Currently, Macro::Assembler(Address dst, intprt_t src) on x64 uses an intermediate scratch register to store the 64-bit immediate.
But, if the value fits into 32-bits, we can also explicitly use the 32-bit immediate overload, which saves an instruction and a register use.
But, if the value fits into 32-bits, we can also explicitly use the 32-bit immediate overload, which saves an instruction and a register use.
- relates to
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JDK-8319406 x86: Shorter movptr(reg, imm) for 32-bit immediates
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- Resolved
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- Closed
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