https://bugs.llvm.org/show_bug.cgi?id=40603
Bug ID: 40603
Summary: Double precision not working with -cl-std=c++
Product: clang
Version: 8.0
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: OpenCL
Assignee: unassignedclangb...@nondot.org
Reporter: dr...@jwdt.org
CC: anastasia.stul...@arm.com, llvm-bugs@lists.llvm.org
Usage of double precision floating point works with command line argument
-cl-std=CL2.0 but not with -cl-std=c++.
Compiling with -cl-std=c++ yields the following error:
error: use of type 'double' requires cl_khr_fp64 extension to be enabled
However, enabling the cl_khr_fp64 extensions yields:
warning: unsupported OpenCL extension 'cl_khr_fp64' - ignoring
[-Wignored-pragmas]
For reference: the cl_khr_fp64 extensions works when I set a different -cl-std,
e.g. CL2.0
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