From c04e57d1337d185b6d3ab46480aeb90d51d7453d Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu@google.com>
Date: Tue, 28 Oct 2025 16:15:08 -0700
Subject: [PATCH] [llvm] Use StringRef::contains (NFC) (#165397)

Identified with readability-container-contains
---
 llvm/include/llvm/IR/Mangler.h                     | 3 +--
 llvm/lib/Target/NVPTX/NVPTXTargetTransformInfo.cpp | 2 +-
 llvm/lib/Target/SystemZ/SystemZISelLowering.cpp    | 3 +--
 3 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/llvm/include/llvm/IR/Mangler.h b/llvm/include/llvm/IR/Mangler.h
index 232101a8926b..4d387ba73127 100644
--- a/llvm/include/llvm/IR/Mangler.h
+++ b/llvm/include/llvm/IR/Mangler.h
@@ -80,8 +80,7 @@ getArm64ECDemangledFunctionName(StringRef Name);
 
 /// Check if an ARM64EC function name is mangled.
 bool inline isArm64ECMangledFunctionName(StringRef Name) {
-  return Name[0] == '#' ||
-         (Name[0] == '?' && Name.find("@$$h") != StringRef::npos);
+  return Name[0] == '#' || (Name[0] == '?' && Name.contains("@$$h"));
 }
 
 } // End llvm namespace
diff --git a/llvm/lib/Target/NVPTX/NVPTXTargetTransformInfo.cpp b/llvm/lib/Target/NVPTX/NVPTXTargetTransformInfo.cpp
index 4029e143ae2a..729c077884f3 100644
--- a/llvm/lib/Target/NVPTX/NVPTXTargetTransformInfo.cpp
+++ b/llvm/lib/Target/NVPTX/NVPTXTargetTransformInfo.cpp
@@ -493,7 +493,7 @@ NVPTXTTIImpl::getInstructionCost(const User *U,
             // predicate ("@").
             return !AsmInst.empty() &&
                    (AsmInst[0] == '@' || isAlpha(AsmInst[0]) ||
-                    AsmInst.find(".pragma") != StringRef::npos);
+                    AsmInst.contains(".pragma"));
           });
       return InstCount * TargetTransformInfo::TCC_Basic;
     }
diff --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
index 3da720f54e6a..58109acc9201 100644
--- a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
@@ -8973,8 +8973,7 @@ SystemZTargetLowering::getJumpConditionMergingParams(Instruction::BinaryOps Opc,
         if (const auto *CB = dyn_cast<CallBase>(RHSVal)) {
           if (CB->isInlineAsm()) {
             const InlineAsm *IA = cast<InlineAsm>(CB->getCalledOperand());
-            return IA &&
-                   IA->getConstraintString().find("{@cc}") != std::string::npos;
+            return IA && IA->getConstraintString().contains("{@cc}");
           }
         }
       }