diff options
-rw-r--r-- | simplify.c | 14 |
1 files changed, 14 insertions, 0 deletions
@@ -1392,6 +1392,20 @@ static int simplify_compare_constant(struct instruction *insn, long long value) break; } break; + case OP_TRUNC: + osize = def->orig_type->bit_size; + switch (insn->opcode) { + case OP_SET_EQ: case OP_SET_NE: + if (one_use(def->target)) { + insn->itype = def->orig_type; + def->type = def->orig_type; + def->size = osize; + def->src2 = value_pseudo(bits); + return replace_opcode(def, OP_AND); + } + break; + } + break; case OP_ZEXT: osize = def->orig_type->bit_size; bits = bits_mask(osize); |