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NAKAMURA Takumi a3bc043caa Revert r294356, "DebugInfo: Track spilled variables in LiveDebugValues" 
It caused undefined behavior in VarLoc. As far as I investigated,

  - VarLoc::VarLoc() treats negative offset value as InvalidKind.
    Consider the case that (int64_t)MI.getOperand(1).getImm() is negative and whether it satisfies ((uint64_t)Offset < (1ULL << 32)).

  - Comparison operators in VarLoc behave undefined since VarLoc::Loc.Hash is uninitialized in case of InvalidKind.

I guess Offset (in VarLoc) could be made aware of signed, but I am not sure.
So I have reverted it for now.

llvm-svn: 294447
 		2017-02-08 13:49:28 +00:00
..
ARM Fix LLVM's use of DW_OP_bit_piece in DWARF expressions. 2016-12-09 20:43:40 +00:00
X86 Revert r294356, "DebugInfo: Track spilled variables in LiveDebugValues" 2017-02-08 13:49:28 +00:00
lit.local.cfg Recommit LiveDebugValues pass after fixing a couple of minor issues. 2015-12-16 11:09:48 +00:00