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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2011-10-28 11:14:31 +0000 |
|---|---|---|
| committer | Stephen Hines <srhines@google.com> | 2011-11-14 09:11:25 -0800 |
| commit | b008e84283246609598c7a54aabec162e526d446 (patch) | |
| tree | d874921e1d5395485f13748a0c347b1c64c9a1cf /lib/CodeGen/MachineBranchProbabilityInfo.cpp | |
| parent | 412ef60292a473fef65d78ad8a7f5acac465871f (diff) | |
| download | external_llvm-b008e84283246609598c7a54aabec162e526d446.zip external_llvm-b008e84283246609598c7a54aabec162e526d446.tar.gz external_llvm-b008e84283246609598c7a54aabec162e526d446.tar.bz2 | |
Use BranchProbability compare operators.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143190 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineBranchProbabilityInfo.cpp')
| -rw-r--r-- | lib/CodeGen/MachineBranchProbabilityInfo.cpp | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/lib/CodeGen/MachineBranchProbabilityInfo.cpp b/lib/CodeGen/MachineBranchProbabilityInfo.cpp index c13fa6b..9874037 100644 --- a/lib/CodeGen/MachineBranchProbabilityInfo.cpp +++ b/lib/CodeGen/MachineBranchProbabilityInfo.cpp @@ -55,12 +55,8 @@ MachineBranchProbabilityInfo::getEdgeWeight(MachineBasicBlock *Src, bool MachineBranchProbabilityInfo::isEdgeHot(MachineBasicBlock *Src, MachineBasicBlock *Dst) const { // Hot probability is at least 4/5 = 80% - uint32_t Weight = getEdgeWeight(Src, Dst); - uint32_t Sum = getSumForBlock(Src); - - // FIXME: Implement BranchProbability::compare then change this code to - // compare this BranchProbability against a static "hot" BranchProbability. - return (uint64_t)Weight * 5 > (uint64_t)Sum * 4; + // FIXME: Compare against a static "hot" BranchProbability. + return getEdgeProbability(Src, Dst) > BranchProbability(4, 5); } MachineBasicBlock * @@ -84,8 +80,7 @@ MachineBranchProbabilityInfo::getHotSucc(MachineBasicBlock *MBB) const { } } - // FIXME: Use BranchProbability::compare. - if ((uint64_t)MaxWeight * 5 >= (uint64_t)Sum * 4) + if (BranchProbability(MaxWeight, Sum) >= BranchProbability(4, 5)) return MaxSucc; return 0; |