Normalize MBB's successors' probabilities in several locations.
This patch adds some missing calls to MBB::normalizeSuccProbs() in several
locations where it should be called. Those places are found by checking if the
sum of successors' probabilities is approximate one in MachineBlockPlacement
pass with some instrumented code (not in this patch).
Differential revision: http://reviews.llvm.org/D15259
llvm-svn: 255455
diff --git a/llvm/lib/Target/AArch64/AArch64ConditionalCompares.cpp b/llvm/lib/Target/AArch64/AArch64ConditionalCompares.cpp
index 920f409..df1320f 100644
--- a/llvm/lib/Target/AArch64/AArch64ConditionalCompares.cpp
+++ b/llvm/lib/Target/AArch64/AArch64ConditionalCompares.cpp
@@ -567,8 +567,8 @@
// All CmpBB instructions are moved into Head, and CmpBB is deleted.
// Update the CFG first.
updateTailPHIs();
- Head->removeSuccessor(CmpBB);
- CmpBB->removeSuccessor(Tail);
+ Head->removeSuccessor(CmpBB, true);
+ CmpBB->removeSuccessor(Tail, true);
Head->transferSuccessorsAndUpdatePHIs(CmpBB);
DebugLoc TermDL = Head->getFirstTerminator()->getDebugLoc();
TII->RemoveBranch(*Head);