From 94046b4d103cb72734611708d24674e438e16aae Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Fri, 28 Apr 2006 22:21:41 +0000
Subject: [PATCH] Fix InstCombine/2006-04-28-ShiftShiftLongLong.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28019 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/Scalar/InstructionCombining.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index 590e0d9d97e..7e9c3841cce 100644
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -4435,7 +4435,7 @@ Instruction *InstCombiner::FoldShiftByConstant(Value *Op0, ConstantUInt *Op1,
       // this case, C1 == C2 and C1 is 8, 16, or 32.
       if (ShiftAmt1 == ShiftAmt2) {
         const Type *SExtType = 0;
-        switch (ShiftAmt1) {
+        switch (Op0->getType()->getPrimitiveSizeInBits() - ShiftAmt1) {
         case 8 : SExtType = Type::SByteTy; break;
         case 16: SExtType = Type::ShortTy; break;
         case 32: SExtType = Type::IntTy; break;