[Mesa-dev] [PATCH 5/9] glsl/lower_64bit: add ability to handle 32-bit sources.

[Dave Airlie]

From: Dave Airlie <airlied at redhat.com>

If this function saw a 32-bit source it would just return the
IR without doing any conversion, this adds the ability to denote
where 32-bit sources are expected and will be used in subsequent
patches to add 32->64 conversions.

Signed-off-by: Dave Airlie <airlied at redhat.com>
---
 src/compiler/glsl/lower_64bit.cpp | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/compiler/glsl/lower_64bit.cpp b/src/compiler/glsl/lower_64bit.cpp
index 020ec2e9c3..b72b5cf799 100644
--- a/src/compiler/glsl/lower_64bit.cpp
+++ b/src/compiler/glsl/lower_64bit.cpp
@@ -122,7 +122,7 @@ private:
    ir_factory added_functions;
 
    ir_rvalue *handle_op(ir_expression *ir, const char *function_name,
-                        function_generator generator);
+                        function_generator generator, bool conv_from_32bit = false);
 };
 
 } /* anonymous namespace */
@@ -347,12 +347,15 @@ lower_64bit::lower_op_to_function_call(ir_instruction *base_ir,
 ir_rvalue *
 lower_64bit_visitor::handle_op(ir_expression *ir,
                                const char *function_name,
-                               function_generator generator)
+                               function_generator generator,
+                               bool conv_from_32bit)
 {
-   for (unsigned i = 0; i < ir->num_operands; i++)
-      if (!ir->operands[i]->type->is_integer_64())
-         return ir;
-
+   if (conv_from_32bit == false) {
+      for (unsigned i = 0; i < ir->num_operands; i++)
+         if (!ir->operands[i]->type->is_integer_64() &&
+             !ir->operands[i]->type->is_double())
+            return ir;
+   }
    /* Get a handle to the correct ir_function_signature for the core
     * operation.
     */
-- 
2.14.3