r600g/sb: Move memsets of member structs to within constructor bodies.

Silences "Uninitialized pointer field" defects reported by Coverity.

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Vadim Girlin <vadimgirlin@gmail.com>

src/gallium/drivers/r600/sb/sb_ir.h

@@ -963,7 +963,7 @@ public:
 class cf_node : public container_node {
 protected:
 	cf_node() : container_node(NT_OP, NST_CF_INST), jump_target(),
-		jump_after_target() {};
+		jump_after_target() { memset(&bc, 0, sizeof(bc_cf)); };
 public:
 	bc_cf bc;
 
@@ -982,7 +982,7 @@ public:
 
 class alu_node : public node {
 protected:
-	alu_node() : node(NT_OP, NST_ALU_INST) {};
+	alu_node() : node(NT_OP, NST_ALU_INST) { memset(&bc, 0, sizeof(bc_alu)); };
 public:
 	bc_alu bc;
 
@@ -1028,7 +1028,7 @@ public:
 
 class fetch_node : public node {
 protected:
-	fetch_node() : node(NT_OP, NST_FETCH_INST) {};
+	fetch_node() : node(NT_OP, NST_FETCH_INST) { memset(&bc, 0, sizeof(bc_fetch)); };
 public:
 	bc_fetch bc;
 

src/gallium/drivers/r600/sb/sb_shader.cpp

@@ -260,7 +260,6 @@ node* shader::create_node(node_type nt, node_subtype nst, node_flags flags) {
 
 alu_node* shader::create_alu() {
 	alu_node* n = new (pool.allocate(sizeof(alu_node))) alu_node();
-	memset(&n->bc, 0, sizeof(bc_alu));
 	all_nodes.push_back(n);
 	return n;
 }
@@ -281,7 +280,6 @@ alu_packed_node* shader::create_alu_packed() {
 
 cf_node* shader::create_cf() {
 	cf_node* n = new (pool.allocate(sizeof(cf_node))) cf_node();
-	memset(&n->bc, 0, sizeof(bc_cf));
 	n->bc.barrier = 1;
 	all_nodes.push_back(n);
 	return n;
@@ -289,7 +287,6 @@ cf_node* shader::create_cf() {
 
 fetch_node* shader::create_fetch() {
 	fetch_node* n = new (pool.allocate(sizeof(fetch_node))) fetch_node();
-	memset(&n->bc, 0, sizeof(bc_fetch));
 	all_nodes.push_back(n);
 	return n;
 }