nv50: note a critical bug

diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c
index 7206e5d..b151b54 100644 (file)
--- a/src/gallium/drivers/nv50/nv50_program.c
+++ b/src/gallium/drivers/nv50/nv50_program.c
@@ -26,6 +26,9 @@
  *
  * Verify half-insns work where expected - and force disable them where they
  * don't work - MUL has it forcibly disabled atm as it fixes POW..
+ *
+ * FUCK! watch dst==src vectors, can overwrite components that are needed.
+ *     ie. SUB R0, R0.yzxw, R0
  */
 struct nv50_reg {
        enum {