cfe5312fcc
turned into generic ones (as they'll be useful everywhere). Node arguments for predicates require the '%' prefix for consistency. Hex numbers are permitted.
33 lines
695 B
C
33 lines
695 B
C
#include "mcg.h"
|
|
|
|
bool burm_predicate_signed_constant(struct burm_node* node, arith size)
|
|
{
|
|
struct ir* ir = node->ir;
|
|
arith pivot = 1<<(size-1);
|
|
arith mask = ~((1<<size) - 1);
|
|
assert(ir->opcode == IR_CONST);
|
|
|
|
return ((ir->u.ivalue + pivot) & mask) == 0;
|
|
}
|
|
|
|
bool burm_predicate_unsigned_constant(struct burm_node* node, arith size)
|
|
{
|
|
struct ir* ir = node->ir;
|
|
arith mask = ~((1<<size) - 1);
|
|
assert(ir->opcode == IR_CONST);
|
|
|
|
return (ir->u.ivalue & mask) == 0;
|
|
}
|
|
|
|
bool burm_predicate_specific_constant(struct burm_node* node, arith val)
|
|
{
|
|
struct ir* ir = node->ir;
|
|
assert(ir->opcode == IR_CONST);
|
|
|
|
return ir->u.ivalue == val;
|
|
}
|
|
|
|
/* vim: set sw=4 ts=4 expandtab : */
|
|
|
|
|