6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-13 20:32:21 +00:00
Code Issues Projects Releases Wiki Activity

Fix a bug that occurs when the constant value is the result of an invoke. In

Browse Source 
particular, invoke ret values are only live in the normal dest of the invoke
not in the unwind dest.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17108 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-10-18 01:21:17 +00:00
parent 963869e41a
commit 28e792c232
1 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
lib/Transforms/Utils/PromoteMemoryToRegister.cpp
View File

@ -95,10 +95,12 @@ namespace {
void run();
/// dominates - Return true if BB1 dominates BB2 using the DT.
/// dominates - Return true if I1 dominates I2 using the DominatorTree.
///
bool dominates(BasicBlock *BB1, BasicBlock *BB2) const {
return DT[BB1]->dominates(DT[BB2]);
bool dominates(Instruction *I1, Instruction *I2) const {
if (InvokeInst *II = dyn_cast<InvokeInst>(I1))
I1 = II->getNormalDest()->begin();
return DT[I1->getParent()]->dominates(DT[I2->getParent()]);
}
private:
@ -339,8 +341,7 @@ void PromoteMem2Reg::run() {
for (unsigned i = 0, e = PNs.size(); i != e; ++i)
if (PNs[i]) {
if (Value *V = hasConstantValue(PNs[i])) {
if (!isa<Instruction>(V) ||
dominates(cast<Instruction>(V)->getParent(), I->first)) {
if (!isa<Instruction>(V) || dominates(cast<Instruction>(V), PNs[i])) {
PNs[i]->replaceAllUsesWith(V);
PNs[i]->eraseFromParent();
PNs[i] = 0;