[llvm] r293799 - [IPSCCP] Don't propagate return values of functions marked as noinline.

[Hans Wennborg via llvm-commits]

On Wed, Feb 1, 2017 at 10:52 AM, Davide Italiano via llvm-commits
<llvm-commits at lists.llvm.org> wrote:
> Author: davide
> Date: Wed Feb  1 12:52:20 2017
> New Revision: 293799
>
> URL: http://llvm.org/viewvc/llvm-project?rev=293799&view=rev
> Log:
> [IPSCCP] Don't propagate return values of functions marked as noinline.
>
> This tries to address what Hal defined (in the post-commit review of
> r293727) a long-standing problem with noinline, where we end up
> de facto inlining trivial functions e.g.
>
> __attribute__((noinline)) int patatino(void) { return 5; }
>
> because of return value propagation.
>
> Added:
>     llvm/trunk/test/Transforms/IPConstantProp/noinline-return.ll
> Modified:
>     llvm/trunk/lib/Transforms/Scalar/SCCP.cpp

It seems this broke a test:
Clang :: CodeGen__link-bitcode-file.c
http://bb.pgr.jp/builders/cmake-clang-x86_64-linux/builds/59602