Commit 229752afe315 ("VEC_COND_EXPR optimizations") has improved code
generation: we no longer need "vx x,x,-1", which turned out to be
superfluous. Instead, we simply swap 0 and -1 arguments of the
preceding "vsel".
gcc/testsuite/ChangeLog:
2020-11-23 Ilya Leoshkevich <i...@linux.ibm.com>
* gcc.target/s390/zvector/autovec-double-quiet-uneq.c: Expect
that "vx" is not emitted.
* gcc.target/s390/zvector/autovec-float-quiet-uneq.c: Likewise.
---
.../gcc.target/s390/zvector/autovec-double-quiet-uneq.c | 5 ++++-
.../gcc.target/s390/zvector/autovec-float-quiet-uneq.c | 5 ++++-
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/gcc/testsuite/gcc.target/s390/zvector/autovec-double-quiet-uneq.c
b/gcc/testsuite/gcc.target/s390/zvector/autovec-double-quiet-uneq.c
index 3d6da30beac..7c9b20fd2e0 100644
--- a/gcc/testsuite/gcc.target/s390/zvector/autovec-double-quiet-uneq.c
+++ b/gcc/testsuite/gcc.target/s390/zvector/autovec-double-quiet-uneq.c
@@ -5,6 +5,9 @@
AUTOVEC_DOUBLE (QUIET_UNEQ);
+/* { dg-final { scan-assembler {\n\tvzero\t} } } */
+/* { dg-final { scan-assembler {\n\tvgmg\t} } } */
/* { dg-final { scan-assembler-times {\n\tvfchdb\t} 2 } } */
/* { dg-final { scan-assembler {\n\tvo\t} } } */
-/* { dg-final { scan-assembler {\n\tvx\t} } } */
+/* { dg-final { scan-assembler {\n\tvsel\t} } } */
+/* { dg-final { scan-assembler-not {\n\tvx\t} } } */
diff --git a/gcc/testsuite/gcc.target/s390/zvector/autovec-float-quiet-uneq.c
b/gcc/testsuite/gcc.target/s390/zvector/autovec-float-quiet-uneq.c
index 1df53a99bc8..5ab9337880d 100644
--- a/gcc/testsuite/gcc.target/s390/zvector/autovec-float-quiet-uneq.c
+++ b/gcc/testsuite/gcc.target/s390/zvector/autovec-float-quiet-uneq.c
@@ -5,6 +5,9 @@
AUTOVEC_FLOAT (QUIET_UNEQ);
+/* { dg-final { scan-assembler {\n\tvzero\t} } } */
+/* { dg-final { scan-assembler {\n\tvgmf\t} } } */
/* { dg-final { scan-assembler-times {\n\tvfchsb\t} 2 } } */
/* { dg-final { scan-assembler {\n\tvo\t} } } */
-/* { dg-final { scan-assembler {\n\tvx\t} } } */
+/* { dg-final { scan-assembler {\n\tvsel\t} } } */
+/* { dg-final { scan-assembler-not {\n\tvx\t} } } */
--
2.25.4
