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st/mesa: add support for memory barrier intrinsics

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Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Marek Olšák <marek.olsak@amd.com> (v2)

v1 -> v2: use TGSI_MEMBAR defines
This commit is contained in:
Ilia Mirkin
2016-01-17 04:32:42 -05:00
parent c0e1c54a4f
commit 792bab24ac
1 changed files with 45 additions and 0 deletions
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src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+45
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@@ -449,6 +449,7 @@ public:
void visit_atomic_counter_intrinsic(ir_call *);
void visit_ssbo_intrinsic(ir_call *);
void visit_membar_intrinsic(ir_call *);
st_src_reg result;
@@ -3296,6 +3297,40 @@ glsl_to_tgsi_visitor::visit_ssbo_intrinsic(ir_call *ir)
} while (inst && inst->buffer.file == PROGRAM_UNDEFINED && inst->op == op);
}
void
glsl_to_tgsi_visitor::visit_membar_intrinsic(ir_call *ir)
{
const char *callee = ir->callee->function_name();
if (!strcmp("__intrinsic_memory_barrier", callee))
emit_asm(ir, TGSI_OPCODE_MEMBAR, undef_dst,
st_src_reg_for_int(TGSI_MEMBAR_SHADER_BUFFER |
TGSI_MEMBAR_ATOMIC_BUFFER |
TGSI_MEMBAR_SHADER_IMAGE |
TGSI_MEMBAR_SHARED));
else if (!strcmp("__intrinsic_memory_barrier_atomic_counter", callee))
emit_asm(ir, TGSI_OPCODE_MEMBAR, undef_dst,
st_src_reg_for_int(TGSI_MEMBAR_ATOMIC_BUFFER));
else if (!strcmp("__intrinsic_memory_barrier_buffer", callee))
emit_asm(ir, TGSI_OPCODE_MEMBAR, undef_dst,
st_src_reg_for_int(TGSI_MEMBAR_SHADER_BUFFER));
else if (!strcmp("__intrinsic_memory_barrier_image", callee))
emit_asm(ir, TGSI_OPCODE_MEMBAR, undef_dst,
st_src_reg_for_int(TGSI_MEMBAR_SHADER_IMAGE));
else if (!strcmp("__intrinsic_memory_barrier_shared", callee))
emit_asm(ir, TGSI_OPCODE_MEMBAR, undef_dst,
st_src_reg_for_int(TGSI_MEMBAR_SHARED));
else if (!strcmp("__intrinsic_group_memory_barrier", callee))
emit_asm(ir, TGSI_OPCODE_MEMBAR, undef_dst,
st_src_reg_for_int(TGSI_MEMBAR_SHADER_BUFFER |
TGSI_MEMBAR_ATOMIC_BUFFER |
TGSI_MEMBAR_SHADER_IMAGE |
TGSI_MEMBAR_SHARED |
TGSI_MEMBAR_THREAD_GROUP));
else
assert(!"Unexpected memory barrier intrinsic");
}
void
glsl_to_tgsi_visitor::visit(ir_call *ir)
{
@@ -3327,6 +3362,16 @@ glsl_to_tgsi_visitor::visit(ir_call *ir)
return;
}
if (!strcmp("__intrinsic_memory_barrier", callee) ||
!strcmp("__intrinsic_memory_barrier_atomic_counter", callee) ||
!strcmp("__intrinsic_memory_barrier_buffer", callee) ||
!strcmp("__intrinsic_memory_barrier_image", callee) ||
!strcmp("__intrinsic_memory_barrier_shared", callee) ||
!strcmp("__intrinsic_group_memory_barrier", callee)) {
visit_membar_intrinsic(ir);
return;
}
entry = get_function_signature(sig);
/* Process in parameters. */
foreach_two_lists(formal_node, &sig->parameters,