Fix unaligned memory loads on Alpha. GCC used to generate them in
the following manner:
([reg:A & -8] << (64 - (((reg:FP+reg:B) & 0x7) << 3))) >> 56

This fails when we're doing loads with the offse

Fix unaligned memory loads on Alpha. GCC used to generate them in
the following manner:
([reg:A & -8] << (64 - (((reg:FP+reg:B) & 0x7) << 3))) >> 56

This fails when we're doing loads with the offset from the frame
pointer %8. Since it's aligned, optimizer makes it a zero. The
correct expression is:
([reg:A & -8] << (56 - (((reg:FP+reg:B-1) & 0x7) << 3))) >> 56

This is actually a 13-year-old bug. Checked by Miod; a few files
in the kernel were affected. Spotted with SSP for Alpha.
OK miod@. Tested by naddy@.

show more ...

Merge from gcc3 our configuration for alpha, including these local
changes:

* Do not force -msmall-data if -fpic and -mlarge-data if -fPIC.
Instead, have both -fpic and -fPIC only select pic code ge

Merge from gcc3 our configuration for alpha, including these local
changes:

* Do not force -msmall-data if -fpic and -mlarge-data if -fPIC.
Instead, have both -fpic and -fPIC only select pic code generation,
and use whatever memory mode is specified (with -mlarge-data being
the implicit default).

* -Wstack-larger-than support.

* Disable stack frame checking in the prologue under OpenBSD, unless
you compile with -fstack-check, for consistency with other platforms.

* -mno-ieee option to disable IEEE mode.

ok kettenis@

show more ...

import of gcc-4.2.1, the last gcc release under GPLv2