Nick Lewycky
d363ff334d
The computation of string length is not that complicated. Fix it, again. :)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130967 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 23:52:18 +00:00
Nick Lewycky
5409a18832
Update the gcov version used slightly, to make it stop causing modern gcov's to
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crash.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130911 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05 02:46:38 +00:00
Nick Lewycky
5e436b3b0e
Create the parent directories to place the .gcda files in if they don't exist.
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That's kinda weird because the .gcno files are supposed to already be there,
but libgcov does this and somehow Google has managed to depend on it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130879 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 22:34:29 +00:00
Nick Lewycky
d006ddc195
Fix crash when not setting GCOV_PREFIX.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130834 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04 03:58:45 +00:00
NAKAMURA Takumi
4f5558e676
runtime/libprofile/PathProfiling.c: Don't use // comment in C source.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130589 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-30 03:53:56 +00:00
Daniel Dunbar
8ddf6f2952
win32: Include DataTypes.h instead of stdint.h to try and fix a Win32 build
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issue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130530 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-29 18:58:57 +00:00
Daniel Dunbar
c69c4a839f
Cleanup some DOS newlines.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130529 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-29 18:58:55 +00:00
Francois Pichet
b89e699b74
Unbreak the MSVC build:
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- unistd.h doesn't exist with MSVC
- inline must be __inline in Microsoft C
- atexit cannot take a function declared as void f(), must be void f(void).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130490 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-29 08:56:07 +00:00
Nick Lewycky
bcffb1fbb8
Rename profile_rt.so to libprofile_rt.so under configure+make (it already was
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under cmake).
Add libprofile_rt.a so that we can tell clang to link against it in --coverage
mode. Also turn it on by default in cmake builds.
Oscar, this touches a change you made for EXCLUDE_FROM_ALL support -- I think
I've done the right thing, but please let me know (or fix and commit) if not!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130470 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-29 02:12:06 +00:00
Nick Lewycky
7a2ba2fbe4
Only read *predecessor once so as to fix a theoretical issue where it changes
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between two reads (threading).
Fix an off-by-one in the indirect counter table that I meant to revert after an
earlier experiment. Whoops!
Implement GCOV_PREFIX. Doesn't handle GCOV_PREFIX_STRIP yet.
Fix an off-by-one in string emission. Extra whoops!
Tolerate DISubprograms that have null Function*'s attached to them. I don't yet
understand what this means, but it happens when you have a global static with
a non-trivial constructor/destructor.
Fix a crash on switch statements with a single successor (default-only).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130443 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-28 21:35:49 +00:00
Nick Lewycky
3f5c832909
Use static inline to do the right thing when built in C99 mode. Of course,
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C89 doesn't have an inline keyword.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130279 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-27 03:22:17 +00:00
Oscar Fuentes
ab92d1e1c2
Honor LLVM_BUILD_RUNTIME.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130199 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-26 14:55:27 +00:00
Nick Lewycky
e88c724ff0
Add cmakefiles to build profile_rt.so!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130191 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-26 05:48:41 +00:00
Nick Lewycky
1790c9cbb6
Rename everything to follow LLVM style ... I think.
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Add support for switch and indirectbr edges. This works by densely numbering
all blocks which have such terminators, and then separately numbering the
possible successors. The predecessors write down a number, the successor knows
its own number (as a ConstantInt) and sends that and the pointer to the number
the predecessor wrote down to the runtime, who looks up the counter in a
per-function table.
Coverage data should now be functional, but I haven't tested it on anything
other than my 2-file synthetic test program for coverage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130186 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-26 03:54:16 +00:00
Benjamin Kramer
571c0e95fa
Write out uint64_t as i{0..32},i{33..64} instead of i{0..32},0.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129638 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-16 10:25:32 +00:00
Nick Lewycky
ece78a30bd
Don't use C++ comments in C code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129637 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-16 04:25:36 +00:00
Nick Lewycky
b192870420
Rename LineProfiling to GCOVProfiling to more accurately represent what it
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does. Also mostly implement it. Still a work-in-progress, but generates legal
output on crafted test cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129630 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-16 01:20:23 +00:00
Chris Lattner
7a2bdde0a0
Fix a ton of comment typos found by codespell. Patch by
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Luis Felipe Strano Moraes!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-15 05:18:47 +00:00
Benjamin Kramer
8b505739f4
Fix format string warning.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129467 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-13 20:41:43 +00:00
Nick Lewycky
8a7f4ecbc1
Use %ull here.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129423 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-13 01:05:45 +00:00
Nick Lewycky
e9e7ffa10d
Print our uint64_t with the more portable (C99 and C++0x) %PRIu64 format
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specifier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129384 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 20:06:50 +00:00
Nick Lewycky
c6d8853dff
The counters are unsigned.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129380 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 19:35:45 +00:00
Nick Lewycky
93b68b20d4
Add support for line profiling. Very work-in-progress.
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Use debug info in the IR to find the directory/file:line:col. Each time that location changes, bump a counter.
Unlike the existing profiling system, we don't try to look at argv[], and thusly don't require main() to be present in the IR. This matches GCC's technique where you specify the profiling flag when producing each .o file.
The runtime library is minimal, currently just calling printf at program shutdown time. The API is designed to make it possible to emit GCOV data later on.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129340 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 01:06:09 +00:00
Andrew Trick
04317cc618
Implementation of path profiling.
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Modified patch by Adam Preuss.
This builds on the existing framework for block tracing, edge profiling and optimal edge profiling.
See -help-hidden for new flags.
For documentation, see the technical report "Implementation of Path Profiling..." in llvm.org/pubs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124515 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-29 01:09:53 +00:00
Mikhail Glushenkov
a7236d3a92
Rename 'libprofile/exported_symbols.lst' to 'libprofile/libprofile.exports'.
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Makefile.rules assumes that all EXPORTED_SYMBOL_FILEs have the .exports
extension.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112964 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-03 15:42:45 +00:00
Dan Gohman
630b58bb5a
Delete a blank line.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101459 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16 13:32:55 +00:00
Dan Gohman
7c52f2ee06
Make the export files absolute paths, and change Makefile.rules
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to expect them this way, to fix srcdir!=objdir builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101414 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15 23:08:00 +00:00
Daniel Dunbar
51faa37b4e
Don't use absolute path for EXPORTED_SYMBOL_FILE, this breaks under the new
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system.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101404 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15 21:57:43 +00:00
Anton Korobeynikov
764f62ba60
Revert r100896 and around - this breaks the only mingw32 buildbot we have.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101387 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15 19:51:42 +00:00
Chris Lattner
e3a39d40db
suck the propagating "has dynamic libs" check into a single makefile
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variable TARGET_HAS_DYNAMIC_LIBS
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100896 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-09 20:51:47 +00:00
Chris Lattner
21aa347c28
add minix support, patch by Kees van Reeuwijk! PR6797
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100895 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-09 20:45:04 +00:00
Chris Lattner
1c383ca2ef
disable this for mingw as well, we really need a 'has no dynamic linking' predicate.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97882 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-06 18:54:37 +00:00
Chris Lattner
8550592b80
disable libprofile on cygwin, patch by Aaron Gray.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97772 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05 01:00:34 +00:00
Daniel Dunbar
7cfbe2576d
Switch .bc/.ll Makefile rules to use LLVM{CC,CXX} instead of LLVMG{CC,XX}
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96936 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-23 10:28:06 +00:00
Chris Lattner
5fadf17709
remove the random sampling framework, which is not maintained anymore.
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If there is interest, it can be resurrected from SVN. PR4912.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92422 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-02 20:07:03 +00:00
Andreas Neustifter
f771dae69a
OptimalEdgeProfiling: Creation of profiles.
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This adds the instrumentation and runtime part of OptimalEdgeProfiling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80712 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-01 19:03:44 +00:00
Andreas Neustifter
1c29357c52
Read Makefile.config before using LLVMGCC.
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See http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090824/085828.html
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80372 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-28 16:13:45 +00:00
Daniel Dunbar
5a8969a7e2
Another NO_RUNTIME_LIBRARIES tweak...
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80331 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-28 03:06:28 +00:00
Daniel Dunbar
53339fd046
Tweak NO_RUNTIME_LIBS.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80330 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-28 02:20:39 +00:00
Daniel Dunbar
b562b47dee
Don't build runtime libraries in an Apple style build.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80303 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 23:43:28 +00:00
Andreas Neustifter
ade1a22522
Add llvm_start_edge_profiling to exported symbols for libprofile_rt.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79944 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-24 21:41:37 +00:00
Daniel Dunbar
a4b62c4518
Don't try to build .bc version of libprofile if LLVMGCC isn't available.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79514 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-20 05:12:55 +00:00
Daniel Dunbar
7dadba34d7
Remove cruft for installing runtime/ libraries directly into the LLVMGCCDIR;
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that is totally bogus.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79512 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-20 05:02:41 +00:00
Gordon Henriksen
6da385e07f
Drop toy GC runtime.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65801 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-02 03:46:48 +00:00
Gordon Henriksen
bcb265e2af
Fixing the stack walker.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46302 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-24 05:16:36 +00:00
Gordon Henriksen
8fa8929177
With this patch, the LowerGC transformation becomes the
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ShadowStackCollector, which additionally has reduced overhead with
no sacrifice in portability.
Considering a function @fun with 8 loop-local roots,
ShadowStackCollector introduces the following overhead
(x86):
; shadowstack prologue
movl L_llvm_gc_root_chain$non_lazy_ptr, %eax
movl (%eax), %ecx
movl $___gc_fun, 20(%esp)
movl $0, 24(%esp)
movl $0, 28(%esp)
movl $0, 32(%esp)
movl $0, 36(%esp)
movl $0, 40(%esp)
movl $0, 44(%esp)
movl $0, 48(%esp)
movl $0, 52(%esp)
movl %ecx, 16(%esp)
leal 16(%esp), %ecx
movl %ecx, (%eax)
; shadowstack loop overhead
(none)
; shadowstack epilogue
movl 48(%esp), %edx
movl %edx, (%ecx)
; shadowstack metadata
.align 3
___gc_fun: # __gc_fun
.long 8
.space 4
In comparison to LowerGC:
; lowergc prologue
movl L_llvm_gc_root_chain$non_lazy_ptr, %eax
movl (%eax), %ecx
movl %ecx, 48(%esp)
movl $8, 52(%esp)
movl $0, 60(%esp)
movl $0, 56(%esp)
movl $0, 68(%esp)
movl $0, 64(%esp)
movl $0, 76(%esp)
movl $0, 72(%esp)
movl $0, 84(%esp)
movl $0, 80(%esp)
movl $0, 92(%esp)
movl $0, 88(%esp)
movl $0, 100(%esp)
movl $0, 96(%esp)
movl $0, 108(%esp)
movl $0, 104(%esp)
movl $0, 116(%esp)
movl $0, 112(%esp)
; lowergc loop overhead
leal 44(%esp), %eax
movl %eax, 56(%esp)
leal 40(%esp), %eax
movl %eax, 64(%esp)
leal 36(%esp), %eax
movl %eax, 72(%esp)
leal 32(%esp), %eax
movl %eax, 80(%esp)
leal 28(%esp), %eax
movl %eax, 88(%esp)
leal 24(%esp), %eax
movl %eax, 96(%esp)
leal 20(%esp), %eax
movl %eax, 104(%esp)
leal 16(%esp), %eax
movl %eax, 112(%esp)
; lowergc epilogue
movl 48(%esp), %edx
movl %edx, (%ecx)
; lowergc metadata
(none)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45670 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-07 01:30:53 +00:00
Chris Lattner
234d529e58
remove attribution from a variety of miscellaneous files.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45425 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 22:59:10 +00:00
Chris Lattner
57360d1f1c
remove attributions from the rest of the llvm makefiles.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45416 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 20:11:13 +00:00
Gordon Henriksen
326e24fff0
GarbageCollection.html is expanded to encompass the coming
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capabilities. This is a major rewrite and is easier to read en toto
rather than patchwise.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42414 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-27 19:31:36 +00:00
Chris Lattner
95bb69acbc
Reenable libgc and libprofile is explicitly requested.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41851 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-11 17:12:32 +00:00