bd483592a2
FLD1 pushes +1.0 to the 387 register stack, and FLDZ pushes +0.0 to the 387 regiser stack. They can be used to simplify MOVSSconst/MOVSDconst when the constant is +0.0, -0.0, +1.0, -1.0. The size of the go executable reduces about 62KB and the total size of pkg/linux_386 reduces about 7KB with this optimization. Change-Id: Icc8213b58262e0024a277cf1103812a17dd4b05e Reviewed-on: https://go-review.googlesource.com/119635 Run-TryBot: Ben Shi <powerman1st@163.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org> |
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The Go Programming Language
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