diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2017-12-02 12:46:23 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2017-12-02 12:46:23 +0000 |
| commit | edad5bcb76bf472a1487c0f3dd94a5914213a647 (patch) | |
| tree | 63c3f98843d0debbfd390005cf8e05250cd3fe28 /lib/Target/AVR/AVRInstrInfo.cpp | |
| parent | 0bc1bd0d3931803dc6a26d35758f93527359bcdb (diff) | |
Vendor import of llvm release_50 branch r319231:vendor/llvm/llvm-release_50-r319231
Notes
svn path=/vendor/llvm/dist/; revision=326460
svn path=/vendor/llvm/llvm-release_50-r319231/; revision=326461; tag=vendor/llvm/llvm-release_50-r319231
Diffstat (limited to 'lib/Target/AVR/AVRInstrInfo.cpp')
| -rw-r--r-- | lib/Target/AVR/AVRInstrInfo.cpp | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/lib/Target/AVR/AVRInstrInfo.cpp b/lib/Target/AVR/AVRInstrInfo.cpp index 744aa723c416..1a89a13693e1 100644 --- a/lib/Target/AVR/AVRInstrInfo.cpp +++ b/lib/Target/AVR/AVRInstrInfo.cpp @@ -537,8 +537,7 @@ bool AVRInstrInfo::isBranchOffsetInRange(unsigned BranchOp, llvm_unreachable("unexpected opcode!"); case AVR::JMPk: case AVR::CALLk: - assert(BrOffset >= 0 && "offset must be absolute address"); - return isUIntN(16, BrOffset); + return true; case AVR::RCALLk: case AVR::RJMPk: return isIntN(13, BrOffset); @@ -556,5 +555,20 @@ bool AVRInstrInfo::isBranchOffsetInRange(unsigned BranchOp, } } +unsigned AVRInstrInfo::insertIndirectBranch(MachineBasicBlock &MBB, + MachineBasicBlock &NewDestBB, + const DebugLoc &DL, + int64_t BrOffset, + RegScavenger *RS) const { + // This method inserts a *direct* branch (JMP), despite its name. + // LLVM calls this method to fixup unconditional branches; it never calls + // insertBranch or some hypothetical "insertDirectBranch". + // See lib/CodeGen/RegisterRelaxation.cpp for details. + // We end up here when a jump is too long for a RJMP instruction. + auto &MI = *BuildMI(&MBB, DL, get(AVR::JMPk)).addMBB(&NewDestBB); + + return getInstSizeInBytes(MI); +} + } // end of namespace llvm |