Bug#877316: clblas: Crashes on single-precision-only hardware, due to double-precision literals

[Rebecca N. Palmer]

Package: libclblas2
Version: 2.12-1
Control: tags -1 upstream
Control: affects -1 beignet-opencl-icd

Some clblas operations use '0.0' (a double-precision literal) not '0.0f' 
(a single-precision literal) even when processing single-precision arrays.

This causes it to crash on GPUs that don't support double precision:

ASSERTION FAILED: sel.hasDoubleType()
   at file 
/build/beignet-1.3.1/backend/src/backend/gen_insn_selection.cpp, 
function void 
gbe::ConvertInstructionPattern::convertBetweenFloatDouble(gbe::Selection::Opaque&, 
const gbe::ir::ConvertInstruction&, bool&) const, line 6148

This particular 0.0 appears to have come from 
http://sources.debian.net/src/clblas/2.12-1/src/library/blas/AutoGemm/KernelOpenCL.py/#L368, 
but there may well be more.

This issue also exists in upstream git.