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i965/vec4: Use can_do_writemask in can_reswizzle

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Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Jason Ekstrand 2016-04-05 14:10:04 -07:00
parent 75b68f9114
commit 61ee5e62a2
1 changed files with 5 additions and 3 deletions
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8
src/mesa/drivers/dri/i965/brw_vec4.cpp
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@ -965,10 +965,12 @@ vec4_instruction::can_reswizzle(const struct brw_device_info *devinfo,
int swizzle_mask)
{
/* Gen6 MATH instructions can not execute in align16 mode, so swizzles
* or writemasking are not allowed.
* are not allowed.
*/
if (devinfo->gen == 6 && is_math() &&
(swizzle != BRW_SWIZZLE_XYZW || dst_writemask != WRITEMASK_XYZW))
if (devinfo->gen == 6 && is_math() && swizzle != BRW_SWIZZLE_XYZW)
return false;
if (!can_do_writemask(devinfo) && dst_writemask != WRITEMASK_XYZW)
return false;
/* If this instruction sets anything not referenced by swizzle, then we'd