[llvm] 0a362f1 - [IR] Mark mul and ashr const exprs as undesirable
Nikita Popov via llvm-commits
llvm-commits at lists.llvm.org
Tue Nov 7 01:42:22 PST 2023
Author: Nikita Popov
Date: 2023-11-07T10:42:14+01:00
New Revision: 0a362f12ec60a49a054befec8620a8e69523af54
URL: https://github.com/llvm/llvm-project/commit/0a362f12ec60a49a054befec8620a8e69523af54
DIFF: https://github.com/llvm/llvm-project/commit/0a362f12ec60a49a054befec8620a8e69523af54.diff
LOG: [IR] Mark mul and ashr const exprs as undesirable
These will no longer be created by default, but can still be
created explicitly.
Added:
Modified:
llvm/lib/IR/Constants.cpp
Removed:
################################################################################
diff --git a/llvm/lib/IR/Constants.cpp b/llvm/lib/IR/Constants.cpp
index 4e480691558f043..0005b2f2dc54389 100644
--- a/llvm/lib/IR/Constants.cpp
+++ b/llvm/lib/IR/Constants.cpp
@@ -2133,13 +2133,13 @@ bool ConstantExpr::isDesirableBinOp(unsigned Opcode) {
case Instruction::FRem:
case Instruction::And:
case Instruction::Or:
+ case Instruction::Mul:
+ case Instruction::AShr:
return false;
case Instruction::Add:
case Instruction::Sub:
- case Instruction::Mul:
case Instruction::Shl:
case Instruction::LShr:
- case Instruction::AShr:
case Instruction::Xor:
return true;
default:
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