[Mesa-dev] [PATCH] i965: Fix src0 vs src1 typo

[Matt Turner]

A typo caused us to copy src0's reg file to src1 rather than reading
src1's as intended. This caused us to fail to compact instructions like

   mov(8)   g4<1>D    0D              { align1 1Q };

because src1 was set to immediate rather than architecture file. Fixing
this reenables compaction (after the precompact() pass changes the data
types):

   mov(8)   g4<1>UD   0x00000000UD    { align1 1Q compacted };

Fixes: 1cb0a7941b27 ("i965: Switch to using the logical register types")
---
 src/intel/compiler/brw_eu_compact.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/intel/compiler/brw_eu_compact.c b/src/intel/compiler/brw_eu_compact.c
index 7674aa8b85..7b32270957 100644
--- a/src/intel/compiler/brw_eu_compact.c
+++ b/src/intel/compiler/brw_eu_compact.c
@@ -998,7 +998,7 @@ precompact(const struct gen_device_info *devinfo, brw_inst inst)
          (brw_inst_src0_type(devinfo, &inst) == BRW_REGISTER_TYPE_DF ||
           brw_inst_src0_type(devinfo, &inst) == BRW_REGISTER_TYPE_UQ ||
           brw_inst_src0_type(devinfo, &inst) == BRW_REGISTER_TYPE_Q))) {
-      enum brw_reg_file file = brw_inst_src0_reg_file(devinfo, &inst);
+      enum brw_reg_file file = brw_inst_src1_reg_file(devinfo, &inst);
       brw_inst_set_src1_file_type(devinfo, &inst, file, BRW_REGISTER_TYPE_UD);
    }
 
-- 
2.13.6