* testsuite/gcc.c-torture/execute/simd-3.c: New.

        * expr.c (expand_expr): Handle VECTOR_CST.
        (const_vector_from_tree): New.

        * varasm.c (output_constant): Handle VECTOR_CST.

        * c-typeck.c (digest_init): Build a vector constant from a
        VECTOR_TYPE.

        * config/rs6000/rs6000.c: Remove prototype for
        easy_vector_constant.
        (easy_vector_constant): Add mode parameter.  Rewrite to handle
        more easy constants.
        (rs6000_emit_move): Pass mode to easy_vector_constant.
        Call emit_easy_vector_insn for SPE V2SI vector constant moves.
        (emit_easy_vector_insn): New.
        (easy_vector_same): New.
        (EASY_VECTOR_15): New macro.
        (EASY_VECTOR_15_ADD_SELF): New macro.
        (bdesc_2arg): Rename to xorv2si3.
        (easy_vector_constant_add_self): New.
        (input_operand): Allow vector constants.

        * config/rs6000/rs6000.h (PREDICATE_CODES): Add
        easy_vector_constant, easy_vector_constant_add_self.
        (EXTRA_CONSTRAINT): Add 'W'.

        * config/rs6000/rs6000-protos.h: Add prototype for
        easy_vector_constant, emit_easy_vector_insn.

        * config/rs6000/altivec.md (xorv8hi3): New.
        (xorv16qi3): New.
        Remove all _const0 patterns.
        (movv4si_internal): Rewrite to use code.  Add vector constant to
        vector alternative.  Add splitter.
        (movv8hi_internal): Same.
        (movv16qi_internal): Same.
        (movv4sf_internal): Same.
        Change the unspecs for vspltis* to use constants.

        * config/rs6000/spe.md ("xorv4hi3"): New.
        ("spe_evxor"): Rename to xorv2si3.
        ("xorv1di3"): New.
        Remove all _const0 patterns.
        (movv2si_internal): Rewrite to use code.  Add vector constant to
        alternatives.  Add splitter.
        (movv4hi_internal): Add vector constant to alternatives.
        (movv1di_internal): Same.
        (movv2sf_internal): Same.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@65130 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 8 insertions, 0 deletions

diff --git a/gcc/c-typeck.c b/gcc/c-typeck.c
index 8fbcd861d2b..ce37eea09f7 100644
--- a/gcc/c-typeck.c
+++ b/gcc/c-typeck.c
@@ -4759,6 +4759,14 @@ digest_init (type, init, require_constant)
 	}
     }
 
+  /* Build a VECTOR_CST from a *constant* vector constructor.  If the
+     vector constructor is not constant (e.g. {1,2,3,foo()}) then punt
+     below and handle as a constructor.  */
+  if (code == VECTOR_TYPE
+      && comptypes (TREE_TYPE (inside_init), type)
+      && TREE_CONSTANT (inside_init))
+    return build_vector (type, TREE_OPERAND (inside_init, 1));
+
   /* Any type can be initialized
      from an expression of the same type, optionally with braces.  */