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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
This commit is contained in:
Ilya Leoshkevich 2019-10-01 14:03:08 +00:00 committed by Ilya Leoshkevich
parent 3366b37850
commit b4363c5a26
2 changed files with 7 additions and 1 deletions
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gcc/ChangeLog
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@ -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

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gcc/config/s390/vector.md
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@ -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])