[Bug optimization/14552] compiled trivial vector intrinsic code contains nearly twice as many instructions as needed

[michaelni at gmx dot at]

------- Additional Comments From michaelni at gmx dot at  2004-03-12 16:26 -------
sorry, no thats not the same code, it has 1 instruction more, uses a shift 
instead of a addition and writes the value to memory and reads it 
immedeatly afterwards, anyway iam not surprised that the bugreport got 
closed immedeatly 
 
gcc: 
movq    w, %mm1 
psllw   $1, %mm1     <------- 
movq    %mm1, w 
movq    w, %mm0     <------ 
movq    %mm0, dw 
 
human: 
movq w, %mm1  
paddw %mm1,%mm1  
movq %mm1, w  
movq %mm1,dw  

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14552