[PATCH] D58388: [OpenCL] Simplify LLVM IR generated for OpenCL blocks

[Alexey Sotkin via Phabricator via cfe-commits]

AlexeySotkin created this revision.
AlexeySotkin added reviewers: Anastasia, yaxunl, svenvh.
AlexeySotkin added a project: clang.

Emit direct call of block invoke functions when possible, i.e. in case the
block is not passed as a function argument.
Also doing some refactoring of `CodeGenFunction::EmitBlockCallExpr()`


Repository:
  rC Clang

https://reviews.llvm.org/D58388

Files:
  lib/CodeGen/CGBlocks.cpp
  lib/CodeGen/CGOpenCLRuntime.cpp
  lib/CodeGen/CGOpenCLRuntime.h
  test/CodeGenOpenCL/blocks.cl
  test/CodeGenOpenCL/cl20-device-side-enqueue.cl

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