Commit Graph

5 Commits

Author SHA1 Message Date
Haojian Wu 973bd3e974 Fix the "git modified" issue on the preserve-comments-crlf.s.
Summary:
 rL371473 corrected the line ending (to crlf) in preserve-comments-crlf.s, but it causes a wired issue on git
 repository (I ran git pull today, it showed a local change of that file even I did not change anything).

Reviewers: gribozavr

Reviewed By: gribozavr

Subscribers: llvm-commits, cfe-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D67391

llvm-svn: 371513
2019-09-10 12:17:49 +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: , name: "foo", file: , 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 )

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
Zhen Cao 4cb299407e [MC] Fix regression tests on Windows when git “core.autocrlf” is set to true.
Differential Revision: https://reviews.llvm.org/D39737

This is the second attempt to commit this. The test was broken on Linux in the first attempt.

llvm-svn: 318560
2017-11-17 21:59:43 +00:00
Rafael Espindola e827024134 Revert "[MC] Fix regression tests on Windows when git “core.autocrlf” is set to true."
This reverts commit r318528.

MC/AsmParser/preserve-comments-crlf.s fails on linux.

llvm-svn: 318533
2017-11-17 17:31:20 +00:00
Zhen Cao ac358137f7 [MC] Fix regression tests on Windows when git “core.autocrlf” is set to true.
Differential Revision: https://reviews.llvm.org/D39737

llvm-svn: 318528
2017-11-17 16:17:56 +00:00