[AArch64] Add a commutativity marker to the SVE [SU]ABD patterns

This will be tested by the ACLE patches, but it's really an
independent improvement.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* config/aarch64/aarch64-sve.md (aarch64_<su>abd<mode>_3): Add
	a commutativity marker.

From-SVN: r274510

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 66631f6..d0eb973 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,4 +1,9 @@
 2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>
+
+       * config/aarch64/aarch64-sve.md (aarch64_<su>abd<mode>_3): Add
+       a commutativity marker.
+
+2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>
            Kugan Vivekanandarajah  <kugan.vivekanandarajah@linaro.org>
 
        * config/aarch64/aarch64-protos.h (aarch64_prepare_sve_int_fma)

diff --git a/gcc/config/aarch64/aarch64-sve.md b/gcc/config/aarch64/aarch64-sve.md
index 93f5536..cf90731 100644 (file)
--- a/gcc/config/aarch64/aarch64-sve.md
+++ b/gcc/config/aarch64/aarch64-sve.md
@@ -2060,7 +2060,7 @@
          [(match_operand:<VPRED> 1 "register_operand" "Upl, Upl")
           (minus:SVE_I
             (USMAX:SVE_I
-              (match_operand:SVE_I 2 "register_operand" "0, w")
+              (match_operand:SVE_I 2 "register_operand" "%0, w")
               (match_operand:SVE_I 3 "register_operand" "w, w"))
             (<max_opp>:SVE_I
               (match_dup 2)