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| author | David Majnemer <david.majnemer@gmail.com> | 2015-11-11 21:57:16 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2015-11-11 21:57:16 +0000 |
| commit | f0f224d12dc474c144b1a1c1b6864ecc0b768a24 (patch) | |
| tree | 45d1ac7149f0a42417cb1491b9c3d3dda344e941 /llvm/lib/IR/LLVMContextImpl.h | |
| parent | 77f211c1aa2760cdf5f6f72cc490e95f6d0519d6 (diff) | |
| download | bcm5719-llvm-f0f224d12dc474c144b1a1c1b6864ecc0b768a24.tar.gz bcm5719-llvm-f0f224d12dc474c144b1a1c1b6864ecc0b768a24.zip | |
[IR] Add support for empty tokens
When working with tokens, it is often the case that one has instructions
which consume a token and produce a new token. Currently, we have no
mechanism to represent an initial token state.
Instead, we can create a notional "empty token" by inventing a new
constant which captures the semantics we would like. This new constant
is called ConstantTokenNone and is written textually as "token none".
Differential Revision: http://reviews.llvm.org/D14581
llvm-svn: 252811
Diffstat (limited to 'llvm/lib/IR/LLVMContextImpl.h')
| -rw-r--r-- | llvm/lib/IR/LLVMContextImpl.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/IR/LLVMContextImpl.h b/llvm/lib/IR/LLVMContextImpl.h index 24f22b43fc0..3403cd4acfb 100644 --- a/llvm/lib/IR/LLVMContextImpl.h +++ b/llvm/lib/IR/LLVMContextImpl.h @@ -924,6 +924,8 @@ public: ConstantInt *TheTrueVal; ConstantInt *TheFalseVal; + ConstantTokenNone *TheNoneToken; + // Basic type instances. Type VoidTy, LabelTy, HalfTy, FloatTy, DoubleTy, MetadataTy, TokenTy; Type X86_FP80Ty, FP128Ty, PPC_FP128Ty, X86_MMXTy; |
