ssa_assign() creates an SSA variable and assignment at the same
time. With this, simple sequences of SSA statements can be easily
created.
---
src/glsl/ir_builder.cpp | 14 ++++++++++++++
src/glsl/ir_builder.h | 1 +
2 files changed, 15 insertions(+)
diff --git a/src/glsl/ir_builder.cpp b/src/glsl/ir_builder.cpp
index 2229cd2..03cb38f 100644
--- a/src/glsl/ir_builder.cpp
+++ b/src/glsl/ir_builder.cpp
@@ -76,6 +76,20 @@ assign(deref lhs, operand rhs, operand condition)
return assign(lhs, rhs, condition, (1 << lhs.val->type->vector_elements) -
1);
}
+ir_assignment *
+ssa_assign(const char *name, operand rhs)
+{
+ void *mem_ctx = ralloc_parent(rhs.val);
+
+ ir_variable *var = new(mem_ctx) ir_variable(rhs.val->type, name,
+ ir_var_temporary_ssa);
+
+ ir_assignment *ret = assign(var, rhs);
+ var->ssa_assignment = ret;
+ return ret;
+}
+
+
ir_return *
ret(operand retval)
{
diff --git a/src/glsl/ir_builder.h b/src/glsl/ir_builder.h
index ae10995..415112b 100644
--- a/src/glsl/ir_builder.h
+++ b/src/glsl/ir_builder.h
@@ -124,6 +124,7 @@ ir_assignment *assign(deref lhs, operand rhs);
ir_assignment *assign(deref lhs, operand rhs, int writemask);
ir_assignment *assign(deref lhs, operand rhs, operand condition);
ir_assignment *assign(deref lhs, operand rhs, operand condition, int
writemask);
+ir_assignment *ssa_assign(const char *name, operand rhs);
ir_return *ret(operand retval);
--
1.8.3.1
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/mesa-dev
