[fast-isel] Add support for selecting @llvm.trap().

llvm-svn: 156646

2 files changed, 16 insertions, 0 deletions

diff --git a/llvm/lib/Target/ARM/ARMFastISel.cpp b/llvm/lib/Target/ARM/ARMFastISel.cpp
index 9dff0171c3f..97131cd6987 100644
--- a/llvm/lib/Target/ARM/ARMFastISel.cpp
+++ b/llvm/lib/Target/ARM/ARMFastISel.cpp
@@ -2443,6 +2443,10 @@ bool ARMFastISel::SelectIntrinsicCall(const IntrinsicInst &I) {
     
     return SelectCall(&I, "memset");
   }
+  case Intrinsic::trap: {
+    BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, TII.get(ARM::TRAP));
+    return true;
+  }
   }
 }
 
diff --git a/llvm/test/CodeGen/ARM/fast-isel.ll b/llvm/test/CodeGen/ARM/fast-isel.ll
index 417e2d9e410..ecd5fe27a4b 100644
--- a/llvm/test/CodeGen/ARM/fast-isel.ll
+++ b/llvm/test/CodeGen/ARM/fast-isel.ll
@@ -226,3 +226,15 @@ define i32 @urem_fold(i32 %a) nounwind {
   %rem = urem i32 %a, 32
   ret i32 %rem
 }
+
+define i32 @test7() noreturn nounwind  {
+entry:
+; ARM: @test7
+; THUMB: @test7
+; ARM: trap
+; THUMB: trap
+  tail call void @llvm.trap( )
+  unreachable
+}
+
+declare void @llvm.trap() nounwind