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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/MC/ARM/coff-debugging-secrel.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/MC/ARM/coff-debugging-secrel.ll')
| -rw-r--r-- | llvm/test/MC/ARM/coff-debugging-secrel.ll | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/test/MC/ARM/coff-debugging-secrel.ll b/llvm/test/MC/ARM/coff-debugging-secrel.ll index 76d928957b6..a950ba2b689 100644 --- a/llvm/test/MC/ARM/coff-debugging-secrel.ll +++ b/llvm/test/MC/ARM/coff-debugging-secrel.ll @@ -9,7 +9,7 @@ target datalayout = "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:64-v128:64:128-a:0:32-n32-S64" target triple = "thumbv7--windows-itanium" -define arm_aapcs_vfpcc void @function() { +define arm_aapcs_vfpcc void @function() !dbg !1 { entry: ret void, !dbg !0 } @@ -18,7 +18,7 @@ entry: !llvm.module.flags = !{!9, !10} !0 = !DILocation(line: 1, scope: !1) -!1 = distinct !DISubprogram(name: "function", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 1, file: !2, scope: !3, type: !4, function: void ()* @function, variables: !6) +!1 = distinct !DISubprogram(name: "function", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 1, file: !2, scope: !3, type: !4, variables: !6) !2 = !DIFile(filename: "/Users/compnerd/work/llvm/test/MC/ARM/reduced.c", directory: "/Users/compnerd/work/llvm") !3 = !DIFile(filename: "/Users/compnerd/work/llvm/test/MC/ARM/reduced.c", directory: "/Users/compnerd/work/llvm") !4 = !DISubroutineType(types: !5) |
