Tom Stellard 47e2407968 GlobalISel: Use a callback to compute constrained reg class for unallocatble registers ... Summary: constrainOperandRegClass() currently fails if it tries to constrain the register class of an operand that is defeined with an unallocatable register class. This patch resolves this by adding a target callback to compute register constriants in this case. This is required by the AMDGPU because many of its instructions have source opreands defined with the unallocatable register classe VS_32 which is a union of two allocatable register classes VGPR_32 and SReg_32. Reviewers: dsanders, aditya_nandakumar Reviewed By: aditya_nandakumar Subscribers: rovka, kristof.beyls, tpr, llvm-commits Differential Revision: https://reviews.llvm.org/D45991 llvm-svn: 331485		2018-05-03 21:44:16 +00:00
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llvm	GlobalISel: Use a callback to compute constrained reg class for unallocatble registers	2018-05-03 21:44:16 +00:00
llvm-c	Remove \brief commands from doxygen comments.	2018-05-01 15:54:18 +00:00