[Mesa-dev] [PATCH 09/17] glsl: Add support doubles in optimization passes (was: add double support)

[Topi Pohjolainen]

From: Dave Airlie <airlied at gmail.com>

Signed-off-by: Dave Airlie <airlied at redhat.com>
---
 src/glsl/opt_constant_propagation.cpp |  3 +++
 src/glsl/opt_minmax.cpp               | 13 +++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/src/glsl/opt_constant_propagation.cpp b/src/glsl/opt_constant_propagation.cpp
index c334e12..90cc0c8 100644
--- a/src/glsl/opt_constant_propagation.cpp
+++ b/src/glsl/opt_constant_propagation.cpp
@@ -194,6 +194,9 @@ ir_constant_propagation_visitor::handle_rvalue(ir_rvalue **rvalue)
       case GLSL_TYPE_FLOAT:
 	 data.f[i] = found->constant->value.f[rhs_channel];
 	 break;
+      case GLSL_TYPE_DOUBLE:
+	 data.d[i] = found->constant->value.d[rhs_channel];
+	 break;
       case GLSL_TYPE_INT:
 	 data.i[i] = found->constant->value.i[rhs_channel];
 	 break;
diff --git a/src/glsl/opt_minmax.cpp b/src/glsl/opt_minmax.cpp
index 32fb2d7..23d0b10 100644
--- a/src/glsl/opt_minmax.cpp
+++ b/src/glsl/opt_minmax.cpp
@@ -133,6 +133,14 @@ compare_components(ir_constant *a, ir_constant *b)
          else
             foundequal = true;
          break;
+      case GLSL_TYPE_DOUBLE:
+         if (a->value.d[c0] < b->value.d[c1])
+            foundless = true;
+         else if (a->value.d[c0] > b->value.d[c1])
+            foundgreater = true;
+         else
+            foundequal = true;
+         break;
       default:
          unreachable("not reached");
       }
@@ -178,6 +186,11 @@ combine_constant(bool ismin, ir_constant *a, ir_constant *b)
              (!ismin && b->value.f[i] > c->value.f[i]))
             c->value.f[i] = b->value.f[i];
          break;
+      case GLSL_TYPE_DOUBLE:
+         if ((ismin && b->value.d[i] < c->value.d[i]) ||
+             (!ismin && b->value.d[i] > c->value.d[i]))
+            c->value.d[i] = b->value.d[i];
+         break;
       default:
          assert(!"not reached");
       }
-- 
1.9.3