From cd62bf58219d78e9557a20eddb886c7cc582feb7 Mon Sep 17 00:00:00 2001 From: Chad Rosier Date: Fri, 29 Apr 2016 21:12:31 +0000 Subject: [InstCombine] Determine the result of a select based on a dominating condition. Differential Revision: http://reviews.llvm.org/D19550 llvm-svn: 268104 --- llvm/lib/Analysis/ValueTracking.cpp | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'llvm/lib/Analysis/ValueTracking.cpp') diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp index feddbafa..4097322 100644 --- a/llvm/lib/Analysis/ValueTracking.cpp +++ b/llvm/lib/Analysis/ValueTracking.cpp @@ -3941,7 +3941,10 @@ Optional llvm::isImpliedCondition(Value *LHS, Value *RHS, unsigned Depth, AssumptionCache *AC, const Instruction *CxtI, const DominatorTree *DT) { - assert(LHS->getType() == RHS->getType() && "mismatched type"); + // A mismatch occurs when we compare a scalar cmp to a vector cmp, for example. + if (LHS->getType() != RHS->getType()) + return None; + Type *OpTy = LHS->getType(); assert(OpTy->getScalarType()->isIntegerTy(1)); -- cgit v1.1