forked from OSchip/llvm-project
97 lines
3.9 KiB
LLVM
97 lines
3.9 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=generic | FileCheck %s
|
|
; Both functions should produce the same code. The presence of debug values
|
|
; should not affect the scheduling strategy.
|
|
; Generated from:
|
|
; char argc;
|
|
; class C {
|
|
; public:
|
|
; int test(char ,char ,char ,...);
|
|
; };
|
|
; void foo() {
|
|
; C c;
|
|
; char lc = argc;
|
|
; c.test(0,argc,0,lc);
|
|
; c.test(0,argc,0,lc);
|
|
; }
|
|
;
|
|
; with
|
|
; clang -O2 -c test.cpp -emit-llvm -S
|
|
; clang -O2 -c test.cpp -emit-llvm -S -g
|
|
;
|
|
|
|
source_filename = "test/CodeGen/X86/misched-code-difference-with-debug.ll"
|
|
|
|
%class.C = type { i8 }
|
|
|
|
@argc = global i8 0, align 1, !dbg !0
|
|
|
|
declare i32 @test_function(%class.C*, i8 signext, i8 signext, i8 signext, ...)
|
|
; CHECK-LABEL: test_without_debug
|
|
; CHECK: movl [[A:%[a-z]+]], [[B:%[a-z]+]]
|
|
; CHECK-NEXT: movl [[A]], [[C:%[a-z]+]]
|
|
|
|
define void @test_without_debug() {
|
|
entry:
|
|
%c = alloca %class.C, align 1
|
|
%0 = load i8, i8* @argc, align 1
|
|
%conv = sext i8 %0 to i32
|
|
%call = call i32 (%class.C*, i8, i8, i8, ...) @test_function(%class.C* %c, i8 signext 0, i8 signext %0, i8 signext 0, i32 %conv)
|
|
%1 = load i8, i8* @argc, align 1
|
|
%call2 = call i32 (%class.C*, i8, i8, i8, ...) @test_function(%class.C* %c, i8 signext 0, i8 signext %1, i8 signext 0, i32 %conv)
|
|
ret void
|
|
}
|
|
; CHECK-LABEL: test_with_debug
|
|
; CHECK: movl [[A]], [[B]]
|
|
; CHECK-NEXT: movl [[A]], [[C]]
|
|
|
|
define void @test_with_debug() !dbg !17 {
|
|
entry:
|
|
%c = alloca %class.C, align 1
|
|
%0 = load i8, i8* @argc, align 1
|
|
tail call void @llvm.dbg.value(metadata i8 %0, i64 0, metadata !22, metadata !23), !dbg !24
|
|
%conv = sext i8 %0 to i32
|
|
tail call void @llvm.dbg.value(metadata %class.C* %c, i64 0, metadata !21, metadata !25), !dbg !24
|
|
%call = call i32 (%class.C*, i8, i8, i8, ...) @test_function(%class.C* %c, i8 signext 0, i8 signext %0, i8 signext 0, i32 %conv)
|
|
%1 = load i8, i8* @argc, align 1
|
|
call void @llvm.dbg.value(metadata %class.C* %c, i64 0, metadata !21, metadata !25), !dbg !24
|
|
%call2 = call i32 (%class.C*, i8, i8, i8, ...) @test_function(%class.C* %c, i8 signext 0, i8 signext %1, i8 signext 0, i32 %conv)
|
|
ret void
|
|
}
|
|
|
|
; Function Attrs: nounwind readnone
|
|
|
|
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #0
|
|
|
|
attributes #0 = { nounwind readnone }
|
|
|
|
!llvm.dbg.cu = !{!4}
|
|
!llvm.module.flags = !{!15, !16}
|
|
|
|
!0 = !DIGlobalVariableExpression(var: !1)
|
|
!1 = !DIGlobalVariable(name: "argc", scope: null, file: !2, line: 1, type: !3, isLocal: false, isDefinition: true)
|
|
!2 = !DIFile(filename: "test.cpp", directory: "")
|
|
!3 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
|
|
!4 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !5, retainedTypes: !6, globals: !14, imports: !5)
|
|
!5 = !{}
|
|
!6 = !{!7}
|
|
!7 = !DICompositeType(tag: DW_TAG_class_type, name: "C", file: !2, line: 2, size: 8, align: 8, elements: !8, identifier: "_ZTS1C")
|
|
!8 = !{!9}
|
|
!9 = !DISubprogram(name: "test", scope: !7, file: !2, type: !10, isLocal: false, isDefinition: false, isOptimized: false)
|
|
!10 = !DISubroutineType(types: !11)
|
|
!11 = !{!12, !13, !3, !3, !3, null}
|
|
!12 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
|
!13 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64, align: 64, flags: DIFlagArtificial)
|
|
!14 = !{!0}
|
|
!15 = !{i32 2, !"Dwarf Version", i32 4}
|
|
!16 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!17 = distinct !DISubprogram(name: "test_with_debug", linkageName: "test_with_debug", scope: !2, file: !2, line: 6, type: !18, isLocal: false, isDefinition: true, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !4, variables: !20)
|
|
!18 = !DISubroutineType(types: !19)
|
|
!19 = !{null}
|
|
!20 = !{!21, !22}
|
|
!21 = !DILocalVariable(name: "c", scope: !17, file: !2, line: 7, type: !7)
|
|
!22 = !DILocalVariable(name: "lc", scope: !17, file: !2, line: 8, type: !3)
|
|
!23 = !DIExpression()
|
|
!24 = !DILocation(line: 0, scope: !17)
|
|
!25 = !DIExpression(DW_OP_deref)
|
|
|