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inline function that is only called once

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Fabian 2022-11-05 21:27:40 -06:00
parent 7fb9654920
commit cdaf8dca3d
1 changed files with 30 additions and 33 deletions
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63
src/rust/codegen.rs
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@ -1754,7 +1754,36 @@ pub fn gen_getcf(ctx: &mut JitContext, negate: ConditionNegate) {
},
&Instruction::Other => {
gen_profiler_stat_increment(ctx.builder, profiler::stat::CONDITION_UNOPTIMISED);
gen_getcf_unoptimised(ctx);
gen_get_flags_changed(ctx.builder);
let flags_changed = ctx.builder.tee_new_local();
ctx.builder.const_i32(FLAG_CARRY);
ctx.builder.and_i32();
ctx.builder.if_i32();
ctx.builder.get_local(&flags_changed);
ctx.builder.const_i32(31);
ctx.builder.shr_s_i32();
ctx.builder.free_local(flags_changed);
let sub_mask = ctx.builder.set_new_local();
gen_get_last_result(ctx.builder, &ctx.previous_instruction);
ctx.builder.get_local(&sub_mask);
ctx.builder.xor_i32();
gen_get_last_op1(ctx.builder, &ctx.previous_instruction);
ctx.builder.get_local(&sub_mask);
ctx.builder.xor_i32();
ctx.builder.ltu_i32();
ctx.builder.else_();
gen_get_flags(ctx.builder);
ctx.builder.const_i32(FLAG_CARRY);
ctx.builder.and_i32();
ctx.builder.block_end();
ctx.builder.free_local(sub_mask);
if negate == ConditionNegate::True {
ctx.builder.eqz_i32();
@ -1763,38 +1792,6 @@ pub fn gen_getcf(ctx: &mut JitContext, negate: ConditionNegate) {
}
}
pub fn gen_getcf_unoptimised(ctx: &mut JitContext) {
gen_get_flags_changed(ctx.builder);
let flags_changed = ctx.builder.tee_new_local();
ctx.builder.const_i32(FLAG_CARRY);
ctx.builder.and_i32();
ctx.builder.if_i32();
ctx.builder.get_local(&flags_changed);
ctx.builder.const_i32(31);
ctx.builder.shr_s_i32();
ctx.builder.free_local(flags_changed);
let sub_mask = ctx.builder.set_new_local();
gen_get_last_result(ctx.builder, &ctx.previous_instruction);
ctx.builder.get_local(&sub_mask);
ctx.builder.xor_i32();
gen_get_last_op1(ctx.builder, &ctx.previous_instruction);
ctx.builder.get_local(&sub_mask);
ctx.builder.xor_i32();
ctx.builder.ltu_i32();
ctx.builder.else_();
gen_get_flags(ctx.builder);
ctx.builder.const_i32(FLAG_CARRY);
ctx.builder.and_i32();
ctx.builder.block_end();
ctx.builder.free_local(sub_mask);
}
pub fn gen_getsf(ctx: &mut JitContext, negate: ConditionNegate) {
match &ctx.previous_instruction {
Instruction::Cmp { opsize, .. }