S/390: Implement vcond expander for V1TI,V1TF

Currently gcc does not emit wf{c,k}* instructions when comparing long
double values.  Middle-end actually adds them in the first place, but
then veclower pass replaces them with floating point register pair
operations, because the corresponding expander is missing.

gcc/ChangeLog:

2019-10-01  Ilya Leoshkevich  <iii@linux.ibm.com>

	PR target/77918
	* config/s390/vector.md (V_HW): Add V1TI in order to make
	vcond$a$b generate vcondv1tiv1tf.

From-SVN: r276408

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ab81f414284a25141f7d8250cb9a1aab40617a62..60c8f9f534c9932d0eba67789fbcd10c3ae45eaa 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2019-10-01  Ilya Leoshkevich  <iii@linux.ibm.com>
+
+       PR target/77918
+       * config/s390/vector.md (V_HW): Add V1TI in order to make
+       vcond$a$b generate vcondv1tiv1tf.
+
 2019-10-01  Richard Sandiford  <richard.sandiford@arm.com>
 
        PR rtl-optimization/91948

diff --git a/gcc/config/s390/vector.md b/gcc/config/s390/vector.md
index 961d2c655e4a692fc3b5e42f7d0b4adcbfdbf28d..d624d3f5473f9a9c34d7e66fbdd7a1246306bc7b 100644 (file)
--- a/gcc/config/s390/vector.md
+++ b/gcc/config/s390/vector.md
@@ -29,7 +29,7 @@
 ; All modes directly supported by the hardware having full vector reg size
 ; V_HW2 is duplicate of V_HW for having two iterators expanding
 ; independently e.g. vcond
-(define_mode_iterator V_HW  [V16QI V8HI V4SI V2DI V2DF (V4SF "TARGET_VXE") (V1TF "TARGET_VXE")])
+(define_mode_iterator V_HW  [V16QI V8HI V4SI V2DI (V1TI "TARGET_VXE") V2DF (V4SF "TARGET_VXE") (V1TF "TARGET_VXE")])
 (define_mode_iterator V_HW2 [V16QI V8HI V4SI V2DI V2DF (V4SF "TARGET_VXE") (V1TF "TARGET_VXE")])
 
 (define_mode_iterator V_HW_64 [V2DI V2DF])