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...ust use DW_OP_regN, which is >> implicitly a value location. >> 6. Teach all passes that spill virtual registers used by DBG_VALUE to >> remove DW_OP_stack_value from the DIExpression, or add DW_OP_deref as >> appropriate. >> >> This should be equivalent to DW_OP_LLVM_memory, and more inline with >> DWARF location expression semantics, but it has a large migration cost. >> >> --- >> >> I think part of the reason I wanted to move in the DW_OP_LLVM_memory >> direction is that I originally wanted to add a memory offset operand to it. &g...

...plicitly a value location. >>>> 6. Teach all passes that spill virtual registers used by DBG_VALUE to >>>> remove DW_OP_stack_value from the DIExpression, or add DW_OP_deref as >>>> appropriate. >>>> >>>> This should be equivalent to DW_OP_LLVM_memory, and more inline with >>>> DWARF location expression semantics, but it has a large migration cost. >>>> >>>> --- >>>> >>>> I think part of the reason I wanted to move in the DW_OP_LLVM_memory >>>> direction is that I originally...

...or DBG_VALUEs with physical register operands. They just use DW_OP_regN, which is implicitly a value location. 6. Teach all passes that spill virtual registers used by DBG_VALUE to remove DW_OP_stack_value from the DIExpression, or add DW_OP_deref as appropriate. This should be equivalent to DW_OP_LLVM_memory, and more inline with DWARF location expression semantics, but it has a large migration cost. --- I think part of the reason I wanted to move in the DW_OP_LLVM_memory direction is that I originally wanted to add a memory offset operand to it. Our actual use cases for complex DWARF expressions typ...