[llvm-commits] CVS: llvm/lib/Target/PowerPC/PPC32ISelSimple.cpp

[Nate Begeman]

Changes in directory llvm/lib/Target/PowerPC:

PPC32ISelSimple.cpp updated: 1.65 -> 1.66
---
Log message:

Fix mismatched adjust down/up of SP in functions that contain variable
sized allocas.


---
Diffs of the changes:  (+4 -4)

Index: llvm/lib/Target/PowerPC/PPC32ISelSimple.cpp
diff -u llvm/lib/Target/PowerPC/PPC32ISelSimple.cpp:1.65 llvm/lib/Target/PowerPC/PPC32ISelSimple.cpp:1.66
--- llvm/lib/Target/PowerPC/PPC32ISelSimple.cpp:1.65	Sun Aug 15 01:42:28 2004
+++ llvm/lib/Target/PowerPC/PPC32ISelSimple.cpp	Sun Aug 15 20:50:22 2004
@@ -1439,9 +1439,9 @@
       default: assert(0 && "Unknown class!");
       }
 
-    // Just to be safe, we'll always reserve the full 32 bytes worth of
-    // argument passing space in case any called code gets funky on us.
-    if (NumBytes < 24 + 32) NumBytes = 24 + 32;
+    // Just to be safe, we'll always reserve the full 24 bytes of linkage area 
+    // plus 32 bytes of argument space in case any called code gets funky on us.
+    if (NumBytes < 56) NumBytes = 56;
 
     // Adjust the stack pointer for the new arguments...
     // These functions are automatically eliminated by the prolog/epilog pass
@@ -1586,7 +1586,7 @@
       GPR_idx++;
     }
   } else {
-    BuildMI(BB, PPC::ADJCALLSTACKDOWN, 1).addImm(0);
+    BuildMI(BB, PPC::ADJCALLSTACKDOWN, 1).addImm(NumBytes);
   }
   
   BuildMI(BB, PPC::IMPLICIT_DEF, 0, PPC::LR);