diff options
| author | Chris Lattner <sabre@nondot.org> | 2010-11-15 06:33:39 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-11-15 06:33:39 +0000 |
| commit | 85cf7d737dd26e984974e072d28225bd00c625c2 (patch) | |
| tree | ed57b511a6142d33fc75284afba80626fe7c2d6c /lib/Target/PowerPC/PPCMCCodeEmitter.cpp | |
| parent | b719437325681bec89572cccb53916b7a17f1e60 (diff) | |
implement the start of support for lo16 and ha16, allowing us to get stuff like:
lis r4, ha16(__ZL4init) ; encoding: [0x3c,0x80,A,A]
; fixup A - offset: 0, value: ha16(__ZL4init), kind: fixup_ppc_ha16
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119127 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/PPCMCCodeEmitter.cpp')
| -rw-r--r-- | lib/Target/PowerPC/PPCMCCodeEmitter.cpp | 46 |
1 files changed, 43 insertions, 3 deletions
diff --git a/lib/Target/PowerPC/PPCMCCodeEmitter.cpp b/lib/Target/PowerPC/PPCMCCodeEmitter.cpp index 53183127c2..644f46f21d 100644 --- a/lib/Target/PowerPC/PPCMCCodeEmitter.cpp +++ b/lib/Target/PowerPC/PPCMCCodeEmitter.cpp @@ -44,7 +44,10 @@ public: const static MCFixupKindInfo Infos[] = { // name offset bits flags { "fixup_ppc_br24", 6, 24, MCFixupKindInfo::FKF_IsPCRel }, - { "fixup_ppc_brcond14", 16, 14, MCFixupKindInfo::FKF_IsPCRel } + { "fixup_ppc_brcond14", 16, 14, MCFixupKindInfo::FKF_IsPCRel }, + { "fixup_ppc_lo16", 16, 16, 0 }, + { "fixup_ppc_ha16", 16, 16, 0 }, + { "fixup_ppc_lo14", 16, 14, 0 } }; if (Kind < FirstTargetFixupKind) @@ -57,10 +60,14 @@ public: unsigned getDirectBrEncoding(const MCInst &MI, unsigned OpNo, SmallVectorImpl<MCFixup> &Fixups) const; - unsigned getCondBrEncoding(const MCInst &MI, unsigned OpNo, SmallVectorImpl<MCFixup> &Fixups) const; - + unsigned getHA16Encoding(const MCInst &MI, unsigned OpNo, + SmallVectorImpl<MCFixup> &Fixups) const; + unsigned getLO16Encoding(const MCInst &MI, unsigned OpNo, + SmallVectorImpl<MCFixup> &Fixups) const; + unsigned getLO14Encoding(const MCInst &MI, unsigned OpNo, + SmallVectorImpl<MCFixup> &Fixups) const; unsigned get_crbitm_encoding(const MCInst &MI, unsigned OpNo, SmallVectorImpl<MCFixup> &Fixups) const; @@ -118,6 +125,39 @@ unsigned PPCMCCodeEmitter::getCondBrEncoding(const MCInst &MI, unsigned OpNo, return 0; } +unsigned PPCMCCodeEmitter::getHA16Encoding(const MCInst &MI, unsigned OpNo, + SmallVectorImpl<MCFixup> &Fixups) const { + const MCOperand &MO = MI.getOperand(OpNo); + if (MO.isReg() || MO.isImm()) return getMachineOpValue(MI, MO, Fixups); + + // Add a fixup for the branch target. + Fixups.push_back(MCFixup::Create(0, MO.getExpr(), + (MCFixupKind)PPC::fixup_ppc_ha16)); + return 0; +} + +unsigned PPCMCCodeEmitter::getLO16Encoding(const MCInst &MI, unsigned OpNo, + SmallVectorImpl<MCFixup> &Fixups) const { + const MCOperand &MO = MI.getOperand(OpNo); + if (MO.isReg() || MO.isImm()) return getMachineOpValue(MI, MO, Fixups); + + // Add a fixup for the branch target. + Fixups.push_back(MCFixup::Create(0, MO.getExpr(), + (MCFixupKind)PPC::fixup_ppc_lo16)); + return 0; +} + +unsigned PPCMCCodeEmitter::getLO14Encoding(const MCInst &MI, unsigned OpNo, + SmallVectorImpl<MCFixup> &Fixups) const { + const MCOperand &MO = MI.getOperand(OpNo); + if (MO.isReg() || MO.isImm()) return getMachineOpValue(MI, MO, Fixups); + + // Add a fixup for the branch target. + Fixups.push_back(MCFixup::Create(0, MO.getExpr(), + (MCFixupKind)PPC::fixup_ppc_lo14)); + return 0; +} + unsigned PPCMCCodeEmitter:: get_crbitm_encoding(const MCInst &MI, unsigned OpNo, |