[llvm-commits] [llvm] r41160 - /llvm/trunk/lib/Target/Mips/MipsRegisterInfo.cpp

[Bruno Cardoso Lopes]

Author: bruno
Date: Fri Aug 17 21:19:09 2007
New Revision: 41160

URL: http://llvm.org/viewvc/llvm-project?rev=41160&view=rev
Log:
Fixed stack frame addressing bug

Modified:
    llvm/trunk/lib/Target/Mips/MipsRegisterInfo.cpp

Modified: llvm/trunk/lib/Target/Mips/MipsRegisterInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/MipsRegisterInfo.cpp?rev=41160&r1=41159&r2=41160&view=diff

==============================================================================
--- llvm/trunk/lib/Target/Mips/MipsRegisterInfo.cpp (original)
+++ llvm/trunk/lib/Target/Mips/MipsRegisterInfo.cpp Fri Aug 17 21:19:09 2007
@@ -271,15 +271,15 @@
   MipsFunctionInfo *MipsFI = MF.getInfo<MipsFunctionInfo>();
   MachineBasicBlock::iterator MBBI = MBB.begin();
 
-  // Get the number of bytes to allocate from the FrameInfo
+  // Get the number of bytes to allocate from the FrameInfo.
   int NumBytes = (int) MFI->getStackSize();
 
   #ifndef NDEBUG
-  DOUT << "\n<--- EMIT PROLOGUE --->";
+  DOUT << "\n<--- EMIT PROLOGUE --->\n";
   DOUT << "Stack size :" << NumBytes << "\n";
   #endif
 
-  // Do we need to allocate space on the stack?
+  // Don't need to allocate space on the stack.
   if (NumBytes == 0) return;
 
   int FPOffset, RAOffset;
@@ -289,13 +289,13 @@
   // using FP, the last stack slot becomes empty
   // and RA is saved before it.
   if ((hasFP(MF)) && (MFI->hasCalls())) {
-    FPOffset = NumBytes;
-    RAOffset = (NumBytes+4);
+    FPOffset = NumBytes+4;
+    RAOffset = (NumBytes+8);
   } else if ((!hasFP(MF)) && (MFI->hasCalls())) {
     FPOffset = 0;
-    RAOffset = NumBytes;
+    RAOffset = NumBytes+4;
   } else if ((hasFP(MF)) && (!MFI->hasCalls())) {
-    FPOffset = NumBytes;
+    FPOffset = NumBytes+4;
     RAOffset = 0;
   }
 
@@ -310,7 +310,7 @@
   #endif
 
   // Align stack. 
-  NumBytes += 8;
+  NumBytes += 12;
   unsigned Align = MF.getTarget().getFrameInfo()->getStackAlignment();
   NumBytes = ((NumBytes+Align-1)/Align*Align);