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| author | Dale Johannesen <dalej@apple.com> | 2007-06-01 23:02:45 +0000 |
|---|---|---|
| committer | Dale Johannesen <dalej@apple.com> | 2007-06-01 23:02:45 +0000 |
| commit | a5a2117a4659ecadbec9476f2e537bcb7501b509 (patch) | |
| tree | f2514b99ff19042b85cb4f1e2d8bd28c682e9f46 /test | |
| parent | e770787be101e522425f658f76e4bb3091498f99 (diff) | |
| download | external_llvm-a5a2117a4659ecadbec9476f2e537bcb7501b509.zip external_llvm-a5a2117a4659ecadbec9476f2e537bcb7501b509.tar.gz external_llvm-a5a2117a4659ecadbec9476f2e537bcb7501b509.tar.bz2 | |
Implement smarter algorithm for choosing which blocks to tail-merge.
See test/CodeGen/X86/test-pic-jtbl.ll for a case where it works well;
shaves another 10K off our favorite benchmark. I was hesitant about
this because of compile speed, but seems to do OK on a bootstrap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37392 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/test-pic-jtbl.ll | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/test/CodeGen/X86/test-pic-jtbl.ll b/test/CodeGen/X86/test-pic-jtbl.ll index d2b8cc3..1afa4ca 100644 --- a/test/CodeGen/X86/test-pic-jtbl.ll +++ b/test/CodeGen/X86/test-pic-jtbl.ll @@ -2,10 +2,9 @@ ; RUN: -o %t -f ; RUN: grep _GLOBAL_OFFSET_TABLE_ %t ; RUN: grep piclabel %t | wc -l | grep 3 -; RUN: grep PLT %t | wc -l | grep 11 +; RUN: grep PLT %t | wc -l | grep 6 ; RUN: grep GOTOFF %t | wc -l | grep 1 -; RUN: grep JTI %t | wc -l | grep 13 -; Improved tail merging could reduce the number of PLT's and JTI's further. +; RUN: grep JTI %t | wc -l | grep 8 define void @bar(i32 %n.u) { entry: |