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James Y Knight 13680223b9 [opaque pointer types] Add a FunctionCallee wrapper type, and use it. 
Recommit r352791 after tweaking DerivedTypes.h slightly, so that gcc
doesn't choke on it, hopefully.

Original Message:
The FunctionCallee type is effectively a {FunctionType*,Value*} pair,
and is a useful convenience to enable code to continue passing the
result of getOrInsertFunction() through to EmitCall, even once pointer
types lose their pointee-type.

Then:
- update the CallInst/InvokeInst instruction creation functions to
  take a Callee,
- modify getOrInsertFunction to return FunctionCallee, and
- update all callers appropriately.

One area of particular note is the change to the sanitizer
code. Previously, they had been casting the result of
`getOrInsertFunction` to a `Function*` via
`checkSanitizerInterfaceFunction`, and storing that. That would report
an error if someone had already inserted a function declaraction with
a mismatching signature.

However, in general, LLVM allows for such mismatches, as
`getOrInsertFunction` will automatically insert a bitcast if
needed. As part of this cleanup, cause the sanitizer code to do the
same. (It will call its functions using the expected signature,
however they may have been declared.)

Finally, in a small number of locations, callers of
`getOrInsertFunction` actually were expecting/requiring that a brand
new function was being created. In such cases, I've switched them to
Function::Create instead.

Differential Revision: https://reviews.llvm.org/D57315

llvm-svn: 352827
 		2019-02-01 02:28:03 +00:00
clang [opaque pointer types] Add a FunctionCallee wrapper type, and use it. 2019-02-01 02:28:03 +00:00
clang-tools-extra [clangd] A code action to swap branches of an if statement 2019-01-31 21:30:05 +00:00
compiler-rt Mark __rela_iplt_{start,end} as weak. 2019-02-01 00:43:31 +00:00
debuginfo-tests Set config.lit_tools_dir, which is needed by lit.llvm.initialize. 2018-11-06 21:54:27 +00:00
libclc Adjust documentation for git migration. 2019-01-29 16:37:27 +00:00
libcxx Fix a bit of libc++-specific behavior in the regex tests; add a missing test. Reviewed as https://reviews.llvm.org/D57391 Thanks to Andrey Maksimov for the patch 2019-01-31 18:54:26 +00:00
libcxxabi [CMake] Use correct visibility for linked libraries in CMake 2019-01-30 23:18:05 +00:00
libunwind [CMake] Use correct visibility for linked libraries in CMake 2019-01-30 23:18:05 +00:00
lld [ELF] Support --{,no-}allow-shlib-undefined 2019-02-01 02:25:05 +00:00
lldb [unittest] Fix scalar unit test. 2019-01-31 18:48:17 +00:00
llgo Adjust documentation for git migration. 2019-01-29 16:37:27 +00:00
llvm [opaque pointer types] Add a FunctionCallee wrapper type, and use it. 2019-02-01 02:28:03 +00:00
openmp [OMPT] Make sure that OMPT is enabled when accessing internals of the runtime 2019-01-30 08:41:06 +00:00
parallel-libs Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
polly Adjust documentation for git migration. 2019-01-29 16:37:27 +00:00
pstl Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
.arcconfig Update monorepo .arcconfig with new project callsign. 2019-01-31 14:34:59 +00:00
.clang-format Add .clang-tidy and .clang-format files to the toplevel of the 2019-01-29 16:43:16 +00:00
.clang-tidy Add .clang-tidy and .clang-format files to the toplevel of the 2019-01-29 16:43:16 +00:00
README.md
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README.md

The LLVM Compiler Infrastructure

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.