From: Reed Kotler <rkotler@mips.com>
Date: Wed, 13 Mar 2013 20:40:30 +0000 (+0000)
Subject: Cause the mips16/nomips16 attribute to be passed to LLVM from Clang
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ad4b8b43e66ebc2838fb314358017079665f058f;p=clang

Cause the mips16/nomips16 attribute to be passed to LLVM from Clang
in the LLVM assembly language output.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176971 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/TargetInfo.cpp b/lib/CodeGen/TargetInfo.cpp
index 81267ca767..556999f61b 100644
--- a/lib/CodeGen/TargetInfo.cpp
+++ b/lib/CodeGen/TargetInfo.cpp
@@ -4321,11 +4321,17 @@ public:
 
   void SetTargetAttributes(const Decl *D, llvm::GlobalValue *GV,
                            CodeGen::CodeGenModule &CGM) const {
-    //
-    // can fill this in when new attribute work in llvm is done.
-    // attributes mips16 and nomips16 need to be handled here.
-    //
+    const FunctionDecl *FD = dyn_cast<FunctionDecl>(D);
+    if (!FD) return;
+    llvm::Function *Fn = cast<llvm::Function>(GV);
+    if (FD->hasAttr<Mips16Attr>()) {
+      Fn->addFnAttr("mips16");
+    }
+    else if (FD->hasAttr<NoMips16Attr>()) {
+      Fn->addFnAttr("nomips16");
+    }
   }
+
   bool initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF,
                                llvm::Value *Address) const;
 
diff --git a/test/CodeGen/mips16-attr.c b/test/CodeGen/mips16-attr.c
new file mode 100644
index 0000000000..326ee7bdd5
--- /dev/null
+++ b/test/CodeGen/mips16-attr.c
@@ -0,0 +1,17 @@
+// RUN: %clang_cc1 -triple mipsel-linux-gnu -emit-llvm  -o  - %s | FileCheck %s
+void __attribute__((mips16)) foo (void) {
+
+}
+
+// CHECK: define void @foo() [[MIPS16:#[0-9]+]]
+
+void __attribute__((nomips16)) nofoo (void) {
+
+}
+
+// CHECK: define void @nofoo() [[NOMIPS16:#[0-9]+]]
+
+// CHECK: attributes [[MIPS16]] = { nounwind "fp-contract-model"="standard" "mips16" {{.*}} }
+
+// CHECK: attributes [[NOMIPS16]]  = { nounwind "fp-contract-model"="standard" "nomips16" {{.*}} }
+