cmd/go: permit some more x86 compiler options

Permit -mssse3, -maes, -mvaes, and various -mavxNNN options.

Change-Id: If496df6b84eca37897fd603a6480c9f63e7f7382
Reviewed-on: https://go-review.googlesource.com/138476
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

src/cmd/go/internal/work/security.go

@@ -89,7 +89,9 @@ var validCompilerFlags = []*regexp.Regexp{
 	re(`-m32`),
 	re(`-m64`),
 	re(`-m(abi|arch|cpu|fpu|tune)=([^@\-].*)`),
+	re(`-m(no-)?v?aes`),
 	re(`-marm`),
+	re(`-m(no-)?avx[0-9a-z]*`),
 	re(`-mfloat-abi=([^@\-].*)`),
 	re(`-mfpmath=[0-9a-z,+]*`),
 	re(`-m(no-)?avx[0-9a-z.]*`),
@@ -100,6 +102,7 @@ var validCompilerFlags = []*regexp.Regexp{
 	re(`-miphoneos-version-min=(.+)`),
 	re(`-mnop-fun-dllimport`),
 	re(`-m(no-)?sse[0-9.]*`),
+	re(`-m(no-)?ssse3`),
 	re(`-mthumb(-interwork)?`),
 	re(`-mthreads`),
 	re(`-mwindows`),