Cypherpunks repositories - gostls13.git/commit

author	fanzha02 <fannie.zhang@arm.com>
	Wed, 17 Jan 2018 10:25:26 +0000 (10:25 +0000)
committer	Cherry Zhang <cherryyz@google.com>
	Tue, 6 Feb 2018 00:25:23 +0000 (00:25 +0000)
commit	a0222ec518a80909060151ccbc275e67f3f03b60
tree	99405621257f505c374a1744eae0aa8589faf80d	tree
parent	595231763754e5fc3a8431a31f3ae893fd7d2d57	commit \| diff

cmd/internal/obj/arm64: fix assemble add/adds/sub/subs/cmp/cmn(extended register) bug

The current code encodes the wrong option value in the binary.

The fix reconstructs the function opxrrr() that does not encode the option
value into the binary value when arguments is sign or zero-extended register.

Add the relevant test cases and negative tests.

Fixes #23501
Change-Id: Ie5850ead2ad08d9a235a5664869aac5051762f1f
Reviewed-on: https://go-review.googlesource.com/88876
Run-TryBot: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>

src/cmd/asm/internal/arch/arm64.go		diff \| blob \| history
src/cmd/asm/internal/asm/testdata/arm64.s		diff \| blob \| history
src/cmd/asm/internal/asm/testdata/arm64error.s		diff \| blob \| history
src/cmd/internal/obj/arm64/asm7.go		diff \| blob \| history