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Michael Munday authored
TESTB was implemented as AND $0xff, Rx, REGTMP. Unfortunately there is no 3-operand AND-with-immediate instruction and so it was emulated by the assembler using two instructions. This CL uses CMPW instead of AND and also optimizes CMPW to use the chi instruction where possible. Overall this CL reduces the size of the .text section of the bin/go binary by ~2%. Change-Id: Ic335c29fc1129378fcbb1265bfb10f5b744a0f3f Reviewed-on: https://go-review.googlesource.com/30690 Run-TryBot: Michael Munday <munday@ca.ibm.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org>
45b26a93
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