When a texture (or an image) instruction uses a bindless sampler
(respectively a bindless image), make sure the DCE pass won't
remove code when the resource is a temporary variable.
Signed-off-by: Samuel Pitoiset <samuel.pitoi...@gmail.com>
---
src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index f30544eb4c..ee1afdcd08 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -5247,6 +5247,21 @@ glsl_to_tgsi_visitor::eliminate_dead_code(void)
}
}
}
+
+ if (inst->resource.file == PROGRAM_TEMPORARY) {
+ int src_chans;
+
+ src_chans = 1 << GET_SWZ(inst->resource.swizzle, 0);
+ src_chans |= 1 << GET_SWZ(inst->resource.swizzle, 1);
+ src_chans |= 1 << GET_SWZ(inst->resource.swizzle, 2);
+ src_chans |= 1 << GET_SWZ(inst->resource.swizzle, 3);
+
+ for (int c = 0; c < 4; c++) {
+ if (src_chans & (1 << c))
+ writes[4 * inst->resource.index + c] = NULL;
+ }
+ }
+
break;
}
--
2.13.0
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