We've had skeleton support for "SRHSUB" and "URHSUB" since the initial
commit of the port, but no such instructions exist.
Tested on aarch64-linux-gnu and applied as 280049.
Richard
2020-01-09 Richard Sandiford <richard.sandif...@arm.com>
gcc/
* config/aarch64/iterators.md (SRHSUB, URHSUB): Delete.
(HADDSUB, sur, addsub): Remove them.
Index: gcc/config/aarch64/iterators.md
===================================================================
--- gcc/config/aarch64/iterators.md 2020-01-06 12:58:16.461794517 +0000
+++ gcc/config/aarch64/iterators.md 2020-01-09 15:11:10.752138270 +0000
@@ -436,8 +436,6 @@ (define_c_enum "unspec"
UNSPEC_URHADD ; Used in aarch64-simd.md.
UNSPEC_SHSUB ; Used in aarch64-simd.md.
UNSPEC_UHSUB ; Used in aarch64-simd.md.
- UNSPEC_SRHSUB ; Used in aarch64-simd.md.
- UNSPEC_URHSUB ; Used in aarch64-simd.md.
UNSPEC_ADDHN ; Used in aarch64-simd.md.
UNSPEC_RADDHN ; Used in aarch64-simd.md.
UNSPEC_SUBHN ; Used in aarch64-simd.md.
@@ -1841,8 +1839,7 @@ (define_int_iterator LOGICALF [UNSPEC_AN
(define_int_iterator HADDSUB [UNSPEC_SHADD UNSPEC_UHADD
UNSPEC_SRHADD UNSPEC_URHADD
- UNSPEC_SHSUB UNSPEC_UHSUB
- UNSPEC_SRHSUB UNSPEC_URHSUB])
+ UNSPEC_SHSUB UNSPEC_UHSUB])
(define_int_iterator HADD [UNSPEC_SHADD UNSPEC_UHADD])
@@ -2273,7 +2270,6 @@ (define_int_attr su [(UNSPEC_SADDV "s")
(define_int_attr sur [(UNSPEC_SHADD "s") (UNSPEC_UHADD "u")
(UNSPEC_SRHADD "sr") (UNSPEC_URHADD "ur")
(UNSPEC_SHSUB "s") (UNSPEC_UHSUB "u")
- (UNSPEC_SRHSUB "sr") (UNSPEC_URHSUB "ur")
(UNSPEC_ADDHN "") (UNSPEC_RADDHN "r")
(UNSPEC_SABAL "s") (UNSPEC_UABAL "u")
(UNSPEC_SABDL2 "s") (UNSPEC_UABDL2 "u")
@@ -2336,8 +2332,6 @@ (define_int_attr addsub [(UNSPEC_SHADD "
(UNSPEC_URHADD "add")
(UNSPEC_SHSUB "sub")
(UNSPEC_UHSUB "sub")
- (UNSPEC_SRHSUB "sub")
- (UNSPEC_URHSUB "sub")
(UNSPEC_ADDHN "add")
(UNSPEC_SUBHN "sub")
(UNSPEC_RADDHN "add")
