From fa1be5d99153a4709740ce5aabba3793e9f77982 Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Tue, 29 Sep 2009 07:07:30 +0000
Subject: Fix PR4687. Pre ARMv5te does not support ldrd / strd. Patch by John
 Tytgat.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83058 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/ARM/ARMLoadStoreOptimizer.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'lib/Target/ARM/ARMLoadStoreOptimizer.cpp')

diff --git a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
index f1a6c642b8..031f5b0da4 100644
--- a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
+++ b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
@@ -1191,6 +1191,10 @@ ARMPreAllocLoadStoreOpt::CanFormLdStDWord(MachineInstr *Op0, MachineInstr *Op1,
                                           unsigned &PredReg,
                                           ARMCC::CondCodes &Pred,
                                           bool &isT2) {
+  // Make sure we're allowed to generate LDRD/STRD.
+  if (!STI->hasV5TEOps())
+    return false;
+
   // FIXME: FLDS / FSTS -> FLDD / FSTD
   unsigned Scale = 1;
   unsigned Opcode = Op0->getOpcode();
-- 
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