[llvm] aaacd8c - Add llvm::equal convenient wrapper for ranges around std::equal

[Mehdi Amini via llvm-commits]

Author: Mehdi Amini
Date: 2021-07-28T00:10:22Z
New Revision: aaacd8c40622f11f9f98c1a33373f97437e228d6

URL: https://github.com/llvm/llvm-project/commit/aaacd8c40622f11f9f98c1a33373f97437e228d6
DIFF: https://github.com/llvm/llvm-project/commit/aaacd8c40622f11f9f98c1a33373f97437e228d6.diff

LOG: Add llvm::equal convenient wrapper for ranges around std::equal

Differential Revision: https://reviews.llvm.org/D106913

Added: 
    

Modified: 
    llvm/include/llvm/ADT/STLExtras.h
    mlir/include/mlir/IR/OpBase.td

Removed: 
    


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diff  --git a/llvm/include/llvm/ADT/STLExtras.h b/llvm/include/llvm/ADT/STLExtras.h
index 372907be8a11d..eb001346b6093 100644
--- a/llvm/include/llvm/ADT/STLExtras.h
+++ b/llvm/include/llvm/ADT/STLExtras.h
@@ -1688,6 +1688,13 @@ auto unique(Range &&R, Predicate P) {
   return std::unique(adl_begin(R), adl_end(R), P);
 }
 
+/// Wrapper function around std::equal to detect if pair-wise elements between
+/// two ranges are the same.
+template <typename L, typename R> bool equal(L &&LRange, R &&RRange) {
+  return std::equal(adl_begin(LRange), adl_end(LRange), adl_begin(RRange),
+                    adl_end(RRange));
+}
+
 /// Wrapper function around std::equal to detect if all elements
 /// in a container are same.
 template <typename R>

diff  --git a/mlir/include/mlir/IR/OpBase.td b/mlir/include/mlir/IR/OpBase.td
index c457cab3fd40d..c3fb49035f8a4 100644
--- a/mlir/include/mlir/IR/OpBase.td
+++ b/mlir/include/mlir/IR/OpBase.td
@@ -2366,10 +2366,7 @@ class TypesMatchWith<string summary, string lhsArg, string rhsArg,
 // ranged arguments.
 class RangedTypesMatchWith<string summary, string lhsArg, string rhsArg,
                            string transform>
-  : TypesMatchWith<summary, lhsArg, rhsArg, transform,
-    "[](auto &&lhs, auto &&rhs) { "
-    "return std::equal(lhs.begin(), lhs.end(), rhs.begin(), rhs.end());"
-    " }">;
+  : TypesMatchWith<summary, lhsArg, rhsArg, transform, "llvm::equal">;
 
 // Type Constraint operand `idx`'s Element type is `type`.
 class TCopVTEtIs<int idx, Type type> : And<[