https://bugs.llvm.org/show_bug.cgi?id=51344
Bug ID: 51344
Summary: Can't compile C std= for nvptx64
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
int main() {}
clang -std=c99 -fopenmp -fopenmp-targets=nvptx64-nvidia-cuda
opt/compiler-explorer/clang-trunk-20210804/lib/clang/14.0.0/include/__clang_cuda_device_functions.h:40:63:
error: use of undeclared identifier 'asm'
__DEVICE__ void __attribute__((overloadable)) __brkpt(void) { asm
volatile("brkpt;"); }
https://godbolt.org/z/9TMc9oPMW
That would be because 'asm' is a gnu extension and I passed std=c99.
Clang accepts __asm or __asm__ when the header is included in openmp. As far as
I can tell, cuda accepts all three.
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