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80 lines
3.1 KiB
80 lines
3.1 KiB
# RUN: llc -run-pass=livedebugvalues -verify-machineinstrs -march=x86-64 -o - %s | FileCheck %s
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#
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#extern void fn2(int);
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#
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#__attribute__((noinline))
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#void
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#fn1 (int x, int y) {
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# int u = x + y;
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# if (x > 1)
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# u += 1;
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# else
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# u += 2;
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# int a = 7;
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# fn2 (a);
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# u --;
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#}
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# CHECK: DBG_VALUE $edi, $noreg, !14, !DIExpression(DW_OP_LLVM_entry_value, 1), debug-location {{.*}}
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# CHECK-NOT: DBG_VALUE $esi, $noreg, !15, !DIExpression(DW_OP_LLVM_entry_value, 1)
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--- |
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; ModuleID = 'test.c'
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source_filename = "test.c"
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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; Function Attrs: noinline nounwind uwtable
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define dso_local void @fn1(i32 %x, i32 %y) local_unnamed_addr !dbg !9 {
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entry:
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call void @llvm.dbg.value(metadata i32 %x, metadata !14, metadata !DIExpression()), !dbg !18
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call void @llvm.dbg.value(metadata i32 %y, metadata !15, metadata !DIExpression()), !dbg !18
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call void @llvm.dbg.value(metadata i32 7, metadata !17, metadata !DIExpression()), !dbg !18
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tail call void @fn2(i32 7), !dbg !18
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ret void, !dbg !18
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}
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declare !dbg !4 dso_local void @fn2(i32) local_unnamed_addr
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!5, !6, !7}
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!llvm.ident = !{!8}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 9.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)
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!1 = !DIFile(filename: "test.c", directory: "/dir")
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!2 = !{}
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!3 = !{!4}
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!4 = !DISubprogram(name: "fn2", scope: !1, file: !1, line: 11, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
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!5 = !{i32 2, !"Dwarf Version", i32 4}
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!6 = !{i32 2, !"Debug Info Version", i32 3}
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!7 = !{i32 1, !"wchar_size", i32 4}
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!8 = !{!"clang version 9.0.0"}
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!9 = distinct !DISubprogram(name: "fn1", scope: !1, file: !1, line: 15, type: !10, scopeLine: 15, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !13)
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!10 = !DISubroutineType(types: !11)
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!11 = !{null, !12, !12}
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!12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!13 = !{!14, !15, !16, !17}
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!14 = !DILocalVariable(name: "x", arg: 1, scope: !9, file: !1, line: 15, type: !12)
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!15 = !DILocalVariable(name: "y", arg: 2, scope: !9, file: !1, line: 15, type: !12)
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!16 = !DILocalVariable(name: "u", scope: !9, file: !1, line: 16, type: !12)
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!17 = !DILocalVariable(name: "a", scope: !9, file: !1, line: 21, type: !12)
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!18 = !DILocation(line: 15, column: 10, scope: !9)
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...
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---
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name: fn1
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alignment: 16
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tracksRegLiveness: true
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liveins: []
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body: |
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bb.0.entry:
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DBG_VALUE $edi, $noreg, !14, !DIExpression(), debug-location !18
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DBG_VALUE $esi, $noreg, !15, !DIExpression(), debug-location !18
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DBG_VALUE 7, $noreg, !17, !DIExpression(), debug-location !18
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$edi = MOV32ri 7, debug-location !18
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TAILJMPd64 @fn2, csr_64, implicit $rsp, implicit $ssp, implicit $rsp, implicit $ssp, implicit killed $edi, debug-location !18
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...
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