From d2f44d8de01a635e197b3ad4dcafdab5f2b4408a Mon Sep 17 00:00:00 2001
From: Nirav Dave <niravd@google.com>
Date: Tue, 5 Apr 2016 17:50:43 +0000
Subject: Add -fno-jump-tables and-fjump-tables flags

Add no-jump-tables flag to disable use of jump tables when lowering
switch statements

Reviewers: echristo, hans

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D18407

llvm-svn: 265425
---
 clang/lib/CodeGen/CodeGenFunction.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'clang/lib/CodeGen/CodeGenFunction.cpp')

diff --git a/clang/lib/CodeGen/CodeGenFunction.cpp b/clang/lib/CodeGen/CodeGenFunction.cpp
index 71c364cabc5..8acc256cb3f 100644
--- a/clang/lib/CodeGen/CodeGenFunction.cpp
+++ b/clang/lib/CodeGen/CodeGenFunction.cpp
@@ -711,6 +711,10 @@ void CodeGenFunction::StartFunction(GlobalDecl GD,
       Fn->addFnAttr(llvm::Attribute::NoInline);
   }
 
+  // Add no-jump-tables value.
+  Fn->addFnAttr("no-jump-tables",
+                llvm::toStringRef(CGM.getCodeGenOpts().NoUseJumpTables));
+
   if (getLangOpts().OpenCL) {
     // Add metadata for a kernel function.
     if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D))
-- 
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