[llvm-bugs] [Bug 41007] New: -finclude-default-header doesn't work with -cl-std=c++

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=41007

            Bug ID: 41007
           Summary: -finclude-default-header doesn't work with -cl-std=c++
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: OpenCL
          Assignee: unassignedclangbugs at nondot.org
          Reporter: kevin.petit at arm.com
                CC: anastasia.stulova at arm.com, llvm-bugs at lists.llvm.org

Trying to compile the following test program:

-------------------------------------------------------
kernel void test(__global int* ptr)
{
}
-------------------------------------------------------

with the following command line (rev 355676):

clang -cc1 -triple spir64-unknown-unknown -finclude-default-header -emit-llvm
-x cl -cl-std=c++ test.cl

leads to the following error:

-------------------------------------------------------
In file included from <built-in>:1:
/work/mpg/repos/llvm-project/build/lib/clang/9.0.0/include/opencl-c.h:14472:5:
error: invalid prototype, variadic arguments are not allowed in OpenCL
int printf(__constant const char* st, ...) __attribute__((format(printf, 1,
2)));
    ^
1 error generated.
-------------------------------------------------------

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