[llvm] r317514 - Fix comment /NFC
Xinliang David Li via llvm-commits
llvm-commits at lists.llvm.org
Mon Nov 6 13:57:51 PST 2017
Author: davidxl
Date: Mon Nov 6 13:57:51 2017
New Revision: 317514
URL: http://llvm.org/viewvc/llvm-project?rev=317514&view=rev
Log:
Fix comment /NFC
Modified:
llvm/trunk/lib/Transforms/Scalar/JumpThreading.cpp
Modified: llvm/trunk/lib/Transforms/Scalar/JumpThreading.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/JumpThreading.cpp?rev=317514&r1=317513&r2=317514&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/JumpThreading.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/JumpThreading.cpp Mon Nov 6 13:57:51 2017
@@ -192,11 +192,12 @@ JumpThreadingPass::JumpThreadingPass(int
// P(cond == true ) = P(A) + P(cond == true | B) * P(B)
//
// which gives us:
-// P(A) <= P(c == true), i.e.
+// P(A) is less than P(cond == true), i.e.
// P(t == true) <= P(cond == true)
//
-// In other words, if we know P(cond == true), we know that P(t == true)
-// can not be greater than 1%.
+// In other words, if we know P(cond == true) is unlikely, we know
+// that P(t == true) is also unlikely.
+//
static void updatePredecessorProfileMetadata(PHINode *PN, BasicBlock *BB) {
BranchInst *CondBr = dyn_cast<BranchInst>(BB->getTerminator());
if (!CondBr)
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