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| author | wolfbeast <mcwerewolf@gmail.com> | 2018-10-31 17:30:52 +0100 |
|---|---|---|
| committer | wolfbeast <mcwerewolf@gmail.com> | 2018-10-31 17:30:52 +0100 |
| commit | 1cfcf17a10898f8c429021c4f78bd9ae61935c52 (patch) | |
| tree | 42b7dc1b5534c99baae9be5d01493d56098481b7 /js | |
| parent | 2c045d9c55674156b3881efb1cfa9bff41809105 (diff) | |
| download | uxp-1cfcf17a10898f8c429021c4f78bd9ae61935c52.tar.gz | |
Don't mark MGetFirstDollarIndex as movable.
Diffstat (limited to 'js')
| -rw-r--r-- | js/src/jit/MIR.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/js/src/jit/MIR.h b/js/src/jit/MIR.h index 6ec05af764..b2e84322f9 100644 --- a/js/src/jit/MIR.h +++ b/js/src/jit/MIR.h @@ -8272,7 +8272,10 @@ class MGetFirstDollarIndex : MUnaryInstruction(str) { setResultType(MIRType::Int32); - setMovable(); + + // Codegen assumes string length > 0 but that's not guaranteed in RegExp. + // Don't allow LICM to move this. + MOZ_ASSERT(!isMovable()); } public: |