From: Ian Romanick <ian.d.roman...@intel.com>
The only values allowed are 0 and 1, and the value is checked before
assigning.
With the previous changes, reduces the peak ir_variable memory usage in
a trimmed apitrace of dota2 by 204KiB on 64-bit.
Before: IR MEM: variable usage / name / total: 6374280 1439077 7813357
After: IR MEM: variable usage / name / total: 6164976 1439077 7604053
Reduces the peak ir_variable memory usage in a trimmed apitrace of dota2
by 102KiB on 32-bit.
Before: IR MEM: variable usage / name / total: 4850844 915817 5766661
After: IR MEM: variable usage / name / total: 4746192 915817 5662009
Signed-off-by: Ian Romanick <ian.d.roman...@intel.com>
---
src/glsl/ir.h | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/src/glsl/ir.h b/src/glsl/ir.h
index 93d5aef..3767f2a 100644
--- a/src/glsl/ir.h
+++ b/src/glsl/ir.h
@@ -651,6 +651,15 @@ public:
unsigned from_named_ifc_block_array:1;
/**
+ * Output index for dual source blending.
+ *
+ * \note
+ * The GLSL spec only allows the values 0 or 1 for the index in \b dual
+ * source blending.
+ */
+ unsigned index:1;
+
+ /**
* \brief Layout qualifier for gl_FragDepth.
*
* This is not equal to \c ir_depth_layout_none if and only if this
@@ -679,11 +688,6 @@ public:
int location;
/**
- * output index for dual source blending.
- */
- int index;
-
- /**
* Initial binding point for a sampler, atomic, or UBO.
*
* For array types, this represents the binding point for the first
element.
--
1.8.1.4
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