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| author |   patrick <patrick@openbsd.org> | 2017-10-04 20:27:34 +0000 |
|---|---|---|
| committer | patrick <patrick@openbsd.org> | 2017-10-04 20:27:34 +0000 |
| commit | 31eb748944903b7f4f38afda9851951ca9dfc1ae (patch) | |
| tree | 9b95b6ea45d0874d75eb05b90c0840e191416439 /gnu/llvm/lib/CodeGen/MachineLoopInfo.cpp | |
| parent | Don't try to handle IPv4-compatible IPv6 addresses (diff) | |
| download | wireguard-openbsd-31eb748944903b7f4f38afda9851951ca9dfc1ae.tar.xz wireguard-openbsd-31eb748944903b7f4f38afda9851951ca9dfc1ae.zip | |
Import LLVM 5.0.0 release including clang, lld and lldb.
Diffstat (limited to 'gnu/llvm/lib/CodeGen/MachineLoopInfo.cpp')
| -rw-r--r-- | gnu/llvm/lib/CodeGen/MachineLoopInfo.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gnu/llvm/lib/CodeGen/MachineLoopInfo.cpp b/gnu/llvm/lib/CodeGen/MachineLoopInfo.cpp index fdeaf7b7116..a9aa1d954e7 100644 --- a/gnu/llvm/lib/CodeGen/MachineLoopInfo.cpp +++ b/gnu/llvm/lib/CodeGen/MachineLoopInfo.cpp @@ -87,6 +87,22 @@ MachineBasicBlock *MachineLoop::findLoopControlBlock() { return nullptr; } +DebugLoc MachineLoop::getStartLoc() const { + // Try the pre-header first. + if (MachineBasicBlock *PHeadMBB = getLoopPreheader()) + if (const BasicBlock *PHeadBB = PHeadMBB->getBasicBlock()) + if (DebugLoc DL = PHeadBB->getTerminator()->getDebugLoc()) + return DL; + + // If we have no pre-header or there are no instructions with debug + // info in it, try the header. + if (MachineBasicBlock *HeadMBB = getHeader()) + if (const BasicBlock *HeadBB = HeadMBB->getBasicBlock()) + return HeadBB->getTerminator()->getDebugLoc(); + + return DebugLoc(); +} + MachineBasicBlock * MachineLoopInfo::findLoopPreheader(MachineLoop *L, bool SpeculativePreheader) const { |