P4 to Git Change 1261645 by smekhano@stas-nova-hsa on 2016/04/25 18:33:13

SWDEV-92625 - x86 RT: fix division by zero in cpumapping::HCtoDCmap
	In many cases default alignment passed as 0. At the same time minimal possible alignment is 1,
	while cpumappings uses this value as a divisor. Set it to max(passed alignment, 1).

	Testing: smoke, precheckin, conformance really quick on cpu
	Reviewed by German Andreev

Affected files ...

... //depot/stg/opencl/drivers/opencl/runtime/device/cpu/cpumapping.cpp#5 edit

rocclr/runtime/device/cpu/cpumapping.cpp

@@ -27,6 +27,7 @@ using std::max;
 namespace cpu {
     HCtoDCmap::HCtoDCmap(const clk_parameter_descriptor_t* desc, unsigned int level_alignment, unsigned int index, unsigned int init_offset)
     {
+        level_alignment = std::max(level_alignment, 1u); // Minimal possible alignment is 1 and alignment is used as a divisor below.
         //Initialize fields
         hc_offset = 0;
         hc_size = 0;