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optimise get_last_op1 (for cmp32)

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Fabian 2022-11-04 11:52:34 -06:00
parent 5a7c946e83
commit 1d55116779
1 changed files with 21 additions and 14 deletions
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35
src/rust/codegen.rs
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@ -354,8 +354,15 @@ fn gen_get_last_result(builder: &mut WasmBuilder, previous_instruction: &Instruc
fn gen_get_last_op_size(builder: &mut WasmBuilder) {
builder.load_fixed_i32(global_pointers::last_op_size as u32);
}
fn gen_get_last_op1(builder: &mut WasmBuilder) {
builder.load_fixed_i32(global_pointers::last_op1 as u32);
fn gen_get_last_op1(builder: &mut WasmBuilder, previous_instruction: &Instruction) {
match previous_instruction {
Instruction::Cmp {
dest: InstructionOperandDest::WasmLocal(l),
source: _,
opsize: OPSIZE_32,
} => builder.get_local(&l),
_ => builder.load_fixed_i32(global_pointers::last_op1 as u32),
}
}
pub fn gen_get_page_fault(builder: &mut WasmBuilder) {
@ -1646,7 +1653,7 @@ pub fn gen_getcf(ctx: &mut JitContext, negate: ConditionNegate) {
// TODO: add/sub
gen_profiler_stat_increment(ctx.builder, profiler::stat::CONDITION_OPTIMISED);
if source == &InstructionOperand::Other || *opsize != OPSIZE_32 {
gen_get_last_op1(ctx.builder);
gen_get_last_op1(ctx.builder, &ctx.previous_instruction);
gen_get_last_result(ctx.builder, &ctx.previous_instruction);
}
else {
@ -1655,7 +1662,7 @@ pub fn gen_getcf(ctx: &mut JitContext, negate: ConditionNegate) {
ctx.builder.get_local(l);
},
InstructionOperandDest::Other => {
gen_get_last_op1(ctx.builder);
gen_get_last_op1(ctx.builder, &ctx.previous_instruction);
},
}
match source {
@ -1704,7 +1711,7 @@ pub fn gen_getcf_unoptimised(ctx: &mut JitContext) {
ctx.builder.get_local(&sub_mask);
ctx.builder.xor_i32();
gen_get_last_op1(ctx.builder);
gen_get_last_op1(ctx.builder, &ctx.previous_instruction);
ctx.builder.get_local(&sub_mask);
ctx.builder.xor_i32();
@ -1772,7 +1779,7 @@ pub fn gen_getof(ctx: &mut JitContext) {
ctx.builder.and_i32();
ctx.builder.if_i32();
{
gen_get_last_op1(ctx.builder);
gen_get_last_op1(ctx.builder, &ctx.previous_instruction);
let last_op1 = ctx.builder.tee_new_local();
gen_get_last_result(ctx.builder, &ctx.previous_instruction);
let last_result = ctx.builder.tee_new_local();
@ -1827,7 +1834,7 @@ pub fn gen_test_be(ctx: &mut JitContext, negate: ConditionNegate) {
}
},
InstructionOperandDest::Other => {
gen_get_last_op1(ctx.builder);
gen_get_last_op1(ctx.builder, &ctx.previous_instruction);
},
}
match source {
@ -1840,7 +1847,7 @@ pub fn gen_test_be(ctx: &mut JitContext, negate: ConditionNegate) {
}
},
InstructionOperand::Other => {
gen_get_last_op1(ctx.builder);
gen_get_last_op1(ctx.builder, &ctx.previous_instruction);
gen_get_last_result(ctx.builder, &ctx.previous_instruction);
ctx.builder.sub_i32();
if *opsize == OPSIZE_8 || *opsize == OPSIZE_16 {
@ -1866,9 +1873,9 @@ pub fn gen_test_be(ctx: &mut JitContext, negate: ConditionNegate) {
Instruction::Sub { opsize, dest: _ } => {
gen_profiler_stat_increment(ctx.builder, profiler::stat::CONDITION_OPTIMISED);
gen_get_last_op1(ctx.builder);
gen_get_last_op1(ctx.builder, &ctx.previous_instruction);
// Note: Can only use register if it's different from dest (being lazy here and just using op1 and result)
gen_get_last_op1(ctx.builder);
gen_get_last_op1(ctx.builder, &ctx.previous_instruction);
gen_get_last_result(ctx.builder, &ctx.previous_instruction);
ctx.builder.sub_i32();
if *opsize == OPSIZE_8 || *opsize == OPSIZE_16 {
@ -1914,7 +1921,7 @@ pub fn gen_test_l(ctx: &mut JitContext, negate: ConditionNegate) {
}
},
InstructionOperandDest::Other => {
gen_get_last_op1(ctx.builder);
gen_get_last_op1(ctx.builder, &ctx.previous_instruction);
if *opsize == OPSIZE_8 || *opsize == OPSIZE_16 {
ctx.builder
.const_i32(if *opsize == OPSIZE_8 { 24 } else { 16 });
@ -1932,7 +1939,7 @@ pub fn gen_test_l(ctx: &mut JitContext, negate: ConditionNegate) {
}
},
InstructionOperand::Other => {
gen_get_last_op1(ctx.builder);
gen_get_last_op1(ctx.builder, &ctx.previous_instruction);
gen_get_last_result(ctx.builder, &ctx.previous_instruction);
ctx.builder.sub_i32();
if *opsize == OPSIZE_8 || *opsize == OPSIZE_16 {
@ -1989,7 +1996,7 @@ pub fn gen_test_le(ctx: &mut JitContext, negate: ConditionNegate) {
}
},
InstructionOperandDest::Other => {
gen_get_last_op1(ctx.builder);
gen_get_last_op1(ctx.builder, &ctx.previous_instruction);
if *opsize == OPSIZE_8 || *opsize == OPSIZE_16 {
ctx.builder
.const_i32(if *opsize == OPSIZE_8 { 24 } else { 16 });
@ -2007,7 +2014,7 @@ pub fn gen_test_le(ctx: &mut JitContext, negate: ConditionNegate) {
}
},
InstructionOperand::Other => {
gen_get_last_op1(ctx.builder);
gen_get_last_op1(ctx.builder, &ctx.previous_instruction);
gen_get_last_result(ctx.builder, &ctx.previous_instruction);
ctx.builder.sub_i32();
if *opsize == OPSIZE_8 || *opsize == OPSIZE_16 {