https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100445
--- Comment #10 from Uroš Bizjak <ubizjak at gmail dot com> ---
Following patch fixes the failures:
--cut here--
diff --git a/gcc/config/i386/i386-expand.c b/gcc/config/i386/i386-expand.c
index 4dfe7d6c282..61b2f921f41 100644
--- a/gcc/config/i386/i386-expand.c
+++ b/gcc/config/i386/i386-expand.c
@@ -3490,7 +3490,11 @@ static bool
ix86_use_mask_cmp_p (machine_mode mode, machine_mode cmp_mode,
rtx op_true, rtx op_false)
{
- if (GET_MODE_SIZE (mode) == 64)
+ int vector_size = GET_MODE_SIZE (mode);
+
+ if (vector_size < 16)
+ return false;
+ else if (vector_size == 64)
return true;
/* When op_true is NULL, op_false must be NULL, or vice versa. */
--cut here--
But perhaps 64bit V2SI, V4HI and V8QI vpcmp insns can be emulated via their
128bit versions?
