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The Go programming language
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fanzha02 43b05173a2 cmd/compile: merge zero/sign extensions with UBFX/SBFX on arm64
The UBFX and SBFX already zero/sign extend the result. Further
zero/sign extensions are thus unnecessary as long as they leave
the top bits unaltered. This patch absorbs zero/sign extensions
into UBFX/SBFX.

Add the related test cases.

Change-Id: I7c4516c8b52d677f77bf3aaedab87c4a28056ec0
Reviewed-on: https://go-review.googlesource.com/c/go/+/265039
Trust: fannie zhang <Fannie.Zhang@arm.com>
Trust: Keith Randall <khr@golang.org>
Run-TryBot: fannie zhang <Fannie.Zhang@arm.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2021-09-06 03:31:43 +00:00
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api net: reduce allocations for UDP send/recv on Windows 2021-08-16 23:57:10 +00:00
doc image/draw: add RGBA64Image fast path 2021-09-03 01:38:54 +00:00
lib/time lib/time: fix RFC 6557 url 2021-08-15 02:18:46 +00:00
misc misc/wasm: enable ECMAScript strict mode 2021-09-03 19:56:09 +00:00
src cmd/compile: merge zero/sign extensions with UBFX/SBFX on arm64 2021-09-06 03:31:43 +00:00
test cmd/compile: merge zero/sign extensions with UBFX/SBFX on arm64 2021-09-06 03:31:43 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
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SECURITY.md

The Go Programming Language

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