792a6f8119
These date back to when the non-intrinsic format of variable locations was still being tested and was behind a compile-time flag, so not all builds / bots would correctly run them. The solution at the time, to get at least some test coverage, was to have tests opt-in to non-intrinsic debug-info if it was built into LLVM. Nowadays, non-intrinsic format is the default and has been on for more than a year, there's no need for this flag to exist. (I've downgraded the flag from "try" to explicitly requesting non-intrinsic format in some places, so that we can deal with tests that are explicitly about non-intrinsic format in their own commit).
100 lines
5.0 KiB
LLVM
100 lines
5.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals
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; RUN: opt -S -passes=jump-threading %s -o - -S | FileCheck %s
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; Test that debug-info records in the Merge block, to be copied by
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; DuplicateInstructionsInSplitBetween, get duplicated into the relevant
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; parent blocks. And that ino jump-threading, the old dbg.value gets
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; deleted.
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; Test that JumpThreading's threadGuard() propagates the debug location
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; to the `phi` from the instruction it replaces (`%retval`)
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declare void @llvm.experimental.guard(i1, ...)
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declare i32 @f1()
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declare i32 @f2()
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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define i32 @branch_implies_guard(i32 %a) !dbg !7 {
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; CHECK-LABEL: @branch_implies_guard(
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; CHECK-NEXT: [[COND:%.*]] = icmp slt i32 [[A:%.*]], 10
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; CHECK-NEXT: br i1 [[COND]], label [[T1_SPLIT:%.*]], label [[F1_SPLIT:%.*]], !dbg [[DBG12:![0-9]+]]
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; CHECK: T1.split:
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; CHECK-NEXT: [[V1:%.*]] = call i32 @f1(), !dbg [[DBG12]]
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; CHECK-NEXT: #dbg_value(i32 0, [[META13:![0-9]+]], !DIExpression(), [[META14:![0-9]+]])
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; CHECK-NEXT: [[RETVAL3:%.*]] = add i32 [[V1]], 10, !dbg [[DBG12]]
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; CHECK-NEXT: [[CONDGUARD4:%.*]] = icmp slt i32 [[A]], 20, !dbg [[DBG12]]
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; CHECK-NEXT: br label [[MERGE:%.*]]
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; CHECK: F1.split:
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; CHECK-NEXT: [[V2:%.*]] = call i32 @f2(), !dbg [[DBG12]]
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; CHECK-NEXT: #dbg_value(i32 0, [[META13]], !DIExpression(), [[META14]])
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; CHECK-NEXT: [[RETVAL1:%.*]] = add i32 [[V2]], 10, !dbg [[DBG12]]
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; CHECK-NEXT: [[CONDGUARD2:%.*]] = icmp slt i32 [[A]], 20, !dbg [[DBG12]]
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; CHECK-NEXT: call void (i1, ...) @llvm.experimental.guard(i1 [[CONDGUARD2]]) [ "deopt"() ]
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; CHECK-NEXT: br label [[MERGE]]
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; CHECK: Merge:
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; CHECK-NEXT: [[RETPHI:%.*]] = phi i32 [ [[V1]], [[T1_SPLIT]] ], [ [[V2]], [[F1_SPLIT]] ]
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; CHECK-NEXT: [[TMP1:%.*]] = phi i32 [ [[RETVAL3]], [[T1_SPLIT]] ], [ [[RETVAL1]], [[F1_SPLIT]] ], !dbg [[DBG12]]
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; CHECK-NEXT: ret i32 [[TMP1]], !dbg [[DBG12]]
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;
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%cond = icmp slt i32 %a, 10
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br i1 %cond, label %T1, label %F1, !dbg !26
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T1:
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%v1 = call i32 @f1(), !dbg !26
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br label %Merge
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F1:
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%v2 = call i32 @f2(), !dbg !26
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br label %Merge
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Merge:
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%retPhi = phi i32 [ %v1, %T1 ], [ %v2, %F1 ]
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call void @llvm.dbg.value(metadata i32 0, metadata !12, metadata !DIExpression()), !dbg !13
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%retVal = add i32 %retPhi, 10, !dbg !26
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%condGuard = icmp slt i32 %a, 20, !dbg !26
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call void(i1, ...) @llvm.experimental.guard(i1 %condGuard) [ "deopt"() ]
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ret i32 %retVal, !dbg !26
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}
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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, isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "test.c", directory: "/tmp/out.c")
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!2 = !{}
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!3 = !{i32 7, !"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 = !{!""}
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!7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 3, type: !8, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!10, !11, !11}
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed)
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!12 = !DILocalVariable(name: "bar", arg: 1, scope: !7, file: !1, line: 3, type: !11)
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!13 = !DILocation(line: 0, scope: !7)
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!14 = !DILocalVariable(name: "baz", arg: 2, scope: !7, file: !1, line: 3, type: !11)
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!19 = distinct !DILexicalBlock(scope: !7, file: !1, line: 8, column: 7)
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!26 = !DILocation(line: 13, column: 3, scope: !7)
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;.
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; CHECK: [[META0:![0-9]+]] = distinct !DICompileUnit(language: DW_LANG_C99, file: [[META1:![0-9]+]], isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: [[META2:![0-9]+]], splitDebugInlining: false, nameTableKind: None)
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; CHECK: [[META1]] = !DIFile(filename: "test.c", directory: {{.*}})
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; CHECK: [[META2]] = !{}
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; CHECK: [[META3:![0-9]+]] = !{i32 7, !"Dwarf Version", i32 4}
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; CHECK: [[META4:![0-9]+]] = !{i32 2, !"Debug Info Version", i32 3}
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; CHECK: [[META5:![0-9]+]] = !{i32 1, !"wchar_size", i32 4}
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; CHECK: [[META6:![0-9]+]] = !{!""}
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; CHECK: [[META7:![0-9]+]] = distinct !DISubprogram(name: "foo", scope: [[META1]], file: [[META1]], line: 3, type: [[META8:![0-9]+]], scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: [[META0]], retainedNodes: [[META2]])
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; CHECK: [[META8]] = !DISubroutineType(types: [[META9:![0-9]+]])
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; CHECK: [[META9]] = !{[[META10:![0-9]+]], [[META11:![0-9]+]], [[META11]]}
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; CHECK: [[META10]] = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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; CHECK: [[META11]] = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed)
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; CHECK: [[DBG12]] = !DILocation(line: 13, column: 3, scope: [[META7]])
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; CHECK: [[META13]] = !DILocalVariable(name: "bar", arg: 1, scope: [[META7]], file: [[META1]], line: 3, type: [[META11]])
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; CHECK: [[META14]] = !DILocation(line: 0, scope: [[META7]])
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;.
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