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| author | David Blaikie <dblaikie@gmail.com> | 2018-12-05 21:42:17 +0000 |
|---|---|---|
| committer | David Blaikie <dblaikie@gmail.com> | 2018-12-05 21:42:17 +0000 |
| commit | 01f1d9b5894de7529fc9b0e6aeb6f414be950cb8 (patch) | |
| tree | 64034137931c0e2bdabba0e767aa33f7bef74bf6 /llvm/test/ThinLTO/X86/index-const-prop2.ll | |
| parent | 85393b28f99ab23acdf4bfb12694314f9b51c911 (diff) | |
| download | bcm5719-llvm-01f1d9b5894de7529fc9b0e6aeb6f414be950cb8.tar.gz bcm5719-llvm-01f1d9b5894de7529fc9b0e6aeb6f414be950cb8.zip | |
ThinLTO: Do not import debug info for imported global constants
It looks like this isn't necessary (in any tests I've done, it results
in the global being described with no location or value in the imported
side - while it's still fully described in the place it's imported from)
& results in significant/pathological debug info growth to home these
location-less global variable descriptions on the import side.
This is a rather pressing/important issue to address - this regressed
executable size for one example I'm looking at by 15%, object size is probably
similar though I haven't measured it, and a 22x increase in the number of CUs
in the cu_index in split DWARF DWP files, creating a similarly large regression
in the time it takes llvm-symbolizer to run on such binaries.
Reviewers: tejohnson, evgeny777
Differential Revision: https://reviews.llvm.org/D55309
llvm-svn: 348416
Diffstat (limited to 'llvm/test/ThinLTO/X86/index-const-prop2.ll')
| -rw-r--r-- | llvm/test/ThinLTO/X86/index-const-prop2.ll | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/test/ThinLTO/X86/index-const-prop2.ll b/llvm/test/ThinLTO/X86/index-const-prop2.ll index d6c8ec80661..96b7593dd4f 100644 --- a/llvm/test/ThinLTO/X86/index-const-prop2.ll +++ b/llvm/test/ThinLTO/X86/index-const-prop2.ll @@ -34,7 +34,7 @@ ; IMPORT: @gFoo.llvm.0 = internal unnamed_addr global i32 1, align 4 ; IMPORT-NEXT: @gBar = internal local_unnamed_addr global i32 2, align 4 -; IMPORT: !DICompileUnit({{.*}}, globals: !{{[0-9]+}}) +; IMPORT: !DICompileUnit({{.*}}) ; CODEGEN: i32 @main() ; CODEGEN-NEXT: ret i32 3 |
