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Factor our guard_two_fixnums(). Implement opt_or.

This commit is contained in:
Maxime Chevalier-Boisvert 2021-04-09 14:01:27 -04:00 committed by Alan Wu
parent 7ee3636f61
commit 2404ff691d

View file

@ -897,6 +897,34 @@ gen_setinstancevariable(jitstate_t* jit, ctx_t* ctx)
return YJIT_KEEP_COMPILING;
}
static void
guard_two_fixnums(ctx_t* ctx, uint8_t* side_exit)
{
// Get the stack operand types
val_type_t arg1_type = ctx_get_opnd_type(ctx, OPND_STACK(0));
val_type_t arg0_type = ctx_get_opnd_type(ctx, OPND_STACK(1));
// Get stack operands without popping them
x86opnd_t arg1 = ctx_stack_opnd(ctx, 0);
x86opnd_t arg0 = ctx_stack_opnd(ctx, 1);
// If not fixnums, fall back
if (arg0_type.type != ETYPE_FIXNUM) {
ADD_COMMENT(cb, "guard arg0 fixnum");
test(cb, arg0, imm_opnd(RUBY_FIXNUM_FLAG));
jz_ptr(cb, side_exit);
}
if (arg1_type.type != ETYPE_FIXNUM) {
ADD_COMMENT(cb, "guard arg1 fixnum");
test(cb, arg1, imm_opnd(RUBY_FIXNUM_FLAG));
jz_ptr(cb, side_exit);
}
// TODO: set stack types in context
ctx_set_opnd_type(ctx, OPND_STACK(0), TYPE_FIXNUM);
ctx_set_opnd_type(ctx, OPND_STACK(1), TYPE_FIXNUM);
}
// Conditional move operation used by comparison operators
typedef void (*cmov_fn)(codeblock_t* cb, x86opnd_t opnd0, x86opnd_t opnd1);
@ -911,21 +939,12 @@ gen_fixnum_cmp(jitstate_t* jit, ctx_t* ctx, cmov_fn cmov_op)
return YJIT_CANT_COMPILE;
}
// Get the operands and destination from the stack
val_type_t arg1_type = ctx_get_opnd_type(ctx, OPND_STACK(0));
x86opnd_t arg1 = ctx_stack_pop(ctx, 1);
val_type_t arg0_type = ctx_get_opnd_type(ctx, OPND_STACK(0));
x86opnd_t arg0 = ctx_stack_pop(ctx, 1);
// Check that both operands are fixnums
guard_two_fixnums(ctx, side_exit);
// If not fixnums, fall back
if (arg0_type.type != ETYPE_FIXNUM) {
test(cb, arg0, imm_opnd(RUBY_FIXNUM_FLAG));
jz_ptr(cb, side_exit);
}
if (arg1_type.type != ETYPE_FIXNUM) {
test(cb, arg1, imm_opnd(RUBY_FIXNUM_FLAG));
jz_ptr(cb, side_exit);
}
// Get the operands and destination from the stack
x86opnd_t arg1 = ctx_stack_pop(ctx, 1);
x86opnd_t arg0 = ctx_stack_pop(ctx, 1);
// Compare the arguments
xor(cb, REG0_32, REG0_32); // REG0 = Qfalse
@ -1121,21 +1140,12 @@ gen_opt_and(jitstate_t* jit, ctx_t* ctx)
return YJIT_CANT_COMPILE;
}
// Get the operands and destination from the stack
val_type_t arg1_type = ctx_get_opnd_type(ctx, OPND_STACK(0));
x86opnd_t arg1 = ctx_stack_pop(ctx, 1);
val_type_t arg0_type = ctx_get_opnd_type(ctx, OPND_STACK(0));
x86opnd_t arg0 = ctx_stack_pop(ctx, 1);
// Check that both operands are fixnums
guard_two_fixnums(ctx, side_exit);
// If not fixnums, fall back
if (arg0_type.type != ETYPE_FIXNUM) {
test(cb, arg0, imm_opnd(RUBY_FIXNUM_FLAG));
jz_ptr(cb, side_exit);
}
if (arg1_type.type != ETYPE_FIXNUM) {
test(cb, arg1, imm_opnd(RUBY_FIXNUM_FLAG));
jz_ptr(cb, side_exit);
}
// Get the operands and destination from the stack
x86opnd_t arg1 = ctx_stack_pop(ctx, 1);
x86opnd_t arg0 = ctx_stack_pop(ctx, 1);
// Do the bitwise and arg0 & arg1
mov(cb, REG0, arg0);
@ -1148,6 +1158,35 @@ gen_opt_and(jitstate_t* jit, ctx_t* ctx)
return YJIT_KEEP_COMPILING;
}
static codegen_status_t
gen_opt_or(jitstate_t* jit, ctx_t* ctx)
{
// Create a size-exit to fall back to the interpreter
// Note: we generate the side-exit before popping operands from the stack
uint8_t* side_exit = yjit_side_exit(jit, ctx);
if (!assume_bop_not_redefined(jit->block, INTEGER_REDEFINED_OP_FLAG, BOP_OR)) {
return YJIT_CANT_COMPILE;
}
// Check that both operands are fixnums
guard_two_fixnums(ctx, side_exit);
// Get the operands and destination from the stack
x86opnd_t arg1 = ctx_stack_pop(ctx, 1);
x86opnd_t arg0 = ctx_stack_pop(ctx, 1);
// Do the bitwise or arg0 | arg1
mov(cb, REG0, arg0);
or(cb, REG0, arg1);
// Push the output on the stack
x86opnd_t dst = ctx_stack_push(ctx, TYPE_FIXNUM);
mov(cb, dst, REG0);
return YJIT_KEEP_COMPILING;
}
static codegen_status_t
gen_opt_minus(jitstate_t* jit, ctx_t* ctx)
{
@ -1159,21 +1198,12 @@ gen_opt_minus(jitstate_t* jit, ctx_t* ctx)
return YJIT_CANT_COMPILE;
}
// Get the operands and destination from the stack
val_type_t arg1_type = ctx_get_opnd_type(ctx, OPND_STACK(0));
x86opnd_t arg1 = ctx_stack_pop(ctx, 1);
val_type_t arg0_type = ctx_get_opnd_type(ctx, OPND_STACK(0));
x86opnd_t arg0 = ctx_stack_pop(ctx, 1);
// Check that both operands are fixnums
guard_two_fixnums(ctx, side_exit);
// If not fixnums, fall back
if (arg0_type.type != ETYPE_FIXNUM) {
test(cb, arg0, imm_opnd(RUBY_FIXNUM_FLAG));
jz_ptr(cb, side_exit);
}
if (arg1_type.type != ETYPE_FIXNUM) {
test(cb, arg1, imm_opnd(RUBY_FIXNUM_FLAG));
jz_ptr(cb, side_exit);
}
// Get the operands and destination from the stack
x86opnd_t arg1 = ctx_stack_pop(ctx, 1);
x86opnd_t arg0 = ctx_stack_pop(ctx, 1);
// Subtract arg0 - arg1 and test for overflow
mov(cb, REG0, arg0);
@ -1199,21 +1229,12 @@ gen_opt_plus(jitstate_t* jit, ctx_t* ctx)
return YJIT_CANT_COMPILE;
}
// Get the operands and destination from the stack
val_type_t arg1_type = ctx_get_opnd_type(ctx, OPND_STACK(0));
x86opnd_t arg1 = ctx_stack_pop(ctx, 1);
val_type_t arg0_type = ctx_get_opnd_type(ctx, OPND_STACK(0));
x86opnd_t arg0 = ctx_stack_pop(ctx, 1);
// Check that both operands are fixnums
guard_two_fixnums(ctx, side_exit);
// If not fixnums, fall back
if (arg0_type.type != ETYPE_FIXNUM) {
test(cb, arg0, imm_opnd(RUBY_FIXNUM_FLAG));
jz_ptr(cb, side_exit);
}
if (arg1_type.type != ETYPE_FIXNUM) {
test(cb, arg1, imm_opnd(RUBY_FIXNUM_FLAG));
jz_ptr(cb, side_exit);
}
// Get the operands and destination from the stack
x86opnd_t arg1 = ctx_stack_pop(ctx, 1);
x86opnd_t arg0 = ctx_stack_pop(ctx, 1);
// Add arg0 + arg1 and test for overflow
mov(cb, REG0, arg0);
@ -2007,6 +2028,7 @@ yjit_init_codegen(void)
yjit_reg_op(BIN(opt_gt), gen_opt_gt);
yjit_reg_op(BIN(opt_aref), gen_opt_aref);
yjit_reg_op(BIN(opt_and), gen_opt_and);
yjit_reg_op(BIN(opt_or), gen_opt_or);
yjit_reg_op(BIN(opt_minus), gen_opt_minus);
yjit_reg_op(BIN(opt_plus), gen_opt_plus);
yjit_reg_op(BIN(opt_getinlinecache), gen_opt_getinlinecache);