Clang OpenCL errors and warnings

Hello everyone,

I am using Clang 11 for an OpenCL-SPIRV project.

When I try to convert some OpenCL programs into bytecode, I receive the following error message in some of them:
‘…/Programs/kernels/longest/longest_0038.cl:19:5: error: use of type ‘double’ requires cl_khr_fp64 extension to be enabled
double const t = 2 * (h + 2);’

Also, I receive some warnings like:

‘…/Programs/kernels/longest/longest_0038.cl:28:19: warning: incompatible pointer to integer conversion initializing ‘const __private int’ with an expression of type ‘__global int *’ [-Wint-conversion]
const int v = a + f * 2 + l % v;’

This OpenCL codes are automatically generated by a tool called “clgen” from github, that I am using as my OpenCL source code database.

This errors and warnings are given because the code is not well written or because I need to use more flags in my clang command?

I use this command to convert OpenCL programs into bytecode:
‘clang -cc1 -triple spir64 -emit-llvm-bc -finclude-default-header -cl-single-precision-constant -disable-llvm-passes INPUT.cl -o INPUT.bc’

Thanks in advance.