+2017-12-11 Will Schmidt <will_schmidt@vnet.ibm.com>
+
+ * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add support for
+ early folding of splat_u{8,16,32}.
+
2017-12-11 Jakub Jelinek <jakub@redhat.com>
* config/aarch64/aarch64.c (aarch64_print_operand): Don't start
fold_compare_helper (gsi, LE_EXPR, stmt);
return true;
+ /* flavors of vec_splat_[us]{8,16,32}. */
+ case ALTIVEC_BUILTIN_VSPLTISB:
+ case ALTIVEC_BUILTIN_VSPLTISH:
+ case ALTIVEC_BUILTIN_VSPLTISW:
+ {
+ arg0 = gimple_call_arg (stmt, 0);
+ lhs = gimple_call_lhs (stmt);
+ /* Only fold the vec_splat_*() if arg0 is constant. */
+ if (TREE_CODE (arg0) != INTEGER_CST)
+ return false;
+ gimple_seq stmts = NULL;
+ location_t loc = gimple_location (stmt);
+ tree splat_value = gimple_convert (&stmts, loc,
+ TREE_TYPE (TREE_TYPE (lhs)), arg0);
+ gsi_insert_seq_before (gsi, stmts, GSI_SAME_STMT);
+ tree splat_tree = build_vector_from_val (TREE_TYPE (lhs), splat_value);
+ g = gimple_build_assign (lhs, splat_tree);
+ gimple_set_location (g, gimple_location (stmt));
+ gsi_replace (gsi, g, true);
+ return true;
+ }
+
default:
if (TARGET_DEBUG_BUILTIN)
fprintf (stderr, "gimple builtin intrinsic not matched:%d %s %s\n",
--- /dev/null
+/* Verify that overloaded built-ins for vec_splat_s8 and vec_splat_s16
+ generate errors as expected when we attempt to use invalid inputs. */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target powerpc_vsx_ok } */
+/* { dg-options "-mvsx -O2" } */
+
+#include <altivec.h>
+
+vector signed short
+testss_1 (unsigned int ui)
+{
+ return vec_splat_s16 (ui);/* { dg-error "argument 1 must be a 5-bit signed literal" } */
+}
+
+vector unsigned short
+testss_2 (signed int si)
+{
+ return vec_splat_u16 (si);/* { dg-error "argument 1 must be a 5-bit signed literal" } */
+}
+
+vector signed char
+testsc_1 (unsigned int ui)
+{
+ return vec_splat_s8 (ui); /* { dg-error "argument 1 must be a 5-bit signed literal" } */
+}
+
+vector unsigned char
+testsc_2 (signed int si)
+{
+ return vec_splat_u8 (si);/* { dg-error "argument 1 must be a 5-bit signed literal" } */
+}
+