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cf7e846d11
This patch implements PR31013 by introducing a
DIGlobalVariableExpression that holds a pair of DIGlobalVariable and
DIExpression.
Currently, DIGlobalVariables holds a DIExpression. This is not the
best way to model this:
(1) The DIGlobalVariable should describe the source level variable,
not how to get to its location.
(2) It makes it unsafe/hard to update the expressions when we call
replaceExpression on the DIGLobalVariable.
(3) It makes it impossible to represent a global variable that is in
more than one location (e.g., a variable with multiple
DW_OP_LLVM_fragment-s). We also moved away from attaching the
DIExpression to DILocalVariable for the same reasons.
This reapplies r289902 with additional testcase upgrades and a change
to the Bitcode record for DIGlobalVariable, that makes upgrading the
old format unambiguous also for variables without DIExpressions.
<rdar://problem/29250149>
https://llvm.org/bugs/show_bug.cgi?id=31013
Differential Revision: https://reviews.llvm.org/D26769
llvm-svn: 290153
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| .. | ||
| AArch64 | ||
| ARM | ||
| Hexagon | ||
| Inputs | ||
| X86 | ||
| coff-file.test | ||
| coff-import-library.test | ||
| coff-large-bss.test | ||
| coff-many-relocs.test | ||
| coff-non-null-terminated-file.test | ||
| coff-private-headers.test | ||
| common-symbol-elf.test | ||
| eh_frame_zero_cie.test | ||
| eh_frame-arm64.test | ||
| eh_frame-mipsel.test | ||
| hex-relocation-addr.test | ||
| invalid-input.test | ||
| macho-bad-ordinal.test | ||
| macho-bind2.test | ||
| macho-bind.test | ||
| macho-compact-unwind-i386.test | ||
| macho-compact-unwind-x86_64.test | ||
| macho-exports-trie.test | ||
| macho-lazy-bind.test | ||
| macho-LLVM-bundle.test | ||
| macho-objc-meta-data.test | ||
| macho-rebase.test | ||
| macho-sections.test | ||
| macho-unwind-info-arm64.test | ||
| macho-unwind-info-no-relocs.test | ||
| macho-unwind-info-x86_64.test | ||
| macho-weak-bind.test | ||
| malformed-archives.test | ||
| malformed-macho.test | ||
| malformed-unwind-x86_64.test | ||
| proc-specific-section-elf.test | ||
| section-filter.test | ||
| wasm.txt | ||
| win64-unwind-data.test | ||