commit 9f2518cdc6321d8cfb16973654df2996bad8ad78
author Hal Finkel <hfinkel@anl.gov> Mon Mar 18 23:58:28 2013 +0000
committer Hal Finkel <hfinkel@anl.gov> Mon Mar 18 23:58:28 2013 +0000
tree 4f72fe0f90bc4a3ec4a14311fd97a09f14ec516e
parent f31034db8c12197d00b3e356e1d2a702c2339d49

Fix a sign-extension bug in PPCCTRLoops

Don't sign extend the immediate value from the OR instruction in
an LIS/OR pair.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177361 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/PowerPC/PPCCTRLoops.cpp

diff --git a/lib/Target/PowerPC/PPCCTRLoops.cpp b/lib/Target/PowerPC/PPCCTRLoops.cpp
index ecece8c..5b20f81 100644
--- a/lib/Target/PowerPC/PPCCTRLoops.cpp
+++ b/lib/Target/PowerPC/PPCCTRLoops.cpp
@@ -396,7 +396,7 @@
         // Here we need to look for an immediate load (an li or lis/ori pair).
         if (DefInstr && (DefInstr->getOpcode() == PPC::ORI8 ||
                          DefInstr->getOpcode() == PPC::ORI)) {
-          int64_t start = (short) DefInstr->getOperand(2).getImm();
+          int64_t start = DefInstr->getOperand(2).getImm();
           MachineInstr *DefInstr2 =
             MRI->getVRegDef(DefInstr->getOperand(1).getReg());
           if (DefInstr2 && (DefInstr2->getOpcode() == PPC::LIS8 ||