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Minor optimisation (mov reg, reg)

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Fabian 2020-12-31 19:14:33 -06:00
parent b859ce5085
commit 849b9d184f
1 changed files with 12 additions and 6 deletions
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18
src/rust/codegen.rs
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@ -344,18 +344,24 @@ pub fn gen_modrm_resolve(ctx: &mut JitContext, modrm_byte: ModrmByte) {
pub fn gen_set_reg8_r(ctx: &mut JitContext, dest: u32, src: u32) {
// generates: reg8[r_dest] = reg8[r_src]
gen_get_reg8(ctx, src);
gen_set_reg8(ctx, dest);
if src != dest {
gen_get_reg8(ctx, src);
gen_set_reg8(ctx, dest);
}
}
pub fn gen_set_reg16_r(ctx: &mut JitContext, dest: u32, src: u32) {
// generates: reg16[r_dest] = reg16[r_src]
gen_get_reg16(ctx, src);
gen_set_reg16(ctx, dest);
if src != dest {
gen_get_reg16(ctx, src);
gen_set_reg16(ctx, dest);
}
}
pub fn gen_set_reg32_r(ctx: &mut JitContext, dest: u32, src: u32) {
// generates: reg32[r_dest] = reg32[r_src]
gen_get_reg32(ctx, src);
gen_set_reg32(ctx, dest);
if src != dest {
gen_get_reg32(ctx, src);
gen_set_reg32(ctx, dest);
}
}
pub fn gen_modrm_resolve_safe_read8(ctx: &mut JitContext, modrm_byte: ModrmByte) {