Artyom Skrobov 7cbf72b489 Handle ARMv6-J as an alias, instead of fake architecture
Summary:
This follows D14577 to treat ARMv6-J as an alias for ARMv6,
instead of an architecture in its own right.

The functional change is that the default CPU when targeting ARMv6-J
changes from arm1136j-s to arm1136jf-s, which is currently used as
the default CPU for ARMv6; both are, in fact, ARMv6-J CPUs.

The J-bit (Jazelle support) is irrelevant to LLVM, and it doesn't
affect code generation, attributes, optimizations, or anything else,
apart from selecting the default CPU.

Reviewers: rengolin, logan, compnerd

Subscribers: aemerson, llvm-commits, rengolin

Differential Revision: http://reviews.llvm.org/D14755

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253675 91177308-0d34-0410-b5e6-96231b3b80d8
2015-11-20 16:46:09 +00:00
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