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24929 Commits

Author SHA1 Message Date
Benjamin Kramer
96956ed0ff Reduce string trashing. 
llvm-svn: 100038
 2010-03-31 20:15:45 +00:00
Benjamin Kramer
74729ae094 DwarfDebug: Allocate DIEValues with a BumpPtrAllocator. Most of them are 
POD-like anyway, so we don't even care about calling their d'tors (DIEBlock
being the exception).

~6% less mallocs and ~1% compile time improvement on clang -O0 -g oggenc.c

llvm-svn: 100035
 2010-03-31 19:34:01 +00:00
Chris Lattner
17d38594fe reduce indentation 
llvm-svn: 99999
 2010-03-31 06:09:04 +00:00
Chris Lattner
71696ef1ad tidy up 
llvm-svn: 99998
 2010-03-31 06:06:37 +00:00
Chris Lattner
03e1b5ab5c MI != 0 is checked in the assert right above this. 
llvm-svn: 99995
 2010-03-31 05:42:48 +00:00
Chris Lattner
848c7d2e49 use the isDebugValue() predicate and pop_back_val() 
llvm-svn: 99993
 2010-03-31 05:39:57 +00:00
Chris Lattner
8d2fe28910 assert is a function-like macro, not a control flow operator. 
llvm-svn: 99992
 2010-03-31 05:36:29 +00:00
Chris Lattner
a5ab82a613 reduce indentation, fit in 80 cols and various other cosmetic cleanups. 
llvm-svn: 99989
 2010-03-31 05:15:22 +00:00
Chris Lattner
3131ae86d8 use the optimized debug info apis in sdisel. 
llvm-svn: 99986
 2010-03-31 04:24:50 +00:00
Chris Lattner
009de335ac add new apis for getting/setting !dbg metadata on 
instructions.  In addition to being a convenience,
they are faster than the old apis, particularly when
not going from an MDKindID like people should be
doing.

llvm-svn: 99982
 2010-03-31 03:34:40 +00:00
Bob Wilson
6f7fd28824 Revert Mon Ping's change 99928, since it broke all the llvm-gcc buildbots. 
llvm-svn: 99948
 2010-03-30 22:27:04 +00:00
Devang Patel
57c644f926 Ignore invalid metadata. 
llvm-svn: 99938
 2010-03-30 22:09:52 +00:00
Mon P Wang
7460571381 Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset, 
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
A update of langref will occur in a subsequent checkin.

llvm-svn: 99928
 2010-03-30 20:55:56 +00:00
Benjamin Kramer
04c713dd45 Introduce SpecificBumpPtrAllocator, a wrapper for BumpPtrAllocator which allows 
only a single type of object to be allocated. Use it to make VNInfo destruction
typesafe.

llvm-svn: 99919
 2010-03-30 20:16:45 +00:00
Chris Lattner
9897043928 Rip out the 'is temporary' nonsense from the MCContext interface to 
create symbols.  It is extremely error prone and a source of a lot
of the remaining integrated assembler bugs on x86-64.

This fixes rdar://7807601.

llvm-svn: 99902
 2010-03-30 18:10:53 +00:00
Evan Cheng
85eea4e031 Funky indentation. 
llvm-svn: 99901
 2010-03-30 18:08:53 +00:00
Devang Patel
67d94ab0f8 There is no need to fall through after processing DBG_VALUE machine instruction. 
llvm-svn: 99899
 2010-03-30 18:07:00 +00:00
Daniel Dunbar
692d165c3b Fix -Asserts warning. 
llvm-svn: 99895
 2010-03-30 17:57:42 +00:00
Torok Edwin
8061bb141e Reapply r99881 with some fixes: only call destructor in releaseMemory! 
llvm-svn: 99883
 2010-03-30 11:17:48 +00:00
Torok Edwin
a2d1dc42e1 Revert 99881, it brooke smooshlab's llvm-gcc-i386-darwin9. 
llvm-svn: 99882
 2010-03-30 10:25:08 +00:00
Torok Edwin
ba6d13c0ea Introduce another Reset() method in BumpPtrAllocator that calls a destructor 
on all objects it has allocated, if they are all of the same size and alignment.
Use this to destruct all VNInfos allocated in LiveIntervalAnalysis (PR6653).

valnos is not reliable for this purpose, as seen in r99400
(which still leaked, and sometimes caused double frees).

llvm-svn: 99881
 2010-03-30 10:08:26 +00:00
Evan Cheng
cbcccce420 Avoid being influenced by the presence of dbg_value instructions. 
llvm-svn: 99879
 2010-03-30 05:49:07 +00:00
Bill Wendling
b2799edaf6 Re-add back in the slow way of determining of a clean-up should become a 
catch-all. The "dominates" way won't catch all of the selectors which must be
changed.

llvm-svn: 99850
 2010-03-29 23:37:07 +00:00
Bill Wendling
decbb74d68 A more general (and simpler!) implementation of r99671. It performs a similar 
transform. I.e., if a clean-up eh.selector call dominates the invoke of an
_Unwind_Resume_or_Rethrow, then we convert the eh.selector into a
catch-all. This patch, however, uses the DominatorTree information, and doesn't
go through the whole rigmarole of starting at the eh.exception call, finding the
corresponding URoR and eh.selector calls, and trying to trace through any number
of instruction types to get to them.

llvm-svn: 99846
 2010-03-29 23:02:46 +00:00
Devang Patel
23b2ae621c Encode start location of debug value, communicated through DBG_VALUE machine instruction, in a variable's DIE. 
llvm-svn: 99845
 2010-03-29 22:59:58 +00:00
Evan Cheng
742db6874a Fix PR4975. Avoid referencing empty vector. 
llvm-svn: 99840
 2010-03-29 21:27:30 +00:00
Evan Cheng
4d1aa2a1c6 Pool allocate SDDbgValue nodes. 
llvm-svn: 99836
 2010-03-29 20:48:30 +00:00
Chris Lattner
6efa201f7f use RAII for ExceptionTimer too 
llvm-svn: 99833
 2010-03-29 20:39:38 +00:00
Chris Lattner
4787975994 fix a variety of issues were we'd start DebugTimer but 
not stop it by using RAII.

llvm-svn: 99832
 2010-03-29 20:38:20 +00:00
Devang Patel
bd477bef25 Refactor code to push DILocation prcessing into DwarfDebug.cpp from AsmPrinter.cpp. 
This is same as r99772 (which was reverted) with just one meaningful difference where two source lines exchanged their positions.

llvm-svn: 99816
 2010-03-29 17:20:31 +00:00
Devang Patel
1e8ccb5f8b Revert 99772. 
llvm-svn: 99778
 2010-03-28 21:23:37 +00:00
Chris Lattner
03719af41d add a statistic for the # times isel has to backtrack. 
llvm-svn: 99774
 2010-03-28 19:46:56 +00:00
Devang Patel
32bdaef3fe Refactoring. Push DILocation processing in to DwarfDebug from AsmPrinter. 
llvm-svn: 99772
 2010-03-28 18:57:09 +00:00
Chris Lattner
6642118e83 finally remove the immAllOnesV_bc/immAllZerosV_bc patterns 
and those derived from them.  These are obnoxious because
they were written as: PatLeaf<(bitconvert).  Not having an
argument was foiling adding better type checking for operand
count matching up with what was required (in this case,
bitconvert always requires an operand!)

llvm-svn: 99759
 2010-03-28 08:43:23 +00:00
Chris Lattner
89ad2f1d60 comply with the wishes of a fixme. 
llvm-svn: 99742
 2010-03-28 05:55:17 +00:00
Chris Lattner
4d8786b5cc now that (parallel) is gone and a variety of bugs in targets 
are cleaned up, we can remove an old fixme.

llvm-svn: 99741
 2010-03-28 05:54:03 +00:00
Chris Lattner
49e2773dd8 add an optimized form of OPC_EmitMergeInputChains for the 1, 0 and 
1, 1 cases which are by-far the most frequent.  This shrinks the X86
isel table from 77014 -> 74657 bytes.

llvm-svn: 99740
 2010-03-28 05:50:16 +00:00
Chris Lattner
e01f7e33ac don't add nodes to the now-dead nodes list multiple times, this 
can cause a crash on crazy situations in msp430 when morph-node-to
is disabled.

llvm-svn: 99739
 2010-03-28 05:28:31 +00:00
Chris Lattner
7aed1fb69d don't add flag nodes with chain results to the NowDeadNodes 
list multiple times when MorphNodeTo can't be applied.

llvm-svn: 99735
 2010-03-28 04:54:33 +00:00
Chris Lattner
decc73d4bc improve -debug-only=isel comments for cases when we don't enter a 
scope due to obviously false predicate.

llvm-svn: 99723
 2010-03-27 18:54:50 +00:00
Bill Wendling
6888e798d3 Forgot the part where we handle the ".llvm.eh.catch.all.value". 
llvm-svn: 99697
 2010-03-27 01:24:30 +00:00
Bill Wendling
ec8b44adeb Return if we changed anything or not. 
llvm-svn: 99695
 2010-03-27 01:22:38 +00:00
Bill Wendling
f2c1f40e95 If a selector has a call to ".llvm.eh.catch.all.value" that we haven't 
converted, then use the initializer, since using the name itself won't work.

llvm-svn: 99692
 2010-03-27 01:19:12 +00:00
Bill Wendling
d1aa77c37d If we mark clean-ups as clean-ups, then it could break when inlining through an 
'invoke' instruction. You will get a situation like this:

bb:
  %ehptr = eh.exception()
  %sel = eh.selector(%ehptr, @per, 0);

...

bb2:
  invoke _Unwind_Resume_or_Rethrow(%ehptr) %normal unwind to %lpad

lpad:
  ...

The unwinder will see the %sel call as a clean-up and, if it doesn't have a
catch further up the call stack, it will skip running it. But there *is* another
catch up the stack -- the catch for the %lpad. However, we can't see that. This
is fixed in code-gen, where we detect this situation, and convert the "clean-up"
selector call into a "catch-all" selector call. This gives us the correct
semantics.

llvm-svn: 99671
 2010-03-26 23:41:30 +00:00
Anton Korobeynikov
2f072e95e6 Add few missed libcalls and correct names for others. 
llvm-svn: 99656
 2010-03-26 21:32:14 +00:00
Dale Johannesen
6096d5a279 Debug info shouldn't affect kills. 
llvm-svn: 99637
 2010-03-26 19:21:26 +00:00
Evan Cheng
eb50ac5ccc LiveVariables should clear kill / dead markers first. This allows us to remove a hack in the scheduler. 
llvm-svn: 99597
 2010-03-26 02:12:24 +00:00
Evan Cheng
7b4a1a221b Try trivial remat before the coalescer gives up on a vr / physreg coalescing for fear of tying up a physical register. 
llvm-svn: 99575
 2010-03-26 00:07:25 +00:00
Dale Johannesen
5d99d7fe79 Handle DEBUG_VALUE in this pass. 
llvm-svn: 99573
 2010-03-26 00:02:44 +00:00
Evan Cheng
510bda2064 Code clean up. 
llvm-svn: 99544
 2010-03-25 19:46:11 +00:00