[PATCH] D41184: [BuildLibCalls] Cast length argument to the correct integer type

[Igor Laevsky via Phabricator via llvm-commits]

igor-laevsky created this revision.
igor-laevsky added reviewers: spatel, eli.friedman, mehdi_amini, bogner.

Some library calls expect length argument which has pointer sized integer type. However we may create such calls with the actual length parameter typed with the different integer type. For such cases we need to emit correct cast instead of crashing with the assertion failure.

I believe it's hard to encounter in the real world practice but this comes up in the llvm-opt-fuzzer testing.


Repository:
  rL LLVM

https://reviews.llvm.org/D41184

Files:
  lib/Transforms/Utils/BuildLibCalls.cpp
  test/Transforms/InstCombine/strncmp-wrong-datalayout.ll

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