--- Comment #2 from xuepeng dot guo at intel dot com 2009-02-12 08:35
---
Confirmed at revision 144120. This is caused by macro
CONDITIONAL_REGISTER_USAGE at i386.h. At the first the code
if (! TARGET_SSE
--- Comment #3 from xuepeng dot guo at intel dot com 2009-02-12 08:50
---
The numbers 27 and 28 mean extended SSE registers xmm10 and xmm11. Because we
turned on the option -mno-sse, according to the explanation of
FIXED_REGISTERS in i386.h I think that setting fixed_regs[27
--- Comment #17 from xuepeng dot guo at intel dot com 2009-02-09 09:16
---
Below is a loop in the case in its original form(compiled by GCC 4.4):
_Z7bench_1PfS_fj:
.LFB2309:
shrl$2, %edx
shufps $0, %xmm0, %xmm0
subl$1, %edx
xorl%eax, %eax
--- Comment #8 from xuepeng dot guo at intel dot com 2009-01-24 05:12
---
Created an attachment (id=17173)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17173action=view)
An extracted test case for this bug.
Hi tim, I extracted this test case from your website. But I can't
--- Comment #1 from xuepeng dot guo at intel dot com 2008-10-16 07:36
---
Hello Jason, I posted the whole debug_info section of of the binary file of
your example as below. I guess you mean that DW_TAG_lexical_block tags like
those at 8c and 8d are unnecessary. We should avoid
--- Comment #3 from xuepeng dot guo at intel dot com 2008-10-17 04:58
---
Yes, I agree with you. Would you please explain your idea in more detailed way?
Please take what I posted in comment #1 as an example to show what should be
generated and what should not be generated. I am
--- Comment #10 from xuepeng dot guo at intel dot com 2008-08-12 02:07
---
(In reply to comment #7)
Sorry, I can't reproduce the first issue with a x86_64-linux - i?86-darwin
cross on the provided preprocessed testcase, tried many different
-march=/-mtune=
options as well as -f
--- Comment #11 from xuepeng dot guo at intel dot com 2008-08-12 02:11
---
(In reply to comment #9)
The darwin -m64 failures are then the same problem, cross-jumping of noreturn
calls between different level of stack depths.
I've been wrong about DW_CFA_GNU_args_size being useless
--- Comment #2 from xuepeng dot guo at intel dot com 2008-08-06 06:30
---
Created an attachment (id=16030)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16030action=view)
Testcase.
Hi, I got the similar failure on linux/x86 platform.
[EMAIL PROTECTED] minbuild]$
/home/xguo2
--- Comment #3 from xuepeng dot guo at intel dot com 2008-08-06 06:38
---
Created an attachment (id=16031)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16031action=view)
A smaller case.
[EMAIL PROTECTED] stackalign]$ /home/xguo2/app/stack-internal/bin/g++ -m32 -Os
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