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Stack space for argument passing is 32 regardless of 32- vs. 64-bit arch.

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Thanks to Nate Begeman for pointing this out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15930 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Misha Brukman 2004-08-19 21:51:19 +00:00
parent 983e92dc0d
commit 1601d9c1f0
1 changed files with 6 additions and 6 deletions
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12
lib/Target/PowerPC/PPC64ISelSimple.cpp
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@ -94,10 +94,10 @@ namespace {
std::map<AllocaInst*, unsigned> AllocaMap;
// Target configuration data
const unsigned ParameterSaveAreaOffset;
const unsigned ParameterSaveAreaOffset, MaxArgumentStackSpace;
ISel(TargetMachine &tm) : TM(reinterpret_cast<PPC64TargetMachine&>(tm)),
F(0), BB(0), ParameterSaveAreaOffset(24) {}
F(0), BB(0), ParameterSaveAreaOffset(24), MaxArgumentStackSpace(32) {}
bool doInitialization(Module &M) {
// Add external functions that we may call
@ -1290,10 +1290,10 @@ void ISel::doCall(const ValueRecord &Ret, MachineInstr *CallMI,
default: assert(0 && "Unknown class!");
}
// Just to be safe, we'll always reserve the full 64 bytes worth of
// argument passing space in case any called code gets funky on us.
if (NumBytes < ParameterSaveAreaOffset + 64)
NumBytes = ParameterSaveAreaOffset + 64;
// Just to be safe, we'll always reserve the full argument passing space in
// case any called code gets funky on us.
if (NumBytes < ParameterSaveAreaOffset + MaxArgumentStackSpace)
NumBytes = ParameterSaveAreaOffset + MaxArgumentStackSpace;
// Adjust the stack pointer for the new arguments...
// These functions are automatically eliminated by the prolog/epilog pass