diff options
| author | Ian Romanick <[email protected]> | 2011-07-20 18:02:17 -0700 |
|---|---|---|
| committer | Ian Romanick <[email protected]> | 2011-07-23 01:24:18 -0700 |
| commit | fbeb68e880318808f90c779cd3f8b8c4160eecf8 (patch) | |
| tree | 13527d3c4d85aeb1f8e77ccb3f47e6d0fe095225 /src/mesa/program | |
| parent | f7cd9a858c043e609fcdbf9ac9dfc1ef7ad002bf (diff) | |
prog_optimize: Set unused regs to PROGRAM_UNDEFINED after CMP->MOV conversion
Leaving the unused registers with other values caused assertion
failures and other problems in places that blindly iterate over all
sources.
brw_vs_emit.c:1381: get_src_reg: Assertion `c->regs[file][index].nr !=
0' failed.
Fixes i965 piglit:
vs-uniform-array-mat[234]-col-row-rd
vs-uniform-array-mat[234]-index-col-row-rd
vs-uniform-array-mat[234]-index-row-rd
vs-uniform-mat[234]-col-row-rd
Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
Diffstat (limited to 'src/mesa/program')
| -rw-r--r-- | src/mesa/program/prog_optimize.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/mesa/program/prog_optimize.c b/src/mesa/program/prog_optimize.c index 8a40fa69eca..f4a7a638d5f 100644 --- a/src/mesa/program/prog_optimize.c +++ b/src/mesa/program/prog_optimize.c @@ -1319,6 +1319,15 @@ _mesa_simplify_cmp(struct gl_program * program) inst->Opcode = OPCODE_MOV; inst->SrcReg[0] = inst->SrcReg[1]; + + /* Unused operands are expected to have the file set to + * PROGRAM_UNDEFINED. This is how _mesa_init_instructions initializes + * all of the sources. + */ + inst->SrcReg[1].File = PROGRAM_UNDEFINED; + inst->SrcReg[1].Swizzle = SWIZZLE_NOOP; + inst->SrcReg[2].File = PROGRAM_UNDEFINED; + inst->SrcReg[2].Swizzle = SWIZZLE_NOOP; } } if (dbg) { |