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i965/fs: Move region_contained_in to the IR header and fix for non-VGRF files.

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Also changed the argument names since 'src' and 'dst' don't make that
much sense outside of the context of copy propagation.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
This commit is contained in:
Francisco Jerez 2016-09-01 20:03:44 -07:00
parent 645261c4b2
commit f2d2156ba2
2 changed files with 13 additions and 14 deletions
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14
src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp
View file

@ -332,20 +332,6 @@ can_take_stride(fs_inst *inst, unsigned arg, unsigned stride,
return true;
}
/**
* Check that the register region read by src [src.offset,
* src.offset + size_read[ is fully contained inside the register
* region written by dst [dst.offset, dst.offset + size_written[.
*/
static inline bool
region_contained_in(const fs_reg &src, unsigned size_read,
const fs_reg &dst, unsigned size_written)
{
return src.file == dst.file && src.nr == dst.nr &&
src.offset >= dst.offset &&
src.offset + size_read <= dst.offset + size_written;
}
bool
fs_visitor::try_copy_propagate(fs_inst *inst, int arg, acp_entry *entry)
{

13
src/mesa/drivers/dri/i965/brw_ir_fs.h
View file

@ -228,6 +228,19 @@ regions_overlap(const fs_reg &r, unsigned dr, const fs_reg &s, unsigned ds)
}
}
/**
* Check that the register region given by r [r.offset, r.offset + dr[
* is fully contained inside the register region given by s
* [s.offset, s.offset + ds[.
*/
static inline bool
region_contained_in(const fs_reg &r, unsigned dr, const fs_reg &s, unsigned ds)
{
return reg_space(r) == reg_space(s) &&
reg_offset(r) >= reg_offset(s) &&
reg_offset(r) + dr <= reg_offset(s) + ds;
}
/**
* Return whether the given register region is n-periodic, i.e. whether the
* original region remains invariant after shifting it by \p n scalar