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10 Commits

Author SHA1 Message Date
Justin Bogner d05345304c Specify REQUIRES: default_triple in two debuginfo tests 
These were failing when specifying LLVM_DEFAULT_TARGET_TRIPLE=''

llvm-svn: 346185
 2018-11-06 00:16:32 +00:00
Shiva Chen 2c864551df [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 
In order to set breakpoints on labels and list source code around
labels, we need collect debug information for labels, i.e., label
name, the function label belong, line number in the file, and the
address label located. In order to keep these information in LLVM
IR and to allow backend to generate debug information correctly.
We create a new kind of metadata for labels, DILabel. The format
of DILabel is

!DILabel(scope: !1, name: "foo", file: !2, line: 3)

We hope to keep debug information as much as possible even the
code is optimized. So, we create a new kind of intrinsic for label
metadata to avoid the metadata is eliminated with basic block.
The intrinsic will keep existing if we keep it from optimized out.
The format of the intrinsic is

llvm.dbg.label(metadata !1)

It has only one argument, that is the DILabel metadata. The
intrinsic will follow the label immediately. Backend could get the
label metadata through the intrinsic's parameter.

We also create DIBuilder API for labels to be used by Frontend.
Frontend could use createLabel() to allocate DILabel objects, and use
insertLabel() to insert llvm.dbg.label intrinsic in LLVM IR.

Differential Revision: https://reviews.llvm.org/D45024

Patch by Hsiangkai Wang.

llvm-svn: 331841
 2018-05-09 02:40:45 +00:00
Eugene Zemtsov ccf30835e1 Disable test debuglineinfo-path on powerpc 
llvm-svn: 327472
 2018-03-14 02:10:07 +00:00
Eugene Zemtsov c6d8fcb168 grep for global functions only 
llvm-svn: 327469
 2018-03-14 01:07:18 +00:00
Eugene Zemtsov e2d3ce2339 Add extra output/check to debug clang-ppc64be-linux test failure 
llvm-svn: 327466
 2018-03-14 00:15:16 +00:00
Eugene Zemtsov b9d2908cd3 Disable optimizations in debuglineinfo-path test 
llvm-svn: 327458
 2018-03-13 22:48:39 +00:00
Eugene Zemtsov f69d07e788 Remove explicit triple and data layout from the test 
llvm-svn: 327449
 2018-03-13 21:10:15 +00:00
Eugene Zemtsov d6a1ca761a Fix debuglineinfo-path.ll 
This fix is based on an assumption that some build bots are missing 'echo
-n'

llvm-svn: 327443
 2018-03-13 20:06:33 +00:00
Eugene Zemtsov 27c1afbb0b Temporary disable debuglineinfo-path.ll to fix build 
llvm-svn: 327441
 2018-03-13 19:48:31 +00:00
Eugene Zemtsov 82d60d6b29 Handle mixed-OS paths in DWARF reader 
Make sure that DWARF line information generated by Windows can be properly read by Posix OS and vice versa.

Differential Revision: https://reviews.llvm.org/D44290

llvm-svn: 327430
 2018-03-13 17:54:29 +00:00