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[Bug target/26658] [4.0/4.1/4.2 Regression] perfomance regression between gcc 3.4.5 and 4.*
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 4 Jun 2006 19:54:51 -0000
- Subject: [Bug target/26658] [4.0/4.1/4.2 Regression] perfomance regression between gcc 3.4.5 and 4.*
- References: <bug-26658-12348@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #6 from pinskia at gcc dot gnu dot org 2006-06-04 19:54 -------
for(uint32_t i = 0; i < Loops; i+=1)
{
#define T memcpy(mb1, mb2, Block_Size); memset(mb2, i, Block_Size);
T T T T T
T T T T T
#undef T
}
That should just reduce to
memcpy(mb1, mb2, Block_Size); memset(mb2, i, Block_Size);
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|regression |target
GCC target triplet| |i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26658