RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-01-31 20:51:52 +01:00
Code Issues Projects Releases Wiki Activity

[SimplifyLibCalls] Erase replaced instructions

Browse Source 
After RAUWing an instruction, also erase it. This makes sure we
don't perform extra InstCombine iterations to clean up the garbage.
This commit is contained in:
Nikita Popov 2020-03-29 19:10:19 +02:00
parent fba73700fd
commit 6583fd399c
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
lib/Transforms/Utils/SimplifyLibCalls.cpp
View File

@ -832,6 +832,7 @@ Value *LibCallSimplifier::optimizeStrStr(CallInst *CI, IRBuilderBase &B) {
B.CreateICmp(Old->getPredicate(), StrNCmp,
ConstantInt::getNullValue(StrNCmp->getType()), "cmp");
replaceAllUsesWith(Old, Cmp);
eraseFromParent(Old);
}
return CI;
}
@ -2170,8 +2171,10 @@ Value *LibCallSimplifier::optimizeSinCosPi(CallInst *CI, IRBuilderBase &B) {
auto replaceTrigInsts = [this](SmallVectorImpl<CallInst *> &Calls,
Value *Res) {
for (CallInst *C : Calls)
for (CallInst *C : Calls) {
replaceAllUsesWith(C, Res);
eraseFromParent(C);
}
};
replaceTrigInsts(SinCalls, Sin);