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[DeLICM/ZoneAlgo] Remove duplicate code. NFC.

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DeLICM and ZoneAlgo both implemented filterKnownValInst.

Declare ZoneAlgo's version in the header and let DeLCIM use it.

llvm-svn: 310381
This commit is contained in:
Michael Kruse 2017-08-08 17:00:27 +00:00
parent 1563f039f5
commit ce67358281
3 changed files with 8 additions and 31 deletions
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7
polly/include/polly/ZoneAlgo.h
View File

@ -29,6 +29,13 @@ class Scop;
class ScopStmt;
class MemoryAccess;
/// Return only the mappings that map to known values.
///
/// @param UMap { [] -> ValInst[] }
///
/// @return { [] -> ValInst[] }
isl::union_map filterKnownValInst(const isl::union_map &UMap);
/// Base class for algorithms based on zones, like DeLICM.
class ZoneAlgorithm {
protected:

25
polly/lib/Transform/DeLICM.cpp
View File

@ -121,31 +121,6 @@ isl::map computeScalarReachingOverwrite(isl::union_map Schedule,
return singleton(std::move(ReachOverwrite), ResultSpace);
}
/// Return whether @p Map maps to an unknown value.
///
/// @param { [] -> ValInst[] }
bool isMapToUnknown(const isl::map &Map) {
auto Space = give(isl_space_range(isl_map_get_space(Map.keep())));
return !isl_map_has_tuple_id(Map.keep(), isl_dim_set) &&
!isl_space_is_wrapping(Space.keep()) &&
isl_map_dim(Map.keep(), isl_dim_out) == 0;
}
/// Return only the mappings that map to known values.
///
/// @param UMap { [] -> ValInst[] }
///
/// @return { [] -> ValInst[] }
isl::union_map filterKnownValInst(const isl::union_map &UMap) {
auto Result = give(isl_union_map_empty(isl_union_map_get_space(UMap.keep())));
UMap.foreach_map([=, &Result](isl::map Map) -> isl::stat {
if (!isMapToUnknown(Map))
Result = give(isl_union_map_add_map(Result.take(), Map.take()));
return isl::stat::ok;
});
return Result;
}
/// Try to find a 'natural' extension of a mapped to elements outside its
/// domain.
///

7
polly/lib/Transform/ZoneAlgo.cpp
View File

@ -246,12 +246,7 @@ static bool isMapToUnknown(const isl::map &Map) {
Space.is_wrapping().is_false() && Space.dim(isl::dim::set) == 0;
}
/// Return only the mappings that map to known values.
///
/// @param UMap { [] -> ValInst[] }
///
/// @return { [] -> ValInst[] }
static isl::union_map filterKnownValInst(const isl::union_map &UMap) {
isl::union_map polly::filterKnownValInst(const isl::union_map &UMap) {
isl::union_map Result = isl::union_map::empty(UMap.get_space());
UMap.foreach_map([=, &Result](isl::map Map) -> isl::stat {
if (!isMapToUnknown(Map))