Commit Graph

29 Commits

Author SHA1 Message Date
Jim Grosbach
e4ad387a5a Add a pre-dispatch SjLj EH hook on the unwind edge for targets to do any
setup they require. Use this for ARM/Darwin to rematerialize the base
pointer from the frame pointer when required. rdar://8564268

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116879 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-19 23:27:08 +00:00
Dan Gohman
3dfb3cfb38 Fix whitespace to be more consistent with AsmPrinter's style.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104962 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 17:07:41 +00:00
Jim Grosbach
90346e2261 Add entry for llvm.eh.sjlj.longjmp. PR4999.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104703 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-26 16:21:41 +00:00
mike-m
e2c3a49c80 Revert r103213. It broke several sections of live website.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103219 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07 00:28:04 +00:00
mike-m
68cb31901c Overhauled llvm/clang docs builds. Closes PR6613.
NOTE: 2nd part changeset for cfe trunk to follow.

*** PRE-PATCH ISSUES ADDRESSED

- clang api docs fail build from objdir
- clang/llvm api docs collide in install PREFIX/
- clang/llvm main docs collide in install
- clang/llvm main docs have full of hard coded destination
  assumptions and make use of absolute root in static html files;
  namely CommandGuide tools hard codes a website destination
  for cross references and some html cross references assume
  website root paths

*** IMPROVEMENTS

- bumped Doxygen from 1.4.x -> 1.6.3
- splits llvm/clang docs into 'main' and 'api' (doxygen) build trees
- provide consistent, reliable doc builds for both main+api docs
- support buid vs. install vs. website intentions
- support objdir builds
- document targets with 'make help'
- correct clean and uninstall operations
- use recursive dir delete only where absolutely necessary
- added call function fn.RMRF which safeguards against botched 'rm -rf';
  if any target (or any variable is evaluated) which attempts
  to remove any dirs which match a hard-coded 'safelist', a verbose
  error will be printed and make will error-stop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103213 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06 23:45:43 +00:00
Jim Grosbach
ca752c9020 Update of 94055 to track the IR level call site information via an intrinsic.
This allows code gen and the exception table writer to cooperate to make sure
landing pads are associated with the correct invoke locations.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94726 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-28 01:45:32 +00:00
Duncan Sands
b01bbdcc1a I don't see any point in having both eh.selector.i32 and eh.selector.i64,
so get rid of eh.selector.i64 and rename eh.selector.i32 to eh.selector.
Likewise for eh.typeid.for.  This aligns us with gcc, which always uses a
32 bit value for the selector on all platforms.  My understanding is that
the register allocator used to assert if the selector intrinsic size didn't
match the pointer size, and this was the reason for introducing the two
variants.  However my testing shows that this is no longer the case (I
fixed some bugs in selector lowering yesterday, and some more today in the
fastisel path; these might have caused the original problems).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84106 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-14 16:11:37 +00:00
Bill Wendling
169e1b0ed6 Fix validation errors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81466 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-10 22:14:16 +00:00
Bill Wendling
808b9ce756 Fix validation errors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81465 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-10 22:12:50 +00:00
Eric Christopher
61f6978e8b Correct __cxa_end_catch documentation to reflect that it doesn't take any arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81307 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09 01:44:53 +00:00
Jim Grosbach
00484d15aa Add basic information about SJLJ EH
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79714 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-22 01:42:39 +00:00
Jim Grosbach
2962664227 Remove a bit more cruft from the sjlj moving to a backend pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79272 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-17 20:25:04 +00:00
Bill Wendling
bf230bf5cc Fix validation errors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79131 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-15 20:08:04 +00:00
Bill Wendling
3cf4ffd2af Fix validation errors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79130 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-15 20:07:42 +00:00
Bill Wendling
c4f661e3de Reformatting and some cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79088 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-15 08:56:09 +00:00
Jim Grosbach
1b747ad8a0 SjLj based exception handling unwinding support. This patch is nasty, brutish
and short. Well, it's kinda short. Definitely nasty and brutish.

The front-end generates the register/unregister calls into the SjLj runtime,
call-site indices and landing pad dispatch. The back end fills in the LSDA
with the call-site information provided by the front end. Catch blocks are
not yet implemented.

Built on Darwin and verified no llvm-core "make check" regressions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78625 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11 00:09:57 +00:00
Benjamin Kramer
e15192b36b Documentation: fix HTML validation errors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78196 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05 15:42:44 +00:00
Jim Grosbach
06261cd882 clean up line-wrapping
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71771 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-14 15:44:15 +00:00
Jim Grosbach
f957012866 Update the names of the exception handling sjlj instrinsics to
llvm.eh.sjlj.* for better clarity as to their purpose and scope. Add
a description of llvm.eh.sjlj.setjmp to ExceptionHandling.html.
(llvm.eh.sjlj.longjmp documentation coming when that implementation is
added).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71758 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-14 00:46:35 +00:00
Duncan Sands
6531d477a2 Clarify a bit. Based on feedback by Talin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61470 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-29 15:27:32 +00:00
Misha Brukman
444087057a Global replace of yellow W3C "valid HTML/CSS" icons with blue ones.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60880 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-11 17:34:48 +00:00
Bill Wendling
d40bc4ad43 Validation fixes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42232 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-22 10:17:08 +00:00
Anton Korobeynikov
8806c7b1f5 Split eh.select / eh.typeid.for intrinsics into i32/i64 versions. This is needed, because they just "mark" register
liveins and we let frontend solve type issue, not lowering code :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41763 91177308-0d34-0410-b5e6-96231b3b80d8
2007-09-07 11:39:35 +00:00
Duncan Sands
6590b0457c There is an impedance matching problem between LLVM and
gcc exception handling: if an exception unwinds through
an invoke, then execution must branch to the invoke's
unwind target.  We previously tried to enforce this by
appending a cleanup action to every selector, however
this does not always work correctly due to an optimization
in the C++ unwinding runtime: if only cleanups would be
run while unwinding an exception, then the program just
terminates without actually executing the cleanups, as
invoke semantics would require.  I was hoping this
wouldn't be a problem, but in fact it turns out to be the
cause of all the remaining failures in the LLVM testsuite
(these also fail with -enable-correct-eh-support, so turning
on -enable-eh didn't make things worse!).  Instead we need
to append a full-blown catch-all to the end of each
selector.  The correct way of doing this depends on the
personality function, i.e. it is language dependent, so
can only be done by gcc.  Thus this patch which generalizes
the eh.selector intrinsic so that it can handle all possible
kinds of action table entries (before it didn't accomodate
cleanups): now 0 indicates a cleanup, and filters have to be
specified using the number of type infos plus one rather than
the number of type infos.  Related gcc patches will cause
Ada to pass a cleanup (0) to force the selector to always
fire, while C++ will use a C++ catch-all (null).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41484 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-27 15:47:50 +00:00
Duncan Sands
cf26d7ccac Extend eh.selector to support both catches and filters.
Drop the eh.filter intrinsic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37875 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-04 20:52:51 +00:00
Duncan Sands
fb0a64a172 Fix typos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36124 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-16 13:02:27 +00:00
Duncan Sands
b0a1cbff0d Correct typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35989 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-14 12:30:27 +00:00
Duncan Sands
8036ca47e2 Various hopefully correct easy fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35506 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-30 12:22:09 +00:00
Jim Laskey
d0d39b685b First draft of exception handling doc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35100 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-14 19:29:42 +00:00