+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; Tests to make sure elimination of casts is working correctly
; RUN: opt < %s -instcombine -S | FileCheck %s
; This shouldn't convert to getelementptr because the relationship
; between the arithmetic and the layout of allocated memory is
; entirely unknown.
-; CHECK-LABEL: @test1(
-; CHECK: ptrtoint
-; CHECK: add
-; CHECK: inttoptr
+
define i8* @test1(i8* %t) {
- %tmpc = ptrtoint i8* %t to i32 ; <i32> [#uses=1]
- %tmpa = add i32 %tmpc, 32 ; <i32> [#uses=1]
- %tv = inttoptr i32 %tmpa to i8* ; <i8*> [#uses=1]
- ret i8* %tv
+; CHECK-LABEL: @test1(
+; CHECK-NEXT: [[TC:%.*]] = ptrtoint i8* [[T:%.*]] to i32
+; CHECK-NEXT: [[TA:%.*]] = add i32 [[TC]], 32
+; CHECK-NEXT: [[TV:%.*]] = inttoptr i32 [[TA]] to i8*
+; CHECK-NEXT: ret i8* [[TV]]
+;
+ %tc = ptrtoint i8* %t to i32
+ %ta = add i32 %tc, 32
+ %tv = inttoptr i32 %ta to i8*
+ ret i8* %tv
}
; These casts should be folded away.
-; CHECK-LABEL: @test2(
-; CHECK: icmp eq i8* %a, %b
+
define i1 @test2(i8* %a, i8* %b) {
- %tmpa = ptrtoint i8* %a to i32 ; <i32> [#uses=1]
- %tmpb = ptrtoint i8* %b to i32 ; <i32> [#uses=1]
- %r = icmp eq i32 %tmpa, %tmpb ; <i1> [#uses=1]
- ret i1 %r
+; CHECK-LABEL: @test2(
+; CHECK-NEXT: [[R:%.*]] = icmp eq i8* [[A:%.*]], [[B:%.*]]
+; CHECK-NEXT: ret i1 [[R]]
+;
+ %ta = ptrtoint i8* %a to i32
+ %tb = ptrtoint i8* %b to i32
+ %r = icmp eq i32 %ta, %tb
+ ret i1 %r
}
; These casts should be folded away.
-; CHECK-LABEL: @test2_as2_same_int(
-; CHECK: icmp eq i8 addrspace(2)* %a, %b
+
define i1 @test2_as2_same_int(i8 addrspace(2)* %a, i8 addrspace(2)* %b) {
- %tmpa = ptrtoint i8 addrspace(2)* %a to i16
- %tmpb = ptrtoint i8 addrspace(2)* %b to i16
- %r = icmp eq i16 %tmpa, %tmpb
+; CHECK-LABEL: @test2_as2_same_int(
+; CHECK-NEXT: [[R:%.*]] = icmp eq i8 addrspace(2)* [[A:%.*]], [[B:%.*]]
+; CHECK-NEXT: ret i1 [[R]]
+;
+ %ta = ptrtoint i8 addrspace(2)* %a to i16
+ %tb = ptrtoint i8 addrspace(2)* %b to i16
+ %r = icmp eq i16 %ta, %tb
ret i1 %r
}
; These casts should be folded away.
-; CHECK-LABEL: @test2_as2_larger(
-; CHECK: icmp eq i8 addrspace(2)* %a, %b
+
define i1 @test2_as2_larger(i8 addrspace(2)* %a, i8 addrspace(2)* %b) {
- %tmpa = ptrtoint i8 addrspace(2)* %a to i32
- %tmpb = ptrtoint i8 addrspace(2)* %b to i32
- %r = icmp eq i32 %tmpa, %tmpb
+; CHECK-LABEL: @test2_as2_larger(
+; CHECK-NEXT: [[R:%.*]] = icmp eq i8 addrspace(2)* [[A:%.*]], [[B:%.*]]
+; CHECK-NEXT: ret i1 [[R]]
+;
+ %ta = ptrtoint i8 addrspace(2)* %a to i32
+ %tb = ptrtoint i8 addrspace(2)* %b to i32
+ %r = icmp eq i32 %ta, %tb
ret i1 %r
}
; These casts should not be folded away.
-; CHECK-LABEL: @test2_diff_as
-; CHECK: icmp sge i32 %i0, %i1
+
define i1 @test2_diff_as(i8* %p, i8 addrspace(1)* %q) {
+; CHECK-LABEL: @test2_diff_as(
+; CHECK-NEXT: [[I0:%.*]] = ptrtoint i8* [[P:%.*]] to i32
+; CHECK-NEXT: [[I1:%.*]] = ptrtoint i8 addrspace(1)* [[Q:%.*]] to i32
+; CHECK-NEXT: [[R0:%.*]] = icmp sge i32 [[I0]], [[I1]]
+; CHECK-NEXT: ret i1 [[R0]]
+;
%i0 = ptrtoint i8* %p to i32
%i1 = ptrtoint i8 addrspace(1)* %q to i32
%r0 = icmp sge i32 %i0, %i1
}
; These casts should not be folded away.
-; CHECK-LABEL: @test2_diff_as_global
-; CHECK: icmp sge i32 %i1
+
define i1 @test2_diff_as_global(i8 addrspace(1)* %q) {
+; CHECK-LABEL: @test2_diff_as_global(
+; CHECK-NEXT: [[I1:%.*]] = ptrtoint i8 addrspace(1)* [[Q:%.*]] to i32
+; CHECK-NEXT: [[R0:%.*]] = icmp sge i32 [[I1]], ptrtoint (i8* @global to i32)
+; CHECK-NEXT: ret i1 [[R0]]
+;
%i0 = ptrtoint i8* @global to i32
%i1 = ptrtoint i8 addrspace(1)* %q to i32
%r0 = icmp sge i32 %i1, %i0
}
; These casts should also be folded away.
-; CHECK-LABEL: @test3(
-; CHECK: icmp eq i8* %a, @global
+
define i1 @test3(i8* %a) {
- %tmpa = ptrtoint i8* %a to i32
- %r = icmp eq i32 %tmpa, ptrtoint (i8* @global to i32)
- ret i1 %r
+; CHECK-LABEL: @test3(
+; CHECK-NEXT: [[R:%.*]] = icmp eq i8* [[A:%.*]], @global
+; CHECK-NEXT: ret i1 [[R]]
+;
+ %ta = ptrtoint i8* %a to i32
+ %r = icmp eq i32 %ta, ptrtoint (i8* @global to i32)
+ ret i1 %r
}
define i1 @test4(i32 %A) {
+; CHECK-LABEL: @test4(
+; CHECK-NEXT: [[C:%.*]] = icmp eq i32 [[A:%.*]], 0
+; CHECK-NEXT: ret i1 [[C]]
+;
%B = inttoptr i32 %A to i8*
%C = icmp eq i8* %B, null
ret i1 %C
-; CHECK-LABEL: @test4(
-; CHECK-NEXT: %C = icmp eq i32 %A, 0
-; CHECK-NEXT: ret i1 %C
}
define i1 @test4_as2(i16 %A) {
; CHECK-LABEL: @test4_as2(
-; CHECK-NEXT: %C = icmp eq i16 %A, 0
-; CHECK-NEXT: ret i1 %C
+; CHECK-NEXT: [[C:%.*]] = icmp eq i16 [[A:%.*]], 0
+; CHECK-NEXT: ret i1 [[C]]
+;
%B = inttoptr i16 %A to i8 addrspace(2)*
%C = icmp eq i8 addrspace(2)* %B, null
ret i1 %C
%op = type { float }
%unop = type { i32 }
-@Array = internal constant [1 x %op* (%op*)*] [ %op* (%op*)* @foo ] ; <[1 x %op* (%op*)*]*> [#uses=1]
+@Array = internal constant [1 x %op* (%op*)*] [ %op* (%op*)* @foo ]
declare %op* @foo(%op* %X)
define %unop* @test5(%op* %O) {
- %tmp = load %unop* (%op*)*, %unop* (%op*)** bitcast ([1 x %op* (%op*)*]* @Array to %unop* (%op*)**); <%unop* (%op*)*> [#uses=1]
- %tmp.2 = call %unop* %tmp( %op* %O ) ; <%unop*> [#uses=1]
- ret %unop* %tmp.2
; CHECK-LABEL: @test5(
-; CHECK: call %op* @foo(%op* %O)
+; CHECK-NEXT: [[T_2:%.*]] = call %op* @foo(%op* [[O:%.*]])
+; CHECK-NEXT: [[TMP1:%.*]] = bitcast %op* [[T_2]] to %unop*
+; CHECK-NEXT: ret %unop* [[TMP1]]
+;
+ %t = load %unop* (%op*)*, %unop* (%op*)** bitcast ([1 x %op* (%op*)*]* @Array to %unop* (%op*)**); <%unop* (%op*)*> [#uses=1]
+ %t.2 = call %unop* %t( %op* %O )
+ ret %unop* %t.2
}
; the address space.
define i8 @test6(i8 addrspace(1)* %source) {
+; CHECK-LABEL: @test6(
+; CHECK-NEXT: entry:
+; CHECK-NEXT: [[ARRAYIDX223:%.*]] = addrspacecast i8 addrspace(1)* [[SOURCE:%.*]] to i8*
+; CHECK-NEXT: [[T4:%.*]] = load i8, i8* [[ARRAYIDX223]], align 1
+; CHECK-NEXT: ret i8 [[T4]]
+;
entry:
%arrayidx223 = addrspacecast i8 addrspace(1)* %source to i8*
- %tmp4 = load i8, i8* %arrayidx223
- ret i8 %tmp4
-; CHECK-LABEL: @test6(
-; CHECK: load i8, i8* %arrayidx223
+ %t4 = load i8, i8* %arrayidx223
+ ret i8 %t4
}