diff mbox series

fix type of canonicalization of sext + unsigned compare

Message ID 20210117151355.30515-1-luc.vanoostenryck@gmail.com (mailing list archive)
State Mainlined, archived
Headers show
Series fix type of canonicalization of sext + unsigned compare | expand

Commit Message

Luc Van Oostenryck Jan. 17, 2021, 3:13 p.m. UTC
In commit 4a5f616407e2 ("cmp: canonicalize sext(x) cmpu C (with C >= SMAX)"),
the operand is replaced to avoid a sign extension but the corresponding
type was not updated. Fix this now.

Fixes: 4a5f616407e26efb67013f8267adef2d6e093bf1
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
---
 simplify.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/simplify.c b/simplify.c
index b0d2c1b5b7c6..1e7648486c49 100644
--- a/simplify.c
+++ b/simplify.c
@@ -1225,12 +1225,14 @@  static int simplify_compare_constant(struct instruction *insn, long long value)
 		switch (insn->opcode) {
 		case OP_SET_BE:
 			if (value >= sign_bit(osize)) {
+				insn->itype = def->orig_type;
 				replace_binop_value(insn, OP_SET_GE, 0);
 				return replace_pseudo(insn, &insn->src1, def->src);
 			}
 			break;
 		case OP_SET_A:
 			if (value >= sign_bit(osize)) {
+				insn->itype = def->orig_type;
 				replace_binop_value(insn, OP_SET_LT, 0);
 				return replace_pseudo(insn, &insn->src1, def->src);
 			}