search for: 03a70019

Displaying 4 results from an estimated 4 matches for "03a70019".

Did you mean: 03a70010
[LLVMdev] Spilled variables using unaligned moves
2008 Jul 14
5
[LLVMdev] Spilled variables using unaligned moves
...ector spills don't use aligned 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...
[LLVMdev] Spilled variables using unaligned moves
2008 Jul 14
0
[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 > ali...
[LLVMdev] Spilled variables using unaligned moves
2008 Jul 14
0
[LLVMdev] Spilled variables using unaligned moves
...opportunity. What target is this? Linux doesn'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 > ali...
[LLVMdev] Spilled variables using unaligned moves
2008 Jul 15
1
[LLVMdev] Spilled variables using unaligned moves
...e vector spills don't use aligned 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...