6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-07-23 01:30:19 +00:00
Code Issues Projects Releases Wiki Activity

PGO: create metadata for switch only if it has more than one targets.

Browse Source 
When all cases of a switch statement are dead, the weights vector only has one
element, and we will get an ssertion failure when calling createBranchWeights.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165759 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Manman Ren 2012-10-11 22:28:34 +00:00
parent aa79721fce
commit d61d1eb165
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
lib/Transforms/Utils/SimplifyCFG.cpp
View File

@ -695,7 +695,7 @@ SimplifyEqualityComparisonWithOnlyPredecessor(TerminatorInst *TI,
SI->removeCase(i);
}
}
if (HasWeight)
if (HasWeight && Weights.size() >= 2)
SI->setMetadata(LLVMContext::MD_prof,
MDBuilder(SI->getParent()->getContext()).
createBranchWeights(Weights));