33ac854481
The -asmhdr flag is used to generate header files for assembly code such that that code has access to compile-time constants. During the build these constants end up in the (ephemeral) file go_asm.h. For historical reasons, floating-point and complex constants are printed with a 'p' exponent but with decimal mantissa; also, because of the compiler-internal precision of 512 bits, the mantissae are quite large (and conversions are comparatively slow). With the changes to the new Go 2 number literals, the respective upcoming changes to text/scanner (which in turn is used by the assembler) will make text/scanner newly accept hexadecimal floats; but also decimal floats using the incorrect 'p' exponent and report an error in that case. As a consequence, the assembler will report an error when trying to parse the before-mentioned decimal floating-point values which are using 'p' exponents. Since these constants are never needed in the assembly code, do not emit them in the first place. Change-Id: I06c7c96b04e8d062441120107992472f87a651b2 Reviewed-on: https://go-review.googlesource.com/c/161904 Run-TryBot: Robert Griesemer <gri@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> |
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The Go Programming Language
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