[clang-tools-extra] Add clang-tidy check to suggest replacement of conditional statement with std::min/std::max (PR #77816)

[Bhuminjay Soni via cfe-commits]

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@@ -0,0 +1,34 @@
+// RUN: %check_clang_tidy %s readability-use-std-min-max %t
+
+void foo() {
+  int value1,value2,value3;
+  short value4;
+
+  // CHECK-MESSAGES: :[[@LINE+1]]:3: warning: use `std::max` instead of `<` [readability-use-std-min-max]
+  if (value1 < value2)
+    value1 = value2; // CHECK-FIXES: value1 = std::max(value1, value2);
+
+  // CHECK-MESSAGES: :[[@LINE+1]]:3: warning: use `std::min` instead of `<` [readability-use-std-min-max]
+  if (value1 < value2)
+    value2 = value1; // CHECK-FIXES: value2 = std::min(value1, value2);
+
+  // CHECK-MESSAGES: :[[@LINE+1]]:3: warning: use `std::min` instead of `>` [readability-use-std-min-max]
+  if (value2 > value1)
+    value2 = value1; // CHECK-FIXES: value2 = std::min(value2, value1);
+
+  // CHECK-MESSAGES: :[[@LINE+1]]:3: warning: use `std::max` instead of `>` [readability-use-std-min-max
+  if (value2 > value1)
+    value1 = value2; // CHECK-FIXES: value1 = std::max(value2, value1);
+
+  // No suggestion needed here
+  if (value1 == value2)
+    value1 = value2;
+  
+  // CHECK-MESSAGES: :[[@LINE+1]]:3: warning: use `std::max` instead of `<` [readability-use-std-min-max]
+  if(value1<value4)
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11happy wrote:

I ran clang-format -i thisfile.cpp this time but no change, can you please help me , also Usually always before my commits I run git clang-format HEAD~1 but it suggested no change to this

https://github.com/llvm/llvm-project/pull/77816