Commit Graph

33 Commits

Author SHA1 Message Date
Vedant Kumar d7c9336a84 [profile] Port the runtime to Solaris (retry)
This includes a few nice bits of refactoring (e.g splitting out the
exclusive locking code into a common utility).

Hopefully the Windows support is fixed now.

Patch by Rainer Orth!

Differential Revision: https://reviews.llvm.org/D40944

llvm-svn: 320731
2017-12-14 19:01:04 +00:00
Vedant Kumar e8e8599ade Revert "(HEAD -> master, origin/master, origin/HEAD) [profile] Port the runtime to Solaris"
This reverts commit r320726. It looks like flock isn't available on
Windows:

http://lab.llvm.org:8011/builders/sanitizer-windows/builds/21317/steps/build%20compiler-rt/logs/stdio

llvm-svn: 320728
2017-12-14 18:50:13 +00:00
Vedant Kumar 5b0d5b45a2 [profile] Port the runtime to Solaris
This includes a few nice bits of refactoring (e.g splitting out the
exclusive locking code into a common utility).

Patch by Rainer Orth!

Differential Revision: https://reviews.llvm.org/D40944

llvm-svn: 320726
2017-12-14 18:43:14 +00:00
Alex Lorenz 341317fda4 Revert r312240
The buildbots have shown that -Wstrict-prototypes behaves differently in GCC
and Clang so we should keep it disabled until Clang follows GCC's behaviour

llvm-svn: 312246
2017-08-31 15:51:23 +00:00
Alex Lorenz fbac1ae062 Build LLVM with -Wstrict-prototypes enabled
Clang 5 supports -Wstrict-prototypes. We should use it to catch any C
declarations that declare a non-prototype function.

rdar://33705313

Differential Revision: https://reviews.llvm.org/D36669

llvm-svn: 312240
2017-08-31 13:23:24 +00:00
Xinliang David Li f50cc3ed8a [PGO] Reduce IO in profile dumping with merging
Differential Revision: http://reviews.llvm.org/D34709

llvm-svn: 306561
2017-06-28 16:46:06 +00:00
Xinliang David Li 967669f6c1 [PGO] Refactor file/buffer writer callback interfaces /NFC
Introduces a 'owner' struct to include the overridable write
method and the write context in C.

This allows easy introdution of new member API to help reduce
profile merge time in the follow up patch.

llvm-svn: 306432
2017-06-27 17:28:01 +00:00
Xinliang David Li 5f78d3894b [Profile] Remove unused variable
llvm-svn: 282198
2016-09-22 21:12:40 +00:00
Xinliang David Li 3b2c002c6d [Profile] Implement new API __llvm_profile_dump
The API is intended to be used by user to do fine
grained (per-region) control of profile dumping.

Differential Revision: http://reviews.llvm.org/D23106

llvm-svn: 278092
2016-08-09 04:21:14 +00:00
Xinliang David Li d4c5e27a27 [Profile] move utility interfaces to the right header /NFC
llvm-svn: 276021
2016-07-19 20:31:46 +00:00
Xinliang David Li fe9ecc9d9a Code refactoring: extract path prefix handling code
.. into reusable interfaces. No functional change is expected.

llvm-svn: 275807
2016-07-18 16:16:12 +00:00
Xinliang David Li e2ce2e0020 [profile] in-process merging support part-3
Differential Revision: http://reviews.llvm.org/D21056

llvm-svn: 272227
2016-06-08 23:43:56 +00:00
Xinliang David Li 4e8754d2cb [profile] Static counter allocation for value profiling (part-2)
Differential Revision: http://reviews.llvm.org/D20460

llvm-svn: 270337
2016-05-21 22:55:45 +00:00
Xinliang David Li 5f153e686e [profile] entry eviction support in value profiler
Differential revision: http://reviews.llvm.org/D20408

llvm-svn: 270141
2016-05-19 21:35:34 +00:00
Xinliang David Li 4617aa7827 [profile] Allow max vals per site to be controllable at runtime
llvm-svn: 269993
2016-05-18 22:34:05 +00:00
Xinliang David Li 23a66e45ed [profile] Eliminate dynamic memory allocation for vp writing
This is part-3 of the effort to eliminate dependency on
libc allocator in instr profiler runtime. With this change,
the profile dumper is completely free of malloc/calloc. 
Value profile instr API implementation is the only remaining
piece with calloc dependency.

llvm-svn: 269576
2016-05-14 20:12:42 +00:00
Xinliang David Li 609fae3893 [profile] Eliminate dynamic memory allocation for buffered writer
With this change, dynamic memory allocation is only used
for testing purpose. This change is one of the many steps to
make instrument profiler dynamic allocation free.

llvm-svn: 269453
2016-05-13 18:26:26 +00:00
Xinliang David Li e9a8574da1 Reapply r268840: [profile] Simplify value profile writing
Revert r268864 that reverted 268840 after underlying problem
is fixed for arm bot.

llvm-svn: 268992
2016-05-10 00:17:31 +00:00
Xinliang David Li b5a2b3a429 Fix variable visibility
llvm-svn: 268952
2016-05-09 19:01:19 +00:00
Renato Golin 26642b4035 Revert "[profile] Simplify value profile writing"
This reverts commit r268840, as it breaks Thumb2 self-hosting. There is something
unstable in the profiling for Thumb2 that needs to be sorted out before we continue
implementing these changes to the profiler. See PR27667.

llvm-svn: 268864
2016-05-07 20:07:09 +00:00
Xinliang David Li 4b30c79723 [profile] Simplify value profile writing
With this patch, value data are longer pre-collected
before writing. The code is simplified and requires
less heap space for dumping.

llvm-svn: 268840
2016-05-07 02:50:11 +00:00
Xinliang David Li cf1a8d6912 [PGO] internal API name cleanups (for better consistency)
llvm-svn: 262788
2016-03-06 04:18:13 +00:00
Xinliang David Li dd12e9a8c0 [PGO] Add API for profile merge from buffer
Differential Revision: http://reviews.llvm.org/D17831

llvm-svn: 262644
2016-03-03 18:54:46 +00:00
Xinliang David Li cda3bc2062 [PGO]: Refactor VP data writer
Extract the buffered filer writer code used by value profile 
writer and turn it into common/sharable buffered fileIO 
interfaces. Added a test case for the buffered file writer and
rewrite the VP dumping using the new APIs.

llvm-svn: 256604
2015-12-29 23:54:41 +00:00
Xinliang David Li 54dd683726 [PGO]: Do not update Data->Value field during profile write.
The profile reader no longer depends on this field to be updated and point
to owning func's vp data. The VP data also no longer needs to be allocated
in a contiguous memory space.

Differential Revision:  http://reviews.llvm.org/D15258

llvm-svn: 256543
2015-12-29 07:13:59 +00:00
Xinliang David Li baf55d8266 [PGO] Move buffer write callback to a common file
This is a NFC refactoring enabling code sharing by file writer.

llvm-svn: 256264
2015-12-22 18:57:15 +00:00
Xinliang David Li 497c51cb8a [PGO] Move impl specific decl to InstrProfilingInternal.h (NFC)
llvm-svn: 255290
2015-12-10 19:50:04 +00:00
Xinliang David Li f7185dcccd Fix -Wpointer-sign warning
llvm-svn: 253770
2015-11-21 07:26:46 +00:00
Xinliang David Li 2d5bf07c1d [PGO] Implement a more robust/readable Writer callback interface
(patch suggested by silvas)

With this patch, the IO information is wrapped in struct
ProfDataIOVec, and interface of writerCallback takes a vector
of IOVec and a pointer to writer context pointer.

Differential Revision: http://reviews.llvm.org/D14859

llvm-svn: 253764
2015-11-21 04:16:42 +00:00
Xinliang David Li e8efaeae4d [PGO] Minor cleanups (from review feedback)
1. fix naming problem of file/buffer writer
2. change BufferOrFile to WriterCtx
3. move writer and writerctx together

llvm-svn: 253545
2015-11-19 07:21:47 +00:00
Xinliang David Li 6e55716509 Fix format of previous patch (NFC)
llvm-svn: 253503
2015-11-18 21:11:46 +00:00
Xinliang David Li 1d8d46ae39 [PGO] Refactor File and Buffer API profile writing code
With this change, Buffer API and File API implementations
are unified.

Differential Revision: http://reviews.llvm.org/D14692

llvm-svn: 253500
2015-11-18 21:08:03 +00:00
Justin Bogner 55248db0c9 profile: Add low level versions of profile buffer functions
On Darwin, compiler_rt uses magic linker symbols to find the profile
counters in the __DATA segment.  This is a reasonable method for
normal, hosted, userspace programs.  However programs with custom
memory layouts, such as the kernel, will need to tell compiler_rt
explicitly where to find these sections.

Patch by Lawrence D'Anna. Thanks!

llvm-svn: 223840
2014-12-09 22:07:25 +00:00