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| author | Stephen Tozer <stephen.tozer@sony.com> | 2022-08-24 14:54:33 +0100 |
|---|---|---|
| committer | Stephen Tozer <stephen.tozer@sony.com> | 2022-08-24 15:24:32 +0100 |
| commit | 58d104b352a65bec3fb7a8fd23bf2d408b4c76f7 (patch) | |
| tree | 04a9412f0a8f5075d46f675d77c57d29b9f66249 /llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp | |
| parent | 2616e00949b18f5bd1223cb6054f7ad8ffa7e9c8 (diff) | |
| download | llvm-58d104b352a65bec3fb7a8fd23bf2d408b4c76f7.zip llvm-58d104b352a65bec3fb7a8fd23bf2d408b4c76f7.tar.gz llvm-58d104b352a65bec3fb7a8fd23bf2d408b4c76f7.tar.bz2 | |
Revert "[DebugInfo] Extend the InstrRef LDV to support DbgValues with many Ops"
Reverting due to reported errors when running Linux kernel builds with
KMSAN -gdwarf-4.
This reverts commit 2cb9e1ac422f46de0ab728c6c9d50ebafbfe372a.
Diffstat (limited to 'llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp b/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp index 27a5a30..9aea790 100644 --- a/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp +++ b/llvm/lib/CodeGen/LiveDebugValues/InstrRefBasedImpl.cpp @@ -1341,6 +1341,19 @@ bool InstrRefBasedLDV::transferDebugValue(const MachineInstr &MI) { if (Scope == nullptr) return true; // handled it; by doing nothing + // For now, ignore DBG_VALUE_LISTs when extending ranges. Allow it to + // contribute to locations in this block, but don't propagate further. + // Interpret it like a DBG_VALUE $noreg. + if (MI.isDebugValueList()) { + SmallVector<DbgOpID> EmptyDebugOps; + SmallVector<ResolvedDbgOp> EmptyResolvedDebugOps; + if (VTracker) + VTracker->defVar(MI, Properties, EmptyDebugOps); + if (TTracker) + TTracker->redefVar(MI, Properties, EmptyResolvedDebugOps); + return true; + } + // MLocTracker needs to know that this register is read, even if it's only // read by a debug inst. for (const MachineOperand &MO : MI.debug_operands()) |