AArch32: Correct sdot RTL on aarch32

The RTL Generated from <sup>dot_prod<vsi2qi> is invalid as operand3 cannot be
written to, it's a normal input.  For the expand it's just another operand
but the caller does not expect it to be written to.

gcc/ChangeLog:

	* config/arm/neon.md (<sup>dot_prod<vsi2qi>): Drop statements.

diff --git a/gcc/config/arm/neon.md b/gcc/config/arm/neon.md
index 8b0a396947cc8e7345f178b926128d7224fb218a..764512166e9dc0730357e0133a61eaf82d9d130d 100644 (file)
--- a/gcc/config/arm/neon.md
+++ b/gcc/config/arm/neon.md
@@ -2961,13 +2961,7 @@
                     DOTPROD)
                    (match_operand:VCVTI 3 "register_operand")))]
   "TARGET_DOTPROD"
-{
-  emit_insn (
-    gen_neon_<sup>dot<vsi2qi> (operands[3], operands[3], operands[1],
-                                operands[2]));
-  emit_insn (gen_rtx_SET (operands[0], operands[3]));
-  DONE;
-})
+)
 
 ;; Auto-vectorizer pattern for usdot
 (define_expand "usdot_prod<vsi2qi>"