Add two overloaded variants of
ir_if *if_tree()
The new functions allow one to chain together if-trees within a single C++
expression that resembles a real if-statement.
Signed-off-by: Chad Versace <chad.vers...@linux.intel.com>
---
src/glsl/ir_builder.cpp | 29 +++++++++++++++++++++++++++++
src/glsl/ir_builder.h | 6 ++++++
2 files changed, 35 insertions(+)
diff --git a/src/glsl/ir_builder.cpp b/src/glsl/ir_builder.cpp
index b7a116e..8fb30a0 100644
--- a/src/glsl/ir_builder.cpp
+++ b/src/glsl/ir_builder.cpp
@@ -333,4 +333,33 @@ u2f(operand a)
return expr(ir_unop_u2f, a);
}
+ir_if*
+if_tree(operand condition,
+ ir_instruction *then_branch)
+{
+ assert(then_branch != NULL);
+
+ void *mem_ctx = ralloc_parent(condition.val);
+
+ ir_if *result = new(mem_ctx) ir_if(condition.val);
+ result->then_instructions.push_tail(then_branch);
+ return result;
+}
+
+ir_if*
+if_tree(operand condition,
+ ir_instruction *then_branch,
+ ir_instruction *else_branch)
+{
+ assert(then_branch != NULL);
+ assert(else_branch != NULL);
+
+ void *mem_ctx = ralloc_parent(condition.val);
+
+ ir_if *result = new(mem_ctx) ir_if(condition.val);
+ result->then_instructions.push_tail(then_branch);
+ result->else_instructions.push_tail(else_branch);
+ return result;
+}
+
} /* namespace ir_builder */
diff --git a/src/glsl/ir_builder.h b/src/glsl/ir_builder.h
index 82e3762..690ac74 100644
--- a/src/glsl/ir_builder.h
+++ b/src/glsl/ir_builder.h
@@ -174,4 +174,10 @@ ir_swizzle *swizzle_xy(operand a);
ir_swizzle *swizzle_xyz(operand a);
ir_swizzle *swizzle_xyzw(operand a);
+ir_if *if_tree(operand condition,
+ ir_instruction *then_branch);
+ir_if *if_tree(operand condition,
+ ir_instruction *then_branch,
+ ir_instruction *else_branch);
+
} /* namespace ir_builder */
--
1.8.1.1
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