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2365f51ed0
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19479 Commits

Author SHA1 Message Date
Anton Korobeynikov
2365f51ed0 Long live the exception handling! 
This patch fills the last necessary bits to enable exceptions
handling in LLVM. Currently only on x86-32/linux.

In fact, this patch adds necessary intrinsics (and their lowering) which
represent really weird target-specific gcc builtins used inside unwinder.

After corresponding llvm-gcc patch will land (easy) exceptions should be
more or less workable. However, exceptions handling support should not be 
thought as 'finished': I expect many small and not so small glitches
everywhere.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39855 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-14 14:06:15 +00:00
Nick Lewycky
a73d11efd4 Use maximal intersection algorithm exclusively. Fixes miscompile bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39852 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-14 04:28:04 +00:00
Nick Lewycky
377b1190cb Add alternate ConstantRange intersection algorithm. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39851 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-14 02:51:34 +00:00
Devang Patel
b4559a2179 Make LCSSA a loop pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39844 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 23:57:11 +00:00
Evan Cheng
03494d7c8f Fix for PR1540: Specify F0, F1 are sub-registers of D0, etc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39843 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 23:55:50 +00:00
Owen Anderson
a08971559d Handle GEPs with all-zero indices in the same way we handle pointer-pointer bitcasts. Also, fix a potentia infinite loop. 
This brings FastDSE to parity with old DSE on 175.vpr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39839 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 22:50:48 +00:00
Devang Patel
fba36b8cba Disable claims to preserve analysis until open issues are resolved. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39834 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 21:53:42 +00:00
Dan Gohman
a346615d11 Fix the comment for LegalizeOp to more accurately reflect what it does. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39827 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 20:14:11 +00:00
Dan Gohman
05d92fe7c4 Don't call SimplifyVBinOp for non-vector operations, following earlier review 
feedback. This theoretically makes the common (scalar) case more efficient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39823 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 20:03:40 +00:00
Owen Anderson
3e8d001799 Be more aggressive in removing dead stores, and in removing instructions trivially dead after DSE. 
This drastically improves the effect of FastDSE on kimwitu++.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39819 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 18:26:26 +00:00
Dale Johannesen
72f1596403 Modify previous patch per review comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39817 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 17:31:29 +00:00
Dale Johannesen
e7e7d0d7e3 Skeleton of post-RA scheduler; doesn't do anything yet. 
Change name of -sched option and DEBUG_TYPE to
pre-RA-sched; adjust testcases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39816 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 17:13:54 +00:00
Chris Lattner
8dc4b59b85 Fix CodeGen/Generic/print-arith-fp.ll on sparc (PR1551) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39813 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 16:24:10 +00:00
Owen Anderson
43b2676cc2 Reimplement removing stores to allocas at the end of a function. This should be safe now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39790 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-12 21:41:30 +00:00
Owen Anderson
dd61c2b25c Make the condition-checking for free with non-trivial dependencies more correct. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39789 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-12 18:08:51 +00:00
Owen Anderson
1b4542b6df Remove the end-block handling code. It was unsafe, and making it safe would have resulted in falling back to the slow DSE case. I need to think some more about the right way to handle this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39788 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-12 17:52:20 +00:00
Dale Johannesen
66a2a8f878 ARM: make branch folder remove unconditional branches 
following jump tables that it earlier inserted.  This
would be OK on other targets but is needed for correctness
only on ARM (constant islands needs to find jump tables).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39782 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-12 16:45:35 +00:00
Duncan Sands
bb821dd79b The type ids making up a filter are unsigned, and 
should be output as unsigned values.  Checked against
gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39775 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-12 13:51:39 +00:00
Gabor Greif
3b0a7ea66e checked in as obvious, 
thanks Benoit Boissinot!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39774 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-12 13:31:38 +00:00
Chris Lattner
ca23e17adf another missed SSE optimization 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39772 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-12 06:31:38 +00:00
Owen Anderson
1cb960a4bb Let MemoryDependenceAnalysis take care of updating AliasAnalysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39769 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-12 00:06:21 +00:00
Devang Patel
990e866deb Preserve analysis info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39767 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 23:47:28 +00:00
Bruno Cardoso Lopes
a4e8200366 Added support for Mips specific GAS directives 
Fixed print immediate 
Fixed Identation on MipsISelDAGToDAG.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39764 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 23:24:41 +00:00
Bruno Cardoso Lopes
7b155fbd60 Added support for framepointer 
Prologue/Epilogue support fp,ra save/restore and use the stack frame the right
way!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39763 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 23:21:31 +00:00
Owen Anderson
a96c1f665a Handle the case where an entire structure is freed, and its dependency is a store to a field within 
that structure.

Also, refactor the runOnBasicBlock() function, splitting some of the special cases into separate functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39762 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 23:19:17 +00:00
Bruno Cardoso Lopes
758dcca57a Now that stack is represented the right way, LOA starts at 0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39761 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 23:17:41 +00:00
Bruno Cardoso Lopes
2ab22d1b93 Fixed AddLiveOut issues 
FI's created the write way to represent Mips stack


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39760 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 23:16:16 +00:00
Bruno Cardoso Lopes
332a3d22a2 Removed unused immediate PatLeaf, fixed lui instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39759 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 22:47:02 +00:00
Bruno Cardoso Lopes
4215a59a76 Added MipsMachineFunction class, to hold Mips dinamic stack info when inserting Prologue/Epilog 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39758 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 22:44:21 +00:00
Owen Anderson
6f46d65104 Add support for eliminate stores to stack-allocated memory locations at the end 
of a function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39754 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 21:06:56 +00:00
Owen Anderson
2655adb3b2 Handle eliminating stores that occur right before a free. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39753 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 20:38:34 +00:00
Lauro Ramos Venancio
a126bb71d5 Handle packed structs in the CBackend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39752 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 19:56:53 +00:00
Evan Cheng
28bb462d4c Missed a couple of places where new instructions are added due to spill / restore. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39748 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 19:17:18 +00:00
Owen Anderson
bfbfb3c464 Clean up a few things based on Chris' feedback. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39747 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 19:03:09 +00:00
Tanya Lattner
08d14d2469 Adding ability to demote phi to stack. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39744 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 18:41:34 +00:00
Dale Johannesen
5d9c4b6020 Fix hang compiling TimberWolf (allow for islands 
of size other than 4).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39743 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 18:32:38 +00:00
Lauro Ramos Venancio
75ce010f7b Assert when TLS is not implemented. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39737 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 17:19:51 +00:00
Duncan Sands
c3751600b7 Exception handling has been implemented. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39732 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 16:59:20 +00:00
Chris Lattner
082ced9391 Fix an oversight: for modules with no other identifying target info, 
the sparc backend should be preferred when running on sparcs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39142 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 16:32:10 +00:00
Duncan Sands
97b4ac8c84 If assertions are not enabled, we should return False here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38535 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 08:47:55 +00:00
Evan Cheng
b9591c667d No longer need to track last def / use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38534 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 08:47:44 +00:00
Evan Cheng
0c40d72b01 Fix for PR1545: Revamp code that update kill information due to register reuse. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38525 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 05:28:39 +00:00
Owen Anderson
b77c457cc8 Add FastDSE, a new algorithm for doing dead store elimination. This algorithm is not as accurate 
as the current DSE, but it only a linear scan over each block, rather than quadratic.  Eventually
(once it has been improved somewhat), this will replace the current DSE.

NOTE: This has not yet been extensively tested.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38517 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 00:46:18 +00:00
David Greene
67fcdf7f65 Make this work with GLIBCXX_DEBUG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38516 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 22:00:30 +00:00
Evan Cheng
8202010364 Didn't mean the last commit. Revert. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38515 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 22:00:16 +00:00
Dale Johannesen
afdc7fda65 Fix fp_constant_op failure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38514 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 21:53:30 +00:00
Evan Cheng
c608ff22e7 Update. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38513 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 21:49:47 +00:00
Dale Johannesen
bf6b8272b1 fix 80 columnn violations, increasing the world's 
pedantic satisfaction level.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38512 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 20:53:41 +00:00
Owen Anderson
8e85048d7b Calculate the size of a array allocation correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38511 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 20:48:38 +00:00
Owen Anderson
202da14fe0 Fix a crasher when finding the dependency of a call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38510 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 20:39:07 +00:00