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| author | David Blaikie <dblaikie@gmail.com> | 2014-03-18 00:11:48 +0000 |
|---|---|---|
| committer | David Blaikie <dblaikie@gmail.com> | 2014-03-18 00:11:48 +0000 |
| commit | 2a12c4e5bdff047c10c2e8ca3b70e3cd86a8b858 (patch) | |
| tree | ac6762134947abdd2d010aea1338e81e93e80081 /test | |
| parent | 1881227389bfb5a39bd47ccc84504d8d81031bf5 (diff) | |
| download | llvm-2a12c4e5bdff047c10c2e8ca3b70e3cd86a8b858.tar.gz llvm-2a12c4e5bdff047c10c2e8ca3b70e3cd86a8b858.tar.bz2 llvm-2a12c4e5bdff047c10c2e8ca3b70e3cd86a8b858.tar.xz | |
DebugInfo: Do not rely on the compilation dir (index 0) for files in line tables shared between compilation units
When emitting assembly there's no support for emitting separate line
tables for each compilation unit - so LLVM emits .loc directives
producing a single line table.
Line tables have an implicit directory (index 0) equal to the
compilation directory (DW_AT_comp_dir) of the compilation unit that
references them.
If multiple compilation units (with possibly disparate compilation
directories) reference the same line table, we must avoid relying on
this ambiguous directory.
Achieve this my simply not setting the compilation directory on the line
table when we're in this situation (multiple units while emitting
assembly).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204094 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/DebugInfo/lto-comp-dir.ll | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/test/DebugInfo/lto-comp-dir.ll b/test/DebugInfo/lto-comp-dir.ll index 88d6bf56ae..2637171d6a 100644 --- a/test/DebugInfo/lto-comp-dir.ll +++ b/test/DebugInfo/lto-comp-dir.ll @@ -1,4 +1,5 @@ ; RUN: %llc_dwarf < %s -filetype=obj | llvm-dwarfdump -debug-dump=line - | FileCheck %s +; RUN: %llc_dwarf < %s -filetype=asm | FileCheck --check-prefix=ASM %s ; CHECK: .debug_line contents: ; CHECK-NEXT: Line table prologue: @@ -11,6 +12,9 @@ ; CHECK: file_names[ 1] 0 {{.*}} b.cpp ; CHECK-NOT: file_names +; ASM: .file 1 "/tmp/dbginfo/a/a.cpp" +; ASM: .file 2 "/tmp/dbginfo/b/b.cpp" + ; Generated from the following source compiled to bitcode from within their ; respective directories (with debug info) and linked together with llvm-link |