search for: 03a70229

Displaying 4 results from an estimated 4 matches for "03a70229".

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[LLVMdev] Spilled variables using unaligned moves
2008 Jul 14
5
[LLVMdev] Spilled variables using unaligned moves
...optimization opportunity. The attached replacement of fibonacci.cpp generates x86 code like this: 03A70010 push ebp 03A70011 mov ebp,esp 03A70013 and esp,0FFFFFFF0h 03A70019 sub esp,1A0h ... 03A7006C movups xmmword ptr [esp+180h],xmm7 ... 03A70229 mulps xmm1,xmmword ptr [esp+180h] ... 03A70682 movups xmm0,xmmword ptr [esp+180h] Note how stores and loads use unaligned moves while it could use aligned moves. It's also interesting that the multiply does correctly assume the stack to be 16-byte aligned. Is there someth...
[LLVMdev] Spilled variables using unaligned moves
2008 Jul 14
0
[LLVMdev] Spilled variables using unaligned moves
...tached replacement of fibonacci.cpp generates x86 code like > this: > > 03A70010 push ebp > 03A70011 mov ebp,esp > 03A70013 and esp,0FFFFFFF0h > 03A70019 sub esp,1A0h > ... > 03A7006C movups xmmword ptr [esp+180h],xmm7 > ... > 03A70229 mulps xmm1,xmmword ptr [esp+180h] > ... > 03A70682 movups xmm0,xmmword ptr [esp+180h] > > Note how stores and loads use unaligned moves while it could use > aligned moves. It’s also interesting that the multiply does > correctly assume the stack to be 16-byte alig...
[LLVMdev] Spilled variables using unaligned moves
2008 Jul 14
0
[LLVMdev] Spilled variables using unaligned moves
...tached replacement of fibonacci.cpp generates x86 code like > this: > > 03A70010 push ebp > 03A70011 mov ebp,esp > 03A70013 and esp,0FFFFFFF0h > 03A70019 sub esp,1A0h > ... > 03A7006C movups xmmword ptr [esp+180h],xmm7 > ... > 03A70229 mulps xmm1,xmmword ptr [esp+180h] > ... > 03A70682 movups xmm0,xmmword ptr [esp+180h] > > Note how stores and loads use unaligned moves while it could use > aligned moves. It’s also interesting that the multiply does > correctly assume the stack to be 16-byte alig...
[LLVMdev] Spilled variables using unaligned moves
2008 Jul 15
1
[LLVMdev] Spilled variables using unaligned moves
...an optimization opportunity. The attached replacement of fibonacci.cpp generates x86 code like this: 03A70010 push ebp 03A70011 mov ebp,esp 03A70013 and esp,0FFFFFFF0h 03A70019 sub esp,1A0h ... 03A7006C movups xmmword ptr [esp+180h],xmm7 ... 03A70229 mulps xmm1,xmmword ptr [esp+180h] ... 03A70682 movups xmm0,xmmword ptr [esp+180h] Note how stores and loads use unaligned moves while it could use aligned moves. It's also interesting that the multiply does correctly assume the stack to be 16-byte aligned. Is there someth...