Commit Graph

240 Commits

Author SHA1 Message Date
Mark Seaborn 1b3dd3527e Fix inlining to not lose the "cleanup" clause from landingpads
This fixes PR17872.  This bug can lead to C++ destructors not being
called when they should be, when an exception is thrown.

llvm-svn: 196711
2013-12-08 00:51:21 +00:00
Mark Seaborn ef3dbb93ec Fix inlining to not produce duplicate landingpad clauses
Before this change, inlining one "invoke" into an outer "invoke" call
site can lead to the outer landingpad's catch/filter clauses being
copied multiple times into the resulting landingpad.  This happens:

 * when the inlined function contains multiple "resume" instructions,
   because forwardResume() copies the clauses but is called multiple
   times;

 * when the inlined function contains a "resume" and a "call", because
   HandleCallsInBlockInlinedThroughInvoke() copies the clauses but is
   redundant with forwardResume().

Fix this by deduplicating the code.

This problem doesn't lead to any incorrect execution; it's only
untidy.

This change will make fixing PR17872 a little easier.

llvm-svn: 196710
2013-12-08 00:50:58 +00:00
Mark Seaborn d91fa22b06 InlineFunction.cpp: Remove a return value that is always false
Remove some associated dead code.

This cleanup is associated with PR17872.

llvm-svn: 196147
2013-12-02 20:50:59 +00:00
David Majnemer 120f4a06fd Revert "Inliner: Handle readonly attribute per argument when adding memcpy"
This reverts commit r193356, it caused PR17781.

A reduced test case covering this regression has been added to the test suite.

llvm-svn: 193955
2013-11-03 12:22:13 +00:00
Manman Ren 87a2adc7fe Do not convert "call asm" to "invoke asm" in Inliner.
Given that backend does not handle "invoke asm" correctly ("invoke asm" will be
handled by SelectionDAGBuilder::visitInlineAsm, which does not have the right
setup for LPadToCallSiteMap) and we already made the assumption that inline asm
does not throw in InstCombiner::visitCallSite, we are going to make the same
assumption in Inliner to make sure we don't convert "call asm" to "invoke asm".

If it becomes necessary to add support for "invoke asm" later on, we will need
to modify the backend as well as remove the assumptions that inline asm does
not throw.

Fix rdar://15317907

llvm-svn: 193808
2013-10-31 21:56:03 +00:00
Tom Stellard bc7d87f07c Inliner: Handle readonly attribute per argument when adding memcpy
Patch by: Vincent Lejeune

llvm-svn: 193356
2013-10-24 16:38:33 +00:00
Richard Trieu 624c2ebcbb Fix a use after free. RI is freed before the call to getDebugLoc(). To
prevent this, capture the location before RI is freed.

llvm-svn: 180824
2013-04-30 22:45:10 +00:00
Adrian Prantl 8beccf9e6d Spelling. Thanks, Eric.
llvm-svn: 180794
2013-04-30 17:33:32 +00:00
Adrian Prantl 0941638a1b Set debug locations for branch instructions created during inlining, even
the inlined function has multiple returns.

rdar://problem/12415623

llvm-svn: 180793
2013-04-30 17:08:16 +00:00
Adrian Prantl 15db52bf6d Make sure the instruction right after an inlined function has a
debug location. This solves a problem where range of an inlined
subroutine is emitted wrongly.
Patch by Manman Ren.

Fixes rdar://problem/12415623

llvm-svn: 180140
2013-04-23 19:56:03 +00:00
Bill Wendling 56f15bf490 Add all clauses when merging the landing pads. Duplicates will be handled later on.
llvm-svn: 177757
2013-03-22 20:31:05 +00:00
Bill Wendling a397c017bb Don't use the removed API.
llvm-svn: 177749
2013-03-22 18:49:53 +00:00
Bill Wendling 173c71ff3d Always forward 'resume' instructions to the outter landing pad.
How did this ever work?

Basically, if you have a function that's inlined into the caller, it may not
have any 'call' instructions, but any 'resume' instructions it may have should
still be forwarded to the outer (caller's) landing pad. This requires that all
of the 'landingpad' instructions in the callee have their clauses merged with
the caller's outer 'landingpad' instruction (hence the bit of ugly code in the
`forwardResume' method).

Testcase in a follow commit to the test-suite repository.

<rdar://problem/13360379> & PR15555

llvm-svn: 177680
2013-03-21 23:30:12 +00:00
Chandler Carruth 9fb823bbd4 Move all of the header files which are involved in modelling the LLVM IR
into their new header subdirectory: include/llvm/IR. This matches the
directory structure of lib, and begins to correct a long standing point
of file layout clutter in LLVM.

There are still more header files to move here, but I wanted to handle
them in separate commits to make tracking what files make sense at each
layer easier.

The only really questionable files here are the target intrinsic
tablegen files. But that's a battle I'd rather not fight today.

I've updated both CMake and Makefile build systems (I think, and my
tests think, but I may have missed something).

I've also re-sorted the includes throughout the project. I'll be
committing updates to Clang, DragonEgg, and Polly momentarily.

llvm-svn: 171366
2013-01-02 11:36:10 +00:00
Chandler Carruth ed0881b2a6 Use the new script to sort the includes of every file under lib.
Sooooo many of these had incorrect or strange main module includes.
I have manually inspected all of these, and fixed the main module
include to be the nearest plausible thing I could find. If you own or
care about any of these source files, I encourage you to take some time
and check that these edits were sensible. I can't have broken anything
(I strictly added headers, and reordered them, never removed), but they
may not be the headers you'd really like to identify as containing the
API being implemented.

Many forward declarations and missing includes were added to a header
files to allow them to parse cleanly when included first. The main
module rule does in fact have its merits. =]

llvm-svn: 169131
2012-12-03 16:50:05 +00:00
Alexey Samsonov cfd662f279 Figure out <size> argument of llvm.lifetime intrinsics at the moment they are created (during function inlining)
llvm-svn: 167821
2012-11-13 07:15:32 +00:00
Micah Villmow cdfe20b97f Move TargetData to DataLayout.
llvm-svn: 165402
2012-10-08 16:38:25 +00:00
Chandler Carruth aafe0918bc Move llvm/Support/IRBuilder.h -> llvm/IRBuilder.h
This was always part of the VMCore library out of necessity -- it deals
entirely in the IR. The .cpp file in fact was already part of the VMCore
library. This is just a mechanical move.

I've tried to go through and re-apply the coding standard's preferred
header sort, but at 40-ish files, I may have gotten some wrong. Please
let me know if so.

I'll be committing the corresponding updates to Clang and Polly, and
Duncan has DragonEgg.

Thanks to Bill and Eric for giving the green light for this bit of cleanup.

llvm-svn: 159421
2012-06-29 12:38:19 +00:00
Bill Wendling e38859dc8e Move lib/Analysis/DebugInfo.cpp to lib/VMCore/DebugInfo.cpp and
include/llvm/Analysis/DebugInfo.h to include/llvm/DebugInfo.h.

The reasoning is because the DebugInfo module is simply an interface to the
debug info MDNodes and has nothing to do with analysis.

llvm-svn: 159312
2012-06-28 00:05:13 +00:00
Dmitri Gribenko dbeafa773a Convert comments to proper Doxygen comments.
llvm-svn: 158248
2012-06-09 00:01:45 +00:00
Eric Christopher 2b40fdf3ae Tidy.
llvm-svn: 153456
2012-03-26 19:09:40 +00:00
Eric Christopher f16bee8682 Tidy.
llvm-svn: 153455
2012-03-26 19:09:38 +00:00
Chad Rosier 07d37bc1ed Add support for disabling llvm.lifetime intrinsics in the AlwaysInliner. These
are optimization hints, but at -O0 we're not optimizing.  This becomes a problem
when the alwaysinline attribute is abused.
rdar://10921594

llvm-svn: 151429
2012-02-25 02:56:01 +00:00
Bill Wendling 0aef16afd5 [unwind removal] Remove all of the code for the dead 'unwind' instruction. There
were no 'unwind' instructions being generated before this, so this is in effect
a no-op.

llvm-svn: 149906
2012-02-06 21:44:22 +00:00
Bill Wendling 3fd879dde2 s/getInnerUnwindDest/getInnerResumeDest/g
llvm-svn: 149328
2012-01-31 01:48:40 +00:00