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
76 lines
2.9 KiB
LLVM
76 lines
2.9 KiB
LLVM
; RUN: opt -S -mtriple=x86_64 -codegenprepare %s | FileCheck %s
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;
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; Generated from the following source with:
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; clang -O2 -g -S -emit-llvm -mllvm -stop-after=indirectbr-expand test.cpp
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;
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; extern void use(int);
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; extern int foo(long long);
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;
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; void test(int p)
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; {
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; int i = p + 4;
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; (void)foo(i); // sign extension of i
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; if (p)
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; return;
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; use(i); // use of original i
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; }
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;
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; PR39845: Check that CodeGenPrepare does not drop the reference to a local when it is
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; sign-extended and used later.
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;
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; CHECK: define{{.*}}test
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; CHECK: #dbg_value(i32 %p
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; CHECK: #dbg_value(i32 %add
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;
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define dso_local void @_Z4testi(i32 %p) local_unnamed_addr !dbg !7 {
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entry:
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call void @llvm.dbg.value(metadata i32 %p, metadata !12, metadata !DIExpression()), !dbg !14
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%add = add nsw i32 %p, 4, !dbg !15
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call void @llvm.dbg.value(metadata i32 %add, metadata !13, metadata !DIExpression()), !dbg !16
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%conv = sext i32 %add to i64, !dbg !17
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%call = tail call i32 @_Z3foox(i64 %conv), !dbg !18
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%tobool = icmp eq i32 %p, 0, !dbg !19
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br i1 %tobool, label %if.end, label %cleanup, !dbg !21
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if.end:
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tail call void @_Z3usei(i32 %add), !dbg !22
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br label %cleanup, !dbg !23
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cleanup:
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ret void, !dbg !23
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}
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declare dso_local i32 @_Z3foox(i64) local_unnamed_addr
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declare dso_local void @_Z3usei(i32) local_unnamed_addr
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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 = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 8.0.0 (trunk 348209)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
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!1 = !DIFile(filename: "test.cpp", directory: "/home/test/src")
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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 8.0.0 (trunk 348209)"}
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!7 = distinct !DISubprogram(name: "test", linkageName: "_Z4testi", scope: !1, file: !1, line: 4, type: !8, scopeLine: 5, 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: "p", arg: 1, scope: !7, file: !1, line: 4, type: !10)
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!13 = !DILocalVariable(name: "i", scope: !7, file: !1, line: 6, type: !10)
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!14 = !DILocation(line: 4, column: 15, scope: !7)
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!15 = !DILocation(line: 6, column: 13, scope: !7)
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!16 = !DILocation(line: 6, column: 7, scope: !7)
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!17 = !DILocation(line: 7, column: 13, scope: !7)
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!18 = !DILocation(line: 7, column: 9, scope: !7)
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!19 = !DILocation(line: 8, column: 7, scope: !20)
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!20 = distinct !DILexicalBlock(scope: !7, file: !1, line: 8, column: 7)
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!21 = !DILocation(line: 8, column: 7, scope: !7)
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!22 = !DILocation(line: 10, column: 3, scope: !7)
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!23 = !DILocation(line: 11, column: 1, scope: !7)
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