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Do not forget to save R15 when we allocate stack frame

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75995 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov 2009-07-16 14:11:40 +00:00
parent c94fdf76dd
commit 66f1b378bc
1 changed files with 2 additions and 1 deletions
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3
lib/Target/SystemZ/SystemZRegisterInfo.cpp
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@ -149,7 +149,8 @@ SystemZRegisterInfo::processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
/* FIXME: function calls eh_return */)
MF.getRegInfo().setPhysRegUsed(SystemZ::R14D);
if (FFI->getObjectIndexEnd() != 0 || // Contains automatic variables
if (FFI->hasCalls() ||
FFI->getObjectIndexEnd() != 0 || // Contains automatic variables
FFI->hasVarSizedObjects() // Function calls dynamic alloca's
/* FIXME: function is varargs */)
MF.getRegInfo().setPhysRegUsed(SystemZ::R15D);