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
103 lines
4.5 KiB
LLVM
103 lines
4.5 KiB
LLVM
; ModuleID = 'array.c'
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;
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; From (clang -g -c -O0):
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;
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; void f(int* p) {
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; p[0] = 42;
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; }
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;
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; int main(int argc, char** argv) {
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; int array[4] = { 0, 1, 2, 3 };
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; f(array);
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; return array[0];
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; }
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;
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; RUN: opt %s -O2 -S -o - | FileCheck %s
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; RUN: opt --try-experimental-debuginfo-iterators %s -O2 -S -o - | FileCheck %s
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; Test that we correctly lower dbg.declares for arrays.
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;
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; CHECK: define noundef i32 @main
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; CHECK: #dbg_value(i32 42, ![[ARRAY:[0-9]+]], !DIExpression(DW_OP_LLVM_fragment, 0, 32),
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; CHECK: ![[ARRAY]] = !DILocalVariable(name: "array",{{.*}} line: 6
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.9.0"
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@main.array = private unnamed_addr constant [4 x i32] [i32 0, i32 1, i32 2, i32 3], align 16
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; Function Attrs: nounwind ssp uwtable
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define void @f(ptr %p) #0 !dbg !4 {
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entry:
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%p.addr = alloca ptr, align 8
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store ptr %p, ptr %p.addr, align 8
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call void @llvm.dbg.declare(metadata ptr %p.addr, metadata !19, metadata !DIExpression()), !dbg !20
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%0 = load ptr, ptr %p.addr, align 8, !dbg !21
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store i32 42, ptr %0, align 4, !dbg !21
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ret void, !dbg !22
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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; Function Attrs: nounwind ssp uwtable
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define i32 @main(i32 %argc, ptr %argv) #0 !dbg !10 {
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entry:
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%retval = alloca i32, align 4
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%argc.addr = alloca i32, align 4
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%argv.addr = alloca ptr, align 8
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%array = alloca [4 x i32], align 16
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store i32 0, ptr %retval
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store i32 %argc, ptr %argc.addr, align 4
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call void @llvm.dbg.declare(metadata ptr %argc.addr, metadata !23, metadata !DIExpression()), !dbg !24
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store ptr %argv, ptr %argv.addr, align 8
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call void @llvm.dbg.declare(metadata ptr %argv.addr, metadata !25, metadata !DIExpression()), !dbg !24
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call void @llvm.dbg.declare(metadata ptr %array, metadata !26, metadata !DIExpression()), !dbg !30
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call void @llvm.memcpy.p0.p0.i64(ptr align 16 %array, ptr align 16 @main.array, i64 16, i1 false), !dbg !30
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call void @f(ptr %array), !dbg !31
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%0 = load i32, ptr %array, align 4, !dbg !32
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ret i32 %0, !dbg !32
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}
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; Function Attrs: nounwind
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declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture readonly, i64, i1) #2
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attributes #0 = { nounwind ssp uwtable }
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attributes #1 = { nounwind readnone }
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attributes #2 = { nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!16, !17}
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!llvm.ident = !{!18}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
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!1 = !DIFile(filename: "array.c", directory: "")
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!2 = !{}
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!4 = distinct !DISubprogram(name: "f", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, retainedNodes: !2)
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!5 = !DIFile(filename: "array.c", directory: "")
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!6 = !DISubroutineType(types: !7)
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!7 = !{null, !8}
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!8 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !9)
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!9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!10 = distinct !DISubprogram(name: "main", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 5, file: !1, scope: !5, type: !11, retainedNodes: !2)
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!11 = !DISubroutineType(types: !12)
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!12 = !{!9, !9, !13}
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!13 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !14)
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!14 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !15)
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!15 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
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!16 = !{i32 2, !"Dwarf Version", i32 2}
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!17 = !{i32 1, !"Debug Info Version", i32 3}
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!18 = !{!"clang version 3.5.0 "}
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!19 = !DILocalVariable(name: "p", line: 1, arg: 1, scope: !4, file: !5, type: !8)
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!20 = !DILocation(line: 1, scope: !4)
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!21 = !DILocation(line: 2, scope: !4)
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!22 = !DILocation(line: 3, scope: !4)
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!23 = !DILocalVariable(name: "argc", line: 5, arg: 1, scope: !10, file: !5, type: !9)
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!24 = !DILocation(line: 5, scope: !10)
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!25 = !DILocalVariable(name: "argv", line: 5, arg: 2, scope: !10, file: !5, type: !13)
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!26 = !DILocalVariable(name: "array", line: 6, scope: !10, file: !5, type: !27)
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!27 = !DICompositeType(tag: DW_TAG_array_type, size: 128, align: 32, baseType: !9, elements: !28)
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!28 = !{!29}
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!29 = !DISubrange(count: 4)
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!30 = !DILocation(line: 6, scope: !10)
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!31 = !DILocation(line: 7, scope: !10)
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!32 = !DILocation(line: 8, scope: !10)
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