From: Chris Lattner <sabre@nondot.org>
Date: Fri, 13 Apr 2007 06:50:55 +0000 (+0000)
Subject: arm has r+r*s and r+i addr modes, but no r+i+r*s addr modes.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=5a3d40d88fbfe79ad7ed5802ff4fd1498c4c820b;p=oota-llvm.git

arm has r+r*s and r+i addr modes, but no r+i+r*s addr modes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35962 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index 219e4e14374..0cef4cce68f 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -1370,8 +1370,12 @@ bool ARMTargetLowering::isLegalAddressingMode(const AddrMode &AM,
   case 1:
     if (Subtarget->isThumb())
       return false;
-
+    // FALL THROUGH.
   default:
+    // ARM doesn't support any R+R*scale+imm addr modes.
+    if (AM.BaseOffs)
+      return false;
+    
     int Scale = AM.Scale;
     switch (getValueType(Ty)) {
     default: return false;