From: Bill Schmidt <wschmidt@linux.ibm.com>
Date: Tue, 23 Nov 2021 21:57:27 +0000 (-0600)
Subject: rs6000: Fix vec_cpsgn parameter order (PR101985)
X-Git-Tag: releases/gcc-10.4.0~582
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=049aa656393299d2ff23f0292c6f49e5057e2909;p=thirdparty%2Fgcc.git

rs6000: Fix vec_cpsgn parameter order (PR101985)

Backport r12-4361 to releases/gcc-10.

2021-11-23  Bill Schmidt  <wschmidt@linux.ibm.com>

gcc/
	PR target/101985
	* config/rs6000/altivec.h (vec_cpsgn): Swap operand order.

gcc/testsuite/
	PR target/101985
	* gcc.target/powerpc/pr101985-1.c: New.
	* gcc.target/powerpc/pr101985-2.c: New.
---

diff --git a/gcc/config/rs6000/altivec.h b/gcc/config/rs6000/altivec.h
index b40e750dc13f..c03d7c9b1490 100644
--- a/gcc/config/rs6000/altivec.h
+++ b/gcc/config/rs6000/altivec.h
@@ -129,7 +129,7 @@
 #define vec_vcfux __builtin_vec_vcfux
 #define vec_cts __builtin_vec_cts
 #define vec_ctu __builtin_vec_ctu
-#define vec_cpsgn __builtin_vec_copysign
+#define vec_cpsgn(x,y) __builtin_vec_copysign(y,x)
 #define vec_double __builtin_vec_double
 #define vec_doublee __builtin_vec_doublee
 #define vec_doubleo __builtin_vec_doubleo
diff --git a/gcc/testsuite/gcc.target/powerpc/pr101985-1.c b/gcc/testsuite/gcc.target/powerpc/pr101985-1.c
new file mode 100644
index 000000000000..b4753ab83d7c
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/pr101985-1.c
@@ -0,0 +1,18 @@
+/* PR target/101985 */
+/* { dg-do run } */
+/* { dg-require-effective-target vsx_hw } */
+/* { dg-options "-O2 -mvsx" } */
+
+#include <altivec.h>
+
+int
+main (void)
+{
+  vector float a = {  1,  2, - 3, - 4};
+  vector float b = {-10, 20, -30,  40};
+  vector float c = { 10, 20, -30, -40};
+  a = vec_cpsgn (a, b);
+  if (! vec_all_eq (a, c))
+    __builtin_abort ();
+  return 0;
+}
diff --git a/gcc/testsuite/gcc.target/powerpc/pr101985-2.c b/gcc/testsuite/gcc.target/powerpc/pr101985-2.c
new file mode 100644
index 000000000000..148ad6573668
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/pr101985-2.c
@@ -0,0 +1,18 @@
+/* PR target/101985 */
+/* { dg-do run } */
+/* { dg-require-effective-target vsx_hw } */
+/* { dg-options "-O2 -mvsx" } */
+
+#include <altivec.h>
+
+int
+main (void)
+{
+  vector double a = {   1,  -4};
+  vector double b = { -10,  40};
+  vector double c = {  10, -40};
+  a = vec_cpsgn (a, b);
+  if (! vec_all_eq (a, c))
+    __builtin_abort ();
+  return 0;
+}