[Mesa-dev] [PATCH 24/50] glsl: Add a lowering pass for 64-bit float less()
Dave Airlie
airlied at gmail.com
Tue Mar 13 04:24:49 UTC 2018
From: Elie Tournier <tournier.elie at gmail.com>
Signed-off-by: Elie Tournier <elie.tournier at collabora.com>
---
src/compiler/glsl/ir_optimization.h | 4 +++-
src/compiler/glsl/lower_64bit.cpp | 7 +++++++
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/src/compiler/glsl/ir_optimization.h b/src/compiler/glsl/ir_optimization.h
index 17db074..b5f8c45 100644
--- a/src/compiler/glsl/ir_optimization.h
+++ b/src/compiler/glsl/ir_optimization.h
@@ -63,8 +63,10 @@
#define ABS64 (1U << 4)
#define NEG64 (1U << 5)
#define EQ64 (1U << 6)
+#define LT64 (1U << 7)
+
+#define LOWER_ALL_DOUBLE_OPS (ABS64 | NEG64 | SIGN64 | EQ64 | LT64)
-#define LOWER_ALL_DOUBLE_OPS (ABS64 | NEG64 | SIGN64 | EQ64)
/**
* \see class lower_packing_builtins_visitor
*/
diff --git a/src/compiler/glsl/lower_64bit.cpp b/src/compiler/glsl/lower_64bit.cpp
index d5e0f32..24cc3cd 100644
--- a/src/compiler/glsl/lower_64bit.cpp
+++ b/src/compiler/glsl/lower_64bit.cpp
@@ -457,6 +457,13 @@ lower_64bit_visitor::handle_rvalue(ir_rvalue **rvalue)
}
break;
+ case ir_binop_less:
+ if (lowering(LT64)) {
+ if (ir->operands[0]->type->base_type == GLSL_TYPE_DOUBLE)
+ *rvalue = handle_op(ir, "__builtin_flt64", generate_ir::flt64);
+ }
+ break;
+
case ir_binop_mod:
if (lowering(MOD64)) {
if (ir->type->base_type == GLSL_TYPE_UINT64) {
--
2.9.5
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