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author | Ahmed Bougacha <ahmed.bougacha@gmail.com> | 2013-05-31 23:45:26 +0000 |
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committer | Ahmed Bougacha <ahmed.bougacha@gmail.com> | 2013-05-31 23:45:26 +0000 |
commit | 23ed37a6b76e79272194fb46597f7280661b828f (patch) | |
tree | a2c447458a013a1f1bcbdc84d43fe3c55c416a0d /include/llvm/Target/Target.td | |
parent | cd8e3c4dcf4383b8b1c16827c6326f6e9bc49d51 (diff) | |
download | external_llvm-23ed37a6b76e79272194fb46597f7280661b828f.zip external_llvm-23ed37a6b76e79272194fb46597f7280661b828f.tar.gz external_llvm-23ed37a6b76e79272194fb46597f7280661b828f.tar.bz2 |
Make SubRegIndex size mandatory, following r183020.
This also makes TableGen able to compute sizes/offsets of synthesized
indices representing tuples.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183061 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/Target/Target.td')
-rw-r--r-- | include/llvm/Target/Target.td | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/include/llvm/Target/Target.td b/include/llvm/Target/Target.td index c201f6b..a9644d4 100644 --- a/include/llvm/Target/Target.td +++ b/include/llvm/Target/Target.td @@ -22,13 +22,16 @@ include "llvm/IR/Intrinsics.td" class RegisterClass; // Forward def // SubRegIndex - Use instances of SubRegIndex to identify subregisters. -class SubRegIndex<int size = -1, int offset = 0> { +class SubRegIndex<int size, int offset = 0> { string Namespace = ""; // Size - Size (in bits) of the sub-registers represented by this index. int Size = size; // Offset - Offset of the first bit that is part of this sub-register index. + // Set it to -1 if the same index is used to represent sub-registers that can + // be at different offsets (for example when using an index to access an + // element in a register tuple). int Offset = offset; // ComposedOf - A list of two SubRegIndex instances, [A, B]. @@ -58,7 +61,9 @@ class SubRegIndex<int size = -1, int offset = 0> { // ComposedSubRegIndex - A sub-register that is the result of composing A and B. // Offset is set to the sum of A and B's Offsets. Size is set to B's Size. class ComposedSubRegIndex<SubRegIndex A, SubRegIndex B> - : SubRegIndex<B.Size, -1> { + : SubRegIndex<B.Size, !if(!eq(A.Offset, -1), -1, + !if(!eq(B.Offset, -1), -1, + !add(A.Offset, B.Offset)))> { // See SubRegIndex. let ComposedOf = [A, B]; } |