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| author | Ben Shi <powerman1st@163.com> | 2018-04-09 11:12:15 +0000 |
|---|---|---|
| committer | Cherry Zhang <cherryyz@google.com> | 2018-04-12 19:48:44 +0000 |
| commit | 9be1921042b6b81b7f16fa8640ddc5868af6d31e (patch) | |
| tree | 20cb401e112d42ace2c089f83126249a09fb4068 /src/encoding | |
| parent | c1ed1f3c80fb33b4f0a17eb14da19be05eda492f (diff) | |
| download | go-9be1921042b6b81b7f16fa8640ddc5868af6d31e.tar.xz | |
cmd/internal/obj/arm64: optimize constant pool
"MOVD $0xaaaaaaaa, R2"
"MOVD $-0x55555555, R3"
For the above instructions, 64-bit constants 0x00000000 aaaaaaaa
and 0xffffffff aaaaaaab are stored in the constant pool.
This CL optimizes them to
"MOVWU $0xaaaaaaaa, R2"
"MOVW $-0x05555555, R3"
and 32-bit constants 0xaaaaaaaa and 0xaaaaaaab are stored in the
constant pool.
There is a little size reduction (about total 5KB) in both the go
executable and the library files.
Change-Id: I7c4bfa6cd9c07da99c69a8f9c15010a0cce3b735
Reviewed-on: https://go-review.googlesource.com/105775
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Diffstat (limited to 'src/encoding')
0 files changed, 0 insertions, 0 deletions