radeonsi: increase array size for shader inputs and outputs

and add assertions to prevent buffer overflow. This fixes corruption
of the si_shader struct.

NOTE: This is a candidate for the 9.1 branch.

[ Cherry-pick of r600g commit da33f9b919039442e9ab51f9b1d1c83a73607133 ]

Reviewed-by: Marek Olšák <maraeo@gmail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/gallium/drivers/radeonsi/radeonsi_shader.c b/src/gallium/drivers/radeonsi/radeonsi_shader.c
index f9424360ba5..bea2895bf0c 100644
--- a/src/gallium/drivers/radeonsi/radeonsi_shader.c
+++ b/src/gallium/drivers/radeonsi/radeonsi_shader.c
@@ -589,6 +589,7 @@ static void si_llvm_emit_epilogue(struct lp_build_tgsi_context * bld_base)
 		switch (d->Declaration.File) {
 		case TGSI_FILE_INPUT:
 			i = shader->ninput++;
+			assert(i < Elements(shader->input));
 			shader->input[i].name = d->Semantic.Name;
 			shader->input[i].sid = d->Semantic.Index;
 			shader->input[i].interpolate = d->Interp.Interpolate;
@@ -597,6 +598,7 @@ static void si_llvm_emit_epilogue(struct lp_build_tgsi_context * bld_base)
 
 		case TGSI_FILE_OUTPUT:
 			i = shader->noutput++;
+			assert(i < Elements(shader->output));
 			shader->output[i].name = d->Semantic.Name;
 			shader->output[i].sid = d->Semantic.Index;
 			shader->output[i].interpolate = d->Interp.Interpolate;