mirror of
https://github.com/golang/go
synced 2024-09-24 07:10:12 -06:00
runtime: remove unused cpu architecture feature variables from binaries
On amd64 this reduces go binary sizes by 176 bytes due to not referencing internal/cpu.ARM64 and internal/cpu.ARM. Change-Id: I8e4f31e2b1939b05eec2148b44d7cff7e0aeb30e Reviewed-on: https://go-review.googlesource.com/c/go/+/344329 Trust: Martin Möhrmann <martin@golang.org> Run-TryBot: Martin Möhrmann <martin@golang.org> Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Go Bot <gobot@golang.org>
This commit is contained in:
parent
457418b475
commit
c1a14781ec
@ -622,13 +622,18 @@ func cpuinit() {
|
||||
|
||||
// Support cpu feature variables are used in code generated by the compiler
|
||||
// to guard execution of instructions that can not be assumed to be always supported.
|
||||
x86HasPOPCNT = cpu.X86.HasPOPCNT
|
||||
x86HasSSE41 = cpu.X86.HasSSE41
|
||||
x86HasFMA = cpu.X86.HasFMA
|
||||
switch GOARCH {
|
||||
case "386", "AMD64":
|
||||
x86HasPOPCNT = cpu.X86.HasPOPCNT
|
||||
x86HasSSE41 = cpu.X86.HasSSE41
|
||||
x86HasFMA = cpu.X86.HasFMA
|
||||
|
||||
armHasVFPv4 = cpu.ARM.HasVFPv4
|
||||
case "arm":
|
||||
armHasVFPv4 = cpu.ARM.HasVFPv4
|
||||
|
||||
arm64HasATOMICS = cpu.ARM64.HasATOMICS
|
||||
case "arm64":
|
||||
arm64HasATOMICS = cpu.ARM64.HasATOMICS
|
||||
}
|
||||
}
|
||||
|
||||
// The bootstrap sequence is:
|
||||
|
Loading…
Reference in New Issue
Block a user