From 91bbe237167bf84ce41d01eff3c028ff2b10be26 Mon Sep 17 00:00:00 2001 From: Benjamin Kramer Date: Fri, 28 Oct 2011 11:14:31 +0000 Subject: [PATCH] Use BranchProbability compare operators. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143190 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/MachineBranchProbabilityInfo.cpp | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/lib/CodeGen/MachineBranchProbabilityInfo.cpp b/lib/CodeGen/MachineBranchProbabilityInfo.cpp index c13fa6bc533..987403796f4 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; -- 2.11.0