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| author | Adam Nemet <anemet@apple.com> | 2016-02-16 21:41:51 +0000 |
|---|---|---|
| committer | Adam Nemet <anemet@apple.com> | 2016-02-16 21:41:51 +0000 |
| commit | 106fedab6f7ea001eb95e7f42cfc67b046ec3049 (patch) | |
| tree | 3b76c36ab4001c1062ac17c0bd3cd377303c1a06 | |
| parent | 6e0d5f573cb7f5b065ad8bbe76e1d2c0190d3101 (diff) | |
| download | bcm5719-llvm-106fedab6f7ea001eb95e7f42cfc67b046ec3049.tar.gz bcm5719-llvm-106fedab6f7ea001eb95e7f42cfc67b046ec3049.zip | |
[LTO] Support Statistics
Summary:
I thought -Xlinker -mllvm -Xlinker -stats worked at some point but maybe
it never did.
For clang, I believe that stats are printed from cc1_main. This patch
also prints them for LTO, specifically right after codegen happens.
I only looked at the C API for LTO briefly to see if this is a good
place. Probably there are still cases where this wouldn't be printed
but it seems to be working for the common case. I also experimented
putting this in the LTOCodeGenerator destructor but that didn't trigger
for me because ld64 does not destroy the LTOCodeGenerator.
Reviewers: dexonsmith, joker.eph
Subscribers: rafael, joker.eph, llvm-commits
Differential Revision: http://reviews.llvm.org/D17302
llvm-svn: 261013
| -rw-r--r-- | llvm/lib/LTO/LTOCodeGenerator.cpp | 5 | ||||
| -rw-r--r-- | llvm/test/tools/lto/print-stats.ll | 8 |
2 files changed, 13 insertions, 0 deletions
diff --git a/llvm/lib/LTO/LTOCodeGenerator.cpp b/llvm/lib/LTO/LTOCodeGenerator.cpp index 70626682d55..5d173b262dc 100644 --- a/llvm/lib/LTO/LTOCodeGenerator.cpp +++ b/llvm/lib/LTO/LTOCodeGenerator.cpp @@ -13,6 +13,7 @@ //===----------------------------------------------------------------------===// #include "llvm/LTO/LTOCodeGenerator.h" +#include "llvm/ADT/Statistic.h" #include "llvm/ADT/StringExtras.h" #include "llvm/Analysis/Passes.h" #include "llvm/Analysis/TargetLibraryInfo.h" @@ -553,6 +554,10 @@ bool LTOCodeGenerator::compileOptimized(ArrayRef<raw_pwrite_stream *> Out) { RelocModel, CodeModel::Default, CGOptLevel, FileType, ShouldRestoreGlobalsLinkage); + // If statistics were requested, print them out after codegen. + if (llvm::AreStatisticsEnabled()) + llvm::PrintStatistics(); + return true; } diff --git a/llvm/test/tools/lto/print-stats.ll b/llvm/test/tools/lto/print-stats.ll new file mode 100644 index 00000000000..eba53d92cd5 --- /dev/null +++ b/llvm/test/tools/lto/print-stats.ll @@ -0,0 +1,8 @@ +; RUN: llvm-as %s -o %t.o +; RUN: %ld64 -lto_library %llvmshlibdir/libLTO.dylib -arch x86_64 -dylib -mllvm -stats -o %t.dylib %t.o 2>&1 | FileCheck --check-prefix=STATS %s +; RUN: %ld64 -lto_library %llvmshlibdir/libLTO.dylib -arch x86_64 -dylib -o %t.dylib %t.o 2>&1 | FileCheck --check-prefix=NO_STATS %s + +target triple = "x86_64-apple-macosx10.8.0" + +; STATS: Statistics Collected +; NO_STATS-NOT: Statistics Collected |
