[Mesa-dev] [PATCH 26/50] glsl: Add a lowering pass for 64-bit float mul()

[Dave Airlie]

From: Elie Tournier <tournier.elie at gmail.com>

Signed-off-by: Elie Tournier <elie.tournier at collabora.com>
---
 src/compiler/glsl/ir_optimization.h | 2 +-
 src/compiler/glsl/lower_64bit.cpp   | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/compiler/glsl/ir_optimization.h b/src/compiler/glsl/ir_optimization.h
index 691803e..6506e28 100644
--- a/src/compiler/glsl/ir_optimization.h
+++ b/src/compiler/glsl/ir_optimization.h
@@ -67,7 +67,7 @@
 #define ADD64                     (1U << 8)
 
 #define LOWER_ALL_DOUBLE_OPS (ABS64 | NEG64 | SIGN64 | EQ64 | LT64 | \
-                              ADD64)
+                              ADD64 | MUL64)
 
 /**
  * \see class lower_packing_builtins_visitor
diff --git a/src/compiler/glsl/lower_64bit.cpp b/src/compiler/glsl/lower_64bit.cpp
index eed1dba..f3a2633 100644
--- a/src/compiler/glsl/lower_64bit.cpp
+++ b/src/compiler/glsl/lower_64bit.cpp
@@ -485,6 +485,8 @@ lower_64bit_visitor::handle_rvalue(ir_rvalue **rvalue)
       if (lowering(MUL64)) {
          if (ir->type->is_integer_64())
             *rvalue = handle_op(ir, "__builtin_umul64", generate_ir::umul64);
+	 else if (ir->type->base_type == GLSL_TYPE_DOUBLE)
+            *rvalue = handle_op(ir, "__builtin_fmul64", generate_ir::fmul64);
       }
       break;
 
-- 
2.9.5