[committed][AArch64] Don't handle bswap in aarch64_builtin_vectorized_function

[Richard Sandiford]

aarch64_builtin_vectorized_function no longer needs to handle bswap*
since we have internal functions and optabs for all supported cases.

Tested on aarch64-linux-gnu and applied as r277951.

Richard


2019-11-08  Richard Sandiford  <richard.sandif...@arm.com>

gcc/
        * config/aarch64/aarch64-builtins.c
        (aarch64_builtin_vectorized_function): Remove bswap handling.

Index: gcc/config/aarch64/aarch64-builtins.c
===================================================================
--- gcc/config/aarch64/aarch64-builtins.c       2019-10-22 08:46:57.359355939 
+0100
+++ gcc/config/aarch64/aarch64-builtins.c       2019-11-08 08:36:49.199444569 
+0000
@@ -1918,29 +1918,6 @@ #define AARCH64_CHECK_BUILTIN_MODE(C, N)
 
        return aarch64_builtin_decls[builtin];
       }
-    case CFN_BUILT_IN_BSWAP16:
-#undef AARCH64_CHECK_BUILTIN_MODE
-#define AARCH64_CHECK_BUILTIN_MODE(C, N) \
-  (out_mode == N##Imode && out_n == C \
-   && in_mode == N##Imode && in_n == C)
-      if (AARCH64_CHECK_BUILTIN_MODE (4, H))
-       return aarch64_builtin_decls[AARCH64_SIMD_BUILTIN_UNOPU_bswapv4hi];
-      else if (AARCH64_CHECK_BUILTIN_MODE (8, H))
-       return aarch64_builtin_decls[AARCH64_SIMD_BUILTIN_UNOPU_bswapv8hi];
-      else
-       return NULL_TREE;
-    case CFN_BUILT_IN_BSWAP32:
-      if (AARCH64_CHECK_BUILTIN_MODE (2, S))
-       return aarch64_builtin_decls[AARCH64_SIMD_BUILTIN_UNOPU_bswapv2si];
-      else if (AARCH64_CHECK_BUILTIN_MODE (4, S))
-       return aarch64_builtin_decls[AARCH64_SIMD_BUILTIN_UNOPU_bswapv4si];
-      else
-       return NULL_TREE;
-    case CFN_BUILT_IN_BSWAP64:
-      if (AARCH64_CHECK_BUILTIN_MODE (2, D))
-       return aarch64_builtin_decls[AARCH64_SIMD_BUILTIN_UNOPU_bswapv2di];
-      else
-       return NULL_TREE;
     default:
       return NULL_TREE;
     }