Iain Sandoe e0b4cb62f5 [Powerpc darwin] AsmParser Base implementation.
This is a base implementation of the powerpc-apple-darwin asm parser dialect.

* Enables infrastructure (essentially isDarwin()) and fixes up the parsing of asm directives to separate out ELF and MachO/Darwin additions.
* Enables parsing of {r,f,v}XX as register identifiers.
* Enables parsing of lo16() hi16() and ha16() as modifiers.

The changes to the test case are from David Fang (fangism).

llvm-svn: 197324
2013-12-14 13:34:02 +00:00
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