6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-08-22 10:29:35 +00:00
Code Issues Projects Releases Wiki Activity

simplify this logic.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60189 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2008-11-27 22:46:09 +00:00
parent d2f0db1b19
commit cb03f8547d
1 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
lib/Transforms/Scalar/DCE.cpp
View File

@ -39,12 +39,14 @@ namespace {
DeadInstElimination() : BasicBlockPass(intptr_t(&ID)) {}
virtual bool runOnBasicBlock(BasicBlock &BB) {
bool Changed = false;
for (BasicBlock::iterator DI = BB.begin(); DI != BB.end(); )
if (dceInstruction(DI)) {
for (BasicBlock::iterator DI = BB.begin(); DI != BB.end(); ) {
Instruction *Inst = DI++;
if (isInstructionTriviallyDead(Inst)) {
Inst->eraseFromParent();
Changed = true;
++DIEEliminated;
} else
++DI;
}
}
return Changed;
}