mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-20 03:23:01 +02:00
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
25 lines
1008 B
LLVM
25 lines
1008 B
LLVM
; RUN: llc -enable-dwarf-directory -mtriple x86_64-apple-darwin10.0.0 < %s | FileCheck %s
|
|
|
|
; Radar 8884898
|
|
; CHECK: file 1 "simple.c"
|
|
|
|
declare i32 @printf(i8*, ...) nounwind
|
|
|
|
define i32 @main() nounwind !dbg !6 {
|
|
ret i32 0
|
|
}
|
|
|
|
!llvm.dbg.cu = !{!2}
|
|
!llvm.module.flags = !{!12}
|
|
|
|
!1 = !DIFile(filename: "simple.c", directory: "/Users/manav/one/two")
|
|
!2 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "LLVM build 00", isOptimized: true, emissionKind: 0, file: !10, enums: !11, retainedTypes: !11, subprograms: !9)
|
|
!5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
|
|
!6 = distinct !DISubprogram(name: "main", linkageName: "main", line: 9, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, file: !10, scope: !1, type: !7)
|
|
!7 = !DISubroutineType(types: !8)
|
|
!8 = !{!5}
|
|
!9 = !{!6}
|
|
!10 = !DIFile(filename: "simple.c", directory: "/Users/manav/one/two")
|
|
!11 = !{}
|
|
!12 = !{i32 1, !"Debug Info Version", i32 3}
|