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7b30370e5b
[this re-applies c0176916a4
with the correct commit message and phabricator link]
This addresses point 1 of PR44213.
https://bugs.llvm.org/show_bug.cgi?id=44213
The DW_AT_LLVM_sysroot attribute is used for Clang module debug info,
to allow LLDB to import a Clang module from source. Currently it is
part of each DW_TAG_module, however, it is the same for all modules in
a compile unit. It is more efficient and less ambiguous to store it
once in the DW_TAG_compile_unit.
This should have no effect on DWARF consumers other than LLDB.
Differential Revision: https://reviews.llvm.org/D71732
16 lines
599 B
C
16 lines
599 B
C
// RUN: %clang_cc1 -debug-info-kind=limited -triple %itanium_abi_triple \
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// RUN: %s -isysroot /CLANG_SYSROOT -emit-llvm -o - \
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// RUN: -debugger-tuning=lldb | FileCheck %s --check-prefix=LLDB
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// RUN: %clang_cc1 -debug-info-kind=limited -triple %itanium_abi_triple \
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// RUN: %s -isysroot /CLANG_SYSROOT -emit-llvm -o - \
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// RUN: -debugger-tuning=gdb | FileCheck %s --check-prefix=GDB
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void foo() {}
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// The sysroot is an LLDB-tuning-specific attribute.
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// LLDB: distinct !DICompileUnit({{.*}}sysroot: "/CLANG_SYSROOT"
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// GDB: distinct !DICompileUnit(
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// GDB-NOT: sysroot: "/CLANG_SYSROOT"
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