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Author SHA1 Message Date
Michael Kuperstein e1194bdb4f [X86] Make elfiamcu an OS, not an environment. 
GNU tools require elfiamcu to take up the entire OS field, so, e.g.
i?86-*-linux-elfiamcu is not considered a legal triple.
Make us compatible.

Differential Revision: http://reviews.llvm.org/D14081

llvm-svn: 251390
 2015-10-27 07:23:59 +00:00
Michael Kuperstein eaa16005af [X86] Use correct calling convention for MCU psABI libcalls 
When using the MCU psABI, compiler-generated library calls should pass
some parameters in-register. However, since inreg marking for x86 is currently
done by the front end, it will not be applied to backend-generated calls.

This is a workaround for PR3997, which describes a similar issue for -mregparm.

Differential Revision: http://reviews.llvm.org/D13977

llvm-svn: 251223
 2015-10-25 08:14:05 +00:00