[PATCH] D21070: Pass the ABI in the triple when appropriate (currently for MIPS) for 'clang -cc1' and 'clang -cc1as'

[Daniel Sanders via cfe-commits]

dsanders created this revision.
dsanders added a subscriber: cfe-commits.
dsanders added a dependency: D21069: [mips] Require that ABI's are passed in the triple within LLVM..
Herald added subscribers: srhines, danalbert, tberghammer.

'clang -cc1' and 'clang -cc1as' will mutate the triple to account for
-target-abi if such a conversion is defined by Triple::getABIVariant().
Otherwise, the ABI will continue to be passed via MCTargetOptions::ABIName.

Additionally, 'clang -cc1as' now applies the effect of -target-abi. Previously
it was ignored.

Depends on D21069

http://reviews.llvm.org/D21070

Files:
  lib/Basic/Targets.cpp
  lib/Driver/ToolChains.cpp
  lib/Driver/Tools.cpp
  lib/Frontend/CompilerInvocation.cpp
  tools/driver/cc1as_main.cpp

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