[Bug middle-end/45234] [4.4/4.5/4.6 Regression] ICE in expand_call, at calls.c:2845 when passing aligned function argument from unaligned stack after alloca

[jakub at gcc dot gnu dot org]

------- Comment #22 from jakub at gcc dot gnu dot org  2010-09-22 17:24 -------
The 4.5/4.4 backports of this patch break:
/* { dg-do compile } */
/* { dg-options "-march=i586" { target ilp32 } } */

struct S { union { double b[4]; } a[18]; } s, a[5];
void foo (struct S);
struct S bar (struct S, struct S *, struct S);

void
foo (struct S arg)
{
}

void
baz (void)
{
  foo (bar (s, &a[1], a[2]));
}

(distilled from struct-layout-1.exp tests, many of them fail).  Please either
fix soon, or revert the patch.  I'd like to roll 4.4.5 RC1 soon, but with this
kind of regression it is not possible.


-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
           Priority|P2                          |P1
         Resolution|FIXED                       |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45234