[PATCH] D135065: [BuildLibCalls] Use TLI to get 'int' and 'size_t' type sizes

[Bjorn Pettersson via Phabricator via llvm-commits]

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Stop assuming that an 'int' is 32 bits in helpers that emit libcalls
to lib functions that had 'int' in the signature. For most targets
this is NFC. For a target with 16 bit 'int' type this could help out
detecting if trying to emit a libcall with incorrect signature.

Similarly we now derive the type mapping to 'size_t' by asking TLI
about the size of 'size_t'. This should be NFC (at least for in-tree
targets) since getSizeTSize(), in TLI, is deriving the size in the
same way as DataLayout::getIntPtrType().


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D135065

Files:
  llvm/include/llvm/IR/IRBuilder.h
  llvm/include/llvm/Transforms/Utils/BuildLibCalls.h
  llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
  llvm/lib/Transforms/Scalar/MergeICmps.cpp
  llvm/lib/Transforms/Utils/BuildLibCalls.cpp
  llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp

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