[PATCH] D123627: Correctly diagnose prototype redeclaration errors in C

[Ulrich Weigand via Phabricator via cfe-commits]

uweigand added a comment.

It looks like this caused the LNT build bot to fail (at least on s390x), because one of the test cases now triggers this error:
https://lab.llvm.org/buildbot/#/builders/45/builds/6787

  /usr/bin/make -f SingleSource/Regression/C/gcc-c-torture/execute/ieee/CMakeFiles/GCC-C-execute-ieee-compare-fp-4.dir/build.make SingleSource/Regression/C/gcc-c-torture/execute/ieee/CMakeFiles/GCC-C-execute-ieee-compare-fp-4.dir/build
  /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/test/test-suite/SingleSource/Regression/C/gcc-c-torture/execute/ieee/20030331-1.c:6:1: error: conflicting types for 'rintf'
  rintf ()
  ^
  /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/test/test-suite/SingleSource/Regression/C/gcc-c-torture/execute/ieee/20030331-1.c:6:1: note: previous implicit declaration is here
  make[2]: Entering directory '/home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/test/sandbox/build'
  /home/uweigand/sandbox/buildbot/clang-s390x-linux-lnt/test/test-suite/SingleSource/Regression/C/gcc-c-torture/execute/ieee/20030331-1.c:29:14: error: too few arguments to function call, expected 1, have 0
    if (rintf () != -2.0)
        ~~~~~  ^
  2 errors generated.

I guess the error is valid, but should either be disabled for this LNT test, or else the test fixed.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D123627/new/

https://reviews.llvm.org/D123627