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-rw-r--r--src/mesa/drivers/dri/i965/brw_vec4.cpp11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp b/src/mesa/drivers/dri/i965/brw_vec4.cpp
index b0527c7b31e..0afff6f72c5 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp
@@ -1197,6 +1197,11 @@ vec4_visitor::lower_attributes_to_hw_regs(const int *attribute_map)
if (inst->dst.file == ATTR) {
int grf = attribute_map[inst->dst.reg + inst->dst.reg_offset];
+ /* All attributes used in the shader need to have been assigned a
+ * hardware register by the caller
+ */
+ assert(grf != 0);
+
struct brw_reg reg = brw_vec8_grf(grf, 0);
reg.type = inst->dst.type;
reg.dw1.bits.writemask = inst->dst.writemask;
@@ -1211,6 +1216,11 @@ vec4_visitor::lower_attributes_to_hw_regs(const int *attribute_map)
int grf = attribute_map[inst->src[i].reg + inst->src[i].reg_offset];
+ /* All attributes used in the shader need to have been assigned a
+ * hardware register by the caller
+ */
+ assert(grf != 0);
+
struct brw_reg reg = brw_vec8_grf(grf, 0);
reg.dw1.bits.swizzle = inst->src[i].swizzle;
reg.type = inst->src[i].type;
@@ -1230,6 +1240,7 @@ vec4_vs_visitor::setup_attributes(int payload_reg)
{
int nr_attributes;
int attribute_map[VERT_ATTRIB_MAX + 1];
+ memset(attribute_map, 0, sizeof(attribute_map));
nr_attributes = 0;
for (int i = 0; i < VERT_ATTRIB_MAX; i++) {