bb059e85d6
AggLoadStoreRewriter splits aggregate loads and stores into scalars (before the alloca is split up). The new stores and debug intrinsics are already wired up correctly - we just need to also delete the dbg.assign that is linked to the split to-be-deleted store too. Reviewed By: jmorse Differential Revision: https://reviews.llvm.org/D142882
72 lines
4.0 KiB
LLVM
72 lines
4.0 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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;
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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.assign(metadata i64 %c.coerce.fca.0.extract,{{.+}}, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 64),{{.+}}, metadata ptr undef, metadata !DIExpression())
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; CHECK: call void @llvm.dbg.assign(metadata i64 %c.coerce.fca.1.extract,{{.+}}, metadata !DIExpression(DW_OP_LLVM_fragment, 64, 64),{{.+}}, metadata ptr undef, {{.+}})
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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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