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https://github.com/c64scene-ar/llvm-6502.git
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d397a52305
Fix testcases that don't pass the verifier after a WIP patch to check
`MDSubprogram` operands more effectively. I found the following issues:
- When `isDefinition: false`, the `variables:` field might point at
`!{i32 786468}`, or at a tuple that pointed at an empty tuple with
the comment "previously: invalid DW_TAG_base_type" (I vaguely recall
adding those comments during an upgrade script). In these cases, I
just dropped the array.
- The `variables:` field might point at something like `!{!{!8}}`,
where `!8` was an `MDLocation`. I removed the extra layer of
indirection.
- Invalid `type:` (not an `MDSubroutineType`).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233466 91177308-0d34-0410-b5e6-96231b3b80d8
103 lines
5.0 KiB
LLVM
103 lines
5.0 KiB
LLVM
; RUN: opt %s -sroa -verify -S -o - | FileCheck %s
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;
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; Test that we can partial emit debug info for aggregates repeatedly
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; split up by SROA.
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;
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; // Compile with -O1
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; typedef struct {
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; int a;
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; int b;
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; } Inner;
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;
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; typedef struct {
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; Inner inner[2];
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; } Outer;
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;
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; int foo(Outer outer) {
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; Inner i1 = outer.inner[1];
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; return i1.a;
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; }
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;
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; Verify that SROA creates a variable piece when splitting i1.
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; CHECK: call void @llvm.dbg.value(metadata i64 %outer.coerce0, i64 0, metadata ![[O:[0-9]+]], metadata ![[PIECE1:[0-9]+]]),
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; CHECK: call void @llvm.dbg.value(metadata i64 %outer.coerce1, i64 0, metadata ![[O]], metadata ![[PIECE2:[0-9]+]]),
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; CHECK: call void @llvm.dbg.value({{.*}}, i64 0, metadata ![[I1:[0-9]+]], metadata ![[PIECE3:[0-9]+]]),
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; CHECK-DAG: ![[O]] = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "outer",{{.*}} line: 10
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; CHECK-DAG: ![[PIECE1]] = !MDExpression(DW_OP_bit_piece, 0, 64)
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; CHECK-DAG: ![[PIECE2]] = !MDExpression(DW_OP_bit_piece, 64, 64)
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; CHECK-DAG: ![[I1]] = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "i1",{{.*}} line: 11
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; CHECK-DAG: ![[PIECE3]] = !MDExpression(DW_OP_bit_piece, 0, 32)
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; ModuleID = 'sroasplit-2.c'
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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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%struct.Outer = type { [2 x %struct.Inner] }
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%struct.Inner = type { i32, i32 }
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; Function Attrs: nounwind ssp uwtable
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define i32 @foo(i64 %outer.coerce0, i64 %outer.coerce1) #0 {
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%outer = alloca %struct.Outer, align 8
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%i1 = alloca %struct.Inner, align 4
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%1 = bitcast %struct.Outer* %outer to { i64, i64 }*
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%2 = getelementptr { i64, i64 }, { i64, i64 }* %1, i32 0, i32 0
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store i64 %outer.coerce0, i64* %2
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%3 = getelementptr { i64, i64 }, { i64, i64 }* %1, i32 0, i32 1
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store i64 %outer.coerce1, i64* %3
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call void @llvm.dbg.declare(metadata %struct.Outer* %outer, metadata !24, metadata !2), !dbg !25
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call void @llvm.dbg.declare(metadata %struct.Inner* %i1, metadata !26, metadata !2), !dbg !27
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%4 = getelementptr inbounds %struct.Outer, %struct.Outer* %outer, i32 0, i32 0, !dbg !27
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%5 = getelementptr inbounds [2 x %struct.Inner], [2 x %struct.Inner]* %4, i32 0, i64 1, !dbg !27
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%6 = bitcast %struct.Inner* %i1 to i8*, !dbg !27
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%7 = bitcast %struct.Inner* %5 to i8*, !dbg !27
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %6, i8* %7, i64 8, i32 4, i1 false), !dbg !27
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%8 = getelementptr inbounds %struct.Inner, %struct.Inner* %i1, i32 0, i32 0, !dbg !28
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%9 = load i32, i32* %8, align 4, !dbg !28
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ret i32 %9, !dbg !28
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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
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #2
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attributes #0 = { nounwind ssp uwtable "no-frame-pointer-elim"="true" }
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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 = !{!21, !22}
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!llvm.ident = !{!23}
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!0 = !MDCompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 1, file: !1, enums: !{}, retainedTypes: !{}, subprograms: !3, globals: !{}, imports: !{})
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!1 = !MDFile(filename: "sroasplit-2.c", directory: "")
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!2 = !MDExpression()
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!3 = !{!4}
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!4 = !MDSubprogram(name: "foo", line: 10, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 10, file: !1, scope: !5, type: !6, function: i32 (i64, i64)* @foo, variables: !{})
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!5 = !MDFile(filename: "sroasplit-2.c", directory: "")
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!6 = !MDSubroutineType(types: !7)
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!7 = !{!8, !9}
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!8 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!9 = !MDDerivedType(tag: DW_TAG_typedef, name: "Outer", line: 8, file: !1, baseType: !10)
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!10 = !MDCompositeType(tag: DW_TAG_structure_type, line: 6, size: 128, align: 32, file: !1, elements: !11)
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!11 = !{!12}
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!12 = !MDDerivedType(tag: DW_TAG_member, name: "inner", line: 7, size: 128, align: 32, file: !1, scope: !10, baseType: !13)
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!13 = !MDCompositeType(tag: DW_TAG_array_type, size: 128, align: 32, baseType: !14, elements: !19)
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!14 = !MDDerivedType(tag: DW_TAG_typedef, name: "Inner", line: 4, file: !1, baseType: !15)
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!15 = !MDCompositeType(tag: DW_TAG_structure_type, line: 1, size: 64, align: 32, file: !1, elements: !16)
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!16 = !{!17, !18}
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!17 = !MDDerivedType(tag: DW_TAG_member, name: "a", line: 2, size: 32, align: 32, file: !1, scope: !15, baseType: !8)
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!18 = !MDDerivedType(tag: DW_TAG_member, name: "b", line: 3, size: 32, align: 32, offset: 32, file: !1, scope: !15, baseType: !8)
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!19 = !{!20}
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!20 = !MDSubrange(count: 2)
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!21 = !{i32 2, !"Dwarf Version", i32 2}
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!22 = !{i32 1, !"Debug Info Version", i32 3}
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!23 = !{!"clang version 3.5.0 "}
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!24 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9)
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!25 = !MDLocation(line: 10, scope: !4)
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!26 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "i1", line: 11, scope: !4, file: !5, type: !14)
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!27 = !MDLocation(line: 11, scope: !4)
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!28 = !MDLocation(line: 12, scope: !4)
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