[AArch64] [-mtune cleanup 1/5] Remove -march=generic.

[James Greenhalgh]

Hi,

This option was never documented anywhere, is meaningless
and generates unhelpful code. Better we remove it.

Tested on aarch64-none-elf in series with no regressions.

OK?

Thanks,
James

---
gcc/

2013-11-13  James Greenhalgh  <james.greenha...@arm.com>

        * config/aarch64/aarch64.c (all_architectures): Remove "generic".

diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index 8458cac..5fba692 100644
--- a/gcc/config/aarch64/aarch64.c
+++ b/gcc/config/aarch64/aarch64.c
@@ -251,7 +251,6 @@ static const struct processor all_architectures[] =
   {NAME, CORE, #ARCH, FLAGS, NULL},
 #include "aarch64-arches.def"
 #undef AARCH64_ARCH
-  {"generic", generic, "8", AARCH64_FL_FOR_ARCH8, NULL},
   {NULL, aarch64_none, NULL, 0, NULL}
 };