Commit Graph

6 Commits

Author SHA1 Message Date
serge-sans-paille 7b319df29b Revert "Use the default seed value for djb hash for StringMap"
This reverts commit d84440ec91.

It breaks (at least) lldb and lld validation

https://lab.llvm.org/buildbot/#/builders/68/builds/7837
https://lab.llvm.org/buildbot/#/builders/36/builds/5495
2021-03-01 14:00:39 +01:00
serge-sans-paille d84440ec91 Use the default seed value for djb hash for StringMap
See original comment in 560ce2c70f
Baiscally the default seed value results in less collision, but changes the
iteration order, which matters for a few test cases.

Differential Revision: https://reviews.llvm.org/D97396
2021-03-01 13:21:27 +01:00
Ted Woodward 7683a084de Remove lit feature object-emission
Summary: The lit feature object-emission was added because Hexagon did not support the integrated assembler, so some tests needed to be turned off with a Hexagon target. Hexagon now supports the integrated assembler, so this feature can be removed.

Reviewers: bcain, kparzysz, jverma, whitequark, JDevlieghere

Reviewed By: JDevlieghere

Subscribers: mehdi_amini, hiraditya, steven_wu, dexonsmith, arphaman, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D73568
2020-02-10 15:57:56 -06:00
Pavel Labath 6088c23431 Re-commit r329179 after fixing build&test issues
- MSVC was not OK with a static_assert referencing a non-static member
  variable, even though it was just in a sizeof(expression). I move the
  assert into the emit function, where it is probably more useful.
- Tests were failing in builds which did not have the X86 target
  configured. Since this functionality is not target-specific, I have
  removed the target specifiers from the .ll files.

llvm-svn: 329201
2018-04-04 14:42:14 +00:00
Nico Weber 55fcd07d25 Revert r329179 (and follow-up unsuccessful fix attempts 329184, 329186); it doesn't build.
llvm-svn: 329190
2018-04-04 13:06:22 +00:00
Pavel Labath 69baab103a [CodeGen] Generate DWARF v5 Accelerator Tables
Summary:
This patch adds a DwarfAccelTableEmitter class, which generates an
accelerator table, as specified in DWARF v5 standard. At the moment it
only generates a DIE offset column and (if we are indexing more than one
compile unit) a CU column.

Indexing type units is not currently supported, as we don't even have
the ability to generate DWARF v5-compatible compile units.

The implementation is not data-source agnostic like the one generating
apple tables. This was not necessary as we currently only have one user
of this code, and without a second user it was not obvious to me how to
best abstract this. (The difference between these tables and the apple
ones is that they need a lot more metadata about the debug info they are
indexing).

The generation is triggered by the --accel-tables argument, which
supersedes the --dwarf-accel-tables arg -- the latter was a simple
on-off switch, but not we can choose between two kinds of accelerator
tables we can generate.

This is tested by parsing the generated tables with llvm-dwarfdump and
the DWARFVerifier, and I've also checked that GNU readelf is able to
make sense of the tables.

Differential Revision: https://reviews.llvm.org/D43286

llvm-svn: 329179
2018-04-04 12:28:20 +00:00