From b719437325681bec89572cccb53916b7a17f1e60 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Mon, 15 Nov 2010 06:12:22 +0000 Subject: [PATCH] add a fixup for conditional branches, giving us output like this: beq cr0, LBB0_4 ; encoding: [0x41,0x82,A,0bAAAAAA00] ; fixup A - offset: 0, value: LBB0_4, kind: fixup_ppc_brcond14 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119126 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/PowerPC/PPCFixupKinds.h | 7 ++++++- lib/Target/PowerPC/PPCMCCodeEmitter.cpp | 12 +++++------- 2 files changed, 11 insertions(+), 8 deletions(-) diff --git a/lib/Target/PowerPC/PPCFixupKinds.h b/lib/Target/PowerPC/PPCFixupKinds.h index d1d44f54ff5..fcf3dbaa6cd 100644 --- a/lib/Target/PowerPC/PPCFixupKinds.h +++ b/lib/Target/PowerPC/PPCFixupKinds.h @@ -15,9 +15,14 @@ namespace llvm { namespace PPC { enum Fixups { - // fixup_ppc_br24 - 24-bit PC relative relocation for calls like 'bl'. + // fixup_ppc_br24 - 24-bit PC relative relocation for direct branches like 'b' + // and 'bl'. fixup_ppc_br24 = FirstTargetFixupKind, + /// fixup_ppc_brcond14 - 14-bit PC relative relocation for conditional + /// branches. + fixup_ppc_brcond14, + // Marker LastTargetFixupKind, NumTargetFixupKinds = LastTargetFixupKind - FirstTargetFixupKind diff --git a/lib/Target/PowerPC/PPCMCCodeEmitter.cpp b/lib/Target/PowerPC/PPCMCCodeEmitter.cpp index 29cc2cabcbc..53183127c27 100644 --- a/lib/Target/PowerPC/PPCMCCodeEmitter.cpp +++ b/lib/Target/PowerPC/PPCMCCodeEmitter.cpp @@ -43,11 +43,8 @@ public: const MCFixupKindInfo &getFixupKindInfo(MCFixupKind Kind) const { const static MCFixupKindInfo Infos[] = { // name offset bits flags - { "fixup_ppc_br24", 6, 24, MCFixupKindInfo::FKF_IsPCRel } -#if 0 - { "fixup_arm_vfp_pcrel_12", 3, 8, MCFixupKindInfo::FKF_IsPCRel }, - { "fixup_arm_branch", 1, 24, MCFixupKindInfo::FKF_IsPCRel }, -#endif + { "fixup_ppc_br24", 6, 24, MCFixupKindInfo::FKF_IsPCRel }, + { "fixup_ppc_brcond14", 16, 14, MCFixupKindInfo::FKF_IsPCRel } }; if (Kind < FirstTargetFixupKind) @@ -115,8 +112,9 @@ unsigned PPCMCCodeEmitter::getCondBrEncoding(const MCInst &MI, unsigned OpNo, 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_brcond14)); return 0; }