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cc6ad63452
Introduce a DW_OP_LLVM_convert Dwarf expression pseudo op that allows for a convenient way to perform type conversions on the Dwarf expression stack. As an additional bonus it paves the way for using other Dwarf v5 ops that need to reference a base_type. The new DW_OP_LLVM_convert is used from lib/Transforms/Utils/Local.cpp to perform sext/zext on debug values but mainly the patch is about preparing terrain for adding other Dwarf v5 ops that need to reference a base_type. For Dwarf v5 the op maps to DW_OP_convert and for earlier versions a complex shift & mask pattern is generated to emulate sext/zext. This is a recommit of r356442 with trivial fixes for the failing tests. Differential Revision: https://reviews.llvm.org/D56587 llvm-svn: 356451
48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
//===- llvm/CodeGen/DIEValue.def - DIEValue types ---------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Macros for running through all types of DIEValue.
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//
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//===----------------------------------------------------------------------===//
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#if !(defined HANDLE_DIEVALUE || defined HANDLE_DIEVALUE_SMALL || \
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defined HANDLE_DIEVALUE_LARGE)
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#error "Missing macro definition of HANDLE_DIEVALUE"
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#endif
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// Handler for all values.
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#ifndef HANDLE_DIEVALUE
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#define HANDLE_DIEVALUE(T)
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#endif
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// Handler for small values.
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#ifndef HANDLE_DIEVALUE_SMALL
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#define HANDLE_DIEVALUE_SMALL(T) HANDLE_DIEVALUE(T)
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#endif
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// Handler for large values.
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#ifndef HANDLE_DIEVALUE_LARGE
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#define HANDLE_DIEVALUE_LARGE(T) HANDLE_DIEVALUE(T)
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#endif
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HANDLE_DIEVALUE_SMALL(Integer)
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HANDLE_DIEVALUE_SMALL(String)
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HANDLE_DIEVALUE_SMALL(Expr)
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HANDLE_DIEVALUE_SMALL(Label)
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HANDLE_DIEVALUE_LARGE(BaseTypeRef)
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HANDLE_DIEVALUE_LARGE(Delta)
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HANDLE_DIEVALUE_SMALL(Entry)
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HANDLE_DIEVALUE_LARGE(Block)
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HANDLE_DIEVALUE_LARGE(Loc)
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HANDLE_DIEVALUE_SMALL(LocList)
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HANDLE_DIEVALUE_LARGE(InlineString)
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#undef HANDLE_DIEVALUE
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#undef HANDLE_DIEVALUE_SMALL
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#undef HANDLE_DIEVALUE_LARGE
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