Comment # 1
on bug 105869
from Jan Vesely
What is the clang/llvm version? I cannot reproduce using clang-5.0.1:
$ cat foo.cl
#pragma OPENCL EXTENSION cl_khr_fp64: enable
kernel void PulseWave(global float* buffer, size_t num_harmonics,
float duty_cycle)
{
size_t index = get_global_id(0);
float phase = buffer[index];
float sample = duty_cycle;
float precompute1 = (phase - duty_cycle / 2.0) * 2.0 * M_PI;
for (size_t i = 1; i <= num_harmonics; ++i)
{
float harmonic = 2.0 / (i * M_PI) * sin(M_PI * i * duty_cycle)
*
cos(i * precompute1);
sample += harmonic;
}
buffer[index] = sample * 2.0 - 1.0;
}
$ clang-5.0 -target amdgcn-mesa-mesa3d -Xclang -mlink-bitcode-file -Xclang
/usr/lib64/clc/carrizo-amdgcn-mesa-mesa3d.bc -include clc/clc.h -S foo.cl
$ clang-5.0 --version
clang version 5.0.1 (tags/RELEASE_501/final)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
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