Mesa (master): svga: abort shader translation upon indirect indexing of temporaries

[Brian Paul]

Module: Mesa
Branch: master
Commit: 57d9222ef29e080e944f28fdeeef9ed226461e08
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=57d9222ef29e080e944f28fdeeef9ed226461e08

Author: Charmaine Lee <charmainel at vmware.com>
Date:   Tue Aug  1 18:02:57 2017 -0700

svga: abort shader translation upon indirect indexing of temporaries

This patch aborts shader translation upon indirect indexing of temporary
register on non-vgpu10 device. This prevents non-supported feature
sending to the device.

Tested wth MTT-piglit, glretrace.

Reviewed-by: Brian Paul <brianp at vmware.com>

---

 src/gallium/drivers/svga/svga_tgsi.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/gallium/drivers/svga/svga_tgsi.c b/src/gallium/drivers/svga/svga_tgsi.c
index 7cbd516690..0b2d8af64d 100644
--- a/src/gallium/drivers/svga/svga_tgsi.c
+++ b/src/gallium/drivers/svga/svga_tgsi.c
@@ -209,6 +209,12 @@ svga_tgsi_vgpu9_translate(struct svga_context *svga,
       goto fail;
    }
 
+   if (emit.info.indirect_files & (1 << TGSI_FILE_TEMPORARY)) {
+      debug_printf(
+         "svga: indirect indexing of temporary registers is not supported.\n");
+      goto fail;
+   }
+
    emit.in_main_func = TRUE;
 
    if (!svga_shader_emit_header(&emit)) {