mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-20 03:23:01 +02:00
0c1aee0b16
As a follow-up to r246098, require `DISubprogram` definitions
(`isDefinition: true`) to be 'distinct'. Specifically, add an assembler
check, a verifier check, and bitcode upgrading logic to combat testcase
bitrot after the `DIBuilder` change.
While working on the testcases, I realized that
test/Linker/subprogram-linkonce-weak-odr.ll isn't relevant anymore. Its
purpose was to check for a corner case in PR22792 where two subprogram
definitions match exactly and share the same metadata node. The new
verifier check, requiring that subprogram definitions are 'distinct',
precludes that possibility.
I updated almost all the IR with the following script:
git grep -l -E -e '= !DISubprogram\(.* isDefinition: true' |
grep -v test/Bitcode |
xargs sed -i '' -e 's/= \(!DISubprogram(.*, isDefinition: true\)/= distinct \1/'
Likely some variant of would work for out-of-tree testcases.
llvm-svn: 246327
98 lines
4.6 KiB
LLVM
98 lines
4.6 KiB
LLVM
; RUN: opt %s -sroa -verify -S -o - | FileCheck %s
|
|
;
|
|
; Test that we can partial emit debug info for aggregates repeatedly
|
|
; split up by SROA.
|
|
;
|
|
; // Compile with -O1
|
|
; typedef struct {
|
|
; int a;
|
|
; long int b;
|
|
; } Inner;
|
|
;
|
|
; typedef struct {
|
|
; Inner inner[2];
|
|
; } Outer;
|
|
;
|
|
; int foo(Outer outer) {
|
|
; Inner i1 = outer.inner[1];
|
|
; return i1.a;
|
|
; }
|
|
;
|
|
|
|
; Verify that SROA creates a variable piece when splitting i1.
|
|
; CHECK: %[[I1:.*]] = alloca [12 x i8], align 4
|
|
; CHECK: call void @llvm.dbg.declare(metadata [12 x i8]* %[[I1]], metadata ![[VAR:[0-9]+]], metadata ![[PIECE1:[0-9]+]])
|
|
; CHECK: call void @llvm.dbg.value(metadata i32 %[[A:.*]], i64 0, metadata ![[VAR]], metadata ![[PIECE2:[0-9]+]])
|
|
; CHECK: ret i32 %[[A]]
|
|
; Read Var and Piece:
|
|
; CHECK: ![[VAR]] = !DILocalVariable(name: "i1",{{.*}} line: 11,
|
|
; CHECK: ![[PIECE1]] = !DIExpression(DW_OP_bit_piece, 32, 96)
|
|
; CHECK: ![[PIECE2]] = !DIExpression(DW_OP_bit_piece, 0, 32)
|
|
|
|
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-apple-macosx10.9.0"
|
|
|
|
%struct.Outer = type { [2 x %struct.Inner] }
|
|
%struct.Inner = type { i32, i64 }
|
|
|
|
; Function Attrs: nounwind ssp uwtable
|
|
define i32 @foo(%struct.Outer* byval align 8 %outer) #0 {
|
|
entry:
|
|
%i1 = alloca %struct.Inner, align 8
|
|
call void @llvm.dbg.declare(metadata %struct.Outer* %outer, metadata !25, metadata !2), !dbg !26
|
|
call void @llvm.dbg.declare(metadata %struct.Inner* %i1, metadata !27, metadata !2), !dbg !28
|
|
%inner = getelementptr inbounds %struct.Outer, %struct.Outer* %outer, i32 0, i32 0, !dbg !28
|
|
%arrayidx = getelementptr inbounds [2 x %struct.Inner], [2 x %struct.Inner]* %inner, i32 0, i64 1, !dbg !28
|
|
%0 = bitcast %struct.Inner* %i1 to i8*, !dbg !28
|
|
%1 = bitcast %struct.Inner* %arrayidx to i8*, !dbg !28
|
|
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %0, i8* %1, i64 16, i32 8, i1 false), !dbg !28
|
|
%a = getelementptr inbounds %struct.Inner, %struct.Inner* %i1, i32 0, i32 0, !dbg !29
|
|
%2 = load i32, i32* %a, align 4, !dbg !29
|
|
ret i32 %2, !dbg !29
|
|
}
|
|
|
|
; Function Attrs: nounwind readnone
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
|
|
|
|
; Function Attrs: nounwind
|
|
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #2
|
|
|
|
attributes #0 = { nounwind ssp uwtable }
|
|
attributes #1 = { nounwind readnone }
|
|
attributes #2 = { nounwind }
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!22, !23}
|
|
!llvm.ident = !{!24}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 1, file: !1, enums: !{}, retainedTypes: !{}, subprograms: !3, globals: !{}, imports: !{})
|
|
!1 = !DIFile(filename: "sroasplit-1.c", directory: "")
|
|
!2 = !DIExpression()
|
|
!3 = !{!4}
|
|
!4 = distinct !DISubprogram(name: "foo", line: 10, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 10, file: !1, scope: !5, type: !6, function: i32 (%struct.Outer*)* @foo, variables: !{})
|
|
!5 = !DIFile(filename: "sroasplit-1.c", directory: "")
|
|
!6 = !DISubroutineType(types: !7)
|
|
!7 = !{!8, !9}
|
|
!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
|
!9 = !DIDerivedType(tag: DW_TAG_typedef, name: "Outer", line: 8, file: !1, baseType: !10)
|
|
!10 = !DICompositeType(tag: DW_TAG_structure_type, line: 6, size: 256, align: 64, file: !1, elements: !11)
|
|
!11 = !{!12}
|
|
!12 = !DIDerivedType(tag: DW_TAG_member, name: "inner", line: 7, size: 256, align: 64, file: !1, scope: !10, baseType: !13)
|
|
!13 = !DICompositeType(tag: DW_TAG_array_type, size: 256, align: 64, baseType: !14, elements: !20)
|
|
!14 = !DIDerivedType(tag: DW_TAG_typedef, name: "Inner", line: 4, file: !1, baseType: !15)
|
|
!15 = !DICompositeType(tag: DW_TAG_structure_type, line: 1, size: 128, align: 64, file: !1, elements: !16)
|
|
!16 = !{!17, !18}
|
|
!17 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 2, size: 32, align: 32, file: !1, scope: !15, baseType: !8)
|
|
!18 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 3, size: 64, align: 64, offset: 64, file: !1, scope: !15, baseType: !19)
|
|
!19 = !DIBasicType(tag: DW_TAG_base_type, name: "long int", size: 64, align: 64, encoding: DW_ATE_signed)
|
|
!20 = !{!21}
|
|
!21 = !DISubrange(count: 2)
|
|
!22 = !{i32 2, !"Dwarf Version", i32 2}
|
|
!23 = !{i32 1, !"Debug Info Version", i32 3}
|
|
!24 = !{!"clang version 3.5.0 "}
|
|
!25 = !DILocalVariable(name: "outer", line: 10, arg: 1, scope: !4, file: !5, type: !9)
|
|
!26 = !DILocation(line: 10, scope: !4)
|
|
!27 = !DILocalVariable(name: "i1", line: 11, scope: !4, file: !5, type: !14)
|
|
!28 = !DILocation(line: 11, scope: !4)
|
|
!29 = !DILocation(line: 12, scope: !4)
|