89 lines
4.2 KiB
LLVM
89 lines
4.2 KiB
LLVM
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; RUN: llc < %s -O1 -stop-after=livedebugvalues -o - | FileCheck %s
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; This ll-file was created by:
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; clang --target=powerpc-apple-darwin9 -O1 -S -g -emit-llvm debuginfo-stackarg.c
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;
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; with debuginfo-stackarg.c being the program:
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; long long foo(long long bar1, long long bar2, long long bar3, long long bar4, long long bar5)
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; {
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; return bar1 + bar2 + bar3 + bar4 + bar5;
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; }
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; ModuleID = 'debuginfo-stackarg.c'
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source_filename = "debuginfo-stackarg.c"
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target datalayout = "E-m:o-p:32:32-f64:32:64-n32"
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;;;target triple = "powerpc-apple-macosx10.5.0"
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target triple = "powerpc-unknown-linux-gnu"
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; Function Attrs: nounwind readnone ssp uwtable
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define i64 @foo(i64 %bar1, i64 %bar2, i64 %bar3, i64 %bar4, i64 %bar5) local_unnamed_addr #0 !dbg !8 {
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; Variable bar5 should be associated with a position on the stack (offset relative r1).
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; Let's verify that we point out the start address (lowest address).
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;
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; First find the metadata id for bar5.
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; CHECK: !17 = !DILocalVariable(name: "bar5", arg: 5
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;
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; Now check that we got two entries on the fixed stack with "expected" offsets.
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; CHECK-LABEL: fixedStack:
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; CHECK: id: 0, type: default, offset: 12, size: 4
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; CHECK: id: 1, type: default, offset: 8, size: 4
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; CHECK-NOT: id: 2
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; CHECK-LABEL: stack:
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;
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; Finally check the resulting function body.
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; We expect to find a DBG_VALUE refering to the metadata id for bar5, using the lowest
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; of the two fixed stack offsets found earlier.
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; CHECK-LABEL: body:
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; CHECK: DBG_VALUE $r1, 0, !17, !DIExpression(DW_OP_plus_uconst, 8)
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entry:
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tail call void @llvm.dbg.value(metadata i64 %bar1, metadata !13, metadata !DIExpression()), !dbg !18
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tail call void @llvm.dbg.value(metadata i64 %bar2, metadata !14, metadata !DIExpression()), !dbg !19
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tail call void @llvm.dbg.value(metadata i64 %bar3, metadata !15, metadata !DIExpression()), !dbg !20
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tail call void @llvm.dbg.value(metadata i64 %bar4, metadata !16, metadata !DIExpression()), !dbg !21
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tail call void @llvm.dbg.value(metadata i64 %bar5, metadata !17, metadata !DIExpression()), !dbg !22
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%add = add nsw i64 %bar2, %bar1, !dbg !23
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%add1 = add nsw i64 %add, %bar3, !dbg !24
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%add2 = add nsw i64 %add1, %bar4, !dbg !25
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%add3 = add nsw i64 %add2, %bar5, !dbg !26
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ret i64 %add3, !dbg !27
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}
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.value(metadata, metadata, metadata) #1
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attributes #0 = { nounwind readnone ssp uwtable }
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attributes #1 = { nounwind readnone speculatable }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5, !6}
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!llvm.ident = !{!7}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "debuginfo-stackarg.c", directory: "/repo")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 2}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{i32 7, !"PIC Level", i32 2}
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!7 = !{!"clang version 6.0.0"}
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!8 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !9, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !12)
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!9 = !DISubroutineType(types: !10)
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!10 = !{!11, !11, !11, !11, !11, !11}
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!11 = !DIBasicType(name: "long long int", size: 64, encoding: DW_ATE_signed)
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!12 = !{!13, !14, !15, !16, !17}
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!13 = !DILocalVariable(name: "bar1", arg: 1, scope: !8, file: !1, line: 1, type: !11)
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!14 = !DILocalVariable(name: "bar2", arg: 2, scope: !8, file: !1, line: 1, type: !11)
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!15 = !DILocalVariable(name: "bar3", arg: 3, scope: !8, file: !1, line: 1, type: !11)
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!16 = !DILocalVariable(name: "bar4", arg: 4, scope: !8, file: !1, line: 1, type: !11)
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!17 = !DILocalVariable(name: "bar5", arg: 5, scope: !8, file: !1, line: 1, type: !11)
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!18 = !DILocation(line: 1, column: 25, scope: !8)
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!19 = !DILocation(line: 1, column: 41, scope: !8)
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!20 = !DILocation(line: 1, column: 57, scope: !8)
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!21 = !DILocation(line: 1, column: 73, scope: !8)
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!22 = !DILocation(line: 1, column: 89, scope: !8)
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!23 = !DILocation(line: 3, column: 15, scope: !8)
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!24 = !DILocation(line: 3, column: 22, scope: !8)
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!25 = !DILocation(line: 3, column: 29, scope: !8)
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!26 = !DILocation(line: 3, column: 36, scope: !8)
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!27 = !DILocation(line: 3, column: 3, scope: !8)
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