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Diffstat (limited to 'src/passes/OptimizeInstructions.cpp')
| -rw-r--r-- | src/passes/OptimizeInstructions.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/passes/OptimizeInstructions.cpp b/src/passes/OptimizeInstructions.cpp index 2f1b6b6a4..e9cf3baaa 100644 --- a/src/passes/OptimizeInstructions.cpp +++ b/src/passes/OptimizeInstructions.cpp @@ -416,8 +416,9 @@ struct OptimizeInstructions { // -x + y ==> y - x // where x, y are floating points - Expression* x; - if (matches(curr, binary(Add, unary(Neg, any(&x)), any()))) { + Expression *x, *y; + if (matches(curr, binary(Add, unary(Neg, any(&x)), any(&y))) && + canReorder(x, y)) { curr->op = Abstract::getBinary(curr->type, Sub); curr->left = x; std::swap(curr->left, curr->right); |