diff options
| author | Bill Wendling <isanbard@gmail.com> | 2009-02-23 00:42:30 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2009-02-23 00:42:30 +0000 |
| commit | ef4cfc749a61d0d0252196c957697436ba7ec068 (patch) | |
| tree | 7acb11187b1a550cfa710de0d48dd9362fc10814 /lib/Target/Sparc | |
| parent | 4214a5531cdbe538a358033f1847e55c4436be1b (diff) | |
Propagate debug loc info through prologue/epilogue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65298 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Sparc')
| -rw-r--r-- | lib/Target/Sparc/SparcRegisterInfo.cpp | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/lib/Target/Sparc/SparcRegisterInfo.cpp b/lib/Target/Sparc/SparcRegisterInfo.cpp index d8964d90f6..59efb19ab9 100644 --- a/lib/Target/Sparc/SparcRegisterInfo.cpp +++ b/lib/Target/Sparc/SparcRegisterInfo.cpp @@ -120,7 +120,9 @@ processFunctionBeforeFrameFinalized(MachineFunction &MF) const {} void SparcRegisterInfo::emitPrologue(MachineFunction &MF) const { MachineBasicBlock &MBB = MF.front(); MachineFrameInfo *MFI = MF.getFrameInfo(); - DebugLoc dl = DebugLoc::getUnknownLoc(); + MachineBasicBlock::iterator MBBI = MBB.begin(); + DebugLoc dl = (MBBI != MBB.end() ? + MBBI->getDebugLoc() : DebugLoc::getUnknownLoc()); // Get the number of bytes to allocate from the FrameInfo int NumBytes = (int) MFI->getStackSize(); @@ -133,24 +135,24 @@ void SparcRegisterInfo::emitPrologue(MachineFunction &MF) const { // ---------- // 23 words * 4 bytes per word = 92 bytes NumBytes += 92; + // Round up to next doubleword boundary -- a double-word boundary // is required by the ABI. NumBytes = (NumBytes + 7) & ~7; NumBytes = -NumBytes; if (NumBytes >= -4096) { - BuildMI(MBB, MBB.begin(), dl, TII.get(SP::SAVEri), - SP::O6).addReg(SP::O6).addImm(NumBytes); + BuildMI(MBB, MBBI, dl, TII.get(SP::SAVEri), SP::O6) + .addReg(SP::O6).addImm(NumBytes); } else { - MachineBasicBlock::iterator InsertPt = MBB.begin(); // Emit this the hard way. This clobbers G1 which we always know is // available here. unsigned OffHi = (unsigned)NumBytes >> 10U; - BuildMI(MBB, InsertPt, dl, TII.get(SP::SETHIi), SP::G1).addImm(OffHi); + BuildMI(MBB, MBBI, dl, TII.get(SP::SETHIi), SP::G1).addImm(OffHi); // Emit G1 = G1 + I6 - BuildMI(MBB, InsertPt, dl, TII.get(SP::ORri), SP::G1) + BuildMI(MBB, MBBI, dl, TII.get(SP::ORri), SP::G1) .addReg(SP::G1).addImm(NumBytes & ((1 << 10)-1)); - BuildMI(MBB, InsertPt, dl, TII.get(SP::SAVErr), SP::O6) + BuildMI(MBB, MBBI, dl, TII.get(SP::SAVErr), SP::O6) .addReg(SP::O6).addReg(SP::G1); } } @@ -158,7 +160,7 @@ void SparcRegisterInfo::emitPrologue(MachineFunction &MF) const { void SparcRegisterInfo::emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const { MachineBasicBlock::iterator MBBI = prior(MBB.end()); - DebugLoc dl = DebugLoc::getUnknownLoc(); + DebugLoc dl = MBBI->getDebugLoc(); assert(MBBI->getOpcode() == SP::RETL && "Can only put epilog before 'retl' instruction!"); BuildMI(MBB, MBBI, dl, TII.get(SP::RESTORErr), SP::G0).addReg(SP::G0) |