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2012-03-26 Ulrich Weigand <ulrich.weigand@linaro.org>
LP 960283
LP 960274
LP 960817
Backport from mainline:
gcc/
PR tree-optimization/52686
* tree-vect-data-refs.c (vect_get_smallest_scalar_type): Handle
WIDEN_LSHIFT_EXPR.
gcc/testsuite/
PR tree-optimization/52686
* gcc.target/arm/pr52686.c: New test.
=== added file 'gcc/testsuite/gcc.target/arm/pr52686.c'
--- old/gcc/testsuite/gcc.target/arm/pr52686.c 1970-01-01 00:00:00 +0000
+++ new/gcc/testsuite/gcc.target/arm/pr52686.c 2012-03-23 16:26:22 +0000
@@ -0,0 +1,19 @@
+/* PR target/52375 */
+/* { dg-do compile } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-march=armv7-a -mfloat-abi=softfp -mfpu=neon -O -ftree-vectorize" } */
+
+unsigned int output[4];
+
+void test (unsigned short *p)
+{
+ unsigned int x = *p;
+ if (x)
+ {
+ output[0] = x << 1;
+ output[1] = x << 1;
+ output[2] = x << 1;
+ output[3] = x << 1;
+ }
+}
+
=== modified file 'gcc/tree-vect-data-refs.c'
--- old/gcc/tree-vect-data-refs.c 2012-01-05 15:35:39 +0000
+++ new/gcc/tree-vect-data-refs.c 2012-03-23 16:26:22 +0000
@@ -111,6 +111,7 @@
if (is_gimple_assign (stmt)
&& (gimple_assign_cast_p (stmt)
|| gimple_assign_rhs_code (stmt) == WIDEN_MULT_EXPR
+ || gimple_assign_rhs_code (stmt) == WIDEN_LSHIFT_EXPR
|| gimple_assign_rhs_code (stmt) == FLOAT_EXPR))
{
tree rhs_type = TREE_TYPE (gimple_assign_rhs1 (stmt));
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