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i965/fs: Emit fixed-width null register regardless of the dispatch width.

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brw_null_vec() cannot handle widths over 16 but it doesn't really
matter what width we specify for null registers because destination
regions have no width field at the hardware level.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Francisco Jerez 2016-05-19 21:26:51 -07:00
parent 298320280f
commit 8b6edee679
1 changed files with 4 additions and 8 deletions
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12
src/mesa/drivers/dri/i965/brw_fs_builder.h
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@ -202,15 +202,13 @@ namespace brw {
dst_reg
null_reg_f() const
{
return dst_reg(retype(brw_null_vec(dispatch_width()),
BRW_REGISTER_TYPE_F));
return dst_reg(retype(brw_null_reg(), BRW_REGISTER_TYPE_F));
}
dst_reg
null_reg_df() const
{
return dst_reg(retype(brw_null_vec(dispatch_width()),
BRW_REGISTER_TYPE_DF));
return dst_reg(retype(brw_null_reg(), BRW_REGISTER_TYPE_DF));
}
/**
@ -219,8 +217,7 @@ namespace brw {
dst_reg
null_reg_d() const
{
return dst_reg(retype(brw_null_vec(dispatch_width()),
BRW_REGISTER_TYPE_D));
return dst_reg(retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
}
/**
@ -229,8 +226,7 @@ namespace brw {
dst_reg
null_reg_ud() const
{
return dst_reg(retype(brw_null_vec(dispatch_width()),
BRW_REGISTER_TYPE_UD));
return dst_reg(retype(brw_null_reg(), BRW_REGISTER_TYPE_UD));
}
/**