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ivica.bogosavljevic authored
MIPS64: Fix Word32Compare turbofan operator implementation when comparing signed with unsigned operand MIPS64 doesn't support Word32 compare instructions. Instead it relies that the values in registers are correctly sign-extended and uses Word64 comparison instead. This behavior is correct in most cases, but doesn't work when comparing signed with unsigned operands. The solution proposed here tries to match a comparison of signed with unsigned operand, and perform Word32Compare simulation only in those cases. Unfortunately, the solution is not complete because it might skip cases where Word32 compare simulation is needed, so basically it is a hack. BUG= TEST=mjsunit/compiler/uint32 Review-Url: https://codereview.chromium.org/2391393003 Cr-Commit-Position: refs/heads/master@{#40398}
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code-generator-mips64.cc | ||
instruction-codes-mips64.h | ||
instruction-scheduler-mips64.cc | ||
instruction-selector-mips64.cc |