Mesa (master): glsl: use the linear allocator in opt_copy_propagation_elements

[Marek Olšák]

Module: Mesa
Branch: master
Commit: b6f50e4640c5e4ab27d50422269b54eb6efa955a
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=b6f50e4640c5e4ab27d50422269b54eb6efa955a

Author: Marek Olšák <marek.olsak at amd.com>
Date:   Fri Oct  7 20:57:04 2016 +0200

glsl: use the linear allocator in opt_copy_propagation_elements

Tested-by: Edmondo Tommasina <edmondo.tommasina at gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle at amd.com>

---

 src/compiler/glsl/opt_copy_propagation_elements.cpp | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/src/compiler/glsl/opt_copy_propagation_elements.cpp b/src/compiler/glsl/opt_copy_propagation_elements.cpp
index be89116..9f79fa9 100644
--- a/src/compiler/glsl/opt_copy_propagation_elements.cpp
+++ b/src/compiler/glsl/opt_copy_propagation_elements.cpp
@@ -70,6 +70,9 @@ public:
 class acp_entry : public exec_node
 {
 public:
+   /* override operator new from exec_node */
+   DECLARE_LINEAR_ZALLOC_CXX_OPERATORS(acp_entry)
+
    acp_entry(ir_variable *lhs, ir_variable *rhs, int write_mask, int swizzle[4])
       : rhs_node(this)
    {
@@ -90,6 +93,9 @@ public:
 class kill_entry : public exec_node
 {
 public:
+   /* override operator new from exec_node */
+   DECLARE_LINEAR_ZALLOC_CXX_OPERATORS(kill_entry)
+
    kill_entry(ir_variable *var, int write_mask)
    {
       this->var = var;
@@ -107,6 +113,7 @@ public:
       this->progress = false;
       this->killed_all = false;
       this->mem_ctx = ralloc_context(NULL);
+      this->lin_ctx = linear_alloc_parent(this->mem_ctx, 0);
       this->shader_mem_ctx = NULL;
       this->kills = new(mem_ctx) exec_list;
 
@@ -174,6 +181,7 @@ public:
 
    /* Context for our local data structures. */
    void *mem_ctx;
+   void *lin_ctx;
    /* Context for allocating new shader nodes. */
    void *shader_mem_ctx;
 };
@@ -223,9 +231,9 @@ ir_copy_propagation_elements_visitor::visit_leave(ir_assignment *ir)
       kill_entry *k;
 
       if (lhs)
-	 k = new(this->kills) kill_entry(var, ir->write_mask);
+	 k = new(this->lin_ctx) kill_entry(var, ir->write_mask);
       else
-	 k = new(this->kills) kill_entry(var, ~0);
+	 k = new(this->lin_ctx) kill_entry(var, ~0);
 
       kill(k);
    }
@@ -524,7 +532,6 @@ ir_copy_propagation_elements_visitor::kill(kill_entry *k)
    if (k->next)
       k->remove();
 
-   ralloc_steal(this->kills, k);
    this->kills->push_tail(k);
 }
 
@@ -588,7 +595,7 @@ ir_copy_propagation_elements_visitor::add_copy(ir_assignment *ir)
    if (lhs->var->data.precise != rhs->var->data.precise)
       return;
 
-   entry = new(this->mem_ctx) acp_entry(lhs->var, rhs->var, write_mask,
+   entry = new(this->lin_ctx) acp_entry(lhs->var, rhs->var, write_mask,
 					swizzle);
 
    /* lhs hash, hash of lhs -> acp_entry lists */