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LibJS/JIT: Use the x86_64 setcc instruction to remove a branch

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Bastiaan van der Plaat 2023-11-13 17:41:05 +01:00 • committed by Andreas Kling
parent 1d76738dde
commit d3b3e49e19
3 changed files with 17 additions and 16 deletions
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Userland/Libraries/LibJS/Runtime/Value.h
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@ -104,6 +104,7 @@ static_assert((EMPTY_TAG & IS_NULLISH_EXTRACT_PATTERN) != IS_NULLISH_PATTERN);
static constexpr u64 TAG_EXTRACTION = 0xFFFF000000000000;
static constexpr u64 TAG_SHIFT = 48;
static constexpr u64 SHIFTED_BOOLEAN_TAG = BOOLEAN_TAG << TAG_SHIFT;
static constexpr u64 SHIFTED_INT32_TAG = INT32_TAG << TAG_SHIFT;
static constexpr u64 SHIFTED_IS_CELL_PATTERN = IS_CELL_PATTERN << TAG_SHIFT;