On Mon, 29 Aug 2016, Andreas Schwab wrote:
> On Aug 26 2016, Richard Biener <rguent...@suse.de> wrote:
>
> > Index: gcc/testsuite/gcc.dg/pr69047.c
> > ===================================================================
> > --- gcc/testsuite/gcc.dg/pr69047.c (revision 0)
> > +++ gcc/testsuite/gcc.dg/pr69047.c (working copy)
> > @@ -0,0 +1,18 @@
> > +/* { dg-do compile } */
> > +/* { dg-options "-O -fdump-tree-cddce1" } */
> > +
> > +__UINT8_TYPE__
> > +f(__UINT16_TYPE__ b)
> > +{
> > + __UINT8_TYPE__ a;
> > +#if __BYTE_ORDER == __LITTLE_ENDIAN
> > + __builtin_memcpy(&a, &b, sizeof a);
> > +#elif __BYTE_ORDER == __BIG_ENDIAN
> > + __builtin_memcpy(&a, (char *)&b + sizeof a, sizeof a);
> > +#else
> > + a = b;
> > +#endif
> > + return a;
> > +}
> > +
> > +/* { dg-final { scan-tree-dump "_\[0-9\]+ = \\(\[^)\]+\\) b" "cddce1" } }
> > */
> >
>
> On m68k:
>
> FAIL: gcc.dg/pr69047.c scan-tree-dump cddce1 "_[0-9]+ = \\([^)]+\\) b"
>
> $ cat pr69047.c.037t.cddce1
>
> ;; Function f (f, funcdef_no=0, decl_uid=1432, cgraph_uid=0, symbol_order=0)
>
> f (short unsigned int b)
> {
> unsigned char a;
> unsigned char _2;
>
> <bb 2>:
> _2 = BIT_FIELD_REF <b_6(D), 8, 0>;
> return _2;
>
> }
>
>
> Andreas.
Ah, forgot to re-write to use GCC internal macros.
Tested on m68k, applied.
Richard.
2016-08-30 Richard Biener <rguent...@suse.de>
PR tree-optimization/69047
* gcc.dg/pr69047.c: Fix byte-order check.
Index: gcc/testsuite/gcc.dg/pr69047.c
===================================================================
--- gcc/testsuite/gcc.dg/pr69047.c (revision 239856)
+++ gcc/testsuite/gcc.dg/pr69047.c (working copy)
@@ -5,9 +5,9 @@ __UINT8_TYPE__
f(__UINT16_TYPE__ b)
{
__UINT8_TYPE__ a;
-#if __BYTE_ORDER == __LITTLE_ENDIAN
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
__builtin_memcpy(&a, &b, sizeof a);
-#elif __BYTE_ORDER == __BIG_ENDIAN
+#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
__builtin_memcpy(&a, (char *)&b + sizeof a, sizeof a);
#else
a = b;
