===================================================================
@@ -0,0 +1,18 @@
+/* { dg-do compile } */
+
+typedef signed char int8_t;
+typedef unsigned char uint8_t;
+typedef signed short int16_t;
+typedef unsigned long uint32_t;
+void
+f0a (uint32_t * __restrict__ result, int8_t * __restrict__ arg1,
+ uint32_t * __restrict__ arg4, int8_t temp_6)
+{
+ int idx;
+ for (idx = 0; idx < 416; idx += 1)
+ {
+ result[idx] = (uint8_t)(((arg1[idx] << 7) + arg4[idx]) * temp_6);
+ }
+}
+
+/* { dg-final { cleanup-tree-dump "vect" } } */
===================================================================
@@ -59,7 +59,6 @@ int main (void)
return 0;
}
-/* { dg-final { scan-tree-dump-times "vect_recog_widen_shift_pattern:
detected" 1 "vect" { target vect_widen_shift } } } */
+/* { dg-final { scan-tree-dump-times "vect_recog_widen_shift_pattern:
detected" 2 "vect" { target vect_widen_shift } } } */
/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
/* { dg-final { cleanup-tree-dump "vect" } } */
-
===================================================================
@@ -1186,13 +1186,15 @@ vect_recog_over_widening_pattern (VEC (gimple, hea
{
use_lhs = gimple_assign_lhs (use_stmt);
use_type = TREE_TYPE (use_lhs);
- /* Support only type promotion or signedess change. Check that
USE_TYPE
- is not bigger than the original type. */
+ /* Support only type demotion or signedess change. */
if (!INTEGRAL_TYPE_P (use_type)
- || TYPE_PRECISION (new_type) > TYPE_PRECISION (use_type)
- || TYPE_PRECISION (type) < TYPE_PRECISION (use_type))
+ || TYPE_PRECISION (type) <= TYPE_PRECISION (use_type))
return NULL;
+ /* Check that NEW_TYPE is not bigger than the conversion result. */
+ if (TYPE_PRECISION (new_type) > TYPE_PRECISION (use_type))
+ return NULL;
+
if (TYPE_UNSIGNED (new_type) != TYPE_UNSIGNED (use_type)
|| TYPE_PRECISION (new_type) != TYPE_PRECISION (use_type))