diff options
Diffstat (limited to 'lib/Transforms/IPO/GlobalOpt.cpp')
| -rw-r--r-- | lib/Transforms/IPO/GlobalOpt.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/Transforms/IPO/GlobalOpt.cpp b/lib/Transforms/IPO/GlobalOpt.cpp index 9d0b96b7a3..2e869e6e45 100644 --- a/lib/Transforms/IPO/GlobalOpt.cpp +++ b/lib/Transforms/IPO/GlobalOpt.cpp @@ -350,6 +350,7 @@ static bool CleanupConstantGlobalUsers(Value *V, Constant *Init) { // and will invalidate our notion of what Init is. Constant *SubInit = 0; if (!isa<ConstantExpr>(GEP->getOperand(0))) { + // FIXME: use TargetData/TargetLibraryInfo for smarter constant folding. ConstantExpr *CE = dyn_cast_or_null<ConstantExpr>(ConstantFoldInstruction(GEP)); if (Init && CE && CE->getOpcode() == Instruction::GetElementPtr) @@ -833,6 +834,7 @@ static bool OptimizeAwayTrappingUsesOfLoads(GlobalVariable *GV, Constant *LV) { static void ConstantPropUsersOf(Value *V) { for (Value::use_iterator UI = V->use_begin(), E = V->use_end(); UI != E; ) if (Instruction *I = dyn_cast<Instruction>(*UI++)) + // FIXME: use TargetData/TargetLibraryInfo for smarter constant folding. if (Constant *NewC = ConstantFoldInstruction(I)) { I->replaceAllUsesWith(NewC); @@ -1936,7 +1938,8 @@ bool GlobalOpt::OptimizeGlobalVars(Module &M) { if (GV->hasInitializer()) if (ConstantExpr *CE = dyn_cast<ConstantExpr>(GV->getInitializer())) { TargetData *TD = getAnalysisIfAvailable<TargetData>(); - Constant *New = ConstantFoldConstantExpression(CE, TD); + TargetLibraryInfo *TLI = &getAnalysis<TargetLibraryInfo>(); + Constant *New = ConstantFoldConstantExpression(CE, TD, TLI); if (New && New != CE) GV->setInitializer(New); } @@ -2542,7 +2545,7 @@ static bool EvaluateFunction(Function *F, Constant *&RetVal, if (!CurInst->use_empty()) { if (ConstantExpr *CE = dyn_cast<ConstantExpr>(InstResult)) - InstResult = ConstantFoldConstantExpression(CE, TD); + InstResult = ConstantFoldConstantExpression(CE, TD, TLI); Values[CurInst] = InstResult; } |