Jeremy Morse adf33c8470 [DebugInfo][InstrRef] Correctly update DBG_PHIs during instr scheduling ... Avoid several crashes when DBG_INSTR_REF and DBG_PHI instructions are fed to the instruction scheduler. DBG_INSTR_REFs should be treated like DBG_LABELs, and just ignored for the purpose of scheduling [0]. DBG_PHIs however behave much more like DBG_VALUEs: they refer to register operands, and if some register defs get shuffled around during instruction scheduling, there's a risk that the debug instr will refer to the wrong value. There's already a facility for updating DBG_VALUEs to reflect this; add DBG_PHI to the list of instructions that it will update. [0] Suboptimal, but it's what instr scheduling does right now. Differential Revision: https://reviews.llvm.org/D106663		2021-07-27 15:12:46 +01:00
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llvm	[DebugInfo][InstrRef] Correctly update DBG_PHIs during instr scheduling	2021-07-27 15:12:46 +01:00
llvm-c	[IR] Rename comdat noduplicates to comdat nodeduplicate	2021-07-20 12:47:10 -07:00