From 9d45de252c7c3851c0159db4dcaa31e93598b29e Mon Sep 17 00:00:00 2001
From: Bob Wilson <bob.wilson@apple.com>
Date: Tue, 18 Oct 2011 18:46:49 +0000
Subject: [PATCH] Use isIntN and isUIntN to check for valid signed/unsigned
 numbers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142395 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/ARM/ARMISelLowering.cpp | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index c6b9dcc1c46..04b91398156 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -4526,11 +4526,10 @@ static bool isExtendedBUILD_VECTOR(SDNode *N, SelectionDAG &DAG,
       unsigned EltSize = VT.getVectorElementType().getSizeInBits();
       unsigned HalfSize = EltSize / 2;
       if (isSigned) {
-        int64_t SExtVal = C->getSExtValue();
-        if (SExtVal != SExtVal << (64 - HalfSize) >> (64 - HalfSize))
+        if (!isIntN(HalfSize, C->getSExtValue()))
           return false;
       } else {
-        if ((C->getZExtValue() >> HalfSize) != 0)
+        if (!isUIntN(HalfSize, C->getZExtValue()))
           return false;
       }
       continue;