module &module:1:0:$full:$large:$default;

/* Tests for fbarrier. */

/* { dg-do compile } */
/* { dg-options "-fdump-tree-gimple" } */

fbarrier &fb_module_scope;

prog function &subfunction(arg_u32 %return_value)() {

     workitemflatabsid_u32 $s3;
     cvt_b1_u32 $c1, $s3;
     cbr_width(all)_b1 $c1, @skip_fbar;
     waitfbar &fb_module_scope;
@skip_fbar:

     st_arg_u32 $s3, [%return_value];
     ret;
};

prog kernel &kernel(kernarg_u64 %input_ptr, kernarg_u64 %output_ptr)
{
	fbarrier %fb_func_scope;

        ld_kernarg_u64 $d0, [%input_ptr];
        ld_global_u32 $s0, [$d0];

	workitemflatabsid_u32 $s1;
	cvt_b1_u32 $c1, $s1;
	cbr_width(all)_b1 $c1, @skip_init;

	initfbar &fb_module_scope;
	initfbar %fb_func_scope;

        joinfbar &fb_module_scope;

@skip_init:
	barrier_width(all);

        joinfbar %fb_func_scope;

	{
		arg_u32 %return_value;
		call &subfunction(%return_value)();
		ld_arg_u32 $s1, [%return_value];
	}
	arrivefbar %fb_func_scope;

        ld_kernarg_u64 $d1, [%output_ptr];
        st_global_u32 $s1, [$d0];

	workitemflatabsid_u32 $s1;
	cvt_b1_u32 $c0, $s1;
	cbr_width(all)_b1 $c0, @skip_fini;

	releasefbar &fb_module_scope;
	releasefbar %fb_func_scope;

@skip_fini:

};
/* fbarriers are allocated from the group memory in the order of 
   appearance. The current implementation allocates 32B per fbarrier. */

/* { dg-final { scan-tree-dump "__hsail_waitfbar \\\(0, __context\\\);" "gimple"} } */
/* { dg-final { scan-tree-dump "__hsail_initfbar \\\(0, __context\\\);" "gimple"} } */
/* { dg-final { scan-tree-dump "__hsail_initfbar \\\(__group_local_offset, __context\\\);" "gimple"} } */
/* { dg-final { scan-tree-dump "__hsail_joinfbar \\\(0, __context\\\);" "gimple"} } */
/* { dg-final { scan-tree-dump "@skip_init:\[\n ]+__builtin___hsail_barrier \\\(__context\\\);\[\n ]+__builtin___hsail_joinfbar \\\(__group_local_offset, __context\\\);" "gimple"} } */

/* { dg-final { scan-tree-dump "__hsail_arrivefbar \\\(__group_local_offset, __context\\\);" "gimple"} } */

/* { dg-final { scan-tree-dump "__hsail_releasefbar \\\(0, __context\\\);\[\n ]+__builtin___hsail_releasefbar \\\(__group_local_offset, __context\\\);" "gimple"} } */