[Polly] Use llvm::function_ref. NFC.

Meinersbur · Meinersbur · commit c971b53b22a5 · 2020-08-26T13:15:23.000-05:00
As suggested by David Blaike at https://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20200824/822584.html
diff --git a/polly/include/polly/ScopInfo.h b/polly/include/polly/ScopInfo.h
@@ -2319,7 +2319,7 @@ class Scop {
   ///                      ScopBuilder::buildAccessRelations. Therefore, if this
   ///                      method is called before buildAccessRelations, false
   ///                      must be passed.
-  void removeStmts(std::function<bool(ScopStmt &)> ShouldDelete,
+  void removeStmts(function_ref<bool(ScopStmt &)> ShouldDelete,
                    bool AfterHoisting = true);
 
   /// Get an isl string representing the context.
diff --git a/polly/lib/Analysis/ScopInfo.cpp b/polly/lib/Analysis/ScopInfo.cpp
@@ -1752,7 +1752,7 @@ void Scop::removeFromStmtMap(ScopStmt &Stmt) {
   }
 }
 
-void Scop::removeStmts(std::function<bool(ScopStmt &)> ShouldDelete,
+void Scop::removeStmts(function_ref<bool(ScopStmt &)> ShouldDelete,
                        bool AfterHoisting) {
   for (auto StmtIt = Stmts.begin(), StmtEnd = Stmts.end(); StmtIt != StmtEnd;) {
     if (!ShouldDelete(*StmtIt)) {

Original file line number	Diff line number	Diff line change
`@@ -1752,7 +1752,7 @@ void Scop::removeFromStmtMap(ScopStmt &Stmt) {`
`1752`	`1752`	`}`
`1753`	`1753`	`}`
`1754`	`1754`
`1755`		`-void Scop::removeStmts(std::function<bool(ScopStmt &)> ShouldDelete,`
	`1755`	`+void Scop::removeStmts(function_ref<bool(ScopStmt &)> ShouldDelete,`
`1756`	`1756`	`bool AfterHoisting) {`
`1757`	`1757`	`for (auto StmtIt = Stmts.begin(), StmtEnd = Stmts.end(); StmtIt != StmtEnd;) {`
`1758`	`1758`	`if (!ShouldDelete(*StmtIt)) {`