forked from OSchip/llvm-project
102 lines
3.9 KiB
LLVM
102 lines
3.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=sse -enable-unsafe-fp-math < %s | FileCheck %s
|
|
|
|
; The debug info in this test case was causing a crash because machine trace metrics
|
|
; did not correctly ignore debug instructions. The check lines ensure that the
|
|
; machine-combiner pass has run, reassociated the add operands, and therefore
|
|
; used machine trace metrics.
|
|
|
|
define void @PR24199(i32 %a0) {
|
|
; CHECK-LABEL: PR24199:
|
|
; CHECK: # %bb.0: # %entry
|
|
; CHECK-NEXT: pushq %rbx
|
|
; CHECK-NEXT: .cfi_def_cfa_offset 16
|
|
; CHECK-NEXT: subq $16, %rsp
|
|
; CHECK-NEXT: .cfi_def_cfa_offset 32
|
|
; CHECK-NEXT: .cfi_offset %rbx, -16
|
|
; CHECK-NEXT: movl %edi, %ebx
|
|
; CHECK-NEXT: xorl %eax, %eax
|
|
; CHECK-NEXT: testb %al, %al
|
|
; CHECK-NEXT: je .LBB0_2
|
|
; CHECK-NEXT: # %bb.1:
|
|
; CHECK-NEXT: movss {{.*#+}} xmm0 = mem[0],zero,zero,zero
|
|
; CHECK-NEXT: jmp .LBB0_3
|
|
; CHECK-NEXT: .LBB0_2: # %if.then
|
|
; CHECK-NEXT: xorps %xmm0, %xmm0
|
|
; CHECK-NEXT: .LBB0_3: # %if.end
|
|
; CHECK-NEXT: movss %xmm0, {{[-0-9]+}}(%r{{[sb]}}p) # 4-byte Spill
|
|
; CHECK-NEXT: callq foo@PLT
|
|
; CHECK-NEXT: movss {{.*#+}} xmm0 = mem[0],zero,zero,zero
|
|
; CHECK-NEXT: movss {{[-0-9]+}}(%r{{[sb]}}p), %xmm2 # 4-byte Reload
|
|
; CHECK-NEXT: # xmm2 = mem[0],zero,zero,zero
|
|
; CHECK-NEXT: mulss %xmm0, %xmm2
|
|
; CHECK-NEXT: movss {{.*#+}} xmm1 = mem[0],zero,zero,zero
|
|
; CHECK-NEXT: addss %xmm1, %xmm0
|
|
; CHECK-NEXT: addss %xmm2, %xmm0
|
|
; CHECK-NEXT: movss %xmm0, (%rax)
|
|
; CHECK-NEXT: testl %ebx, %ebx
|
|
; CHECK-NEXT: jne .LBB0_5
|
|
; CHECK-NEXT: # %bb.4: # %if.end
|
|
; CHECK-NEXT: xorps %xmm1, %xmm1
|
|
; CHECK-NEXT: .LBB0_5: # %if.end
|
|
; CHECK-NEXT: movss {{.*#+}} xmm0 = mem[0],zero,zero,zero
|
|
; CHECK-NEXT: addss %xmm0, %xmm0
|
|
; CHECK-NEXT: addss %xmm1, %xmm0
|
|
; CHECK-NEXT: callq bar@PLT
|
|
; CHECK-NEXT: addq $16, %rsp
|
|
; CHECK-NEXT: .cfi_def_cfa_offset 16
|
|
; CHECK-NEXT: popq %rbx
|
|
; CHECK-NEXT: .cfi_def_cfa_offset 8
|
|
; CHECK-NEXT: retq
|
|
|
|
entry:
|
|
%i = alloca %struct.A, align 8
|
|
%tobool = icmp ne i32 %a0, 0
|
|
br i1 undef, label %if.end, label %if.then
|
|
|
|
if.then:
|
|
br label %if.end
|
|
|
|
if.end:
|
|
%h = phi float [ 0.0, %if.then ], [ 4.0, %entry ]
|
|
call void @foo(%struct.A* nonnull undef)
|
|
tail call void @llvm.dbg.value(metadata %struct.A* undef, i64 0, metadata !5, metadata !4), !dbg !6
|
|
tail call void @llvm.dbg.value(metadata float %h, i64 0, metadata !5, metadata !4), !dbg !6
|
|
%n0 = load float, float* undef, align 4
|
|
%mul = fmul fast float %n0, %h
|
|
%add = fadd fast float %mul, 1.0
|
|
tail call void @llvm.dbg.value(metadata %struct.A* undef, i64 0, metadata !5, metadata !4), !dbg !6
|
|
tail call void @llvm.dbg.value(metadata float %add, i64 0, metadata !5, metadata !4), !dbg !6
|
|
%add.i = fadd fast float %add, %n0
|
|
store float %add.i, float* undef, align 4
|
|
%n1 = bitcast %struct.A* %i to i8*
|
|
call void @llvm.lifetime.start.p0i8(i64 16, i8* %n1)
|
|
%n2 = load <2 x float>, <2 x float>* undef, align 8
|
|
%conv = uitofp i1 %tobool to float
|
|
%bitcast = extractelement <2 x float> %n2, i32 0
|
|
%factor = fmul fast float %bitcast, 2.0
|
|
%add3 = fadd fast float %factor, %conv
|
|
call void @bar(float %add3)
|
|
ret void
|
|
}
|
|
|
|
%struct.A = type { float, float }
|
|
|
|
declare void @bar(float)
|
|
declare void @foo(%struct.A*)
|
|
declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture)
|
|
declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!2}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
|
|
!1 = !DIFile(filename: "24199.cpp", directory: "/bin")
|
|
!2 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!3 = distinct !DISubprogram(linkageName: "foo", file: !1, line: 18, isLocal: false, isDefinition: true, scopeLine: 18, unit: !0)
|
|
!4 = !DIExpression()
|
|
!5 = !DILocalVariable(name: "this", arg: 1, scope: !3, flags: DIFlagArtificial | DIFlagObjectPointer)
|
|
!6 = !DILocation(line: 0, scope: !3)
|
|
|
|
|