[llvm] r286961 - [X86][FastISel] Assert that we are dealing with arithmetic with overflow intrinsics. NFC

[Zvi Rackover via llvm-commits]

Author: zvi
Date: Tue Nov 15 07:50:35 2016
New Revision: 286961

URL: http://llvm.org/viewvc/llvm-project?rev=286961&view=rev
Log:
[X86][FastISel] Assert that we are dealing with arithmetic with overflow intrinsics. NFC

Modified:
    llvm/trunk/lib/Target/X86/X86FastISel.cpp

Modified: llvm/trunk/lib/Target/X86/X86FastISel.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86FastISel.cpp?rev=286961&r1=286960&r2=286961&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86FastISel.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86FastISel.cpp Tue Nov 15 07:50:35 2016
@@ -2769,6 +2769,9 @@ bool X86FastISel::fastLowerIntrinsicCall
     const Function *Callee = II->getCalledFunction();
     auto *Ty = cast<StructType>(Callee->getReturnType());
     Type *RetTy = Ty->getTypeAtIndex(0U);
+    assert(Ty->getTypeAtIndex(1)->isIntegerTy() &&
+           Ty->getTypeAtIndex(1)->getScalarSizeInBits() == 1 &&
+           "Overflow value expected to be an i1");
 
     MVT VT;
     if (!isTypeLegal(RetTy, VT))