diff options
Diffstat (limited to 'contrib/llvm/lib/Target/Sparc')
| -rw-r--r-- | contrib/llvm/lib/Target/Sparc/SparcFrameLowering.cpp | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/contrib/llvm/lib/Target/Sparc/SparcFrameLowering.cpp b/contrib/llvm/lib/Target/Sparc/SparcFrameLowering.cpp index 8fa10dc..c0279da 100644 --- a/contrib/llvm/lib/Target/Sparc/SparcFrameLowering.cpp +++ b/contrib/llvm/lib/Target/Sparc/SparcFrameLowering.cpp @@ -190,11 +190,11 @@ static bool LLVM_ATTRIBUTE_UNUSED verifyLeafProcRegUse(MachineRegisterInfo *MRI) { for (unsigned reg = SP::I0; reg <= SP::I7; ++reg) - if (!MRI->reg_nodbg_empty(reg)) + if (MRI->isPhysRegUsed(reg)) return false; for (unsigned reg = SP::L0; reg <= SP::L7; ++reg) - if (!MRI->reg_nodbg_empty(reg)) + if (MRI->isPhysRegUsed(reg)) return false; return true; @@ -206,10 +206,10 @@ bool SparcFrameLowering::isLeafProc(MachineFunction &MF) const MachineRegisterInfo &MRI = MF.getRegInfo(); MachineFrameInfo *MFI = MF.getFrameInfo(); - return !(MFI->hasCalls() // has calls - || !MRI.reg_nodbg_empty(SP::L0) // Too many registers needed - || !MRI.reg_nodbg_empty(SP::O6) // %SP is used - || hasFP(MF)); // need %FP + return !(MFI->hasCalls() // has calls + || MRI.isPhysRegUsed(SP::L0) // Too many registers needed + || MRI.isPhysRegUsed(SP::O6) // %SP is used + || hasFP(MF)); // need %FP } void SparcFrameLowering::remapRegsForLeafProc(MachineFunction &MF) const { @@ -218,13 +218,16 @@ void SparcFrameLowering::remapRegsForLeafProc(MachineFunction &MF) const { // Remap %i[0-7] to %o[0-7]. for (unsigned reg = SP::I0; reg <= SP::I7; ++reg) { - if (MRI.reg_nodbg_empty(reg)) + if (!MRI.isPhysRegUsed(reg)) continue; unsigned mapped_reg = (reg - SP::I0 + SP::O0); - assert(MRI.reg_nodbg_empty(mapped_reg)); + assert(!MRI.isPhysRegUsed(mapped_reg)); // Replace I register with O register. MRI.replaceRegWith(reg, mapped_reg); + + // Mark the reg unused. + MRI.setPhysRegUnused(reg); } // Rewrite MBB's Live-ins. |
