+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --no_x86_scrub_sp --version 2
; RUN: llc -mtriple=i686-unknown-unknown < %s | FileCheck %s
; RUN: llc -mtriple=i686-unknown-unknown -O0 < %s | FileCheck %s -check-prefix=CHECK0
; Spills eax, putting original esp at +4.
; No stack adjustment if declared with no error code
-define x86_intrcc void @test_isr_no_ecode(ptr byval(%struct.interrupt_frame) %frame) {
- ; CHECK-LABEL: test_isr_no_ecode:
- ; CHECK: pushl %eax
- ; CHECK: movl 12(%esp), %eax
- ; CHECK: popl %eax
- ; CHECK: iretl
- ; CHECK0-LABEL: test_isr_no_ecode:
- ; CHECK0: pushl %eax
- ; CHECK0: leal 4(%esp), %eax
- ; CHECK0: movl 8(%eax), %eax
- ; CHECK0: popl %eax
- ; CHECK0: iretl
+define x86_intrcc void @test_isr_no_ecode(ptr byval(%struct.interrupt_frame) %frame) nounwind {
+; CHECK-LABEL: test_isr_no_ecode:
+; CHECK: # %bb.0:
+; CHECK-NEXT: pushl %eax
+; CHECK-NEXT: cld
+; CHECK-NEXT: movl 12(%esp), %eax
+; CHECK-NEXT: #APP
+; CHECK-NEXT: #NO_APP
+; CHECK-NEXT: popl %eax
+; CHECK-NEXT: iretl
+;
+; CHECK0-LABEL: test_isr_no_ecode:
+; CHECK0: # %bb.0:
+; CHECK0-NEXT: pushl %eax
+; CHECK0-NEXT: cld
+; CHECK0-NEXT: leal 4(%esp), %eax
+; CHECK0-NEXT: movl 8(%eax), %eax
+; CHECK0-NEXT: #APP
+; CHECK0-NEXT: #NO_APP
+; CHECK0-NEXT: popl %eax
+; CHECK0-NEXT: iretl
%pflags = getelementptr inbounds %struct.interrupt_frame, ptr %frame, i32 0, i32 2
%flags = load i32, ptr %pflags, align 4
call void asm sideeffect "", "r"(i32 %flags)
; Spills eax and ecx, putting original esp at +8. Stack is adjusted up another 4 bytes
; before return, popping the error code.
-define x86_intrcc void @test_isr_ecode(ptr byval(%struct.interrupt_frame) %frame, i32 %ecode) {
- ; CHECK-LABEL: test_isr_ecode
- ; CHECK: pushl %ecx
- ; CHECK: pushl %eax
- ; CHECK: movl 8(%esp), %eax
- ; CHECK: movl 20(%esp), %ecx
- ; CHECK: popl %eax
- ; CHECK: popl %ecx
- ; CHECK: addl $4, %esp
- ; CHECK: iretl
- ; CHECK0-LABEL: test_isr_ecode
- ; CHECK0: pushl %ecx
- ; CHECK0: pushl %eax
- ; CHECK0: movl 8(%esp), %ecx
- ; CHECK0: leal 12(%esp), %eax
- ; CHECK0: movl 8(%eax), %eax
- ; CHECK0: popl %eax
- ; CHECK0: popl %ecx
- ; CHECK0: addl $4, %esp
- ; CHECK0: iretl
+define x86_intrcc void @test_isr_ecode(ptr byval(%struct.interrupt_frame) %frame, i32 %ecode) nounwind {
+; CHECK-LABEL: test_isr_ecode:
+; CHECK: # %bb.0:
+; CHECK-NEXT: pushl %ecx
+; CHECK-NEXT: pushl %eax
+; CHECK-NEXT: cld
+; CHECK-NEXT: movl 8(%esp), %eax
+; CHECK-NEXT: movl 20(%esp), %ecx
+; CHECK-NEXT: #APP
+; CHECK-NEXT: #NO_APP
+; CHECK-NEXT: popl %eax
+; CHECK-NEXT: popl %ecx
+; CHECK-NEXT: addl $4, %esp
+; CHECK-NEXT: iretl
+;
+; CHECK0-LABEL: test_isr_ecode:
+; CHECK0: # %bb.0:
+; CHECK0-NEXT: pushl %ecx
+; CHECK0-NEXT: pushl %eax
+; CHECK0-NEXT: cld
+; CHECK0-NEXT: movl 8(%esp), %ecx
+; CHECK0-NEXT: leal 12(%esp), %eax
+; CHECK0-NEXT: movl 8(%eax), %eax
+; CHECK0-NEXT: #APP
+; CHECK0-NEXT: #NO_APP
+; CHECK0-NEXT: popl %eax
+; CHECK0-NEXT: popl %ecx
+; CHECK0-NEXT: addl $4, %esp
+; CHECK0-NEXT: iretl
%pflags = getelementptr inbounds %struct.interrupt_frame, ptr %frame, i32 0, i32 2
%flags = load i32, ptr %pflags, align 4
call x86_fastcallcc void asm sideeffect "", "r,r"(i32 %flags, i32 %ecode)
}
; All clobbered registers must be saved
-define x86_intrcc void @test_isr_clobbers(ptr byval(%struct.interrupt_frame) %frame, i32 %ecode) {
+define x86_intrcc void @test_isr_clobbers(ptr byval(%struct.interrupt_frame) %frame, i32 %ecode) nounwind {
+; CHECK-LABEL: test_isr_clobbers:
+; CHECK: # %bb.0:
+; CHECK-NEXT: pushl %ebp
+; CHECK-NEXT: pushl %ebx
+; CHECK-NEXT: pushl %eax
+; CHECK-NEXT: cld
+; CHECK-NEXT: #APP
+; CHECK-NEXT: #NO_APP
+; CHECK-NEXT: popl %eax
+; CHECK-NEXT: popl %ebx
+; CHECK-NEXT: popl %ebp
+; CHECK-NEXT: addl $4, %esp
+; CHECK-NEXT: iretl
+;
+; CHECK0-LABEL: test_isr_clobbers:
+; CHECK0: # %bb.0:
+; CHECK0-NEXT: pushl %ebp
+; CHECK0-NEXT: pushl %ebx
+; CHECK0-NEXT: pushl %eax
+; CHECK0-NEXT: cld
+; CHECK0-NEXT: #APP
+; CHECK0-NEXT: #NO_APP
+; CHECK0-NEXT: popl %eax
+; CHECK0-NEXT: popl %ebx
+; CHECK0-NEXT: popl %ebp
+; CHECK0-NEXT: addl $4, %esp
+; CHECK0-NEXT: iretl
call void asm sideeffect "", "~{eax},~{ebx},~{ebp}"()
- ; CHECK-LABEL: test_isr_clobbers
- ; CHECK: pushl %ebp
- ; CHECK: pushl %ebx
- ; CHECK: pushl %eax
- ; CHECK: popl %eax
- ; CHECK: popl %ebx
- ; CHECK: popl %ebp
- ; CHECK: addl $4, %esp
- ; CHECK: iretl
- ; CHECK0-LABEL: test_isr_clobbers
- ; CHECK0: pushl %ebp
- ; CHECK0: pushl %ebx
- ; CHECK0: pushl %eax
- ; CHECK0: popl %eax
- ; CHECK0: popl %ebx
- ; CHECK0: popl %ebp
- ; CHECK0: addl $4, %esp
- ; CHECK0: iretl
ret void
}
@f80 = common global x86_fp80 0xK00000000000000000000, align 4
; Test that the presence of x87 does not crash the FP stackifier
-define x86_intrcc void @test_isr_x87(ptr byval(%struct.interrupt_frame) %frame) {
- ; CHECK-LABEL: test_isr_x87
- ; CHECK-DAG: fldt f80
- ; CHECK-DAG: fld1
- ; CHECK: faddp
- ; CHECK-NEXT: fstpt f80
- ; CHECK-NEXT: iretl
+define x86_intrcc void @test_isr_x87(ptr byval(%struct.interrupt_frame) %frame) nounwind {
+; CHECK-LABEL: test_isr_x87:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: cld
+; CHECK-NEXT: fldt f80
+; CHECK-NEXT: fld1
+; CHECK-NEXT: faddp %st, %st(1)
+; CHECK-NEXT: fstpt f80
+; CHECK-NEXT: iretl
+;
+; CHECK0-LABEL: test_isr_x87:
+; CHECK0: # %bb.0: # %entry
+; CHECK0-NEXT: cld
+; CHECK0-NEXT: fldt f80
+; CHECK0-NEXT: fld1
+; CHECK0-NEXT: faddp %st, %st(1)
+; CHECK0-NEXT: fstpt f80
+; CHECK0-NEXT: iretl
entry:
%ld = load x86_fp80, ptr @f80, align 4
%add = fadd x86_fp80 %ld, 0xK3FFF8000000000000000
; Use a frame pointer to check the offsets. No return address, arguments start
; at EBP+4.
define dso_local x86_intrcc void @test_fp_1(ptr byval(%struct.interrupt_frame) %p) #0 {
- ; CHECK-LABEL: test_fp_1:
- ; CHECK: # %bb.0: # %entry
- ; CHECK-NEXT: pushl %ebp
- ; CHECK-NEXT: movl %esp, %ebp
- ; CHECK: cld
- ; CHECK-DAG: leal 4(%ebp), %[[R1:[^ ]*]]
- ; CHECK-DAG: leal 20(%ebp), %[[R2:[^ ]*]]
- ; CHECK: movl %[[R1]], sink_address
- ; CHECK: movl %[[R2]], sink_address
- ; CHECK: popl %ebp
- ; CHECK: iretl
+; CHECK-LABEL: test_fp_1:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: pushl %ebp
+; CHECK-NEXT: movl %esp, %ebp
+; CHECK-NEXT: pushl %ecx
+; CHECK-NEXT: pushl %eax
+; CHECK-NEXT: cld
+; CHECK-NEXT: leal 20(%ebp), %eax
+; CHECK-NEXT: leal 4(%ebp), %ecx
+; CHECK-NEXT: movl %ecx, sink_address
+; CHECK-NEXT: movl %eax, sink_address
+; CHECK-NEXT: popl %eax
+; CHECK-NEXT: popl %ecx
+; CHECK-NEXT: popl %ebp
+; CHECK-NEXT: iretl
+;
+; CHECK0-LABEL: test_fp_1:
+; CHECK0: # %bb.0: # %entry
+; CHECK0-NEXT: pushl %ebp
+; CHECK0-NEXT: movl %esp, %ebp
+; CHECK0-NEXT: pushl %ecx
+; CHECK0-NEXT: pushl %eax
+; CHECK0-NEXT: cld
+; CHECK0-NEXT: leal 4(%ebp), %ecx
+; CHECK0-NEXT: movl %ecx, %eax
+; CHECK0-NEXT: addl $16, %eax
+; CHECK0-NEXT: movl %ecx, sink_address
+; CHECK0-NEXT: movl %eax, sink_address
+; CHECK0-NEXT: popl %eax
+; CHECK0-NEXT: popl %ecx
+; CHECK0-NEXT: popl %ebp
+; CHECK0-NEXT: iretl
entry:
%arrayidx2 = getelementptr inbounds %struct.interrupt_frame, ptr %p, i32 0, i32 4
store volatile ptr %p, ptr @sink_address
; The error code is between EBP and the interrupt_frame.
define dso_local x86_intrcc void @test_fp_2(ptr byval(%struct.interrupt_frame) %p, i32 %err) #0 {
- ; CHECK-LABEL: test_fp_2:
- ; CHECK: # %bb.0: # %entry
- ; CHECK-NEXT: pushl %ebp
- ; CHECK-NEXT: movl %esp, %ebp
- ; CHECK: cld
- ; CHECK-DAG: movl 4(%ebp), %[[R3:[^ ]*]]
- ; CHECK-DAG: leal 8(%ebp), %[[R1:[^ ]*]]
- ; CHECK-DAG: leal 24(%ebp), %[[R2:[^ ]*]]
- ; CHECK: movl %[[R1]], sink_address
- ; CHECK: movl %[[R2]], sink_address
- ; CHECK: movl %[[R3]], sink_i32
- ; CHECK: popl %ebp
- ; CHECK: iretl
+; CHECK-LABEL: test_fp_2:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: pushl %ebp
+; CHECK-NEXT: movl %esp, %ebp
+; CHECK-NEXT: pushl %edx
+; CHECK-NEXT: pushl %ecx
+; CHECK-NEXT: pushl %eax
+; CHECK-NEXT: cld
+; CHECK-NEXT: movl 4(%ebp), %eax
+; CHECK-NEXT: leal 24(%ebp), %ecx
+; CHECK-NEXT: leal 8(%ebp), %edx
+; CHECK-NEXT: movl %edx, sink_address
+; CHECK-NEXT: movl %ecx, sink_address
+; CHECK-NEXT: movl %eax, sink_i32
+; CHECK-NEXT: popl %eax
+; CHECK-NEXT: popl %ecx
+; CHECK-NEXT: popl %edx
+; CHECK-NEXT: popl %ebp
+; CHECK-NEXT: addl $4, %esp
+; CHECK-NEXT: iretl
+;
+; CHECK0-LABEL: test_fp_2:
+; CHECK0: # %bb.0: # %entry
+; CHECK0-NEXT: pushl %ebp
+; CHECK0-NEXT: movl %esp, %ebp
+; CHECK0-NEXT: pushl %edx
+; CHECK0-NEXT: pushl %ecx
+; CHECK0-NEXT: pushl %eax
+; CHECK0-NEXT: cld
+; CHECK0-NEXT: movl 4(%ebp), %eax
+; CHECK0-NEXT: leal 8(%ebp), %edx
+; CHECK0-NEXT: movl %edx, %ecx
+; CHECK0-NEXT: addl $16, %ecx
+; CHECK0-NEXT: movl %edx, sink_address
+; CHECK0-NEXT: movl %ecx, sink_address
+; CHECK0-NEXT: movl %eax, sink_i32
+; CHECK0-NEXT: popl %eax
+; CHECK0-NEXT: popl %ecx
+; CHECK0-NEXT: popl %edx
+; CHECK0-NEXT: popl %ebp
+; CHECK0-NEXT: addl $4, %esp
+; CHECK0-NEXT: iretl
entry:
%arrayidx2 = getelementptr inbounds %struct.interrupt_frame, ptr %p, i32 0, i32 4
store volatile ptr %p, ptr @sink_address
; Test argument copy elision when copied to a local alloca.
define x86_intrcc void @test_copy_elide(ptr byval(%struct.interrupt_frame) %frame, i32 %err) #0 {
- ; CHECK-LABEL: test_copy_elide:
- ; CHECK: # %bb.0: # %entry
- ; CHECK-NEXT: pushl %ebp
- ; CHECK-NEXT: movl %esp, %ebp
- ; CHECK: cld
- ; CHECK: leal 4(%ebp), %[[R1:[^ ]*]]
- ; CHECK: movl %[[R1]], sink_address
+; CHECK-LABEL: test_copy_elide:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: pushl %ebp
+; CHECK-NEXT: movl %esp, %ebp
+; CHECK-NEXT: pushl %eax
+; CHECK-NEXT: cld
+; CHECK-NEXT: leal 4(%ebp), %eax
+; CHECK-NEXT: movl %eax, sink_address
+; CHECK-NEXT: popl %eax
+; CHECK-NEXT: popl %ebp
+; CHECK-NEXT: addl $4, %esp
+; CHECK-NEXT: iretl
+;
+; CHECK0-LABEL: test_copy_elide:
+; CHECK0: # %bb.0: # %entry
+; CHECK0-NEXT: pushl %ebp
+; CHECK0-NEXT: movl %esp, %ebp
+; CHECK0-NEXT: pushl %eax
+; CHECK0-NEXT: cld
+; CHECK0-NEXT: movl 4(%ebp), %eax
+; CHECK0-NEXT: leal 4(%ebp), %eax
+; CHECK0-NEXT: movl %eax, sink_address
+; CHECK0-NEXT: popl %eax
+; CHECK0-NEXT: popl %ebp
+; CHECK0-NEXT: addl $4, %esp
+; CHECK0-NEXT: iretl
entry:
%err.addr = alloca i32, align 4
store i32 %err, ptr %err.addr, align 4