6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-11 21:38:19 +00:00
Code Issues Projects Releases Wiki Activity

add some DEBUG's.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121711 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2010-12-13 19:55:30 +00:00
parent c266600bec
commit 94c58a0906
1 changed files with 8 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

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

@ -1905,10 +1905,16 @@ static bool SimplifyBranchOnICmpChain(BranchInst *BI, const TargetData *TD) {
BasicBlock *BB = BI->getParent(); BasicBlock *BB = BI->getParent();
DEBUG(dbgs() << "CONVERTING 'icmp' CHAIN with " << Values.size()
<< " cases into SWITCH. BB is:\n" << *BB);
// If there are any extra values that couldn't be folded into the switch // If there are any extra values that couldn't be folded into the switch
// then we evaluate them with an explicit branch first. Split the block // then we evaluate them with an explicit branch first. Split the block
// right before the condbr to handle it. // right before the condbr to handle it.
if (ExtraCase) { if (ExtraCase) {
DEBUG(dbgs() << " ** 'icmp' chain unhandled condition: " << *ExtraCase
<< '\n');
BasicBlock *NewBB = BB->splitBasicBlock(BI, "switch.early.test"); BasicBlock *NewBB = BB->splitBasicBlock(BI, "switch.early.test");
// Remove the uncond branch added to the old block. // Remove the uncond branch added to the old block.
TerminatorInst *OldTI = BB->getTerminator(); TerminatorInst *OldTI = BB->getTerminator();
@ -2361,7 +2367,7 @@ bool SimplifyCFGOpt::SimplifyCondBranch(BranchInst *BI) {
// branches to us and one of our successors, fold the setcc into the // branches to us and one of our successors, fold the setcc into the
// predecessor and use logical operations to pick the right destination. // predecessor and use logical operations to pick the right destination.
if (FoldBranchToCommonDest(BI)) if (FoldBranchToCommonDest(BI))
return SimplifyCFG(BB) | true; return true;
// Scan predecessor blocks for conditional branches. // Scan predecessor blocks for conditional branches.
for (pred_iterator PI = pred_begin(BB), E = pred_end(BB); PI != E; ++PI) for (pred_iterator PI = pred_begin(BB), E = pred_end(BB); PI != E; ++PI)
@ -2413,8 +2419,7 @@ bool SimplifyCFGOpt::run(BasicBlock *BB) {
if (BI->isUnconditional()) { if (BI->isUnconditional()) {
if (SimplifyUncondBranch(BI)) return true; if (SimplifyUncondBranch(BI)) return true;
} else { } else {
if (SimplifyCondBranch(BI)) if (SimplifyCondBranch(BI)) return true;
return true;
} }
} else if (ReturnInst *RI = dyn_cast<ReturnInst>(BB->getTerminator())) { } else if (ReturnInst *RI = dyn_cast<ReturnInst>(BB->getTerminator())) {
if (SimplifyReturn(RI)) return true; if (SimplifyReturn(RI)) return true;