[llvm] r271018 - Use StringRef::startswith instead of find(...) == 0.

[Benjamin Kramer via llvm-commits]

Author: d0k
Date: Fri May 27 11:54:57 2016
New Revision: 271018

URL: http://llvm.org/viewvc/llvm-project?rev=271018&view=rev
Log:
Use StringRef::startswith instead of find(...) == 0.

It's faster and easier to read.

Modified:
    llvm/trunk/lib/Target/ARM/ARMAsmPrinter.cpp
    llvm/trunk/lib/Transforms/Instrumentation/AddressSanitizer.cpp

Modified: llvm/trunk/lib/Target/ARM/ARMAsmPrinter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMAsmPrinter.cpp?rev=271018&r1=271017&r2=271018&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMAsmPrinter.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMAsmPrinter.cpp Fri May 27 11:54:57 2016
@@ -644,7 +644,7 @@ void ARMAsmPrinter::emitAttributes() {
 
   const std::string &CPUString = STI.getCPUString();
 
-  if (CPUString.find("generic") != 0) { //CPUString doesn't start with "generic"
+  if (!StringRef(CPUString).startswith("generic")) {
     // FIXME: remove krait check when GNU tools support krait cpu
     if (STI.isKrait()) {
       ATS.emitTextAttribute(ARMBuildAttrs::CPU_name, "cortex-a9");

Modified: llvm/trunk/lib/Transforms/Instrumentation/AddressSanitizer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Instrumentation/AddressSanitizer.cpp?rev=271018&r1=271017&r2=271018&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Instrumentation/AddressSanitizer.cpp (original)
+++ llvm/trunk/lib/Transforms/Instrumentation/AddressSanitizer.cpp Fri May 27 11:54:57 2016
@@ -848,9 +848,9 @@ static GlobalVariable *createPrivateGlob
 }
 
 static bool GlobalWasGeneratedByAsan(GlobalVariable *G) {
-  return G->getName().find(kAsanGenPrefix) == 0 ||
-         G->getName().find(kSanCovGenPrefix) == 0 ||
-         G->getName().find(kODRGenPrefix) == 0;
+  return G->getName().startswith(kAsanGenPrefix) ||
+         G->getName().startswith(kSanCovGenPrefix) ||
+         G->getName().startswith(kODRGenPrefix);
 }
 
 Value *AddressSanitizer::memToShadow(Value *Shadow, IRBuilder<> &IRB) {