diff options
Diffstat (limited to 'src/passes/OptimizeInstructions.cpp')
| -rw-r--r-- | src/passes/OptimizeInstructions.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/passes/OptimizeInstructions.cpp b/src/passes/OptimizeInstructions.cpp index 5194c8ce7..37fb37ace 100644 --- a/src/passes/OptimizeInstructions.cpp +++ b/src/passes/OptimizeInstructions.cpp @@ -422,7 +422,8 @@ struct OptimizeInstructions : public WalkerPass<PostWalker<OptimizeInstructions, if (extraShifts == 0) { if (auto* load = getFallthrough(ext)->dynCast<Load>()) { // pattern match a load of 8 bits and a sign extend using a shl of 24 then shr_s of 24 as well, etc. - if ((load->bytes == 1 && bits == 8) || (load->bytes == 2 && bits == 16)) { + if (LoadUtils::canBeSigned(load) && + ((load->bytes == 1 && bits == 8) || (load->bytes == 2 && bits == 16))) { // if the value falls through, we can't alter the load, as it might be captured in a tee if (load->signed_ == true || load == ext) { load->signed_ = true; |