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| author | Peter Collingbourne <peter@pcc.me.uk> | 2015-11-05 22:03:56 +0000 |
|---|---|---|
| committer | Peter Collingbourne <peter@pcc.me.uk> | 2015-11-05 22:03:56 +0000 |
| commit | d4bff30370db9f2cb13838897012768739cf1ee0 (patch) | |
| tree | f6c80f666794291c78575617d326207f57939b61 /llvm/test/DebugInfo/X86/inline-member-function.ll | |
| parent | 18da38edb315fe9e063348c4d785b26111b6d7ec (diff) | |
| download | bcm5719-llvm-d4bff30370db9f2cb13838897012768739cf1ee0.tar.gz bcm5719-llvm-d4bff30370db9f2cb13838897012768739cf1ee0.zip | |
DI: Reverse direction of subprogram -> function edge.
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
Diffstat (limited to 'llvm/test/DebugInfo/X86/inline-member-function.ll')
| -rw-r--r-- | llvm/test/DebugInfo/X86/inline-member-function.ll | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/test/DebugInfo/X86/inline-member-function.ll b/llvm/test/DebugInfo/X86/inline-member-function.ll index 3a1d7574e41..712a20c3a4a 100644 --- a/llvm/test/DebugInfo/X86/inline-member-function.ll +++ b/llvm/test/DebugInfo/X86/inline-member-function.ll @@ -37,7 +37,7 @@ @i = global i32 0, align 4 ; Function Attrs: uwtable -define i32 @main() #0 { +define i32 @main() #0 !dbg !13 { entry: %this.addr.i = alloca %struct.foo*, align 8 %x.addr.i = alloca i32, align 4 @@ -77,7 +77,7 @@ attributes #1 = { nounwind readnone } !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, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !"_ZTS3foo") !12 = !{!13, !17} -!13 = distinct !DISubprogram(name: "main", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 7, file: !1, scope: !14, type: !15, function: i32 ()* @main, variables: !2) +!13 = distinct !DISubprogram(name: "main", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 7, file: !1, scope: !14, type: !15, variables: !2) !14 = !DIFile(filename: "inline.cpp", directory: "/tmp/dbginfo") !15 = !DISubroutineType(types: !16) !16 = !{!9} |
