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-rw-r--r--src/gallium/drivers/nv50/nv50_program.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c
index af5ca84c8e7..39597c54814 100644
--- a/src/gallium/drivers/nv50/nv50_program.c
+++ b/src/gallium/drivers/nv50/nv50_program.c
@@ -22,6 +22,9 @@
* - Maybe even relax restrictions a bit, can't do P_RESULT + P_IMMD,
* but can emit to P_TEMP first - then MOV later. NVIDIA does this
*
+ * In ops such as ADD it's possible to construct a bad opcode in the !is_long()
+ * case, if the emit_src() causes the inst to suddenly become long.
+ *
* 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..
*