//
NumBytes += MFI->getMaxCallFrameSize() +
24 /* Predefined PowerPC link area */ +
- // FIXME: must calculate #non-volatile int regs actually spilled
- 19*4 /* Spilled int regs */ +
- // FIXME: must calculate #non-volatile fp regs actually spilled
- 0*8 /* Spilled fp regs */;
+ 32 /* Predefined PowerPC params area */ +
+ 0 /* local variables - managed by llvm*/ +
+ 0 * 4 /* volatile GPRs used - managed by llvm */ +
+ 0 * 8 /* volatile FPRs used - managed by llvm */;
+
// Round the size to a multiple of the alignment (don't forget the 4 byte
// offset though).
// Store the incoming LR so it is preserved across calls
MI = BuildMI(PPC32::MFLR, 0, PPC32::R0);
MBB.insert(MBBI, MI);
- // FIXME: store only CLOBBERED registers in R[13-31]
- MI = BuildMI(PPC32::STMW, 3).addReg(PPC32::R13).addSImm(-76)
- .addReg(PPC32::R1);
- MBB.insert(MBBI, MI);
- MI = BuildMI(PPC32::STW, 3).addReg(PPC32::R0).addSImm(8).addReg(PPC32::R1);
+ MI = BuildMI(PPC32::STW, 3).addReg(PPC32::R0).addImm(8).addReg(PPC32::R1);
MBB.insert(MBBI, MI);
}
// Get the number of bytes allocated from the FrameInfo...
unsigned NumBytes = MFI->getStackSize();
- // Adjust stack pointer back
- MI = BuildMI(PPC32::LWZ, 2, PPC32::R1).addImm(0).addReg(PPC32::R1);
- MBB.insert(MBBI, MI);
-
// If we have calls, restore the LR value before we branch to it
// FIXME: the assembly printer inserts "calls" aka branch-and-link to get the
// PC address. We may not know about those calls at this time, so be
// conservative.
if (MFI->hasCalls() || true) {
- // Read old LR from stack into R0
- MI = BuildMI(PPC32::LWZ, 2, PPC32::R0).addSImm(8).addReg(PPC32::R1);
- MBB.insert(MBBI, MI);
- // FIXME: restore only SAVED registers in R[13-31]
- MI = BuildMI(PPC32::LMW, 2, PPC32::R13).addSImm(-76).addReg(PPC32::R1);
+ // Restore LR
+ MI = BuildMI(PPC32::LWZ, 2, PPC32::R0).addSImm(NumBytes+8).addReg(PPC32::R1);
MBB.insert(MBBI, MI);
MI = BuildMI(PPC32::MTLR, 1).addReg(PPC32::R0);
MBB.insert(MBBI, MI);
}
+ // Adjust stack pointer back
+ MI = BuildMI(PPC32::ADDI, 2, PPC32::R1).addReg(PPC32::R1).addImm(NumBytes);
+ MBB.insert(MBBI, MI);
}
#include "PowerPCGenRegisterInfo.inc"