projects
/
platform
/
upstream
/
llvm.git
/ commitdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
| commitdiff |
tree
raw
|
patch
| inline |
side by side
(parent:
46a1dd4
)
[SCEV][NFC] Simplify check with CI->isZero() exit condition
author
Max Kazantsev
<mkazantsev@azul.com>
Thu, 14 Oct 2021 07:06:52 +0000
(14:06 +0700)
committer
Max Kazantsev
<mkazantsev@azul.com>
Thu, 14 Oct 2021 07:06:52 +0000
(14:06 +0700)
Replace check with
if ((ExitIfTrue && CI->isZero()) || (!ExitIfTrue && CI->isOne()))
with equivalent and simpler version
if (ExitIfTrue == CI->isZero())
llvm/lib/Analysis/ScalarEvolution.cpp
patch
|
blob
|
history
diff --git
a/llvm/lib/Analysis/ScalarEvolution.cpp
b/llvm/lib/Analysis/ScalarEvolution.cpp
index
71b67dc
..
ec55c92
100644
(file)
--- a/
llvm/lib/Analysis/ScalarEvolution.cpp
+++ b/
llvm/lib/Analysis/ScalarEvolution.cpp
@@
-7829,7
+7829,7
@@
ScalarEvolution::computeBackedgeTakenCount(const Loop *L,
if (auto *BI = dyn_cast<BranchInst>(ExitBB->getTerminator()))
if (auto *CI = dyn_cast<ConstantInt>(BI->getCondition())) {
bool ExitIfTrue = !L->contains(BI->getSuccessor(0));
- if (
(ExitIfTrue && CI->isZero()) || (!ExitIfTrue && CI->isOne()
))
+ if (
ExitIfTrue == CI->isZero(
))
continue;
}