https://bugs.llvm.org/show_bug.cgi?id=52477
Bug ID: 52477
Summary: Fail to compile clang_hip_math with libc++
Product: OpenMP
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Clang Compiler Support
Assignee: unassignedclangb...@nondot.org
Reporter: jonathanchesterfi...@gmail.com
CC: llvm-bugs@lists.llvm.org
Reported by Wael Elwasif,
#include <omp.h>
#include <cmath>
#include <cstdio>
int main(int argc, char **argv){
double a = -1.0;
#pragma omp target map(tofrom: a)
{
a = std::abs(a);
}
printf("a = %lf\n", a);
}
...
In file included from
llvm/14.0.0-20211110/lib/clang/14.0.0/include/__clang_hip_math.h:18:
In file included from
llvm/14.0.0-20211110/bin/../include/c++/v1/algorithm:653:
...
llvm/14.0.0-20211110/bin/../include/c++/v1/__threading_support:735:12:
error: calling a private constructor of class 'std::__thread_id'
return __libcpp_thread_get_current_id();
OpenMP currently uses __clang_hip_math.h in the libm implementation. That
header includes <algorithm>, although amdgpu doesn't have a libc++, and that
includes shared_ptr and then threading_support and then falls over.
Fix is to drop algorithm from clang_hip_math.h, which really shouldn't be
including any of the c++ standard library
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