[EMAIL PROTECTED] wrote on 28/04/2008 12:36:44:
Hello,
I am looking at a testsuite failure (wo_prof_global_var.c) in my
porting. Somehow, I found GCC 4.3.0 seems to generate unnecessary malloc
during structure optimization. In the code, the structure is split into
two individual fields
On Thu, May 1, 2008 at 2:19 PM, Olga Golovanevsky [EMAIL PROTECTED] wrote:
[EMAIL PROTECTED] wrote on 28/04/2008 12:36:44:
Hello,
I am looking at a testsuite failure (wo_prof_global_var.c) in my
porting. Somehow, I found GCC 4.3.0 seems to generate unnecessary malloc
during
To: Bingfeng Mei
Cc: gcc@gcc.gnu.org; Kenneth Zadeck
Subject: Re: Redundant malloc in structure optimization?
(testsuite/gcc.dg/struct/wo_prof_global_var.c)
[EMAIL PROTECTED] wrote on 28/04/2008 12:36:44:
Hello,
I am looking at a testsuite failure (wo_prof_global_var.c) in my
porting
: Redundant malloc in structure optimization?
(testsuite/gcc.dg/struct/wo_prof_global_var.c)
[EMAIL PROTECTED] wrote on 28/04/2008 12:36:44:
Hello,
I am looking at a testsuite failure (wo_prof_global_var.c) in my
porting. Somehow, I found GCC 4.3.0 seems to generate unnecessary
malloc
:19
To: Bingfeng Mei
Cc: gcc@gcc.gnu.org; Kenneth Zadeck
Subject: Re: Redundant malloc in structure optimization?
(testsuite/gcc.dg/struct/wo_prof_global_var.c)
[EMAIL PROTECTED] wrote on 28/04/2008 12:36:44:
Hello,
I am looking at a testsuite failure (wo_prof_global_var.c) in my
Bingfeng Mei [EMAIL PROTECTED] wrote on 01/05/2008 16:02:16:
Olga,
Yes, I agree the p is global. But how p is going to be accessed if
another file uses p? D.2215 represents the original p, but it is not
initialized as p.0.4 and p.0.3 do. It won't be correct if other file
tried to use it.
Richard Guenther [EMAIL PROTECTED] wrote on 01/05/2008 16:00:44:
On Thu, May 1, 2008 at 2:19 PM, Olga Golovanevsky [EMAIL PROTECTED]
wrote:
[EMAIL PROTECTED] wrote on 28/04/2008 12:36:44:
Hello,
I am looking at a testsuite failure (wo_prof_global_var.c) in my
porting.
On Thu, May 1, 2008 at 10:42 PM, Olga Golovanevsky [EMAIL PROTECTED] wrote:
Richard Guenther [EMAIL PROTECTED] wrote on 01/05/2008 16:00:44:
On Thu, May 1, 2008 at 2:19 PM, Olga Golovanevsky [EMAIL PROTECTED]
wrote:
[EMAIL PROTECTED] wrote on 28/04/2008 12:36:44:
Sure, a malloc call has side-effects, so a DCE pass cannot just remove it.
Only struct-reorg knows that it has replaced all side-effects with others.
Malloc only has side effects if the result is used.
For example, LLVM will transform
int main(int argc, char** argv){
On Thu, May 1, 2008 at 5:10 PM, Daniel Berlin [EMAIL PROTECTED] wrote:
Sure, a malloc call has side-effects, so a DCE pass cannot just remove it.
Only struct-reorg knows that it has replaced all side-effects with others.
Malloc only has side effects if the result is used.
For
Hello,
I am looking at a testsuite failure (wo_prof_global_var.c) in my
porting. Somehow, I found GCC 4.3.0 seems to generate unnecessary malloc
during structure optimization. In the code, the structure is split into
two individual fields (D.2240 and D.2242) and they are allocated
separately. But
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