From: Ilya Leoshkevich <iii@linux.ibm.com>
Date: Mon, 23 Nov 2020 23:22:52 +0000 (+0100)
Subject: IBM Z: Restrict vec_cmp<m><n> on z13
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4acba4859013ecaa5d109244f5b1cf95a090f3e3;p=gcc.git

IBM Z: Restrict vec_cmp<m><n> on z13

Commit 5d9ade39b872 ("IBM Z: Fix PR97326: Enable fp compares in
vec_cmp") made it possible to create rtxes that describe signaling
comparisons on z13, which are not supported by the hardware.  Restrict
this by using vcond_comparison_operator predicate.

gcc/ChangeLog:

2020-11-24  Ilya Leoshkevich  <iii@linux.ibm.com>

	* config/s390/vector.md: Use vcond_comparison_operator
	predicate.
---

diff --git a/gcc/config/s390/vector.md b/gcc/config/s390/vector.md
index fef68644625..029ee0886c2 100644
--- a/gcc/config/s390/vector.md
+++ b/gcc/config/s390/vector.md
@@ -1561,7 +1561,7 @@
 
 (define_expand "vec_cmp<mode><tointvec>"
   [(set (match_operand:<TOINTVEC>  0 "register_operand" "")
-	(match_operator:<TOINTVEC> 1 ""
+	(match_operator:<TOINTVEC> 1 "vcond_comparison_operator"
 	  [(match_operand:V_HW     2 "register_operand" "")
 	   (match_operand:V_HW     3 "register_operand" "")]))]
   "TARGET_VX"