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9275 Commits

Author SHA1 Message Date
Chris Lattner
fac22403cb MI != 0 is checked in the assert right above this. 
llvm-svn: 99995
 2010-03-31 05:42:48 +00:00
Chris Lattner
baad3cbf19 use the isDebugValue() predicate and pop_back_val() 
llvm-svn: 99993
 2010-03-31 05:39:57 +00:00
Chris Lattner
9653faca87 assert is a function-like macro, not a control flow operator. 
llvm-svn: 99992
 2010-03-31 05:36:29 +00:00
Chris Lattner
d015147472 reduce indentation, fit in 80 cols and various other cosmetic cleanups. 
llvm-svn: 99989
 2010-03-31 05:15:22 +00:00
Chris Lattner
1d2ea2510d use the optimized debug info apis in sdisel. 
llvm-svn: 99986
 2010-03-31 04:24:50 +00:00
Chris Lattner
27c9cacb63 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
aae933cc81 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
2a2b092bf0 Ignore invalid metadata. 
llvm-svn: 99938
 2010-03-30 22:09:52 +00:00
Mon P Wang
9351ea594a 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
4b94ce229d 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
8e4cf6f425 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
6286e43067 Funky indentation. 
llvm-svn: 99901
 2010-03-30 18:08:53 +00:00
Devang Patel
a103a31a3c 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
c457891855 Fix -Asserts warning. 
llvm-svn: 99895
 2010-03-30 17:57:42 +00:00
Torok Edwin
df7c52143e Reapply r99881 with some fixes: only call destructor in releaseMemory! 
llvm-svn: 99883
 2010-03-30 11:17:48 +00:00
Torok Edwin
0994bb75ce Revert 99881, it brooke smooshlab's llvm-gcc-i386-darwin9. 
llvm-svn: 99882
 2010-03-30 10:25:08 +00:00
Torok Edwin
24db267b1e 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
e195c4f65d Avoid being influenced by the presence of dbg_value instructions. 
llvm-svn: 99879
 2010-03-30 05:49:07 +00:00
Bill Wendling
bec66951a6 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
faacede11f 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
953a86e2bb 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
b1ddb193c7 Fix PR4975. Avoid referencing empty vector. 
llvm-svn: 99840
 2010-03-29 21:27:30 +00:00
Evan Cheng
aafcb722f9 Pool allocate SDDbgValue nodes. 
llvm-svn: 99836
 2010-03-29 20:48:30 +00:00
Chris Lattner
369d564845 use RAII for ExceptionTimer too 
llvm-svn: 99833
 2010-03-29 20:39:38 +00:00
Chris Lattner
b01fcba466 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
cfd24dc84c 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
66e9b05428 Revert 99772. 
llvm-svn: 99778
 2010-03-28 21:23:37 +00:00
Chris Lattner
24b8a8bebd add a statistic for the # times isel has to backtrack. 
llvm-svn: 99774
 2010-03-28 19:46:56 +00:00
Devang Patel
bb5063a8cd Refactoring. Push DILocation processing in to DwarfDebug from AsmPrinter. 
llvm-svn: 99772
 2010-03-28 18:57:09 +00:00
Chris Lattner
5ad69fe4b6 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
78dc3c322f comply with the wishes of a fixme. 
llvm-svn: 99742
 2010-03-28 05:55:17 +00:00
Chris Lattner
918dd19018 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
3f060e3216 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
bacf4edba3 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
bb65543f01 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
85756c913d 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
3f00f8044f 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
ced10a4468 Return if we changed anything or not. 
llvm-svn: 99695
 2010-03-27 01:22:38 +00:00
Bill Wendling
4b55d4fd59 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
dc6507730a 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
add7caa0f3 Add few missed libcalls and correct names for others. 
llvm-svn: 99656
 2010-03-26 21:32:14 +00:00
Dale Johannesen
5c20ece13a Debug info shouldn't affect kills. 
llvm-svn: 99637
 2010-03-26 19:21:26 +00:00
Evan Cheng
1f419ac4da 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
0b7dd682dd 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
f5c1282ba6 Handle DEBUG_VALUE in this pass. 
llvm-svn: 99573
 2010-03-26 00:02:44 +00:00
Evan Cheng
032f5d7258 Code clean up. 
llvm-svn: 99544
 2010-03-25 19:46:11 +00:00
Chris Lattner
bea905d2e9 fix a valgrind error on copy-constructor-synthesis.cpp, which is caused when 
the custom insertion hook deletes the instruction, then we try to set dead
flags on it.  Neither the code that I added nor the code that was there 
before was safe.

llvm-svn: 99538
 2010-03-25 18:49:10 +00:00
Evan Cheng
ffebd856cb Remove an unused option. 
llvm-svn: 99537
 2010-03-25 18:37:23 +00:00
Devang Patel
5f38bf4c87 Add comment. 
llvm-svn: 99507
 2010-03-25 15:09:44 +00:00
Evan Cheng
8c19404e5c Scheduler assumes SDDbgValue nodes are in source order. That's true currently. But add an assertion to verify it. 
llvm-svn: 99501
 2010-03-25 07:16:57 +00:00