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
64 lines
2.7 KiB
LLVM
64 lines
2.7 KiB
LLVM
; RUN: opt -passes=sroa -S %s -o - | FileCheck %s
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; RUN: opt --try-experimental-debuginfo-iterators -passes=sroa -S %s -o - | FileCheck %s
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;; Check that a dbg.assign for a promoted variable becomes a kill location if
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;; it used an arglist.
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; CHECK: if.then:
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; CHECK-NEXT: #dbg_value(i32 poison,
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; CHECK: if.else:
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; CHECK-NEXT: #dbg_value(i32 2,
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declare i8 @get_i8()
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define internal fastcc i64 @fun() !dbg !18 {
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entry:
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%codepoint = alloca i32, align 4, !DIAssignID !27
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call void @llvm.dbg.assign(metadata i1 poison, metadata !15, metadata !DIExpression(), metadata !27, metadata ptr %codepoint, metadata !DIExpression()), !dbg !26
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%0 = call i8 @get_i8() #2
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%1 = and i8 %0, 15
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%and14 = zext i8 %1 to i32
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%shl = shl nuw nsw i32 %and14, 12
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%2 = call i8 @get_i8() #2
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%3 = and i8 %2, 63
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%and21 = zext i8 %3 to i32
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%or22 = or i32 %shl, %and21
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%cmp = icmp ugt i32 %or22, 57343
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br i1 %cmp, label %if.then, label %if.else
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if.then:
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store i32 %or22, ptr %codepoint, align 4, !DIAssignID !25
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call void @llvm.dbg.assign(metadata !DIArgList(i32 %shl, i32 %and21), metadata !15, metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_or, DW_OP_stack_value), metadata !25, metadata ptr %codepoint, metadata !DIExpression()), !dbg !26
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br label %end
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if.else:
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store i32 2, ptr %codepoint, align 4, !DIAssignID !28
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call void @llvm.dbg.assign(metadata i32 2, metadata !15, metadata !DIExpression(), metadata !28, metadata ptr %codepoint, metadata !DIExpression()), !dbg !26
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br label %end
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end:
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%r = load i32, ptr %codepoint
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%rr = sext i32 %r to i64
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ret i64 %rr
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}
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declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!13, !14}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 17.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, imports: !2, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "reduce.cpp", directory: "/")
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!2 = !{}
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!13 = !{i32 2, !"Debug Info Version", i32 3}
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!14 = !{i32 7, !"debug-info-assignment-tracking", i1 true}
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!15 = !DILocalVariable(name: "codepoint", scope: !18, file: !1, line: 10, type: !24)
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!18 = distinct !DISubprogram(name: "fun", linkageName: "fun", scope: !1, file: !1, line: 4, type: !19, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
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!19 = distinct !DISubroutineType(types: !2)
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!24 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned)
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!25 = distinct !DIAssignID()
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!26 = !DILocation(line: 0, scope: !18)
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!27 = distinct !DIAssignID()
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!28 = distinct !DIAssignID()
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