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Author SHA1 Message Date
Evan Cheng
ee1d91a830 Avoid emitting a dbg_value machineinstr that's not going to be inserted into entry block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102581 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-29 01:23:55 +00:00
Evan Cheng
8601a3d4de Frame index can be negative. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102577 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-29 01:13:30 +00:00
Evan Cheng
1deef27b0a Check Reg against zero. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102573 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-29 00:59:34 +00:00
Evan Cheng
6691a8935c - Really preserve dbg_value instructions when the register is spilled. 
- Also, update dbg_value is the value is being re-matted from a frame slot, e.g. fixed slots for arguments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102565 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 23:52:26 +00:00
Devang Patel
f38c6c89f1 tidy up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102558 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 23:24:13 +00:00
Kevin Enderby
9ac7282117 Fixed the word sized Bit Scan Forward/Reverse instructions, they needed the 
Operand size override prefix to be part of their records.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102556 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 23:20:40 +00:00
Evan Cheng
2ad0fcf794 Replace r102368 with code that's less fragile. This creates DBG_VALUE instructions for function arguments early and insert them after instruction selection is done. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102554 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 23:08:54 +00:00
Chris Lattner
c1c4595d1f fix this to work with objdir != srcdir 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102547 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 22:34:35 +00:00
Dale Johannesen
de5996e33a Fix comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102545 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 22:23:46 +00:00
Dale Johannesen
21a9bd91e9 Test for llvm-gcc checkin 102543. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102544 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 22:17:33 +00:00
Bob Wilson
b8485d69c1 Add an option to the Apple-style build to control whether libLTO.dylib should 
be installed.  Disable it by default.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102531 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 21:08:01 +00:00
Jim Grosbach
d100755bab Add sizes non-floating point versions for the eh sjlj intrinsic expansions. 
rdar://7895451



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102526 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 20:33:09 +00:00
Devang Patel
518e21ae8a Update tests. Now DBG_VALUE instruction is created only if alloca corresponding to llvm.dbg.declare is missing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102524 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 20:27:48 +00:00
Chris Lattner
ff33d83322 declare targets with (void) instead of () since this is a C header. 
Patch by Lars R in PR6961.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102523 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 20:24:45 +00:00
Chris Lattner
f3f325b82f fix PR6112 - When globalopt (or any other pass) does RAUW(@G, %G), 
metadata references in non-function-local MDNodes should drop to 
null.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102519 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 20:16:12 +00:00
Evan Cheng
59b3655564 Pretty print DBG_VALUE machine instructions. 
Before:
DBG_VALUE %RSI, 0, !-1; dbg:SimpleRegisterCoalescing.cpp:2707
Now:
DBG_VALUE %RSI, 0, !"this"; dbg:SimpleRegisterCoalescing.cpp:2707


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102518 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 20:03:13 +00:00
Chris Lattner
e87f7bb50e Rework global alignment computation again. Now we do round up 
alignment of globals to the preferred alignment, but only when
there is no section specified on the global (by far the common
case).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102515 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 19:58:07 +00:00
Devang Patel
54fc4d6a48 While lowering dbg_declare, emit DBG_VALUE machine instruction if alloca matching llvm.dbg.declare intrinsic is missing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102513 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 19:27:33 +00:00
Jakob Stoklund Olesen
0fd109963a Recompute kill flags from live intervals after coalescing instead of trying to 
update them. Computing kill flags is notoriously difficult, and the coalescer
would get it wrong sometimes, and it would completely skip physical registers.

Now we simply remove kill flags based on the live intervals after coalescing.
This is a few percent slower, but now we get correct kill flags for physical
registers after coalescing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102510 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 18:28:39 +00:00
Jakob Stoklund Olesen
7261fb2a6f Teach X86FloatingPoint that a register can be killed multiple times by the same 
instruction.

This instruction would crash the pass:

  INLINEASM <es:foo $0 $1>, 9, %FP0<kill>, 9, %FP0<kill>, 14, %EFLAGS<earlyclobber,def,dead>

Now it doesn't.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102509 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 18:28:37 +00:00
Bob Wilson
598f4abdf4 Undo most of my previous whitespace fix. I think I like it better this way 
after all.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102508 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 18:18:36 +00:00
Bob Wilson
d79f0edd62 Fix inconsistent use of HOSTS and TARGETS variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102505 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 18:06:27 +00:00
Bob Wilson
2f6da3de25 Fix whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102504 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 17:50:03 +00:00
Evan Cheng
2bce5f4b56 Enable i16 to i32 promotion by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102493 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 08:30:49 +00:00
Evan Cheng
b3a3d5e858 Try operation promotion only if regular dag combine and target-specific ones failed to do anything. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102492 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 07:10:39 +00:00
Evan Cheng
39cfeecae5 Unbreak the build. Only form shld / shrd after legalization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102488 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 02:25:18 +00:00
Evan Cheng
da3a8a647d Update tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102487 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 01:53:13 +00:00
Devang Patel
28ff35d030 Emit debug info for byval parameters. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102486 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 01:39:28 +00:00
Evan Cheng
8b1190a540 Rather than having a ton of patterns for double shift instructions, e.g. SHLD16rrCL, just perform custom dag combine to form x86 specific dag so they match to the same pattern. This also makes sure later dag combine do not cause isel to miss them (e.g. promoting i16 to i32). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102485 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 01:18:01 +00:00
Chris Lattner
a7b611c10d further simplify EmitAlignment by eliminating the 
ForcedAlignBits argument, tweaking the single client of it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102484 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 01:08:40 +00:00
Chris Lattner
755824756c remove a dead argument to EmitAlignment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102483 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 01:06:02 +00:00
Chris Lattner
059ea138a6 remove some default arguments to EmitAlignment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102482 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 01:05:45 +00:00
Devang Patel
a43098d388 Refactor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102481 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 01:03:09 +00:00
Dan Gohman
34b3d993e4 Rewrite the section on trap values to contain a generic description 
of dependence and define trap values in terms of dependence, instead
of trying to cover the concept with a flurry of ad-hoc rules.

The dependence model isn't complete yet, but it's already much more
rigorous than the description it replaces.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102479 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 00:49:41 +00:00
Dan Gohman
1c70c00c28 Fix spelling errors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102478 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 00:36:01 +00:00
Stuart Hastings
5a6a65be46 Tweak x86 INC/DEC generation to look for CopyToReg or SETCC. Radar 7866163. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102477 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 00:35:10 +00:00
Chris Lattner
2d4b8ee1d9 further clarify alignment of globals, fix instcombine 
to not increase the alignment of globals with an assigned
alignment and section.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102476 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 00:31:12 +00:00
Chris Lattner
ce99fa9e26 improve the global variable alignment description. 
it is not generally valid for targets to overalign
them when an alignment is specified.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102474 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 00:13:42 +00:00
Devang Patel
a00adba6a7 Use MachineOperand::is* predicates. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102472 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-27 22:24:37 +00:00
Devang Patel
97303ee27d Use isReg(), isImm() and isFPImm(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102470 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-27 22:04:41 +00:00
Devang Patel
dcde3db38e Check operand type first. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102468 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-27 21:49:04 +00:00
Evan Cheng
1c45acf510 Fix obvious typos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102467 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-27 21:46:03 +00:00
Devang Patel
0f9d952542 Ignore DBG_VALUE instructions that points to undef values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102463 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-27 20:54:45 +00:00
Evan Cheng
b3716e3e28 SRA promotion is also not free. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102456 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-27 19:48:31 +00:00
Evan Cheng
ac7eae5b89 - When legal, promote a load to zextload rather than ext load. 
- Catch more further dag combine opportunities as result of operand promotion, e.g. (i32 anyext (i16 trunc (i32 x))) -> (i32 x)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102455 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-27 19:48:13 +00:00
Devang Patel
eac9c07fde Identify when a lexical scope is split in to multiple instruction ranges. Emit such ranges using DW_AT_ranges. 
This patch fixes bug (PR6894) introduced by previous version of this patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102454 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-27 19:46:33 +00:00
Evan Cheng
ed33b13a10 Do not count kill, implicit_def instructions as printed instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102453 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-27 19:38:45 +00:00
Chris Lattner
4c4d0c0cc5 round zero-byte .zerofill directives up to 1 byte. This 
should fix some "g++.dg-struct-layout-1" failures, 
rdar://7886017


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102421 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-27 07:41:44 +00:00
Chris Lattner
77640feed7 fix wordo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102418 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-27 07:28:11 +00:00
Chris Lattner
de076819e4 remove some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102417 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-27 06:57:10 +00:00