The following fix from Uros properly (not) handles XFmode vectors in
type_natural_mode.
Bootstrapped and tested on x86_64-unknown-linux-gnu by Uros, applied.
Richard.
2016-03-02 Richard Biener <rguent...@suse.de>
Uros Bizjak <ubiz...@gmail.com>
PR target/67278
* config/i386/i386.c (type_natural_mode): Handle XFmode vectors.
* gcc.dg/simd-8.c: New testcase.
Index: gcc/config/i386/i386.c
===================================================================
--- gcc/config/i386/i386.c (revision 233897)
+++ gcc/config/i386/i386.c (working copy)
@@ -7794,6 +7794,10 @@ type_natural_mode (const_tree type, cons
{
machine_mode innermode = TYPE_MODE (TREE_TYPE (type));
+ /* There are no XFmode vector modes. */
+ if (innermode = XFmode)
+ return mode;
+
if (TREE_CODE (TREE_TYPE (type)) == REAL_TYPE)
mode = MIN_MODE_VECTOR_FLOAT;
else
Index: gcc/testsuite/gcc.dg/simd-8.c
===================================================================
--- gcc/testsuite/gcc.dg/simd-8.c (revision 0)
+++ gcc/testsuite/gcc.dg/simd-8.c (working copy)
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+
+#if __SIZEOF_LONG_DOUBLE__ == 16 || __SIZEOF_LONG_DOUBLE__ == 8
+typedef long double a __attribute__((vector_size (32)));
+
+a __attribute__((noinline))
+sum (a first, a second)
+{
+ return first + second;
+}
+
+a
+foo (a x, a y, a z)
+{
+ return sum (x, y) + z;
+}
+#else
+int main() {}
+#endif
