[Ffmpeg-devel] gcc4 support & MMX fixups (from Debian) (original) (raw)
Aurelien Jacobs aurel
Thu Feb 2 01:39:08 CET 2006
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On Wed, 1 Feb 2006 18:03:26 +0100 Pawe? Sikora wrote:
Dnia Wednesday, 1 of February 2006 01:39, Aurelien Jacobs napisa?:
> > hmmm, the 4.1/4.0 fixedtranspose4x4 are equal but benchmarks differs. > > maybe origtranspose4x4 has different prologue? > > seems so. > > > [ 4.0 / -O2 ] > origtranspose4x4: > leal (%rdx,%rdx), %r8d > movslq %edx,%r10 > leaq (%rcx,%rcx,2), %rax > movslq %r8d,%r9 > addl %edx, %r8d > movslq %r8d,%r8 > #APP it's strange. pure 4.0.[2,3] gives the same prologue as 4.1. do you have a custom patches for 4.0.2?
$ gcc --version gcc (GCC) 4.0.3 20060115 (prerelease) (Debian 4.0.2-7)
Aurel
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