Hal Finkel 44b2b9dc1a [PowerPC] Add subregister classes for f64 VSX values ... We had stored both f64 values and v2f64, etc. values in the VSX registers. This worked, but was suboptimal because we would always spill 16-byte values even through we almost always had scalar 8-byte values. This resulted in an increase in stack-size use, extra memory bandwidth, etc. To fix this, I've added 64-bit subregisters of the Altivec registers, and combined those with the existing scalar floating-point registers to form a class of VSX scalar floating-point registers. The ABI code has also been enhanced to use this register class and some other necessary improvements have been made. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205075 91177308-0d34-0410-b5e6-96231b3b80d8		2014-03-29 05:29:01 +00:00
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PPCDisassembler.cpp	[PowerPC] Add subregister classes for f64 VSX values	2014-03-29 05:29:01 +00:00