Commit message (Collapse) | Author | Age | Files | Lines | |
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* | ARM: allow copying of CPSR when all else fails. | Tim Northover | 2014-10-01 | 1 | -0/+41 |
As with x86 and AArch64, certain situations can arise where we need to spill CPSR in the middle of a calculation. These should be avoided where possible (MRS/MSR is rather expensive), which ARM is actually better at than the other two since it tries to Glue defs to uses, but as a last ditch effort, copying is better than crashing. rdar://problem/18011155 llvm-svn: 218789 |