amd64, arm, sparc: Replace the dependency edge of the IncSP after the Call by...

amd64, arm, sparc: Replace the dependency edge of the IncSP after the Call by a stack output of the call.

This removes the only uses of dependency edges.

ir/be/amd64/amd64_spec.pl

@@ -474,7 +474,7 @@ call => {
 	state     => "exc_pinned",
 	in_reqs   => "...",
 	out_reqs  => "...",
-	outs      => [ "M", "flags", "first_result" ],
+	outs      => [ "M", "stack", "flags", "first_result" ],
 	attr_type => "amd64_addr_attr_t",
 	attr      => "amd64_op_mode_t op_mode, amd64_addr_t addr",
 	fixed     => "amd64_insn_mode_t insn_mode = INSN_MODE_64;\n",

ir/be/amd64/amd64_transform.c

@@ -1865,6 +1865,7 @@ static ir_node *gen_Call(ir_node *node)
 
 	/* create output register reqs */
 	arch_set_irn_register_req_out(call, pn_amd64_call_M, arch_no_register_req);
+	arch_copy_irn_out_info(call, pn_amd64_call_stack, incsp);
 
 	arch_register_class_t const *const flags = &amd64_reg_classes[CLASS_amd64_flags];
 	arch_set_irn_register_req_out(call, pn_amd64_call_flags, flags->class_req);
@@ -1892,11 +1893,11 @@ static ir_node *gen_Call(ir_node *node)
 	set_irn_pinned(call, get_irn_pinned(node));
 
 	/* IncSP to destroy the call stackframe */
-	incsp = amd64_new_IncSP(new_block, incsp, -cconv->param_stack_size, 0);
+	ir_node *const call_stack = new_r_Proj(call, mode_gp, pn_amd64_call_stack);
+	incsp = amd64_new_IncSP(new_block, call_stack, -cconv->param_stack_size, 0);
 	/* if we are the last IncSP producer in a block then we have to keep
 	 * the stack value.
 	 * Note: This here keeps all producers which is more than necessary */
-	add_irn_dep(incsp, call);
 	keep_alive(incsp);
 
 	pmap_insert(node_to_stack, node, incsp);

ir/be/arm/arm_spec.pl

@@ -445,7 +445,7 @@ Bl => {
 	irn_flags => [ "modify_flags" ],
 	in_reqs   => "...",
 	out_reqs  => "...",
-	outs      => [ "M", "first_result" ],
+	outs      => [ "M", "stack", "first_result" ],
 	attr_type => "arm_Address_attr_t",
 	attr      => "ir_entity *entity, int offset",
 	emit      => 'bl %I',

ir/be/arm/arm_transform.c

@@ -2025,6 +2025,8 @@ static ir_node *gen_Call(ir_node *node)
 
 	/* create output register reqs */
 	arch_set_irn_register_req_out(res, pn_arm_Bl_M, arch_no_register_req);
+	arch_copy_irn_out_info(res, pn_arm_Bl_stack, incsp);
+
 	for (size_t o = 0; o < n_caller_saves; ++o) {
 		const arch_register_t *reg = caller_saves[o];
 		arch_set_irn_register_req_out(res, pn_arm_Bl_first_result + o, reg->single_req);
@@ -2034,11 +2036,11 @@ static ir_node *gen_Call(ir_node *node)
 	set_irn_pinned(res, get_irn_pinned(node));
 
 	/* IncSP to destroy the call stackframe */
-	incsp = be_new_IncSP(sp_reg, new_block, incsp, -cconv->param_stack_size, 0);
+	ir_node *const call_stack = new_r_Proj(res, arm_mode_gp, pn_arm_Bl_stack);
+	incsp = be_new_IncSP(sp_reg, new_block, call_stack, -cconv->param_stack_size, 0);
 	/* if we are the last IncSP producer in a block then we have to keep
 	 * the stack value.
 	 * Note: This here keeps all producers which is more than necessary */
-	add_irn_dep(incsp, res);
 	keep_alive(incsp);
 
 	pmap_insert(node_to_stack, node, incsp);

ir/be/sparc/sparc_spec.pl

@@ -556,7 +556,7 @@ Call => {
 	state     => "exc_pinned",
 	in_reqs   => "...",
 	out_reqs  => "...",
-	outs      => [ "M", "first_result" ],
+	outs      => [ "M", "stack", "first_result" ],
 	attr_type => "sparc_call_attr_t",
 	constructors => {
 		imm => {

ir/be/sparc/sparc_transform.c

@@ -2137,6 +2137,8 @@ static ir_node *gen_Call(ir_node *node)
 
 	/* create output register reqs */
 	arch_set_irn_register_req_out(res, pn_sparc_Call_M, arch_no_register_req);
+	arch_copy_irn_out_info(res, pn_sparc_Call_stack, incsp);
+
 	/* add register requirements for the result regs */
 	for (size_t r = 0; r < n_ress; ++r) {
 		const reg_or_stackslot_t  *result_info = &cconv->results[r];
@@ -2163,11 +2165,11 @@ static ir_node *gen_Call(ir_node *node)
 	set_irn_pinned(res, get_irn_pinned(node));
 
 	/* IncSP to destroy the call stackframe */
-	incsp = be_new_IncSP(sp_reg, new_block, incsp, -cconv->param_stack_size, 0);
+	ir_node *const call_stack = new_r_Proj(res, mode_gp, pn_sparc_Call_stack);
+	incsp = be_new_IncSP(sp_reg, new_block, call_stack, -cconv->param_stack_size, 0);
 	/* if we are the last IncSP producer in a block then we have to keep
 	 * the stack value.
 	 * Note: This here keeps all producers which is more than necessary */
-	add_irn_dep(incsp, res);
 	keep_alive(incsp);
 
 	pmap_insert(node_to_stack, node, incsp);