094572701d
This patch makes the final major change of the RemoveDIs project, changing the default IR output from debug intrinsics to debug records. This is expected to break a large number of tests: every single one that tests for uses or declarations of debug intrinsics and does not explicitly disable writing records. If this patch has broken your downstream tests (or upstream tests on a configuration I wasn't able to run): 1. If you need to immediately unblock a build, pass `--write-experimental-debuginfo=false` to LLVM's option processing for all failing tests (remember to use `-mllvm` for clang/flang to forward arguments to LLVM). 2. For most test failures, the changes are trivial and mechanical, enough that they can be done by script; see the migration guide for a guide on how to do this: https://llvm.org/docs/RemoveDIsDebugInfo.html#test-updates 3. If any tests fail for reasons other than FileCheck check lines that need updating, such as assertion failures, that is most likely a real bug with this patch and should be reported as such. For more information, see the recent PSA: https://discourse.llvm.org/t/psa-ir-output-changing-from-debug-intrinsics-to-debug-records/79578
101 lines
5.1 KiB
LLVM
101 lines
5.1 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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; RUN: opt -S -passes=jump-threading %s -o - -S --try-experimental-debuginfo-iterators | 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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