[PATCH] D157313: [ValueTracking] Check likely to be canonicalized constant operands first in ; NFC
Noah Goldstein via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Aug 9 12:46:17 PDT 2023
This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG035aaae45cf4: [ValueTracking] Check likely to be canonicalized constant operands first in… (authored by goldstein.w.n).
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D157313/new/
https://reviews.llvm.org/D157313
Files:
llvm/lib/Analysis/ValueTracking.cpp
Index: llvm/lib/Analysis/ValueTracking.cpp
===================================================================
--- llvm/lib/Analysis/ValueTracking.cpp
+++ llvm/lib/Analysis/ValueTracking.cpp
@@ -2061,8 +2061,8 @@
case Instruction::And:
if (OrZero) {
// A power of two and'd with anything is a power of two or zero.
- if (isKnownToBeAPowerOfTwo(I->getOperand(0), /*OrZero*/ true, Depth, Q) ||
- isKnownToBeAPowerOfTwo(I->getOperand(1), /*OrZero*/ true, Depth, Q))
+ if (isKnownToBeAPowerOfTwo(I->getOperand(1), /*OrZero*/ true, Depth, Q) ||
+ isKnownToBeAPowerOfTwo(I->getOperand(0), /*OrZero*/ true, Depth, Q))
return true;
// X & (-X) is always a power of two or zero.
if (match(I->getOperand(0), m_Neg(m_Specific(I->getOperand(1)))) ||
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