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Add builtins to generate instructions for tail-allocated arrays in SIL.

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Those builtins are: allocWithTailElems_<n>, getTailAddr and projectTailElems
Also rename the "gep" builtin, which indexes raw bytes, to "gepRaw" and add a new "gep" builtin to index in a typed array.
This commit is contained in:
Erik Eckstein
2016-09-09 13:52:20 -07:00
parent 34a4e6df0a
commit d89a21460e
9 changed files with 256 additions and 20 deletions
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2
lib/SIL/SILModule.cpp
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@@ -463,6 +463,8 @@ const BuiltinInfo &SILModule::getBuiltinInfo(Identifier ID) {
Info.ID = BuiltinValueKind::AtomicLoad;
else if (OperationName.startswith("atomicstore_"))
Info.ID = BuiltinValueKind::AtomicStore;
else if (OperationName.startswith("allocWithTailElems_"))
Info.ID = BuiltinValueKind::AllocWithTailElems;
else {
// Switch through the rest of builtins.
Info.ID = llvm::StringSwitch<BuiltinValueKind>(OperationName)