1 //===-- VEFrameLowering.cpp - VE Frame Information ------------------------===//
9 // This file contains the VE implementation of TargetFrameLowering class.
11 // On VE, stack frames are structured as follows:
33 // VE doesn't use on demand stack allocation, so user code generated by LLVM
34 // needs to call VEOS to allocate stack frame.  VE's ABI want to reduce the
89 // In addition, VE ABI defines RSA frame, return address, and frame pointer
108 // NOTE: This description is based on VE ABI and description in
152     BuildMI(MBB, MBBI, DL, TII.get(VE::STrii))  in emitPrologueInsns()
153         .addReg(VE::SX11)  in emitPrologueInsns()
156         .addReg(VE::SX9);  in emitPrologueInsns()
157     BuildMI(MBB, MBBI, DL, TII.get(VE::STrii))  in emitPrologueInsns()
158         .addReg(VE::SX11)  in emitPrologueInsns()
161         .addReg(VE::SX10);  in emitPrologueInsns()
164     BuildMI(MBB, MBBI, DL, TII.get(VE::STrii))  in emitPrologueInsns()
165         .addReg(VE::SX11)  in emitPrologueInsns()
168         .addReg(VE::SX15);  in emitPrologueInsns()
169     BuildMI(MBB, MBBI, DL, TII.get(VE::STrii))  in emitPrologueInsns()
170         .addReg(VE::SX11)  in emitPrologueInsns()
173         .addReg(VE::SX16);  in emitPrologueInsns()
176     BuildMI(MBB, MBBI, DL, TII.get(VE::STrii))  in emitPrologueInsns()
177         .addReg(VE::SX11)  in emitPrologueInsns()
180         .addReg(VE::SX17);  in emitPrologueInsns()
200     BuildMI(MBB, MBBI, DL, TII.get(VE::LDrii), VE::SX17)  in emitEpilogueInsns()
201         .addReg(VE::SX11)  in emitEpilogueInsns()
205     BuildMI(MBB, MBBI, DL, TII.get(VE::LDrii), VE::SX16)  in emitEpilogueInsns()
206         .addReg(VE::SX11)  in emitEpilogueInsns()
209     BuildMI(MBB, MBBI, DL, TII.get(VE::LDrii), VE::SX15)  in emitEpilogueInsns()
210         .addReg(VE::SX11)  in emitEpilogueInsns()
215     BuildMI(MBB, MBBI, DL, TII.get(VE::LDrii), VE::SX10)  in emitEpilogueInsns()
216         .addReg(VE::SX11)  in emitEpilogueInsns()
219     BuildMI(MBB, MBBI, DL, TII.get(VE::LDrii), VE::SX9)  in emitEpilogueInsns()
220         .addReg(VE::SX11)  in emitEpilogueInsns()
238     BuildMI(MBB, MBBI, DL, TII.get(VE::ADDSLri), VE::SX11)  in emitSPAdjustment()
239         .addReg(VE::SX11)  in emitSPAdjustment()
243     BuildMI(MBB, MBBI, DL, TII.get(VE::LEArii), VE::SX11)  in emitSPAdjustment()
244         .addReg(VE::SX11)  in emitSPAdjustment()
253     BuildMI(MBB, MBBI, DL, TII.get(VE::LEAzii), VE::SX13)  in emitSPAdjustment()
257     BuildMI(MBB, MBBI, DL, TII.get(VE::ANDrm), VE::SX13)  in emitSPAdjustment()
258         .addReg(VE::SX13)  in emitSPAdjustment()
260     BuildMI(MBB, MBBI, DL, TII.get(VE::LEASLrri), VE::SX11)  in emitSPAdjustment()
261         .addReg(VE::SX11)  in emitSPAdjustment()
262         .addReg(VE::SX13)  in emitSPAdjustment()
268     BuildMI(MBB, MBBI, DL, TII.get(VE::ANDrm), VE::SX11)  in emitSPAdjustment()
269         .addReg(VE::SX11)  in emitSPAdjustment()
304   BuildMI(MBB, MBBI, DL, TII.get(VE::EXTEND_STACK));  in emitSPExtend()
305   BuildMI(MBB, MBBI, DL, TII.get(VE::EXTEND_STACK_GUARD));  in emitSPExtend()
333   // VE ABI requires a reserved area at the top of stack as described in  in emitPrologue()
354     BuildMI(MBB, MBBI, DL, TII.get(VE::ORri), VE::SX9)  in emitPrologue()
355         .addReg(VE::SX11)  in emitPrologue()
367     BuildMI(MBB, MBBI, DL, TII.get(VE::ORri), VE::SX17)  in emitPrologue()
368         .addReg(VE::SX11)  in emitPrologue()
383     if (MI.getOpcode() == VE::ADJCALLSTACKDOWN)  in eliminateCallFramePseudoInstr()
406     BuildMI(MBB, MBBI, DL, TII.get(VE::ORri), VE::SX11)  in emitEpilogue()
407         .addReg(VE::SX9)  in emitEpilogue()
455     FrameReg = VE::SX11; // %sp  in getFrameIndexReference()
463       FrameReg = VE::SX17; // %bp  in getFrameIndexReference()
465       FrameReg = VE::SX11; // %sp  in getFrameIndexReference()
480          && !MRI.isPhysRegUsed(VE::SX18) // Registers within limits  in isLeafProc()
482          && !MRI.isPhysRegUsed(VE::SX11) // %sp un-used  in isLeafProc()