mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 10:42:39 +01:00
5b721561aa
Previously, subprograms contained a metadata reference to the function they described. Because most clients need to get or set a subprogram for a given function rather than the other way around, this created unneeded inefficiency. For example, many passes needed to call the function llvm::makeSubprogramMap() to build a mapping from functions to subprograms, and the IR linker needed to fix up function references in a way that caused quadratic complexity in the IR linking phase of LTO. This change reverses the direction of the edge by storing the subprogram as function-level metadata and removing DISubprogram's function field. Since this is an IR change, a bitcode upgrade has been provided. Fixes PR23367. An upgrade script for textual IR for out-of-tree clients is attached to the PR. Differential Revision: http://reviews.llvm.org/D14265 llvm-svn: 252219
60 lines
3.2 KiB
LLVM
60 lines
3.2 KiB
LLVM
; RUN: llvm-link %s %p/DbgDeclare2.ll -o %t.bc
|
|
; RUN: llvm-dis < %t.bc | FileCheck %s
|
|
; Test if metadata in dbg.declare is mapped properly or not.
|
|
|
|
; rdar://13089880
|
|
; CHECK: define i32 @main(i32 %argc, i8** %argv)
|
|
; CHECK: call void @llvm.dbg.declare(metadata i32* %argc.addr, metadata !{{[0-9]+}}, metadata {{.*}})
|
|
; CHECK: call void @llvm.dbg.declare(metadata i8*** %argv.addr, metadata !{{[0-9]+}}, metadata {{.*}})
|
|
; CHECK: define void @test(i32 %argc, i8** %argv)
|
|
; CHECK: call void @llvm.dbg.declare(metadata i32* %argc.addr, metadata !{{[0-9]+}}, metadata {{.*}})
|
|
; CHECK: call void @llvm.dbg.declare(metadata i8*** %argv.addr, metadata !{{[0-9]+}}, metadata {{.*}})
|
|
; CHECK: call void @llvm.dbg.declare(metadata i32* %i, metadata !{{[0-9]+}}, metadata {{.*}})
|
|
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-apple-macosx10.9.0"
|
|
|
|
define i32 @main(i32 %argc, i8** %argv) uwtable ssp !dbg !5 {
|
|
entry:
|
|
%retval = alloca i32, align 4
|
|
%argc.addr = alloca i32, align 4
|
|
%argv.addr = alloca i8**, align 8
|
|
store i32 0, i32* %retval
|
|
store i32 %argc, i32* %argc.addr, align 4
|
|
call void @llvm.dbg.declare(metadata i32* %argc.addr, metadata !14, metadata !DIExpression()), !dbg !15
|
|
store i8** %argv, i8*** %argv.addr, align 8
|
|
call void @llvm.dbg.declare(metadata i8*** %argv.addr, metadata !16, metadata !DIExpression()), !dbg !15
|
|
%0 = load i32, i32* %argc.addr, align 4, !dbg !17
|
|
%1 = load i8**, i8*** %argv.addr, align 8, !dbg !17
|
|
call void @test(i32 %0, i8** %1), !dbg !17
|
|
ret i32 0, !dbg !19
|
|
}
|
|
|
|
declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
|
|
|
|
declare void @test(i32, i8**)
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!21}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.3 (trunk 173515)", isOptimized: true, emissionKind: 0, file: !20, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2)
|
|
!2 = !{}
|
|
!3 = !{!5}
|
|
!5 = distinct !DISubprogram(name: "main", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 4, file: !20, scope: null, type: !7, variables: !2)
|
|
!6 = !DIFile(filename: "main.cpp", directory: "/private/tmp")
|
|
!7 = !DISubroutineType(types: !8)
|
|
!8 = !{!9, !9, !10}
|
|
!9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
|
!10 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !11)
|
|
!11 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !12)
|
|
!12 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !13)
|
|
!13 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
|
|
!14 = !DILocalVariable(name: "argc", line: 3, arg: 1, scope: !5, file: !6, type: !9)
|
|
!15 = !DILocation(line: 3, scope: !5)
|
|
!16 = !DILocalVariable(name: "argv", line: 3, arg: 2, scope: !5, file: !6, type: !10)
|
|
!17 = !DILocation(line: 5, scope: !18)
|
|
!18 = distinct !DILexicalBlock(line: 4, column: 0, file: !20, scope: !5)
|
|
!19 = !DILocation(line: 6, scope: !18)
|
|
!20 = !DIFile(filename: "main.cpp", directory: "/private/tmp")
|
|
!21 = !{i32 1, !"Debug Info Version", i32 3}
|