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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/float_const.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/float_const.ll')
| -rw-r--r-- | llvm/test/DebugInfo/X86/float_const.ll | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/test/DebugInfo/X86/float_const.ll b/llvm/test/DebugInfo/X86/float_const.ll index dbdd27f5f19..cd94f74dcbe 100644 --- a/llvm/test/DebugInfo/X86/float_const.ll +++ b/llvm/test/DebugInfo/X86/float_const.ll @@ -8,7 +8,7 @@ target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-apple-macosx10.10.0" ; Function Attrs: nounwind optsize readnone uwtable -define void @foo() #0 { +define void @foo() #0 !dbg !7 { entry: tail call void @llvm.dbg.declare(metadata float* undef, metadata !13, metadata !19), !dbg !20 tail call void @llvm.dbg.value(metadata i32 1078523331, i64 0, metadata !13, metadata !19), !dbg !20 @@ -38,7 +38,7 @@ attributes #1 = { nounwind readnone } !4 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !5) !5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) !6 = !{!7} -!7 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, isOptimized: true, scopeLine: 1, file: !8, scope: !9, type: !10, function: void ()* @foo, variables: !12) +!7 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, isOptimized: true, scopeLine: 1, file: !8, scope: !9, type: !10, variables: !12) !8 = !DIFile(filename: "foo.c", directory: "") !9 = !DIFile(filename: "foo.c", directory: "") !10 = !DISubroutineType(types: !11) |
