vendor/clang/clang-release_80-r351543

1 files changed, 10 insertions, 12 deletions

diff --git a/lib/CodeGen/TargetInfo.cpp b/lib/CodeGen/TargetInfo.cpp
index 89ec73670a73..f5a770ed9d84 100644
--- a/lib/CodeGen/TargetInfo.cpp
+++ b/lib/CodeGen/TargetInfo.cpp
@@ -6774,21 +6774,19 @@ void MSP430TargetCodeGenInfo::setTargetAttributes(
   if (GV->isDeclaration())
     return;
   if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) {
-    if (const MSP430InterruptAttr *attr = FD->getAttr<MSP430InterruptAttr>()) {
-      // Handle 'interrupt' attribute:
-      llvm::Function *F = cast<llvm::Function>(GV);
+    const auto *InterruptAttr = FD->getAttr<MSP430InterruptAttr>();
+    if (!InterruptAttr)
+      return;
 
-      // Step 1: Set ISR calling convention.
-      F->setCallingConv(llvm::CallingConv::MSP430_INTR);
+    // Handle 'interrupt' attribute:
+    llvm::Function *F = cast<llvm::Function>(GV);
 
-      // Step 2: Add attributes goodness.
-      F->addFnAttr(llvm::Attribute::NoInline);
+    // Step 1: Set ISR calling convention.
+    F->setCallingConv(llvm::CallingConv::MSP430_INTR);
 
-      // Step 3: Emit ISR vector alias.
-      unsigned Num = attr->getNumber() / 2;
-      llvm::GlobalAlias::create(llvm::Function::ExternalLinkage,
-                                "__isr_" + Twine(Num), F);
-    }
+    // Step 2: Add attributes goodness.
+    F->addFnAttr(llvm::Attribute::NoInline);
+    F->addFnAttr("interrupt", llvm::utostr(InterruptAttr->getNumber()));
   }
 }