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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2009-04-30 21:22:44 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2009-04-30 21:22:44 +0000 |
| commit | 7afcc6aa270ca51e502de9f826ecdf61568a73b9 (patch) | |
| tree | b69b86fe2a0bc09cdfe09cf92cde407fa9369eda /lib/CodeGen/LiveVariables.cpp | |
| parent | 3d739fe3756bf67be23c2ca54ec7b04bef89bfe0 (diff) | |
Slightly change TableGen's definition of a register subclass.
A subclass is allowed to have a larger spill size than the superclass, and the
spill alignment must be a multiple of the superclass alignment. This causes
the following new subclass relations:
=== Alpha ===
F4RC -> F8RC
=== PPC ===
F4RC -> F8RC
=== SPU ===
R8C -> R16C -> R32C/R32FP -> R64C/R64FP -> GPRC/VECREG
=== X86 ===
FR32 -> FR64 -> VR128
RFP32 -> RFP64 -> RFP80
These subclass relations are consistent with the behaviour of -join-cross-class-copies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70511 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LiveVariables.cpp')
0 files changed, 0 insertions, 0 deletions