From: Tamar Christina <tamar.christina@arm.com>
Date: Sat, 18 Oct 2025 07:21:30 +0000 (+0100)
Subject: rs6000: convert widen_[us]sum into convert optab [PR122069]
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=bb80fb6e9bd26f04d4654248184f93d62dc53a76;p=thirdparty%2Fgcc.git

rs6000: convert widen_[us]sum into convert optab [PR122069]

This patch is a mechanical rewrite of the widen_[us]sum optabs from a direct to
a conversion optab.  The result of which requires the output mode to be added to
the existing patterns.

No change in functionality is expected.

gcc/ChangeLog:

	PR middle-end/122069
	* config/rs6000/altivec.md (widen_usum<mode>3): Rename ...
	(widen_usumv4si<mode>3): ... to this.
	(widen_ssumv16qi3): Rename ...
	(widen_ssumv4siv16qi3): ... to this.
	(widen_ssumv8hi3): Rename ...
	(widen_ssumv4siv8hi3): ... to this.
---

diff --git a/gcc/config/rs6000/altivec.md b/gcc/config/rs6000/altivec.md
index 7edc288a656..fa3368079ad 100644
--- a/gcc/config/rs6000/altivec.md
+++ b/gcc/config/rs6000/altivec.md
@@ -3772,7 +3772,7 @@
   DONE;
 })
 
-(define_expand "widen_usum<mode>3"
+(define_expand "widen_usumv4si<mode>3"
   [(set (match_operand:V4SI 0 "register_operand" "=v")
         (plus:V4SI (match_operand:V4SI 2 "register_operand" "v")
                    (unspec:V4SI [(match_operand:VIshort 1 "register_operand" "v")]
@@ -3786,7 +3786,7 @@
   DONE;
 })
 
-(define_expand "widen_ssumv16qi3"
+(define_expand "widen_ssumv4siv16qi3"
   [(set (match_operand:V4SI 0 "register_operand" "=v")
         (plus:V4SI (match_operand:V4SI 2 "register_operand" "v")
                    (unspec:V4SI [(match_operand:V16QI 1 "register_operand" "v")]
@@ -3800,7 +3800,7 @@
   DONE;
 })
 
-(define_expand "widen_ssumv8hi3"
+(define_expand "widen_ssumv4siv8hi3"
   [(set (match_operand:V4SI 0 "register_operand" "=v")
         (plus:V4SI (match_operand:V4SI 2 "register_operand" "v")
                    (unspec:V4SI [(match_operand:V8HI 1 "register_operand" "v")]