diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Transforms/IPO/ArgumentPromotion.cpp | 31 |
1 files changed, 1 insertions, 30 deletions
diff --git a/lib/Transforms/IPO/ArgumentPromotion.cpp b/lib/Transforms/IPO/ArgumentPromotion.cpp index 1c764878b6..fe945c408d 100644 --- a/lib/Transforms/IPO/ArgumentPromotion.cpp +++ b/lib/Transforms/IPO/ArgumentPromotion.cpp @@ -86,37 +86,8 @@ Pass *llvm::createArgumentPromotionPass() { bool ArgPromotion::run(Module &M) { bool Changed = false; for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) - if (I->hasInternalLinkage()) { + if (I->hasInternalLinkage()) WorkList.insert(I); - - // If there are any constant pointer refs pointing to this function, - // eliminate them now if possible. - ConstantPointerRef *CPR = 0; - for (Value::use_iterator UI = I->use_begin(), E = I->use_end(); UI != E; - ++UI) - if ((CPR = dyn_cast<ConstantPointerRef>(*UI))) - break; // Found one! - if (CPR) { - // See if we can transform all users to use the function directly. - while (!CPR->use_empty()) { - User *TheUser = CPR->use_back(); - if (!isa<Constant>(TheUser) && !isa<GlobalVariable>(TheUser)) { - Changed = true; - TheUser->replaceUsesOfWith(CPR, I); - } else { - // We won't be able to eliminate all users. :( - WorkList.erase(I); // Minor efficiency win. - break; - } - } - - // If we nuked all users of the CPR, kill the CPR now! - if (CPR->use_empty()) { - CPR->destroyConstant(); - Changed = true; - } - } - } while (!WorkList.empty()) { Function *F = *WorkList.begin(); |