60e1c835d3
SROA needs to update llvm.dbg.assign intrinsics when it migrates debug info in response to alloca splitting; this patch updates the debug info migration code to handle DPVAssigns as well, making use of generic code to avoid duplication as much as possible.
74 lines
4.1 KiB
LLVM
74 lines
4.1 KiB
LLVM
; RUN: opt -passes=sroa -S -o - %s \
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; RUN: | FileCheck %s --implicit-check-not="call void @llvm.dbg"
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; RUN: opt --try-experimental-debuginfo-iterators -passes=sroa -S -o - %s \
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; RUN: | FileCheck %s --implicit-check-not="call void @llvm.dbg"
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;
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;; Based on llvm/test/DebugInfo/ARM/sroa-complex.ll
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;; generated from:
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;; $ cat test.c
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;; void f(_Complex double c) { c = 0; }
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;; $ clang test.c -g -O2 -c -Xclang -disable-llvm-passes -S \
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;; -emit-llvm -o - --target="thumbv7-apple-unknown"
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;;
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;; Commented out some parts of the function that are not relevant to the test.
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;;
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;; Check that a split store gets dbg.assigns fragments. Ensure that only the
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;; value-expression gets fragment info; that the address-expression remains
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;; untouched.
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;; dbg.assigns for the split (then promoted) stores.
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; CHECK: %c.coerce.fca.0.extract = extractvalue [2 x i64] %c.coerce, 0
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; CHECK: %c.coerce.fca.1.extract = extractvalue [2 x i64] %c.coerce, 1
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; CHECK: call void @llvm.dbg.value(metadata i64 %c.coerce.fca.0.extract,{{.+}}, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 64))
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; CHECK: call void @llvm.dbg.value(metadata i64 %c.coerce.fca.1.extract,{{.+}}, metadata !DIExpression(DW_OP_LLVM_fragment, 64, 64))
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target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "armv7-apple-unknown"
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define dso_local arm_aapcscc void @f([2 x i64] %c.coerce) #0 !dbg !8 {
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entry:
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%c = alloca { double, double }, align 8, !DIAssignID !14
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call void @llvm.dbg.assign(metadata i1 undef, metadata !13, metadata !DIExpression(), metadata !14, metadata ptr %c, metadata !DIExpression()), !dbg !15
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%0 = bitcast ptr %c to [2 x i64]*
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store [2 x i64] %c.coerce, [2 x i64]* %0, align 8, !DIAssignID !16
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call void @llvm.dbg.assign(metadata [2 x i64] %c.coerce, metadata !13, metadata !DIExpression(), metadata !16, metadata [2 x i64]* %0, metadata !DIExpression()), !dbg !15
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; --- The rest of this function isn't useful for the test ---
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;%c.realp = getelementptr inbounds { double, double }, ptr %c, i32 0, i32 0, !dbg !17
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;%c.imagp = getelementptr inbounds { double, double }, ptr %c, i32 0, i32 1, !dbg !17
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;store double 0.000000e+00, ptr %c.realp, align 8, !dbg !17, !DIAssignID !18
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;call void @llvm.dbg.assign(metadata double 0.000000e+00, metadata !13, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 64), metadata !18, metadata ptr %c.realp, metadata !DIExpression()), !dbg !15
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;store double 0.000000e+00, ptr %c.imagp, align 8, !dbg !17, !DIAssignID !19
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;call void @llvm.dbg.assign(metadata double 0.000000e+00, metadata !13, metadata !DIExpression(DW_OP_LLVM_fragment, 64, 64), metadata !19, metadata ptr %c.imagp, metadata !DIExpression()), !dbg !15
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ret void, !dbg !20
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}
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declare void @llvm.dbg.declare(metadata, metadata, metadata)
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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 = !{!3, !4, !5, !6, !1000}
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!llvm.ident = !{!7}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 12.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "test.c", directory: "/")
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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 = !{i32 1, !"min_enum_size", i32 4}
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!7 = !{!"clang version 12.0.0"}
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!8 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 2, type: !9, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !12)
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!9 = !DISubroutineType(types: !10)
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!10 = !{null, !11}
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!11 = !DIBasicType(name: "complex", size: 128, encoding: DW_ATE_complex_float)
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!12 = !{!13}
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!13 = !DILocalVariable(name: "c", arg: 1, scope: !8, file: !1, line: 2, type: !11)
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!14 = distinct !DIAssignID()
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!15 = !DILocation(line: 0, scope: !8)
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!16 = distinct !DIAssignID()
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!17 = !DILocation(line: 2, column: 31, scope: !8)
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!18 = distinct !DIAssignID()
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!19 = distinct !DIAssignID()
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!20 = !DILocation(line: 2, column: 36, scope: !8)
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!1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true}
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