[Mesa-dev] [PATCH 22/50] glsl: Add a lowering pass for 64-bit float sign()

[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 2d9728d..3a406ce 100644
--- a/src/compiler/glsl/ir_optimization.h
+++ b/src/compiler/glsl/ir_optimization.h
@@ -63,7 +63,7 @@
 #define ABS64                     (1U << 4)
 #define NEG64                     (1U << 5)
 
-#define LOWER_ALL_DOUBLE_OPS (ABS64 | NEG64)
+#define LOWER_ALL_DOUBLE_OPS (ABS64 | NEG64 | SIGN64)
 /**
  * \see class lower_packing_builtins_visitor
  */
diff --git a/src/compiler/glsl/lower_64bit.cpp b/src/compiler/glsl/lower_64bit.cpp
index bc9e477..88df912 100644
--- a/src/compiler/glsl/lower_64bit.cpp
+++ b/src/compiler/glsl/lower_64bit.cpp
@@ -435,6 +435,8 @@ lower_64bit_visitor::handle_rvalue(ir_rvalue **rvalue)
       if (lowering(SIGN64)) {
          if (ir->type->is_integer_64())
             *rvalue = handle_op(ir, "__builtin_sign64", generate_ir::sign64);
+	 else if (ir->type->base_type == GLSL_TYPE_DOUBLE)
+            *rvalue = handle_op(ir, "__builtin_fsign64", generate_ir::fsign64);
       }
       break;
 
-- 
2.9.5