search for: 03a7006c

Displaying 4 results from an estimated 4 matches for "03a7006c".

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[LLVMdev] Spilled variables using unaligned moves
2008 Jul 14
5
[LLVMdev] Spilled variables using unaligned moves
...ves even though the stack is aligned. This seems like 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 ass...
[LLVMdev] Spilled variables using unaligned moves
2008 Jul 14
0
[LLVMdev] Spilled variables using unaligned moves
...d. This seems like 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 mu...
[LLVMdev] Spilled variables using unaligned moves
2008 Jul 14
0
[LLVMdev] Spilled variables using unaligned moves
...sn't have a 16-byte aligned stack. -Chris > > 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 mu...
[LLVMdev] Spilled variables using unaligned moves
2008 Jul 15
1
[LLVMdev] Spilled variables using unaligned moves
...moves even though the stack is aligned. This seems like 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 ass...