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Author SHA1 Message Date
Francis Visoiu Mistrih c71cced0aa [CodeGen] Always use `printReg` to print registers in both MIR and debug 
output

As part of the unification of the debug format and the MIR format,
always use `printReg` to print all kinds of registers.

Updated the tests using '_' instead of '%noreg' until we decide which
one we want to be the default one.

Differential Revision: https://reviews.llvm.org/D40421

llvm-svn: 319445
 2017-11-30 16:12:24 +00:00
Matthias Braun c618a466f1 ARMFrameLowering: Only set ExtraCSSpill for actually unused registers. 
The code assumed that unclobbered/unspilled callee saved registers are
unused in the function. This is not true for callee saved registers that are
also used to pass parameters such as swiftself.

rdar://33401922

llvm-svn: 309350
 2017-07-28 01:36:32 +00:00