2c21278e74
This adds support for functions outlined by the IR Outliner to be recognized by the debugger. The expected behavior is that it will skip over the instructions included in that section. This is due to the fact that we can not say which of the original locations the instructions originated from. These functions will show up in the call stack, but you cannot step through them. Reviewers: paquette, vsk, djtodoro Differential Revision: https://reviews.llvm.org/D87302
136 lines
7.5 KiB
LLVM
136 lines
7.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --include-generated-funcs
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; RUN: opt -S -verify -iroutliner -ir-outlining-no-cost < %s | FileCheck %s
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; This test checks that debug info is recognized as able to be extracted along
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; with the other instructions, but is not included in the consolidated function.
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define void @function1() !dbg !6 {
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entry:
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%a = alloca i32, align 4, !dbg !17
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call void @llvm.dbg.value(metadata i32* %a, metadata !9, metadata !DIExpression()), !dbg !17
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%b = alloca i32, align 4, !dbg !18
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call void @llvm.dbg.value(metadata i32* %b, metadata !11, metadata !DIExpression()), !dbg !18
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%c = alloca i32, align 4, !dbg !19
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call void @llvm.dbg.value(metadata i32* %c, metadata !12, metadata !DIExpression()), !dbg !19
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store i32 2, i32* %a, align 4, !dbg !20
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store i32 3, i32* %b, align 4, !dbg !21
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store i32 4, i32* %c, align 4, !dbg !22
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%al = load i32, i32* %a, align 4, !dbg !23
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call void @llvm.dbg.value(metadata i32 %al, metadata !13, metadata !DIExpression()), !dbg !23
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%bl = load i32, i32* %b, align 4, !dbg !24
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call void @llvm.dbg.value(metadata i32 %bl, metadata !15, metadata !DIExpression()), !dbg !24
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%cl = load i32, i32* %c, align 4, !dbg !25
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call void @llvm.dbg.value(metadata i32 %cl, metadata !16, metadata !DIExpression()), !dbg !25
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ret void, !dbg !26
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}
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define void @function2() !dbg !27 {
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entry:
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%a = alloca i32, align 4, !dbg !35
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call void @llvm.dbg.value(metadata i32* %a, metadata !29, metadata !DIExpression()), !dbg !35
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%b = alloca i32, align 4, !dbg !36
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call void @llvm.dbg.value(metadata i32* %b, metadata !30, metadata !DIExpression()), !dbg !36
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%c = alloca i32, align 4, !dbg !37
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call void @llvm.dbg.value(metadata i32* %c, metadata !31, metadata !DIExpression()), !dbg !37
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store i32 2, i32* %a, align 4, !dbg !38
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store i32 3, i32* %b, align 4, !dbg !39
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store i32 4, i32* %c, align 4, !dbg !40
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%al = load i32, i32* %a, align 4, !dbg !41
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call void @llvm.dbg.value(metadata i32 %al, metadata !32, metadata !DIExpression()), !dbg !41
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%bl = load i32, i32* %b, align 4, !dbg !42
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call void @llvm.dbg.value(metadata i32 %bl, metadata !33, metadata !DIExpression()), !dbg !42
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%cl = load i32, i32* %c, align 4, !dbg !43
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call void @llvm.dbg.value(metadata i32 %cl, metadata !34, metadata !DIExpression()), !dbg !43
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ret void, !dbg !44
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}
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; Function Attrs: nounwind readnone speculatable willreturn
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declare void @llvm.dbg.value(metadata, metadata, metadata) #0
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attributes #0 = { nounwind readnone speculatable willreturn }
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!llvm.dbg.cu = !{!0}
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!llvm.debugify = !{!3, !4}
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!llvm.module.flags = !{!5}
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!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "legal-debug.ll", directory: "/")
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!2 = !{}
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!3 = !{i32 20}
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!4 = !{i32 12}
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!5 = !{i32 2, !"Debug Info Version", i32 3}
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!6 = distinct !DISubprogram(name: "function1", linkageName: "function1", scope: null, file: !1, line: 1, type: !7, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !8)
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!7 = !DISubroutineType(types: !2)
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!8 = !{!9, !11, !12, !13, !15, !16}
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!9 = !DILocalVariable(name: "1", scope: !6, file: !1, line: 1, type: !10)
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!10 = !DIBasicType(name: "ty64", size: 64, encoding: DW_ATE_unsigned)
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!11 = !DILocalVariable(name: "2", scope: !6, file: !1, line: 2, type: !10)
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!12 = !DILocalVariable(name: "3", scope: !6, file: !1, line: 3, type: !10)
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!13 = !DILocalVariable(name: "4", scope: !6, file: !1, line: 7, type: !14)
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!14 = !DIBasicType(name: "ty32", size: 32, encoding: DW_ATE_unsigned)
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!15 = !DILocalVariable(name: "5", scope: !6, file: !1, line: 8, type: !14)
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!16 = !DILocalVariable(name: "6", scope: !6, file: !1, line: 9, type: !14)
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!17 = !DILocation(line: 1, column: 1, scope: !6)
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!18 = !DILocation(line: 2, column: 1, scope: !6)
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!19 = !DILocation(line: 3, column: 1, scope: !6)
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!20 = !DILocation(line: 4, column: 1, scope: !6)
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!21 = !DILocation(line: 5, column: 1, scope: !6)
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!22 = !DILocation(line: 6, column: 1, scope: !6)
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!23 = !DILocation(line: 7, column: 1, scope: !6)
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!24 = !DILocation(line: 8, column: 1, scope: !6)
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!25 = !DILocation(line: 9, column: 1, scope: !6)
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!26 = !DILocation(line: 10, column: 1, scope: !6)
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!27 = distinct !DISubprogram(name: "function2", linkageName: "function2", scope: null, file: !1, line: 11, type: !7, scopeLine: 11, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !28)
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!28 = !{!29, !30, !31, !32, !33, !34}
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!29 = !DILocalVariable(name: "7", scope: !27, file: !1, line: 11, type: !10)
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!30 = !DILocalVariable(name: "8", scope: !27, file: !1, line: 12, type: !10)
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!31 = !DILocalVariable(name: "9", scope: !27, file: !1, line: 13, type: !10)
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!32 = !DILocalVariable(name: "10", scope: !27, file: !1, line: 17, type: !14)
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!33 = !DILocalVariable(name: "11", scope: !27, file: !1, line: 18, type: !14)
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!34 = !DILocalVariable(name: "12", scope: !27, file: !1, line: 19, type: !14)
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!35 = !DILocation(line: 11, column: 1, scope: !27)
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!36 = !DILocation(line: 12, column: 1, scope: !27)
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!37 = !DILocation(line: 13, column: 1, scope: !27)
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!38 = !DILocation(line: 14, column: 1, scope: !27)
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!39 = !DILocation(line: 15, column: 1, scope: !27)
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!40 = !DILocation(line: 16, column: 1, scope: !27)
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!41 = !DILocation(line: 17, column: 1, scope: !27)
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!42 = !DILocation(line: 18, column: 1, scope: !27)
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!43 = !DILocation(line: 19, column: 1, scope: !27)
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!44 = !DILocation(line: 20, column: 1, scope: !27)
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; CHECK-LABEL: @function1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4, !dbg [[DBG17:![0-9]+]]
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32* [[A]], metadata [[META9:![0-9]+]], metadata !DIExpression()), !dbg [[DBG17]]
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; CHECK-NEXT: [[B:%.*]] = alloca i32, align 4, !dbg [[DBG18:![0-9]+]]
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32* [[B]], metadata [[META11:![0-9]+]], metadata !DIExpression()), !dbg [[DBG18]]
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; CHECK-NEXT: [[C:%.*]] = alloca i32, align 4, !dbg [[DBG19:![0-9]+]]
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32* [[C]], metadata [[META12:![0-9]+]], metadata !DIExpression()), !dbg [[DBG19]]
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; CHECK-NEXT: call void @outlined_ir_func_0(i32* [[A]], i32* [[B]], i32* [[C]]), !dbg [[DBG20:![0-9]+]]
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; CHECK-NEXT: ret void, !dbg [[DBG21:![0-9]+]]
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;
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;
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; CHECK-LABEL: @function2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4, !dbg [[DBG30:![0-9]+]]
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32* [[A]], metadata [[META24:![0-9]+]], metadata !DIExpression()), !dbg [[DBG30]]
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; CHECK-NEXT: [[B:%.*]] = alloca i32, align 4, !dbg [[DBG31:![0-9]+]]
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32* [[B]], metadata [[META25:![0-9]+]], metadata !DIExpression()), !dbg [[DBG31]]
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; CHECK-NEXT: [[C:%.*]] = alloca i32, align 4, !dbg [[DBG32:![0-9]+]]
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; CHECK-NEXT: call void @llvm.dbg.value(metadata i32* [[C]], metadata [[META26:![0-9]+]], metadata !DIExpression()), !dbg [[DBG32]]
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; CHECK-NEXT: call void @outlined_ir_func_0(i32* [[A]], i32* [[B]], i32* [[C]]), !dbg [[DBG33:![0-9]+]]
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; CHECK-NEXT: ret void, !dbg [[DBG34:![0-9]+]]
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;
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;
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; CHECK: @outlined_ir_func_0(i32* [[TMP0:%.*]], i32* [[TMP1:%.*]], i32* [[TMP2:%.*]])
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; CHECK: entry_to_outline:
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; CHECK-NEXT: store i32 2, i32* [[TMP0]], align 4
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; CHECK-NEXT: store i32 3, i32* [[TMP1]], align 4
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; CHECK-NEXT: store i32 4, i32* [[TMP2]], align 4
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; CHECK-NEXT: [[AL:%.*]] = load i32, i32* [[TMP0]], align 4
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; CHECK-NEXT: [[BL:%.*]] = load i32, i32* [[TMP1]], align 4
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; CHECK-NEXT: [[CL:%.*]] = load i32, i32* [[TMP2]], align 4
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; CHECK-NEXT: br label [[ENTRY_AFTER_OUTLINE_EXITSTUB:%.*]]
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;
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