[Mesa-dev] [PATCH 30/47] glsl: Add a lowering pass for 64-bit float i2d()
Elie Tournier
tournier.elie at gmail.com
Wed Aug 23 11:08:00 UTC 2017
Signed-off-by: Elie Tournier <elie.tournier at collabora.com>
---
src/compiler/glsl/ir_optimization.h | 1 +
src/compiler/glsl/lower_64bit.cpp | 7 +++++++
src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 3 ++-
3 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/src/compiler/glsl/ir_optimization.h b/src/compiler/glsl/ir_optimization.h
index 157c7e1a6f..c59d7f6ee2 100644
--- a/src/compiler/glsl/ir_optimization.h
+++ b/src/compiler/glsl/ir_optimization.h
@@ -71,6 +71,7 @@
#define D2U (1U << 10)
#define U2D (1U << 11)
#define D2I (1U << 12)
+#define I2D (1U << 13)
/**
* \see class lower_packing_builtins_visitor
diff --git a/src/compiler/glsl/lower_64bit.cpp b/src/compiler/glsl/lower_64bit.cpp
index 41255094ec..570f997779 100644
--- a/src/compiler/glsl/lower_64bit.cpp
+++ b/src/compiler/glsl/lower_64bit.cpp
@@ -450,6 +450,13 @@ lower_64bit_visitor::handle_rvalue(ir_rvalue **rvalue)
}
break;
+ case ir_unop_i2d:
+ if (lowering(I2D)) {
+ if (ir->type->base_type == GLSL_TYPE_DOUBLE)
+ *rvalue = handle_op(ir, "__builtin_int_to_fp64", generate_ir::int_to_fp64, true);
+ }
+ break;
+
case ir_unop_neg:
if (lowering(NEG64)) {
if (ir->type->base_type == GLSL_TYPE_DOUBLE)
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 821461e439..1be223a3cb 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -7068,7 +7068,8 @@ st_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
MUL64 |
D2U |
U2D |
- D2I;
+ D2I |
+ I2D;
lower_64bit_double_instructions(ir, lower_inst);
}
--
2.14.1
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