This checks whether two register regions are an exact match.
---
src/intel/compiler/brw_ir_fs.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/src/intel/compiler/brw_ir_fs.h b/src/intel/compiler/brw_ir_fs.h
index f06a33c516d..cad333b6b6d 100644
--- a/src/intel/compiler/brw_ir_fs.h
+++ b/src/intel/compiler/brw_ir_fs.h
@@ -239,6 +239,19 @@ region_contained_in(const fs_reg &r, unsigned dr, const
fs_reg &s, unsigned ds)
reg_offset(r) + dr <= reg_offset(s) + ds;
}
+/**
+ * Check that the register region given by r [r.offset, r.offset + dr[
+ * is exactly the same as the the register region given by s
+ * [s.offset, s.offset + ds[
+ */
+static inline bool
+region_match(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
--
2.14.1
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