diff options
Diffstat (limited to 'lib/Transforms')
-rw-r--r-- | lib/Transforms/IPO/GlobalOpt.cpp | 19 |
1 files changed, 4 insertions, 15 deletions
diff --git a/lib/Transforms/IPO/GlobalOpt.cpp b/lib/Transforms/IPO/GlobalOpt.cpp index b995a3d286..63bc03d787 100644 --- a/lib/Transforms/IPO/GlobalOpt.cpp +++ b/lib/Transforms/IPO/GlobalOpt.cpp @@ -2045,25 +2045,14 @@ static bool isSimpleEnoughPointerToCommit(Constant *C, LLVMContext &Context) { if (!GV->hasDefinitiveInitializer()) return false; - gep_type_iterator GEPI = gep_type_begin(CE), E = gep_type_end(CE); - User::op_iterator OI = next(CE->op_begin()); - // The first index must be zero. - ConstantInt *CI = dyn_cast<ConstantInt>(*OI); + ConstantInt *CI = dyn_cast<ConstantInt>(*next(CE->op_begin())); if (!CI || !CI->isZero()) return false; - ++GEPI; - ++OI; // The remaining indices must be compile-time known integers within the - // bounds of the corresponding static array types. - for (; GEPI != E; ++GEPI, ++OI) { - CI = dyn_cast<ConstantInt>(*OI); - if (!CI) return false; - if (const ArrayType *ATy = dyn_cast<ArrayType>(*GEPI)) - if (CI->getValue().getActiveBits() > 64 || - CI->getZExtValue() >= ATy->getNumElements()) - return false; - } + // notional bounds of the corresponding static array types. + if (!CE->isGEPWithNoNotionalOverIndexing()) + return false; return ConstantFoldLoadThroughGEPConstantExpr(GV->getInitializer(), CE, Context); |