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Implement opt_le, opt_ge in ujit

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Maxime Chevalier-Boisvert 2021-02-03 11:25:34 -05:00 • committed by Alan Wu
parent 020f745041
commit 439e1089b7
1 changed files with 26 additions and 3 deletions
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29
ujit_codegen.c
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@ -339,7 +339,7 @@ gen_getlocal_wc0(jitstate_t* jit, ctx_t* ctx)
// Compute the offset from BP to the local
int32_t local_idx = (int32_t)jit_get_arg(jit, 0);
const int32_t offs = -8 * local_idx;
const int32_t offs = -sizeof(VALUE) * local_idx;
// Load the local from the block
mov(cb, REG0, mem_opnd(64, REG0, offs));
@ -541,8 +541,11 @@ gen_setinstancevariable(jitstate_t* jit, ctx_t* ctx)
return true;
}
// Conditional move operation used by comparison operators
typedef void (*cmov_fn)(codeblock_t* cb, x86opnd_t opnd0, x86opnd_t opnd1);
static bool
gen_opt_lt(jitstate_t* jit, ctx_t* ctx)
gen_fixnum_cmp(jitstate_t* jit, ctx_t* ctx, cmov_fn cmov_op)
{
// Create a size-exit to fall back to the interpreter
// Note: we generate the side-exit before popping operands from the stack
@ -579,7 +582,7 @@ gen_opt_lt(jitstate_t* jit, ctx_t* ctx)
mov(cb, REG1, arg0);
cmp(cb, REG1, arg1);
mov(cb, REG1, imm_opnd(Qtrue));
cmovl(cb, REG0, REG1);
cmov_op(cb, REG0, REG1);
// Push the output on the stack
x86opnd_t dst = ctx_stack_push(ctx, T_NONE);
@ -588,6 +591,24 @@ gen_opt_lt(jitstate_t* jit, ctx_t* ctx)
return true;
}
static bool
gen_opt_lt(jitstate_t* jit, ctx_t* ctx)
{
return gen_fixnum_cmp(jit, ctx, cmovl);
}
static bool
gen_opt_le(jitstate_t* jit, ctx_t* ctx)
{
return gen_fixnum_cmp(jit, ctx, cmovle);
}
static bool
gen_opt_ge(jitstate_t* jit, ctx_t* ctx)
{
return gen_fixnum_cmp(jit, ctx, cmovge);
}
static bool
gen_opt_and(jitstate_t* jit, ctx_t* ctx)
{
@ -1331,6 +1352,8 @@ ujit_init_codegen(void)
ujit_reg_op(BIN(getinstancevariable), gen_getinstancevariable, false);
ujit_reg_op(BIN(setinstancevariable), gen_setinstancevariable, false);
ujit_reg_op(BIN(opt_lt), gen_opt_lt, false);
ujit_reg_op(BIN(opt_le), gen_opt_le, false);
ujit_reg_op(BIN(opt_ge), gen_opt_ge, false);
ujit_reg_op(BIN(opt_and), gen_opt_and, false);
ujit_reg_op(BIN(opt_minus), gen_opt_minus, false);
ujit_reg_op(BIN(opt_plus), gen_opt_plus, false);