From: Richard Osborne <richard@xmos.com>
Date: Wed, 15 Jul 2009 15:46:56 +0000 (+0000)
Subject: Fix XCoreTargetLowering::isLegalAddressingMode to handle non simple VTs.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=3af282f16a5189c864ac3032387b593adfad49fe;p=oota-llvm.git

Fix XCoreTargetLowering::isLegalAddressingMode to handle non simple VTs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75788 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/XCore/XCoreISelLowering.cpp b/lib/Target/XCore/XCoreISelLowering.cpp
index f6a181e640e..d65495076e4 100644
--- a/lib/Target/XCore/XCoreISelLowering.cpp
+++ b/lib/Target/XCore/XCoreISelLowering.cpp
@@ -874,44 +874,30 @@ static inline bool isImmUs4(int64_t val)
 bool
 XCoreTargetLowering::isLegalAddressingMode(const AddrMode &AM, 
                                               const Type *Ty) const {
-  MVT VT = getValueType(Ty, true);
-  // Get expected value type after legalization
-  switch (VT.getSimpleVT()) {
-  // Legal load / stores
-  case MVT::i8:
-  case MVT::i16:
-  case MVT::i32:
-    break;
-  // Expand i1 -> i8
-  case MVT::i1:
-    VT = MVT::i8;
-    break;
-  // Everything else is lowered to words
-  default:
-    VT = MVT::i32;
-    break;
-  }
+  const TargetData *TD = TM.getTargetData();
+  unsigned Size = TD->getTypeAllocSize(Ty);
   if (AM.BaseGV) {
-    return VT == MVT::i32 && !AM.HasBaseReg && AM.Scale == 0 &&
+    return Size >= 4 && !AM.HasBaseReg && AM.Scale == 0 &&
                  AM.BaseOffs%4 == 0;
   }
   
-  switch (VT.getSimpleVT()) {
-  default:
-    return false;
-  case MVT::i8:
+  switch (Size) {
+  case 1:
     // reg + imm
     if (AM.Scale == 0) {
       return isImmUs(AM.BaseOffs);
     }
+    // reg + reg
     return AM.Scale == 1 && AM.BaseOffs == 0;
-  case MVT::i16:
+  case 2:
+  case 3:
     // reg + imm
     if (AM.Scale == 0) {
       return isImmUs2(AM.BaseOffs);
     }
+    // reg + reg<<1
     return AM.Scale == 2 && AM.BaseOffs == 0;
-  case MVT::i32:
+  default:
     // reg + imm
     if (AM.Scale == 0) {
       return isImmUs4(AM.BaseOffs);
diff --git a/test/CodeGen/XCore/2009-07-15-store192.ll b/test/CodeGen/XCore/2009-07-15-store192.ll
new file mode 100644
index 00000000000..874d8dc3d7f
--- /dev/null
+++ b/test/CodeGen/XCore/2009-07-15-store192.ll
@@ -0,0 +1,7 @@
+; RUN: llvm-as < %s | llc -march=xcore > %t1.s
+define void @store32(i8* %p) nounwind {
+entry:
+	%0 = bitcast i8* %p to i192*
+	store i192 0, i192* %0, align 4
+	ret void
+}