Re: [PATCH] Fix PR69047

2016-08-30 Thread Richard Biener
On Mon, 29 Aug 2016, Andreas Schwab wrote: > On Aug 26 2016, Richard Biener wrote: > > > Index: gcc/testsuite/gcc.dg/pr69047.c > > === > > --- gcc/testsuite/gcc.dg/pr69047.c (revision 0) > > +++ gcc/testsuite/gcc.dg/pr69047.c (wor

Re: [PATCH] Fix PR69047

2016-08-29 Thread Andreas Schwab
On Aug 26 2016, Richard Biener 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

[PATCH] Fix PR69047

2016-08-26 Thread Richard Biener
The following fixes PR69047, update-address-taken can use the same trick as VN and re-write MEM[&d] into SSA when the size of the MEM and the size of d do not match by using a BIT_FIELD_REF. Bootstrapped and tested on x86_64-unknown-linux-gnu, applied to trunk. The patch contains a workaround fo