166 lines
7.3 KiB
LLVM
166 lines
7.3 KiB
LLVM
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; RUN: llc -mtriple=x86_64-unknown-linux-gnu -start-after=codegenprepare -stop-before=finalize-isel -o - %s | FileCheck %s
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; Input to this test looked like this and was compiled using: clang -g -O1 -mllvm -stop-after=codegenprepare -S
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;
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; extern void bar(int);
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;
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; void foo_local(int t1a) {
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; int local = 123;
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; bar(local);
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; local = t1a;
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; bar(local);
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; }
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;
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; void foo_other_param(int t2a, int t2b) {
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; bar(t2b);
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; t2b = 123;
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; bar(t2b);
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; t2b = t2a;
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; bar(t2b);
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; }
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;
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; void foo_same_param(int t3a) {
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; bar(t3a);
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; int tmp = t3a;
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; t3a = 123;
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; bar(t3a);
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; t3a = tmp;
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; bar(t3a);
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; }
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;
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; Catch metadata references for involved variables.
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;
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; CHECK-DAG: ![[T1A:.*]] = !DILocalVariable(name: "t1a"
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; CHECK-DAG: ![[LOCAL:.*]] = !DILocalVariable(name: "local"
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; CHECK-DAG: ![[T2A:.*]] = !DILocalVariable(name: "t2a"
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; CHECK-DAG: ![[T2B:.*]] = !DILocalVariable(name: "t2b"
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; CHECK-DAG: ![[T3A:.*]] = !DILocalVariable(name: "t3a"
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; CHECK-DAG: ![[TMP:.*]] = !DILocalVariable(name: "tmp"
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define dso_local void @foo_local(i32 %t1a) local_unnamed_addr #0 !dbg !7 {
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; CHECK-LABEL: name: foo_local
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; CHECK-NOT: DBG_VALUE
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; CHECK: DBG_VALUE $edi, $noreg, ![[T1A]], !DIExpression(),
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; CHECK-NEXT: %0:gr32 = COPY $edi
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; CHECK-NEXT: DBG_VALUE %0, $noreg, ![[T1A]], !DIExpression(),
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; CHECK-NEXT: DBG_VALUE 123, $noreg, ![[LOCAL]], !DIExpression(),
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; CHECK-NOT: DBG_VALUE
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; CHECK: CALL64pcrel32 @bar,
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; CHECK: DBG_VALUE %0, $noreg, ![[LOCAL]], !DIExpression(),
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; CHECK: DBG_VALUE $edi, $noreg, ![[T1A]], !DIExpression(),
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; CHECK-NOT: DBG_VALUE
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; CHECK: TCRETURNdi64 @bar,
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entry:
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call void @llvm.dbg.value(metadata i32 %t1a, metadata !12, metadata !DIExpression()), !dbg !14
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call void @llvm.dbg.value(metadata i32 123, metadata !13, metadata !DIExpression()), !dbg !15
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tail call void @bar(i32 123) #3, !dbg !16
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call void @llvm.dbg.value(metadata i32 %t1a, metadata !13, metadata !DIExpression()), !dbg !15
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tail call void @bar(i32 %t1a) #3, !dbg !17
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ret void, !dbg !18
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}
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define dso_local void @foo_other_param(i32 %t2a, i32 %t2b) local_unnamed_addr #0 !dbg !19 {
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; CHECK-LABEL: name: foo_other_param
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; CHECK: DBG_VALUE $edi, $noreg, ![[T2A]], !DIExpression(),
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; CHECK: DBG_VALUE $esi, $noreg, ![[T2B]], !DIExpression(),
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; CHECK: %1:gr32 = COPY $esi
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; CHECK: DBG_VALUE %1, $noreg, ![[T2B]], !DIExpression(),
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; CHECK: %0:gr32 = COPY $edi
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; CHECK: DBG_VALUE %0, $noreg, ![[T2A]], !DIExpression(),
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; CHECK: DBG_VALUE $edi, $noreg, ![[T2B]], !DIExpression(),
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; CHECK: CALL64pcrel32 @bar,
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; CHECK: DBG_VALUE 123, $noreg, ![[T2B]], !DIExpression(),
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; CHECK: CALL64pcrel32 @bar,
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; CHECK: DBG_VALUE %0, $noreg, ![[T2B]], !DIExpression(),
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; CHECK: DBG_VALUE $edi, $noreg, ![[T2A]], !DIExpression(),
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; CHECK: TCRETURNdi64 @bar,
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entry:
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call void @llvm.dbg.value(metadata i32 %t2a, metadata !23, metadata !DIExpression()), !dbg !25
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call void @llvm.dbg.value(metadata i32 %t2b, metadata !24, metadata !DIExpression()), !dbg !26
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tail call void @bar(i32 %t2b) #3, !dbg !27
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call void @llvm.dbg.value(metadata i32 123, metadata !24, metadata !DIExpression()), !dbg !26
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tail call void @bar(i32 123) #3, !dbg !28
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call void @llvm.dbg.value(metadata i32 %t2a, metadata !24, metadata !DIExpression()), !dbg !26
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tail call void @bar(i32 %t2a) #3, !dbg !29
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ret void, !dbg !30
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}
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define dso_local void @foo_same_param(i32 %t3a) local_unnamed_addr #0 !dbg !31 {
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; CHECK-LABEL: name: foo_same_param
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; CHECK: DBG_VALUE $edi, $noreg, ![[T3A]], !DIExpression(),
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; CHECK: %0:gr32 = COPY $edi
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; CHECK: DBG_VALUE %0, $noreg, ![[T3A]], !DIExpression(),
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; CHECK: CALL64pcrel32 @bar,
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; CHECK: DBG_VALUE %0, $noreg, ![[TMP]], !DIExpression(),
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; CHECK: DBG_VALUE 123, $noreg, ![[T3A]], !DIExpression(),
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; CHECK: CALL64pcrel32 @bar,
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; CHECK: DBG_VALUE %0, $noreg, ![[T3A]], !DIExpression(),
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; CHECK: TCRETURNdi64 @bar,
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entry:
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call void @llvm.dbg.value(metadata i32 %t3a, metadata !33, metadata !DIExpression()), !dbg !35
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tail call void @bar(i32 %t3a) #3, !dbg !36
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call void @llvm.dbg.value(metadata i32 %t3a, metadata !34, metadata !DIExpression()), !dbg !37
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call void @llvm.dbg.value(metadata i32 123, metadata !33, metadata !DIExpression()), !dbg !35
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tail call void @bar(i32 123) #3, !dbg !38
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call void @llvm.dbg.value(metadata i32 %t3a, metadata !33, metadata !DIExpression()), !dbg !35
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tail call void @bar(i32 %t3a) #3, !dbg !39
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ret void, !dbg !40
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}
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declare void @llvm.dbg.value(metadata, metadata, metadata) #2
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declare dso_local void @bar(i32) local_unnamed_addr
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attributes #0 = { nounwind uwtable }
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attributes #2 = { nounwind readnone speculatable }
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attributes #3 = { nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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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, nameTableKind: None)
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!1 = !DIFile(filename: "foo.c", directory: "")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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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 = !{!"clang version 9.0.0"}
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!7 = distinct !DISubprogram(name: "foo_local", scope: !1, file: !1, line: 3, type: !8, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11)
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!8 = !DISubroutineType(types: !9)
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!9 = !{null, !10}
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !{!12, !13}
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!12 = !DILocalVariable(name: "t1a", arg: 1, scope: !7, file: !1, line: 3, type: !10)
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!13 = !DILocalVariable(name: "local", scope: !7, file: !1, line: 4, type: !10)
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!14 = !DILocation(line: 3, column: 20, scope: !7)
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!15 = !DILocation(line: 4, column: 7, scope: !7)
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!16 = !DILocation(line: 5, column: 3, scope: !7)
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!17 = !DILocation(line: 7, column: 3, scope: !7)
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!18 = !DILocation(line: 8, column: 1, scope: !7)
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!19 = distinct !DISubprogram(name: "foo_other_param", scope: !1, file: !1, line: 10, type: !20, scopeLine: 10, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !22)
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!20 = !DISubroutineType(types: !21)
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!21 = !{null, !10, !10}
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!22 = !{!23, !24}
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!23 = !DILocalVariable(name: "t2a", arg: 1, scope: !19, file: !1, line: 10, type: !10)
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!24 = !DILocalVariable(name: "t2b", arg: 2, scope: !19, file: !1, line: 10, type: !10)
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!25 = !DILocation(line: 10, column: 26, scope: !19)
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!26 = !DILocation(line: 10, column: 35, scope: !19)
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!27 = !DILocation(line: 11, column: 3, scope: !19)
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!28 = !DILocation(line: 13, column: 3, scope: !19)
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!29 = !DILocation(line: 15, column: 3, scope: !19)
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!30 = !DILocation(line: 16, column: 1, scope: !19)
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!31 = distinct !DISubprogram(name: "foo_same_param", scope: !1, file: !1, line: 18, type: !8, scopeLine: 18, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !32)
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!32 = !{!33, !34}
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!33 = !DILocalVariable(name: "t3a", arg: 1, scope: !31, file: !1, line: 18, type: !10)
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!34 = !DILocalVariable(name: "tmp", scope: !31, file: !1, line: 20, type: !10)
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!35 = !DILocation(line: 18, column: 25, scope: !31)
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!36 = !DILocation(line: 19, column: 3, scope: !31)
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!37 = !DILocation(line: 20, column: 7, scope: !31)
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!38 = !DILocation(line: 22, column: 3, scope: !31)
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!39 = !DILocation(line: 24, column: 3, scope: !31)
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!40 = !DILocation(line: 25, column: 1, scope: !31)
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