5 commits

Author	SHA1	Message	Date
Andreas Kling	5b198ccf32	LibJS+LibJIT: Don't turn patchable movs into xors with self ... If a mov instruction is meant to be patchable, we don't want to rewrite it as a xor, since that removes the slot where we'd patch in the right value later. Also, make sure to set both size bits in the REX prefix for xoring a register with itself.	2023-10-27 19:07:22 +02:00
Andreas Kling	6f0baea594	LibJIT: Add jump_if_zero() and jump_if_not_zero() to Assembler ... These can use test reg,reg on x86 which gives us a shorter encoding.	2023-10-27 19:07:22 +02:00
Andreas Kling	fb483f1950	LibJIT: Emit 8-bit displacement variants for mov when possible	2023-10-27 19:07:22 +02:00
Andreas Kling	d09bc54586	LibJIT: Encode mov(reg, 0) as xor(reg, reg) ... This uses less space for the same result. :^)	2023-10-27 19:07:22 +02:00
Andreas Kling	5b87d26027	LibJIT+LibJS: Move JIT::Assembler into a new LibJIT library ... This will allow other parts of the system to generate machine code at runtime. :^)	2023-10-27 19:07:22 +02:00

Renamed from Userland/Libraries/LibJS/JIT/Assembler.h (Browse further)