[llvm-commits] CVS: llvm/lib/Target/ARM/ARMISelLowering.cpp

[Chris Lattner]

Changes in directory llvm/lib/Target/ARM:

ARMISelLowering.cpp updated: 1.41 -> 1.42
---
Log message:

restore support for negative strides


---
Diffs of the changes:  (+5 -3)

 ARMISelLowering.cpp |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)


Index: llvm/lib/Target/ARM/ARMISelLowering.cpp
diff -u llvm/lib/Target/ARM/ARMISelLowering.cpp:1.41 llvm/lib/Target/ARM/ARMISelLowering.cpp:1.42
--- llvm/lib/Target/ARM/ARMISelLowering.cpp:1.41	Mon Apr  9 18:33:39 2007
+++ llvm/lib/Target/ARM/ARMISelLowering.cpp	Mon Apr  9 22:48:29 2007
@@ -1372,6 +1372,7 @@
       return false;
 
   default:
+    int Scale = AM.Scale;
     switch (getValueType(Ty)) {
     default: return false;
     case MVT::i1:
@@ -1381,14 +1382,15 @@
       // This assumes i64 is legalized to a pair of i32. If not (i.e.
       // ldrd / strd are used, then its address mode is same as i16.
       // r + r
-      if (AM.Scale == 1)
+      if (Scale < 0) Scale = -Scale;
+      if (Scale == 1)
         return true;
       // r + r << imm
-      if (!isPowerOf2_32(AM.Scale & ~1))
+      if (!isPowerOf2_32(Scale & ~1))
         return false;
     case MVT::i16:
       // r + r
-      if (((unsigned)AM.HasBaseReg + AM.Scale) <= 2)
+      if (((unsigned)AM.HasBaseReg + Scale) <= 2)
         return true;
 
     case MVT::isVoid: