forked from OSchip/llvm-project
70 lines
3.1 KiB
LLVM
70 lines
3.1 KiB
LLVM
; RUN: llc -stop-after=expand-isel-pseudos < %s | FileCheck %s
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;
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; Make sure that when the entry block of IR below is lowered, an instruction
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; that implictly defines %eflags has a same debug location with the icmp
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; instruction, and the branch instructions have a same debug location with the
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; br instruction.
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;
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; CHECK: [[DLOC1:![0-9]+]] = !DILocation(line: 5, column: 9, scope: !{{[0-9]+}})
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; CHECK: [[DLOC2:![0-9]+]] = !DILocation(line: 5, column: 7, scope: !{{[0-9]+}})
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; CHECK-DAG: [[VREG1:%[^ ]+]] = COPY %esi
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; CHECK-DAG: [[VREG2:%[^ ]+]] = COPY %edi
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; CHECK: SUB32rr [[VREG2]], [[VREG1]], implicit-def %eflags, debug-location [[DLOC1]]
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; CHECK-NEXT: JE_1{{.*}} implicit %eflags, debug-location [[DLOC2]]
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; CHECK-NEXT: JMP_1{{.*}} debug-location [[DLOC2]]
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target triple = "x86_64-unknown-linux-gnu"
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; Function Attrs: nounwind uwtable
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define i32 @foo(i32 %x, i32 %y) !dbg !4 {
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entry:
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tail call void @llvm.dbg.value(metadata i32 %x, i64 0, metadata !9, metadata !11), !dbg !12
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tail call void @llvm.dbg.value(metadata i32 %y, i64 0, metadata !10, metadata !11), !dbg !13
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%cmp = icmp ne i32 %x, %y, !dbg !14
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br i1 %cmp, label %if.then, label %if.else, !dbg !16
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if.then: ; preds = %entry
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%call = tail call i32 (...) @bar() #3, !dbg !17
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br label %return, !dbg !18
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if.else: ; preds = %entry
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%call1 = tail call i32 (...) @baz() #3, !dbg !19
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br label %return, !dbg !20
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return: ; preds = %if.else, %if.then
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%retval.0 = phi i32 [ %call, %if.then ], [ %call1, %if.else ]
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ret i32 %retval.0, !dbg !21
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}
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declare i32 @bar(...)
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declare i32 @baz(...)
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!2, !3}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, emissionKind: FullDebug)
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!1 = !DIFile(filename: "foo.c", directory: "b/")
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!2 = !{i32 2, !"Dwarf Version", i32 4}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 4, type: !5, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !8)
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!5 = !DISubroutineType(types: !6)
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!6 = !{!7, !7, !7}
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!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!8 = !{!9, !10}
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!9 = !DILocalVariable(name: "x", arg: 1, scope: !4, file: !1, line: 4, type: !7)
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!10 = !DILocalVariable(name: "y", arg: 2, scope: !4, file: !1, line: 4, type: !7)
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!11 = !DIExpression()
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!12 = !DILocation(line: 4, column: 13, scope: !4)
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!13 = !DILocation(line: 4, column: 20, scope: !4)
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!14 = !DILocation(line: 5, column: 9, scope: !15)
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!15 = distinct !DILexicalBlock(scope: !4, file: !1, line: 5, column: 7)
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!16 = !DILocation(line: 5, column: 7, scope: !4)
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!17 = !DILocation(line: 6, column: 12, scope: !15)
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!18 = !DILocation(line: 6, column: 5, scope: !15)
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!19 = !DILocation(line: 8, column: 12, scope: !15)
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!20 = !DILocation(line: 8, column: 5, scope: !15)
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!21 = !DILocation(line: 9, column: 1, scope: !4)
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