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cmd/compile: disable Duff's device on darwin/arm64

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Darwin linker does not support BR26 reloc with non-zero addend.

Fixes #16724.

Change-Id: I1b5b4dc7159141bde3e273490f435c08c583afaf
Reviewed-on: https://go-review.googlesource.com/27081
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Dave Cheney <dave@cheney.net>
This commit is contained in:
Cherry Zhang 2016-08-16 05:57:38 -04:00
parent 6fd2d2cf16
commit 1e94d79f9d
1 changed files with 1 additions and 0 deletions
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src/cmd/compile/internal/ssa/config.go
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@ -181,6 +181,7 @@ func NewConfig(arch string, fe Frontend, ctxt *obj.Link, optimize bool) *Config
c.fpRegMask = fpRegMaskARM64
c.FPReg = framepointerRegARM64
c.hasGReg = true
c.noDuffDevice = obj.Getgoos() == "darwin" // darwin linker cannot handle BR26 reloc with non-zero addend
case "ppc64le":
c.IntSize = 8
c.PtrSize = 8