* [patch] work-arround for misscompilation of crtstuff
@ 2007-11-13 11:12 Victor Kaplansky
2007-11-13 13:41 ` Paolo Bonzini
2007-11-13 18:36 ` Mark Mitchell
0 siblings, 2 replies; 3+ messages in thread
From: Victor Kaplansky @ 2007-11-13 11:12 UTC (permalink / raw)
To: gcc-patches; +Cc: mark, rakdver, richard.guenther
Hi,
This patch turns off vectorization for crtstuff in order
to work-arround the problem caused by increased
alignment with enabled vectorization. See a disscussion in
http://gcc.gnu.org/ml/gcc-patches/2007-10/msg00832.html.
Bootstrapped on PPC64.
OK, for mainline testing?
-- Victor
2007-11-13 Victor Kaplansky <victork@il.ibm.com>
* Makefile.in (CRTSTUFF_CFLAGS): Add -fno-tree-vectorize
Index: Makefile.in
===================================================================
--- Makefile.in (revision 130086)
+++ Makefile.in (working copy)
@@ -571,7 +571,7 @@ TARGET_LIBGCC2_CFLAGS =
# Options to use when compiling crtbegin/end.
CRTSTUFF_CFLAGS = -O2 $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -g0 \
-finhibit-size-directive -fno-inline-functions -fno-exceptions \
- -fno-zero-initialized-in-bss -fno-toplevel-reorder \
+ -fno-zero-initialized-in-bss -fno-toplevel-reorder -fno-tree-vectorize \
$(INHIBIT_LIBC_CFLAGS)
# Additional sources to handle exceptions; overridden by targets as
needed.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [patch] work-arround for misscompilation of crtstuff
2007-11-13 11:12 [patch] work-arround for misscompilation of crtstuff Victor Kaplansky
@ 2007-11-13 13:41 ` Paolo Bonzini
2007-11-13 18:36 ` Mark Mitchell
1 sibling, 0 replies; 3+ messages in thread
From: Paolo Bonzini @ 2007-11-13 13:41 UTC (permalink / raw)
To: gcc-patches
Victor Kaplansky wrote:
> Hi,
>
> This patch turns off vectorization for crtstuff in order
> to work-arround the problem caused by increased
> alignment with enabled vectorization. See a disscussion in
> http://gcc.gnu.org/ml/gcc-patches/2007-10/msg00832.html.
>
> Bootstrapped on PPC64.
> OK, for mainline testing?
I don't like the approach, but it seemed that it was agreed upon. So okay.
Paolo
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [patch] work-arround for misscompilation of crtstuff
2007-11-13 11:12 [patch] work-arround for misscompilation of crtstuff Victor Kaplansky
2007-11-13 13:41 ` Paolo Bonzini
@ 2007-11-13 18:36 ` Mark Mitchell
1 sibling, 0 replies; 3+ messages in thread
From: Mark Mitchell @ 2007-11-13 18:36 UTC (permalink / raw)
To: Victor Kaplansky; +Cc: gcc-patches, rakdver, richard.guenther
Victor Kaplansky wrote:
> Hi,
>
> This patch turns off vectorization for crtstuff in order
> to work-arround the problem caused by increased
> alignment with enabled vectorization. See a disscussion in
> http://gcc.gnu.org/ml/gcc-patches/2007-10/msg00832.html.
>
> Bootstrapped on PPC64.
> OK, for mainline testing?
>
> -- Victor
>
> 2007-11-13 Victor Kaplansky <victork@il.ibm.com>
>
> * Makefile.in (CRTSTUFF_CFLAGS): Add -fno-tree-vectorize
OK.
If someone has a better solution, we can replace this with that, at that
point.
Thanks,
--
Mark Mitchell
CodeSourcery
mark@codesourcery.com
(650) 331-3385 x713
^ permalink raw reply [flat|nested] 3+ messages in thread
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2007-11-13 11:12 [patch] work-arround for misscompilation of crtstuff Victor Kaplansky
2007-11-13 13:41 ` Paolo Bonzini
2007-11-13 18:36 ` Mark Mitchell
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