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83c015bd73
The debug-use flag must be set exactly for uses on DBG_VALUEs. This is so obvious that it can be trivially inferred while parsing. This will reduce noise when printing while omitting an information that has little value to the user. The parser will keep recognizing the flag for compatibility with old `.mir` files. Differential Revision: https://reviews.llvm.org/D53903 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@345671 91177308-0d34-0410-b5e6-96231b3b80d8
89 lines
4.2 KiB
LLVM
89 lines
4.2 KiB
LLVM
; 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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