9]+}}(%esp), %al
; X86-NEXT: retl
;
; X64-LABEL: clear_lowbits8_c0:
; X64: # %bb.0:
-; X64-NEXT: movb $-1, %al
; X64-NEXT: movl %esi, %ecx
-; X64-NEXT: shlb %cl, %al
-; X64-NEXT: andb %dil, %al
+; X64-NEXT: shrb %cl, %dil
+; X64-NEXT: # kill: def $cl killed $cl killed $ecx
+; X64-NEXT: shlb %cl, %dil
+; X64-NEXT: movl %edi, %eax
; X64-NEXT: retq
%mask = shl i8 -1, %numlowbits
%masked = and i8 %mask, %val
define i8 @clear_lowbits8_c2_load(i8* %w, i8 %numlowbits) nounwind {
; X86-LABEL: clear_lowbits8_c2_load:
; X86: # %bb.0:
-; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NEXT: movb $-1, %al
+; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT: movb (%eax), %al
+; X86-NEXT: shrb %cl, %al
; X86-NEXT: shlb %cl, %al
-; X86-NEXT: andb (%edx), %al
; X86-NEXT: retl
;
; X64-LABEL: clear_lowbits8_c2_load:
; X64: # %bb.0:
-; X64-NEXT: movb $-1, %al
; X64-NEXT: movl %esi, %ecx
+; X64-NEXT: movb (%rdi), %al
+; X64-NEXT: shrb %cl, %al
+; X64-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NEXT: shlb %cl, %al
-; X64-NEXT: andb (%rdi), %al
; X64-NEXT: retq
%val = load i8, i8* %w
%mask = shl i8 -1, %numlowbits
; X86-LABEL: clear_lowbits8_c4_commutative:
; X86: # %bb.0:
; X86-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NEXT: movb $-1, %al
+; X86-NEXT: movb {{[0-9]+}}(%esp), %al
+; X86-NEXT: shrb %cl, %al
; X86-NEXT: shlb %cl, %al
-; X86-NEXT: andb {{[0-9]+}}(%esp), %al
; X86-NEXT: retl
;
; X64-LABEL: clear_lowbits8_c4_commutative:
; X64: # %bb.0:
-; X64-NEXT: movb $-1, %al
; X64-NEXT: movl %esi, %ecx
-; X64-NEXT: shlb %cl, %al
-; X64-NEXT: andb %dil, %al
+; X64-NEXT: shrb %cl, %dil
+; X64-NEXT: # kill: def $cl killed $cl killed $ecx
+; X64-NEXT: shlb %cl, %dil
+; X64-NEXT: movl %edi, %eax
; X64-NEXT: retq
%mask = shl i8 -1, %numlowbits
%masked = and i8 %val, %mask ; swapped order
; X86-NOBMI2-LABEL: clear_lowbits16_c0:
; X86-NOBMI2: # %bb.0:
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: movzwl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andw {{[0-9]+}}(%esp), %ax
; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits16_c0:
; X86-BMI2: # %bb.0:
-; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $-1, %ecx
-; X86-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X86-BMI2-NEXT: andw {{[0-9]+}}(%esp), %ax
+; X86-BMI2-NEXT: movzwl {{[0-9]+}}(%esp), %eax
+; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
+; X86-BMI2-NEXT: shrxl %ecx, %eax, %eax
+; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits16_c0:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $-1, %eax
; X64-NOBMI2-NEXT: movl %esi, %ecx
+; X64-NOBMI2-NEXT: movzwl %di, %eax
+; X64-NOBMI2-NEXT: shrl %cl, %eax
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andl %edi, %eax
; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits16_c0:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $-1, %eax
+; X64-BMI2-NEXT: movzwl %di, %eax
+; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
; X64-BMI2-NEXT: shlxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andl %edi, %eax
; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-BMI2-NEXT: retq
%mask = shl i16 -1, %numlowbits
; X86-NOBMI2-LABEL: clear_lowbits16_c1_indexzext:
; X86-NOBMI2: # %bb.0:
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: movzwl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andw {{[0-9]+}}(%esp), %ax
; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits16_c1_indexzext:
; X86-BMI2: # %bb.0:
-; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $-1, %ecx
-; X86-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X86-BMI2-NEXT: andw {{[0-9]+}}(%esp), %ax
+; X86-BMI2-NEXT: movzwl {{[0-9]+}}(%esp), %eax
+; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
+; X86-BMI2-NEXT: shrxl %ecx, %eax, %eax
+; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits16_c1_indexzext:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $-1, %eax
; X64-NOBMI2-NEXT: movl %esi, %ecx
+; X64-NOBMI2-NEXT: movzwl %di, %eax
+; X64-NOBMI2-NEXT: shrl %cl, %eax
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andl %edi, %eax
; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits16_c1_indexzext:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $-1, %eax
+; X64-BMI2-NEXT: movzwl %di, %eax
+; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
; X64-BMI2-NEXT: shlxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andl %edi, %eax
; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-BMI2-NEXT: retq
%sh_prom = zext i8 %numlowbits to i16
define i16 @clear_lowbits16_c2_load(i16* %w, i16 %numlowbits) nounwind {
; X86-NOBMI2-LABEL: clear_lowbits16_c2_load:
; X86-NOBMI2: # %bb.0:
-; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: movzwl (%eax), %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andw (%edx), %ax
; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits16_c2_load:
; X86-BMI2: # %bb.0:
-; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $-1, %edx
-; X86-BMI2-NEXT: shlxl %eax, %edx, %eax
-; X86-BMI2-NEXT: andw (%ecx), %ax
+; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
+; X86-BMI2-NEXT: movzwl (%ecx), %ecx
+; X86-BMI2-NEXT: shrxl %eax, %ecx, %ecx
+; X86-BMI2-NEXT: shlxl %eax, %ecx, %eax
; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits16_c2_load:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $-1, %eax
; X64-NOBMI2-NEXT: movl %esi, %ecx
+; X64-NOBMI2-NEXT: movzwl (%rdi), %eax
+; X64-NOBMI2-NEXT: shrl %cl, %eax
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andw (%rdi), %ax
; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits16_c2_load:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $-1, %eax
+; X64-BMI2-NEXT: movzwl (%rdi), %eax
+; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
; X64-BMI2-NEXT: shlxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andw (%rdi), %ax
; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-BMI2-NEXT: retq
%val = load i16, i16* %w
define i16 @clear_lowbits16_c3_load_indexzext(i16* %w, i8 %numlowbits) nounwind {
; X86-NOBMI2-LABEL: clear_lowbits16_c3_load_indexzext:
; X86-NOBMI2: # %bb.0:
-; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: movzwl (%eax), %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andw (%edx), %ax
; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits16_c3_load_indexzext:
; X86-BMI2: # %bb.0:
-; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $-1, %edx
-; X86-BMI2-NEXT: shlxl %eax, %edx, %eax
-; X86-BMI2-NEXT: andw (%ecx), %ax
+; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
+; X86-BMI2-NEXT: movzwl (%ecx), %ecx
+; X86-BMI2-NEXT: shrxl %eax, %ecx, %ecx
+; X86-BMI2-NEXT: shlxl %eax, %ecx, %eax
; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits16_c3_load_indexzext:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $-1, %eax
; X64-NOBMI2-NEXT: movl %esi, %ecx
+; X64-NOBMI2-NEXT: movzwl (%rdi), %eax
+; X64-NOBMI2-NEXT: shrl %cl, %eax
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andw (%rdi), %ax
; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits16_c3_load_indexzext:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $-1, %eax
+; X64-BMI2-NEXT: movzwl (%rdi), %eax
+; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
; X64-BMI2-NEXT: shlxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andw (%rdi), %ax
; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-BMI2-NEXT: retq
%val = load i16, i16* %w
; X86-NOBMI2-LABEL: clear_lowbits16_c4_commutative:
; X86-NOBMI2: # %bb.0:
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: movzwl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andw {{[0-9]+}}(%esp), %ax
; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits16_c4_commutative:
; X86-BMI2: # %bb.0:
-; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $-1, %ecx
-; X86-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X86-BMI2-NEXT: andw {{[0-9]+}}(%esp), %ax
+; X86-BMI2-NEXT: movzwl {{[0-9]+}}(%esp), %eax
+; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
+; X86-BMI2-NEXT: shrxl %ecx, %eax, %eax
+; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits16_c4_commutative:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $-1, %eax
; X64-NOBMI2-NEXT: movl %esi, %ecx
+; X64-NOBMI2-NEXT: movzwl %di, %eax
+; X64-NOBMI2-NEXT: shrl %cl, %eax
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andl %edi, %eax
; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits16_c4_commutative:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $-1, %eax
+; X64-BMI2-NEXT: movzwl %di, %eax
+; X64-BMI2-NEXT: shrxl %esi, %eax, %eax
; X64-BMI2-NEXT: shlxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andl %edi, %eax
; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-BMI2-NEXT: retq
%mask = shl i16 -1, %numlowbits
; X86-NOBMI2-LABEL: clear_lowbits32_c0:
; X86-NOBMI2: # %bb.0:
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits32_c0:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $-1, %ecx
+; X86-BMI2-NEXT: shrxl %eax, {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits32_c0:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $-1, %eax
; X64-NOBMI2-NEXT: movl %esi, %ecx
-; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andl %edi, %eax
+; X64-NOBMI2-NEXT: shrl %cl, %edi
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
+; X64-NOBMI2-NEXT: shll %cl, %edi
+; X64-NOBMI2-NEXT: movl %edi, %eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits32_c0:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $-1, %eax
+; X64-BMI2-NEXT: shrxl %esi, %edi, %eax
; X64-BMI2-NEXT: shlxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andl %edi, %eax
; X64-BMI2-NEXT: retq
%mask = shl i32 -1, %numlowbits
%masked = and i32 %mask, %val
; X86-NOBMI2-LABEL: clear_lowbits32_c1_indexzext:
; X86-NOBMI2: # %bb.0:
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits32_c1_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $-1, %ecx
+; X86-BMI2-NEXT: shrxl %eax, {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits32_c1_indexzext:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $-1, %eax
; X64-NOBMI2-NEXT: movl %esi, %ecx
-; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andl %edi, %eax
+; X64-NOBMI2-NEXT: shrl %cl, %edi
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
+; X64-NOBMI2-NEXT: shll %cl, %edi
+; X64-NOBMI2-NEXT: movl %edi, %eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits32_c1_indexzext:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $-1, %eax
+; X64-BMI2-NEXT: shrxl %esi, %edi, %eax
; X64-BMI2-NEXT: shlxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andl %edi, %eax
; X64-BMI2-NEXT: retq
%sh_prom = zext i8 %numlowbits to i32
%mask = shl i32 -1, %sh_prom
define i32 @clear_lowbits32_c2_load(i32* %w, i32 %numlowbits) nounwind {
; X86-NOBMI2-LABEL: clear_lowbits32_c2_load:
; X86-NOBMI2: # %bb.0:
-; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: movl (%eax), %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andl (%edx), %eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits32_c2_load:
; X86-BMI2: # %bb.0:
-; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
-; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $-1, %edx
-; X86-BMI2-NEXT: shlxl %eax, %edx, %eax
-; X86-BMI2-NEXT: andl (%ecx), %eax
+; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
+; X86-BMI2-NEXT: shrxl %ecx, (%eax), %eax
+; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits32_c2_load:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $-1, %eax
; X64-NOBMI2-NEXT: movl %esi, %ecx
+; X64-NOBMI2-NEXT: movl (%rdi), %eax
+; X64-NOBMI2-NEXT: shrl %cl, %eax
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andl (%rdi), %eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits32_c2_load:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $-1, %eax
+; X64-BMI2-NEXT: shrxl %esi, (%rdi), %eax
; X64-BMI2-NEXT: shlxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andl (%rdi), %eax
; X64-BMI2-NEXT: retq
%val = load i32, i32* %w
%mask = shl i32 -1, %numlowbits
define i32 @clear_lowbits32_c3_load_indexzext(i32* %w, i8 %numlowbits) nounwind {
; X86-NOBMI2-LABEL: clear_lowbits32_c3_load_indexzext:
; X86-NOBMI2: # %bb.0:
-; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: movl (%eax), %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andl (%edx), %eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits32_c3_load_indexzext:
; X86-BMI2: # %bb.0:
-; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
-; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $-1, %edx
-; X86-BMI2-NEXT: shlxl %eax, %edx, %eax
-; X86-BMI2-NEXT: andl (%ecx), %eax
+; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
+; X86-BMI2-NEXT: shrxl %ecx, (%eax), %eax
+; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits32_c3_load_indexzext:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $-1, %eax
; X64-NOBMI2-NEXT: movl %esi, %ecx
+; X64-NOBMI2-NEXT: movl (%rdi), %eax
+; X64-NOBMI2-NEXT: shrl %cl, %eax
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andl (%rdi), %eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits32_c3_load_indexzext:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $-1, %eax
+; X64-BMI2-NEXT: shrxl %esi, (%rdi), %eax
; X64-BMI2-NEXT: shlxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andl (%rdi), %eax
; X64-BMI2-NEXT: retq
%val = load i32, i32* %w
%sh_prom = zext i8 %numlowbits to i32
; X86-NOBMI2-LABEL: clear_lowbits32_c4_commutative:
; X86-NOBMI2: # %bb.0:
; X86-NOBMI2-NEXT: movb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits32_c4_commutative:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $-1, %ecx
+; X86-BMI2-NEXT: shrxl %eax, {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits32_c4_commutative:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movl $-1, %eax
; X64-NOBMI2-NEXT: movl %esi, %ecx
-; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andl %edi, %eax
+; X64-NOBMI2-NEXT: shrl %cl, %edi
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
+; X64-NOBMI2-NEXT: shll %cl, %edi
+; X64-NOBMI2-NEXT: movl %edi, %eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits32_c4_commutative:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $-1, %eax
+; X64-BMI2-NEXT: shrxl %esi, %edi, %eax
; X64-BMI2-NEXT: shlxl %esi, %eax, %eax
-; X64-BMI2-NEXT: andl %edi, %eax
; X64-BMI2-NEXT: retq
%mask = shl i32 -1, %numlowbits
%masked = and i32 %val, %mask ; swapped order
;
; X64-NOBMI2-LABEL: clear_lowbits64_c0:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movq $-1, %rax
-; X64-NOBMI2-NEXT: movl %esi, %ecx
-; X64-NOBMI2-NEXT: shlq %cl, %rax
-; X64-NOBMI2-NEXT: andq %rdi, %rax
+; X64-NOBMI2-NEXT: movq %rsi, %rcx
+; X64-NOBMI2-NEXT: shrq %cl, %rdi
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx
+; X64-NOBMI2-NEXT: shlq %cl, %rdi
+; X64-NOBMI2-NEXT: movq %rdi, %rax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits64_c0:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movq $-1, %rax
+; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax
; X64-BMI2-NEXT: shlxq %rsi, %rax, %rax
-; X64-BMI2-NEXT: andq %rdi, %rax
; X64-BMI2-NEXT: retq
%mask = shl i64 -1, %numlowbits
%masked = and i64 %mask, %val
;
; X64-NOBMI2-LABEL: clear_lowbits64_c1_indexzext:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movq $-1, %rax
; X64-NOBMI2-NEXT: movl %esi, %ecx
-; X64-NOBMI2-NEXT: shlq %cl, %rax
-; X64-NOBMI2-NEXT: andq %rdi, %rax
+; X64-NOBMI2-NEXT: shrq %cl, %rdi
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
+; X64-NOBMI2-NEXT: shlq %cl, %rdi
+; X64-NOBMI2-NEXT: movq %rdi, %rax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits64_c1_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi
-; X64-BMI2-NEXT: movq $-1, %rax
+; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax
; X64-BMI2-NEXT: shlxq %rsi, %rax, %rax
-; X64-BMI2-NEXT: andq %rdi, %rax
; X64-BMI2-NEXT: retq
%sh_prom = zext i8 %numlowbits to i64
%mask = shl i64 -1, %sh_prom
;
; X64-NOBMI2-LABEL: clear_lowbits64_c2_load:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movq $-1, %rax
-; X64-NOBMI2-NEXT: movl %esi, %ecx
+; X64-NOBMI2-NEXT: movq %rsi, %rcx
+; X64-NOBMI2-NEXT: movq (%rdi), %rax
+; X64-NOBMI2-NEXT: shrq %cl, %rax
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx
; X64-NOBMI2-NEXT: shlq %cl, %rax
-; X64-NOBMI2-NEXT: andq (%rdi), %rax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits64_c2_load:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movq $-1, %rax
+; X64-BMI2-NEXT: shrxq %rsi, (%rdi), %rax
; X64-BMI2-NEXT: shlxq %rsi, %rax, %rax
-; X64-BMI2-NEXT: andq (%rdi), %rax
; X64-BMI2-NEXT: retq
%val = load i64, i64* %w
%mask = shl i64 -1, %numlowbits
;
; X64-NOBMI2-LABEL: clear_lowbits64_c3_load_indexzext:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movq $-1, %rax
; X64-NOBMI2-NEXT: movl %esi, %ecx
+; X64-NOBMI2-NEXT: movq (%rdi), %rax
+; X64-NOBMI2-NEXT: shrq %cl, %rax
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shlq %cl, %rax
-; X64-NOBMI2-NEXT: andq (%rdi), %rax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits64_c3_load_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: # kill: def $esi killed $esi def $rsi
-; X64-BMI2-NEXT: movq $-1, %rax
+; X64-BMI2-NEXT: shrxq %rsi, (%rdi), %rax
; X64-BMI2-NEXT: shlxq %rsi, %rax, %rax
-; X64-BMI2-NEXT: andq (%rdi), %rax
; X64-BMI2-NEXT: retq
%val = load i64, i64* %w
%sh_prom = zext i8 %numlowbits to i64
;
; X64-NOBMI2-LABEL: clear_lowbits64_c4_commutative:
; X64-NOBMI2: # %bb.0:
-; X64-NOBMI2-NEXT: movq $-1, %rax
-; X64-NOBMI2-NEXT: movl %esi, %ecx
-; X64-NOBMI2-NEXT: shlq %cl, %rax
-; X64-NOBMI2-NEXT: andq %rdi, %rax
+; X64-NOBMI2-NEXT: movq %rsi, %rcx
+; X64-NOBMI2-NEXT: shrq %cl, %rdi
+; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $rcx
+; X64-NOBMI2-NEXT: shlq %cl, %rdi
+; X64-NOBMI2-NEXT: movq %rdi, %rax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits64_c4_commutative:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movq $-1, %rax
+; X64-BMI2-NEXT: shrxq %rsi, %rdi, %rax
; X64-BMI2-NEXT: shlxq %rsi, %rax, %rax
-; X64-BMI2-NEXT: andq %rdi, %rax
; X64-BMI2-NEXT: retq
%mask = shl i64 -1, %numlowbits
%masked = and i64 %val, %mask ; swapped order
define i8 @clear_lowbits8_ic0(i8 %val, i8 %numlowbits) nounwind {
; X86-LABEL: clear_lowbits8_ic0:
; X86: # %bb.0:
+; X86-NEXT: movb {{[0-9]+}}(%esp), %al
; X86-NEXT: movb $8, %cl
; X86-NEXT: subb {{[0-9]+}}(%esp), %cl
-; X86-NEXT: movb $-1, %al
+; X86-NEXT: shrb %cl, %al
; X86-NEXT: shlb %cl, %al
-; X86-NEXT: andb {{[0-9]+}}(%esp), %al
; X86-NEXT: retl
;
; X64-LABEL: clear_lowbits8_ic0:
; X64: # %bb.0:
; X64-NEXT: movb $8, %cl
; X64-NEXT: subb %sil, %cl
-; X64-NEXT: movb $-1, %al
-; X64-NEXT: shlb %cl, %al
-; X64-NEXT: andb %dil, %al
+; X64-NEXT: shrb %cl, %dil
+; X64-NEXT: shlb %cl, %dil
+; X64-NEXT: movl %edi, %eax
; X64-NEXT: retq
%numhighbits = sub i8 8, %numlowbits
%mask = shl i8 -1, %numhighbits
define i8 @clear_lowbits8_ic2_load(i8* %w, i8 %numlowbits) nounwind {
; X86-LABEL: clear_lowbits8_ic2_load:
; X86: # %bb.0:
-; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
+; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT: movb (%eax), %al
; X86-NEXT: movb $8, %cl
; X86-NEXT: subb {{[0-9]+}}(%esp), %cl
-; X86-NEXT: movb $-1, %al
+; X86-NEXT: shrb %cl, %al
; X86-NEXT: shlb %cl, %al
-; X86-NEXT: andb (%edx), %al
; X86-NEXT: retl
;
; X64-LABEL: clear_lowbits8_ic2_load:
; X64: # %bb.0:
+; X64-NEXT: movb (%rdi), %al
; X64-NEXT: movb $8, %cl
; X64-NEXT: subb %sil, %cl
-; X64-NEXT: movb $-1, %al
+; X64-NEXT: shrb %cl, %al
; X64-NEXT: shlb %cl, %al
-; X64-NEXT: andb (%rdi), %al
; X64-NEXT: retq
%val = load i8, i8* %w
%numhighbits = sub i8 8, %numlowbits
define i8 @clear_lowbits8_ic4_commutative(i8 %val, i8 %numlowbits) nounwind {
; X86-LABEL: clear_lowbits8_ic4_commutative:
; X86: # %bb.0:
+; X86-NEXT: movb {{[0-9]+}}(%esp), %al
; X86-NEXT: movb $8, %cl
; X86-NEXT: subb {{[0-9]+}}(%esp), %cl
-; X86-NEXT: movb $-1, %al
+; X86-NEXT: shrb %cl, %al
; X86-NEXT: shlb %cl, %al
-; X86-NEXT: andb {{[0-9]+}}(%esp), %al
; X86-NEXT: retl
;
; X64-LABEL: clear_lowbits8_ic4_commutative:
; X64: # %bb.0:
; X64-NEXT: movb $8, %cl
; X64-NEXT: subb %sil, %cl
-; X64-NEXT: movb $-1, %al
-; X64-NEXT: shlb %cl, %al
-; X64-NEXT: andb %dil, %al
+; X64-NEXT: shrb %cl, %dil
+; X64-NEXT: shlb %cl, %dil
+; X64-NEXT: movl %edi, %eax
; X64-NEXT: retq
%numhighbits = sub i8 8, %numlowbits
%mask = shl i8 -1, %numhighbits
define i16 @clear_lowbits16_ic0(i16 %val, i16 %numlowbits) nounwind {
; X86-NOBMI2-LABEL: clear_lowbits16_ic0:
; X86-NOBMI2: # %bb.0:
+; X86-NOBMI2-NEXT: movzwl {{[0-9]+}}(%esp), %eax
; X86-NOBMI2-NEXT: movw $16, %cx
; X86-NOBMI2-NEXT: subw {{[0-9]+}}(%esp), %cx
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: # kill: def $cl killed $cl killed $cx
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andw {{[0-9]+}}(%esp), %ax
; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits16_ic0:
; X86-BMI2: # %bb.0:
-; X86-BMI2-NEXT: movw $16, %ax
-; X86-BMI2-NEXT: subw {{[0-9]+}}(%esp), %ax
-; X86-BMI2-NEXT: movl $-1, %ecx
-; X86-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X86-BMI2-NEXT: andw {{[0-9]+}}(%esp), %ax
+; X86-BMI2-NEXT: movzwl {{[0-9]+}}(%esp), %eax
+; X86-BMI2-NEXT: movw $16, %cx
+; X86-BMI2-NEXT: subw {{[0-9]+}}(%esp), %cx
+; X86-BMI2-NEXT: shrxl %ecx, %eax, %eax
+; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits16_ic0:
; X64-NOBMI2: # %bb.0:
+; X64-NOBMI2-NEXT: movzwl %di, %eax
; X64-NOBMI2-NEXT: movl $16, %ecx
; X64-NOBMI2-NEXT: subl %esi, %ecx
-; X64-NOBMI2-NEXT: movl $-1, %eax
+; X64-NOBMI2-NEXT: shrl %cl, %eax
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andl %edi, %eax
; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits16_ic0:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $16, %eax
-; X64-BMI2-NEXT: subl %esi, %eax
-; X64-BMI2-NEXT: movl $-1, %ecx
-; X64-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X64-BMI2-NEXT: andl %edi, %eax
+; X64-BMI2-NEXT: movzwl %di, %eax
+; X64-BMI2-NEXT: movl $16, %ecx
+; X64-BMI2-NEXT: subl %esi, %ecx
+; X64-BMI2-NEXT: shrxl %ecx, %eax, %eax
+; X64-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-BMI2-NEXT: retq
%numhighbits = sub i16 16, %numlowbits
define i16 @clear_lowbits16_ic1_indexzext(i16 %val, i8 %numlowbits) nounwind {
; X86-NOBMI2-LABEL: clear_lowbits16_ic1_indexzext:
; X86-NOBMI2: # %bb.0:
+; X86-NOBMI2-NEXT: movzwl {{[0-9]+}}(%esp), %eax
; X86-NOBMI2-NEXT: movb $16, %cl
; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andw {{[0-9]+}}(%esp), %ax
; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits16_ic1_indexzext:
; X86-BMI2: # %bb.0:
-; X86-BMI2-NEXT: movb $16, %al
-; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $-1, %ecx
-; X86-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X86-BMI2-NEXT: andw {{[0-9]+}}(%esp), %ax
+; X86-BMI2-NEXT: movzwl {{[0-9]+}}(%esp), %eax
+; X86-BMI2-NEXT: movb $16, %cl
+; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
+; X86-BMI2-NEXT: shrxl %ecx, %eax, %eax
+; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits16_ic1_indexzext:
; X64-NOBMI2: # %bb.0:
+; X64-NOBMI2-NEXT: movzwl %di, %eax
; X64-NOBMI2-NEXT: movb $16, %cl
; X64-NOBMI2-NEXT: subb %sil, %cl
-; X64-NOBMI2-NEXT: movl $-1, %eax
+; X64-NOBMI2-NEXT: shrl %cl, %eax
; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andl %edi, %eax
; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits16_ic1_indexzext:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movb $16, %al
-; X64-BMI2-NEXT: subb %sil, %al
-; X64-BMI2-NEXT: movl $-1, %ecx
-; X64-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X64-BMI2-NEXT: andl %edi, %eax
+; X64-BMI2-NEXT: movzwl %di, %eax
+; X64-BMI2-NEXT: movb $16, %cl
+; X64-BMI2-NEXT: subb %sil, %cl
+; X64-BMI2-NEXT: shrxl %ecx, %eax, %eax
+; X64-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-BMI2-NEXT: retq
%numhighbits = sub i8 16, %numlowbits
define i16 @clear_lowbits16_ic2_load(i16* %w, i16 %numlowbits) nounwind {
; X86-NOBMI2-LABEL: clear_lowbits16_ic2_load:
; X86-NOBMI2: # %bb.0:
-; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: movzwl (%eax), %eax
; X86-NOBMI2-NEXT: movw $16, %cx
; X86-NOBMI2-NEXT: subw {{[0-9]+}}(%esp), %cx
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: # kill: def $cl killed $cl killed $cx
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andw (%edx), %ax
; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits16_ic2_load:
; X86-BMI2: # %bb.0:
-; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
-; X86-BMI2-NEXT: movw $16, %ax
-; X86-BMI2-NEXT: subw {{[0-9]+}}(%esp), %ax
-; X86-BMI2-NEXT: movl $-1, %edx
-; X86-BMI2-NEXT: shlxl %eax, %edx, %eax
-; X86-BMI2-NEXT: andw (%ecx), %ax
+; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-BMI2-NEXT: movzwl (%eax), %eax
+; X86-BMI2-NEXT: movw $16, %cx
+; X86-BMI2-NEXT: subw {{[0-9]+}}(%esp), %cx
+; X86-BMI2-NEXT: shrxl %ecx, %eax, %eax
+; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits16_ic2_load:
; X64-NOBMI2: # %bb.0:
+; X64-NOBMI2-NEXT: movzwl (%rdi), %eax
; X64-NOBMI2-NEXT: movl $16, %ecx
; X64-NOBMI2-NEXT: subl %esi, %ecx
-; X64-NOBMI2-NEXT: movl $-1, %eax
+; X64-NOBMI2-NEXT: shrl %cl, %eax
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andw (%rdi), %ax
; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits16_ic2_load:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $16, %eax
-; X64-BMI2-NEXT: subl %esi, %eax
-; X64-BMI2-NEXT: movl $-1, %ecx
-; X64-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X64-BMI2-NEXT: andw (%rdi), %ax
+; X64-BMI2-NEXT: movzwl (%rdi), %eax
+; X64-BMI2-NEXT: movl $16, %ecx
+; X64-BMI2-NEXT: subl %esi, %ecx
+; X64-BMI2-NEXT: shrxl %ecx, %eax, %eax
+; X64-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-BMI2-NEXT: retq
%val = load i16, i16* %w
define i16 @clear_lowbits16_ic3_load_indexzext(i16* %w, i8 %numlowbits) nounwind {
; X86-NOBMI2-LABEL: clear_lowbits16_ic3_load_indexzext:
; X86-NOBMI2: # %bb.0:
-; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: movzwl (%eax), %eax
; X86-NOBMI2-NEXT: movb $16, %cl
; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andw (%edx), %ax
; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits16_ic3_load_indexzext:
; X86-BMI2: # %bb.0:
-; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
-; X86-BMI2-NEXT: movb $16, %al
-; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $-1, %edx
-; X86-BMI2-NEXT: shlxl %eax, %edx, %eax
-; X86-BMI2-NEXT: andw (%ecx), %ax
+; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-BMI2-NEXT: movzwl (%eax), %eax
+; X86-BMI2-NEXT: movb $16, %cl
+; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
+; X86-BMI2-NEXT: shrxl %ecx, %eax, %eax
+; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits16_ic3_load_indexzext:
; X64-NOBMI2: # %bb.0:
+; X64-NOBMI2-NEXT: movzwl (%rdi), %eax
; X64-NOBMI2-NEXT: movb $16, %cl
; X64-NOBMI2-NEXT: subb %sil, %cl
-; X64-NOBMI2-NEXT: movl $-1, %eax
+; X64-NOBMI2-NEXT: shrl %cl, %eax
; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andw (%rdi), %ax
; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits16_ic3_load_indexzext:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movb $16, %al
-; X64-BMI2-NEXT: subb %sil, %al
-; X64-BMI2-NEXT: movl $-1, %ecx
-; X64-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X64-BMI2-NEXT: andw (%rdi), %ax
+; X64-BMI2-NEXT: movzwl (%rdi), %eax
+; X64-BMI2-NEXT: movb $16, %cl
+; X64-BMI2-NEXT: subb %sil, %cl
+; X64-BMI2-NEXT: shrxl %ecx, %eax, %eax
+; X64-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-BMI2-NEXT: retq
%val = load i16, i16* %w
define i16 @clear_lowbits16_ic4_commutative(i16 %val, i16 %numlowbits) nounwind {
; X86-NOBMI2-LABEL: clear_lowbits16_ic4_commutative:
; X86-NOBMI2: # %bb.0:
+; X86-NOBMI2-NEXT: movzwl {{[0-9]+}}(%esp), %eax
; X86-NOBMI2-NEXT: movw $16, %cx
; X86-NOBMI2-NEXT: subw {{[0-9]+}}(%esp), %cx
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: # kill: def $cl killed $cl killed $cx
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andw {{[0-9]+}}(%esp), %ax
; X86-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits16_ic4_commutative:
; X86-BMI2: # %bb.0:
-; X86-BMI2-NEXT: movw $16, %ax
-; X86-BMI2-NEXT: subw {{[0-9]+}}(%esp), %ax
-; X86-BMI2-NEXT: movl $-1, %ecx
-; X86-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X86-BMI2-NEXT: andw {{[0-9]+}}(%esp), %ax
+; X86-BMI2-NEXT: movzwl {{[0-9]+}}(%esp), %eax
+; X86-BMI2-NEXT: movw $16, %cx
+; X86-BMI2-NEXT: subw {{[0-9]+}}(%esp), %cx
+; X86-BMI2-NEXT: shrxl %ecx, %eax, %eax
+; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits16_ic4_commutative:
; X64-NOBMI2: # %bb.0:
+; X64-NOBMI2-NEXT: movzwl %di, %eax
; X64-NOBMI2-NEXT: movl $16, %ecx
; X64-NOBMI2-NEXT: subl %esi, %ecx
-; X64-NOBMI2-NEXT: movl $-1, %eax
+; X64-NOBMI2-NEXT: shrl %cl, %eax
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andl %edi, %eax
; X64-NOBMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits16_ic4_commutative:
; X64-BMI2: # %bb.0:
-; X64-BMI2-NEXT: movl $16, %eax
-; X64-BMI2-NEXT: subl %esi, %eax
-; X64-BMI2-NEXT: movl $-1, %ecx
-; X64-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X64-BMI2-NEXT: andl %edi, %eax
+; X64-BMI2-NEXT: movzwl %di, %eax
+; X64-BMI2-NEXT: movl $16, %ecx
+; X64-BMI2-NEXT: subl %esi, %ecx
+; X64-BMI2-NEXT: shrxl %ecx, %eax, %eax
+; X64-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X64-BMI2-NEXT: # kill: def $ax killed $ax killed $eax
; X64-BMI2-NEXT: retq
%numhighbits = sub i16 16, %numlowbits
define i32 @clear_lowbits32_ic0(i32 %val, i32 %numlowbits) nounwind {
; X86-NOBMI2-LABEL: clear_lowbits32_ic0:
; X86-NOBMI2: # %bb.0:
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI2-NEXT: movl $32, %ecx
; X86-NOBMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits32_ic0:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movl $32, %eax
; X86-BMI2-NEXT: subl {{[0-9]+}}(%esp), %eax
-; X86-BMI2-NEXT: movl $-1, %ecx
+; X86-BMI2-NEXT: shrxl %eax, {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits32_ic0:
; X64-NOBMI2: # %bb.0:
; X64-NOBMI2-NEXT: movl $32, %ecx
; X64-NOBMI2-NEXT: subl %esi, %ecx
-; X64-NOBMI2-NEXT: movl $-1, %eax
+; X64-NOBMI2-NEXT: shrl %cl, %edi
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
-; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andl %edi, %eax
+; X64-NOBMI2-NEXT: shll %cl, %edi
+; X64-NOBMI2-NEXT: movl %edi, %eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits32_ic0:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: movl $32, %eax
; X64-BMI2-NEXT: subl %esi, %eax
-; X64-BMI2-NEXT: movl $-1, %ecx
+; X64-BMI2-NEXT: shrxl %eax, %edi, %ecx
; X64-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X64-BMI2-NEXT: andl %edi, %eax
; X64-BMI2-NEXT: retq
%numhighbits = sub i32 32, %numlowbits
%mask = shl i32 -1, %numhighbits
define i32 @clear_lowbits32_ic1_indexzext(i32 %val, i8 %numlowbits) nounwind {
; X86-NOBMI2-LABEL: clear_lowbits32_ic1_indexzext:
; X86-NOBMI2: # %bb.0:
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI2-NEXT: movb $32, %cl
; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits32_ic1_indexzext:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movb $32, %al
; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $-1, %ecx
+; X86-BMI2-NEXT: shrxl %eax, {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits32_ic1_indexzext:
; X64-NOBMI2: # %bb.0:
; X64-NOBMI2-NEXT: movb $32, %cl
; X64-NOBMI2-NEXT: subb %sil, %cl
-; X64-NOBMI2-NEXT: movl $-1, %eax
-; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andl %edi, %eax
+; X64-NOBMI2-NEXT: shrl %cl, %edi
+; X64-NOBMI2-NEXT: shll %cl, %edi
+; X64-NOBMI2-NEXT: movl %edi, %eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits32_ic1_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: movb $32, %al
; X64-BMI2-NEXT: subb %sil, %al
-; X64-BMI2-NEXT: movl $-1, %ecx
+; X64-BMI2-NEXT: shrxl %eax, %edi, %ecx
; X64-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X64-BMI2-NEXT: andl %edi, %eax
; X64-BMI2-NEXT: retq
%numhighbits = sub i8 32, %numlowbits
%sh_prom = zext i8 %numhighbits to i32
define i32 @clear_lowbits32_ic2_load(i32* %w, i32 %numlowbits) nounwind {
; X86-NOBMI2-LABEL: clear_lowbits32_ic2_load:
; X86-NOBMI2: # %bb.0:
-; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: movl (%eax), %eax
; X86-NOBMI2-NEXT: movl $32, %ecx
; X86-NOBMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andl (%edx), %eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits32_ic2_load:
; X86-BMI2: # %bb.0:
-; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
-; X86-BMI2-NEXT: movl $32, %eax
-; X86-BMI2-NEXT: subl {{[0-9]+}}(%esp), %eax
-; X86-BMI2-NEXT: movl $-1, %edx
-; X86-BMI2-NEXT: shlxl %eax, %edx, %eax
-; X86-BMI2-NEXT: andl (%ecx), %eax
+; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-BMI2-NEXT: movl $32, %ecx
+; X86-BMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI2-NEXT: shrxl %ecx, (%eax), %eax
+; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits32_ic2_load:
; X64-NOBMI2: # %bb.0:
+; X64-NOBMI2-NEXT: movl (%rdi), %eax
; X64-NOBMI2-NEXT: movl $32, %ecx
; X64-NOBMI2-NEXT: subl %esi, %ecx
-; X64-NOBMI2-NEXT: movl $-1, %eax
+; X64-NOBMI2-NEXT: shrl %cl, %eax
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andl (%rdi), %eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits32_ic2_load:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: movl $32, %eax
; X64-BMI2-NEXT: subl %esi, %eax
-; X64-BMI2-NEXT: movl $-1, %ecx
+; X64-BMI2-NEXT: shrxl %eax, (%rdi), %ecx
; X64-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X64-BMI2-NEXT: andl (%rdi), %eax
; X64-BMI2-NEXT: retq
%val = load i32, i32* %w
%numhighbits = sub i32 32, %numlowbits
define i32 @clear_lowbits32_ic3_load_indexzext(i32* %w, i8 %numlowbits) nounwind {
; X86-NOBMI2-LABEL: clear_lowbits32_ic3_load_indexzext:
; X86-NOBMI2: # %bb.0:
-; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %edx
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI2-NEXT: movl (%eax), %eax
; X86-NOBMI2-NEXT: movb $32, %cl
; X86-NOBMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andl (%edx), %eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits32_ic3_load_indexzext:
; X86-BMI2: # %bb.0:
-; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %ecx
-; X86-BMI2-NEXT: movb $32, %al
-; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %al
-; X86-BMI2-NEXT: movl $-1, %edx
-; X86-BMI2-NEXT: shlxl %eax, %edx, %eax
-; X86-BMI2-NEXT: andl (%ecx), %eax
+; X86-BMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-BMI2-NEXT: movb $32, %cl
+; X86-BMI2-NEXT: subb {{[0-9]+}}(%esp), %cl
+; X86-BMI2-NEXT: shrxl %ecx, (%eax), %eax
+; X86-BMI2-NEXT: shlxl %ecx, %eax, %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits32_ic3_load_indexzext:
; X64-NOBMI2: # %bb.0:
+; X64-NOBMI2-NEXT: movl (%rdi), %eax
; X64-NOBMI2-NEXT: movb $32, %cl
; X64-NOBMI2-NEXT: subb %sil, %cl
-; X64-NOBMI2-NEXT: movl $-1, %eax
+; X64-NOBMI2-NEXT: shrl %cl, %eax
; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andl (%rdi), %eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits32_ic3_load_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: movb $32, %al
; X64-BMI2-NEXT: subb %sil, %al
-; X64-BMI2-NEXT: movl $-1, %ecx
+; X64-BMI2-NEXT: shrxl %eax, (%rdi), %ecx
; X64-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X64-BMI2-NEXT: andl (%rdi), %eax
; X64-BMI2-NEXT: retq
%val = load i32, i32* %w
%numhighbits = sub i8 32, %numlowbits
define i32 @clear_lowbits32_ic4_commutative(i32 %val, i32 %numlowbits) nounwind {
; X86-NOBMI2-LABEL: clear_lowbits32_ic4_commutative:
; X86-NOBMI2: # %bb.0:
+; X86-NOBMI2-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NOBMI2-NEXT: movl $32, %ecx
; X86-NOBMI2-NEXT: subl {{[0-9]+}}(%esp), %ecx
-; X86-NOBMI2-NEXT: movl $-1, %eax
+; X86-NOBMI2-NEXT: shrl %cl, %eax
; X86-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X86-NOBMI2-NEXT: shll %cl, %eax
-; X86-NOBMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-NOBMI2-NEXT: retl
;
; X86-BMI2-LABEL: clear_lowbits32_ic4_commutative:
; X86-BMI2: # %bb.0:
; X86-BMI2-NEXT: movl $32, %eax
; X86-BMI2-NEXT: subl {{[0-9]+}}(%esp), %eax
-; X86-BMI2-NEXT: movl $-1, %ecx
+; X86-BMI2-NEXT: shrxl %eax, {{[0-9]+}}(%esp), %ecx
; X86-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X86-BMI2-NEXT: andl {{[0-9]+}}(%esp), %eax
; X86-BMI2-NEXT: retl
;
; X64-NOBMI2-LABEL: clear_lowbits32_ic4_commutative:
; X64-NOBMI2: # %bb.0:
; X64-NOBMI2-NEXT: movl $32, %ecx
; X64-NOBMI2-NEXT: subl %esi, %ecx
-; X64-NOBMI2-NEXT: movl $-1, %eax
+; X64-NOBMI2-NEXT: shrl %cl, %edi
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
-; X64-NOBMI2-NEXT: shll %cl, %eax
-; X64-NOBMI2-NEXT: andl %edi, %eax
+; X64-NOBMI2-NEXT: shll %cl, %edi
+; X64-NOBMI2-NEXT: movl %edi, %eax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits32_ic4_commutative:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: movl $32, %eax
; X64-BMI2-NEXT: subl %esi, %eax
-; X64-BMI2-NEXT: movl $-1, %ecx
+; X64-BMI2-NEXT: shrxl %eax, %edi, %ecx
; X64-BMI2-NEXT: shlxl %eax, %ecx, %eax
-; X64-BMI2-NEXT: andl %edi, %eax
; X64-BMI2-NEXT: retq
%numhighbits = sub i32 32, %numlowbits
%mask = shl i32 -1, %numhighbits
; X64-NOBMI2: # %bb.0:
; X64-NOBMI2-NEXT: movl $64, %ecx
; X64-NOBMI2-NEXT: subl %esi, %ecx
-; X64-NOBMI2-NEXT: movq $-1, %rax
+; X64-NOBMI2-NEXT: shrq %cl, %rdi
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
-; X64-NOBMI2-NEXT: shlq %cl, %rax
-; X64-NOBMI2-NEXT: andq %rdi, %rax
+; X64-NOBMI2-NEXT: shlq %cl, %rdi
+; X64-NOBMI2-NEXT: movq %rdi, %rax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits64_ic0:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: movl $64, %eax
; X64-BMI2-NEXT: subl %esi, %eax
-; X64-BMI2-NEXT: movq $-1, %rcx
+; X64-BMI2-NEXT: shrxq %rax, %rdi, %rcx
; X64-BMI2-NEXT: shlxq %rax, %rcx, %rax
-; X64-BMI2-NEXT: andq %rdi, %rax
; X64-BMI2-NEXT: retq
%numhighbits = sub i64 64, %numlowbits
%mask = shl i64 -1, %numhighbits
; X64-NOBMI2: # %bb.0:
; X64-NOBMI2-NEXT: movb $64, %cl
; X64-NOBMI2-NEXT: subb %sil, %cl
-; X64-NOBMI2-NEXT: movq $-1, %rax
-; X64-NOBMI2-NEXT: shlq %cl, %rax
-; X64-NOBMI2-NEXT: andq %rdi, %rax
+; X64-NOBMI2-NEXT: shrq %cl, %rdi
+; X64-NOBMI2-NEXT: shlq %cl, %rdi
+; X64-NOBMI2-NEXT: movq %rdi, %rax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits64_ic1_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: movb $64, %al
; X64-BMI2-NEXT: subb %sil, %al
-; X64-BMI2-NEXT: movq $-1, %rcx
+; X64-BMI2-NEXT: shrxq %rax, %rdi, %rcx
; X64-BMI2-NEXT: shlxq %rax, %rcx, %rax
-; X64-BMI2-NEXT: andq %rdi, %rax
; X64-BMI2-NEXT: retq
%numhighbits = sub i8 64, %numlowbits
%sh_prom = zext i8 %numhighbits to i64
;
; X64-NOBMI2-LABEL: clear_lowbits64_ic2_load:
; X64-NOBMI2: # %bb.0:
+; X64-NOBMI2-NEXT: movq (%rdi), %rax
; X64-NOBMI2-NEXT: movl $64, %ecx
; X64-NOBMI2-NEXT: subl %esi, %ecx
-; X64-NOBMI2-NEXT: movq $-1, %rax
+; X64-NOBMI2-NEXT: shrq %cl, %rax
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
; X64-NOBMI2-NEXT: shlq %cl, %rax
-; X64-NOBMI2-NEXT: andq (%rdi), %rax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits64_ic2_load:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: movl $64, %eax
; X64-BMI2-NEXT: subl %esi, %eax
-; X64-BMI2-NEXT: movq $-1, %rcx
+; X64-BMI2-NEXT: shrxq %rax, (%rdi), %rcx
; X64-BMI2-NEXT: shlxq %rax, %rcx, %rax
-; X64-BMI2-NEXT: andq (%rdi), %rax
; X64-BMI2-NEXT: retq
%val = load i64, i64* %w
%numhighbits = sub i64 64, %numlowbits
;
; X64-NOBMI2-LABEL: clear_lowbits64_ic3_load_indexzext:
; X64-NOBMI2: # %bb.0:
+; X64-NOBMI2-NEXT: movq (%rdi), %rax
; X64-NOBMI2-NEXT: movb $64, %cl
; X64-NOBMI2-NEXT: subb %sil, %cl
-; X64-NOBMI2-NEXT: movq $-1, %rax
+; X64-NOBMI2-NEXT: shrq %cl, %rax
; X64-NOBMI2-NEXT: shlq %cl, %rax
-; X64-NOBMI2-NEXT: andq (%rdi), %rax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits64_ic3_load_indexzext:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: movb $64, %al
; X64-BMI2-NEXT: subb %sil, %al
-; X64-BMI2-NEXT: movq $-1, %rcx
+; X64-BMI2-NEXT: shrxq %rax, (%rdi), %rcx
; X64-BMI2-NEXT: shlxq %rax, %rcx, %rax
-; X64-BMI2-NEXT: andq (%rdi), %rax
; X64-BMI2-NEXT: retq
%val = load i64, i64* %w
%numhighbits = sub i8 64, %numlowbits
; X64-NOBMI2: # %bb.0:
; X64-NOBMI2-NEXT: movl $64, %ecx
; X64-NOBMI2-NEXT: subl %esi, %ecx
-; X64-NOBMI2-NEXT: movq $-1, %rax
+; X64-NOBMI2-NEXT: shrq %cl, %rdi
; X64-NOBMI2-NEXT: # kill: def $cl killed $cl killed $ecx
-; X64-NOBMI2-NEXT: shlq %cl, %rax
-; X64-NOBMI2-NEXT: andq %rdi, %rax
+; X64-NOBMI2-NEXT: shlq %cl, %rdi
+; X64-NOBMI2-NEXT: movq %rdi, %rax
; X64-NOBMI2-NEXT: retq
;
; X64-BMI2-LABEL: clear_lowbits64_ic4_commutative:
; X64-BMI2: # %bb.0:
; X64-BMI2-NEXT: movl $64, %eax
; X64-BMI2-NEXT: subl %esi, %eax
-; X64-BMI2-NEXT: movq $-1, %rcx
+; X64-BMI2-NEXT: shrxq %rax, %rdi, %rcx
; X64-BMI2-NEXT: shlxq %rax, %rcx, %rax
-; X64-BMI2-NEXT: andq %rdi, %rax
; X64-BMI2-NEXT: retq
%numhighbits = sub i64 64, %numlowbits
%mask = shl i64 -1, %numhighbits