i965/disasm: Wrap opcode_desc look-up in a function.

The function takes a device info struct as argument in addition to the
opcode number in order to disambiguate between multiple opcode_desc
entries for different instructions with the same opcode number.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com> [v1]

[v2] mattst88: Put brw_opcode_desc() in brw_eu.c instead of moving it
               there in a later patch.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> [v2]
[v3] mattst88: Return NULL if opcode >= ARRAY_SIZE(opcode_descs)
Reviewed-by: Matt Turner <mattst88@gmail.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_eu.h b/src/mesa/drivers/dri/i965/brw_eu.h
index 89b4e7f..563a105 100644
--- a/src/mesa/drivers/dri/i965/brw_eu.h
+++ b/src/mesa/drivers/dri/i965/brw_eu.h
@@ -545,10 +545,14 @@ next_offset(const struct brw_device_info *devinfo, void *store, int offset)
       return offset + 16;
 }
 
+const struct opcode_desc *
+brw_opcode_desc(const struct brw_device_info *devinfo, enum opcode opcode);
+
 static inline bool
 is_3src(const struct brw_device_info *devinfo, enum opcode opcode)
 {
-   return opcode_descs[opcode].nsrc == 3;
+   const struct opcode_desc *desc = brw_opcode_desc(devinfo, opcode);
+   return desc && desc->nsrc == 3;
 }
 
 /** Maximum SEND message length */