replica
/
hanchenye-llvm-project
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

BBVectorize: isa/cast cleanup in getInstructionTypes 

Profiling suggests that getInstructionTypes is performance-sensitive,
this cleans up some double-casting in that function in favor of
using dyn_cast.

No functionality change intended.

llvm-svn: 174857
This commit is contained in:
Hal Finkel 2013-02-11 05:29:48 +00:00
parent c1cc166948
commit dd4bc66593
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
llvm/lib/Transforms/Vectorize/BBVectorize.cpp
View File

@ -466,18 +466,18 @@ namespace {
static inline void getInstructionTypes(Instruction *I,
Type *&T1, Type *&T2) {
if (isa<StoreInst>(I)) {
if (StoreInst *SI = dyn_cast<StoreInst>(I)) {
// For stores, it is the value type, not the pointer type that matters
// because the value is what will come from a vector register.
Value *IVal = cast<StoreInst>(I)->getValueOperand();
Value *IVal = SI->getValueOperand();
T1 = IVal->getType();
} else {
T1 = I->getType();
}
if (I->isCast())
T2 = cast<CastInst>(I)->getSrcTy();
if (CastInst *CI = dyn_cast<CastInst>(I))
T2 = CI->getSrcTy();
else
T2 = T1;