diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_vec4.cpp')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vec4.cpp | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp b/src/mesa/drivers/dri/i965/brw_vec4.cpp index 6e52d79e053..c6510453479 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4.cpp +++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp @@ -941,10 +941,18 @@ vec4_visitor::opt_set_dependency_control() } bool -vec4_instruction::can_reswizzle(int dst_writemask, +vec4_instruction::can_reswizzle(const struct brw_device_info *devinfo, + int dst_writemask, int swizzle, int swizzle_mask) { + /* Gen6 MATH instructions can not execute in align16 mode, so swizzles + * or writemasking are not allowed. + */ + if (devinfo->gen == 6 && is_math() && + (swizzle != BRW_SWIZZLE_XYZW || dst_writemask != WRITEMASK_XYZW)) + return false; + /* If this instruction sets anything not referenced by swizzle, then we'd * totally break it when we reswizzle. */ @@ -1099,7 +1107,7 @@ vec4_visitor::opt_register_coalesce() break; /* If we can't handle the swizzle, bail. */ - if (!scan_inst->can_reswizzle(inst->dst.writemask, + if (!scan_inst->can_reswizzle(devinfo, inst->dst.writemask, inst->src[0].swizzle, chans_needed)) { break; |