Certain ops are unsafe if the register passed is esp..edi (will instead test/set the ).
compare32/test8/test32 Call setCC, which sets an 8-bit register - we can fix this by adding a couple of xchg instructions.
branchTest8 with a register argument is also affected. In all cases this is currently used this is testing a value that is correct to 32 or more bits, so we can simply switch these to branchTest32 & remove the corresponding branchTest8 (this is desirable anyway, since the 32-bit form is cheaper to implement on platforms that don't have an 8-bit compare instruction).
This fixes the remaining fast/js failures with the DFG JIT 32_64.
Created attachment 110773 [details]
Attachment 110773 [details] did not pass style-queue:
Total errors found: 1 in 6 files
If any of these errors are false positives, please file a bug against check-webkit-style.
Fixed in r97331