diff options
| -rw-r--r-- | simplify.c | 11 | ||||
| -rw-r--r-- | validation/optim/cmp-zext-uimm1.c | 1 | ||||
| -rw-r--r-- | validation/optim/cmp-zext.c | 1 | ||||
| -rw-r--r-- | validation/optim/zext-cmpu.c | 1 |
4 files changed, 11 insertions, 3 deletions
@@ -1149,6 +1149,17 @@ static int simplify_compare_constant(struct instruction *insn, long long value) return replace_pseudo(insn, &insn->src1, def->src); } break; + case OP_ZEXT: + osize = def->orig_type->bit_size; + bits = bits_mask(osize); + if (value <= bits) { + const struct opcode_table *op = &opcode_table[insn->opcode]; + if (op->flags & OPF_SIGNED) + insn->opcode = op->sign; + insn->itype = def->orig_type; + return replace_pseudo(insn, &insn->src1, def->src); + } + break; } return changed; } diff --git a/validation/optim/cmp-zext-uimm1.c b/validation/optim/cmp-zext-uimm1.c index ffcdaad5..c21780ea 100644 --- a/validation/optim/cmp-zext-uimm1.c +++ b/validation/optim/cmp-zext-uimm1.c @@ -9,7 +9,6 @@ int zext_gt_p(unsigned int x) { return (zext(x) > (BITS )) == 0; } /* * check-name: cmp-zext-uimm1 * check-command: test-linearize -Wno-decl $file - * check-known-to-fail * * check-output-ignore * check-output-returns: 1 diff --git a/validation/optim/cmp-zext.c b/validation/optim/cmp-zext.c index ecee6b5e..ac484780 100644 --- a/validation/optim/cmp-zext.c +++ b/validation/optim/cmp-zext.c @@ -11,7 +11,6 @@ _Bool cmpu_zext(ARGS(UINT32)) { return TEST(UINT64, UINT32, a, < , 0xffffffff); /* * check-name: cmp-zext * check-command: test-linearize -Wno-decl $file - * check-known-to-fail * * check-output-ignore * check-output-returns: 1 diff --git a/validation/optim/zext-cmpu.c b/validation/optim/zext-cmpu.c index 279ed70e..9758e071 100644 --- a/validation/optim/zext-cmpu.c +++ b/validation/optim/zext-cmpu.c @@ -10,7 +10,6 @@ int gtl(unsigned x) { return (((long long)x) > 0x0fffffffeULL) == (x > 0xfffff /* * check-name: zext-cmpu * check-command: test-linearize -Wno-decl $file - * check-known-to-fail * * check-output-ignore * check-output-returns: 1 |