From: "Juan A. Suarez Romero" <jasua...@igalia.com>
Even when the number of vertex attributes is under the limit, for
shaders that use a high number of them, we can quickly exhaust the
number of hardware registers.
In this case, just abort the linking.
---
src/mesa/drivers/dri/i965/brw_fs.cpp | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp
b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 4b8835d..387a266 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -1857,6 +1857,12 @@ fs_visitor::convert_attr_sources_to_hw_regs(fs_inst
*inst)
inst->src[i].nr +
inst->src[i].reg_offset;
+ if (grf >= 128) {
+ fail("Failure to register allocate. Reduce the number of "
+ "vertex input attributes to avoid this.");
+ return;
+ }
+
unsigned exec_size;
/* As explained at brw_reg_from_fs_reg, From the Haswell PRM:
*
--
2.5.0
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