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Index > Compiler Internals > small bug in movmskpd instruction

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CandyMan



Joined: 04 Sep 2009
Posts: 311
Location: film "CandyMan" directed through Bernard Rose OR Candy Shop
CandyMan
Code:
use64
movmskpd r8,xmm9 ;\ the same code is generated
movmskpd r8d,xmm9;/    

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smaller is better
Post 21 Nov 2014, 19:52
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tthsqe



Joined: 20 May 2009
Posts: 730
tthsqe
and the same code should be generated. any write to lower 32 bits automatically zeroes the upper 32 bits.
Post 21 Nov 2014, 23:08
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