diff options
Diffstat (limited to 'simplify.c')
| -rw-r--r-- | simplify.c | 15 |
1 files changed, 15 insertions, 0 deletions
@@ -2288,6 +2288,21 @@ static int simplify_cast(struct instruction *insn) return replace_pseudo(insn, &insn->src1, def->src1); } break; + case OP_NOT: + switch (insn->opcode) { + case OP_TRUNC: + if (one_use(src)) { + // TRUNC(NOT(x)) --> NOT(TRUNC(x)) + insn->opcode = OP_NOT; + def->orig_type = def->type; + def->opcode = OP_TRUNC; + def->type = insn->type; + def->size = insn->size; + return REPEAT_CSE; + } + break; + } + break; case OP_OR: switch (insn->opcode) { case OP_TRUNC: |