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Author SHA1 Message Date
Dale Johannesen
c08669561e Make the implicit inputs and outputs of target-independent 
ADDC/ADDE use MVT::i1 (later, whatever it gets legalized to)
instead of MVT::Flag.  Remove CARRY_FALSE in favor of 0; adjust
all target-independent code to use this format.

Most targets will still produce a Flag-setting target-dependent
version when selection is done.  X86 is converted to use i32
instead, which means TableGen needs to produce different code
in xxxGenDAGISel.inc.  This keys off the new supportsHasI1 bit
in xxxInstrInfo, currently set only for X86; in principle this
is temporary and should go away when all other targets have
been converted.  All relevant X86 instruction patterns are
modified to represent setting and using EFLAGS explicitly.  The
same can be done on other targets.

The immediate behavior change is that an ADC/ADD pair are no
longer tightly coupled in the X86 scheduler; they can be
separated by instructions that don't clobber the flags (MOV).
I will soon add some peephole optimizations based on using
other instructions that set the flags to feed into ADC.

llvm-svn: 72707
 2009-06-01 23:27:20 +00:00
Dale Johannesen
548149ef8d Comment grammaro/clarification. 
llvm-svn: 72706
 2009-06-01 23:13:42 +00:00
Dale Johannesen
4ad4ae870b Trailing whitespace. 
llvm-svn: 72705
 2009-06-01 23:12:52 +00:00
Mike Stump
f39ed4d4f9 Dcoument that the opauque value used to construct QNaNs is truncated 
as necessary.

llvm-svn: 72702
 2009-06-01 21:02:35 +00:00
Nick Kledzik
3486856fd9 <rdar://problem/6927148> libLTO needs to handle i386 magic objc class symbols 
Parse __OBJC data structures and synthesize magic .objc_ symbols.
Also, alter mangler so that objc method names are readable.

llvm-svn: 72700
 2009-06-01 20:33:09 +00:00
Bill Wendling
c77c8e5f6e Accidental commit. This isn't ready for prime time just yet. 
llvm-svn: 72699
 2009-06-01 20:18:46 +00:00
Anton Korobeynikov
e7e9118514 Implement review feedback. Make thumb2 'normal' subtarget feature 
llvm-svn: 72698
 2009-06-01 20:00:48 +00:00
Bruno Cardoso Lopes
7765059062 Fix new CodeEmitter stuff to follow LLVM codying style. Patch by Aaron Gray 
llvm-svn: 72697
 2009-06-01 19:57:37 +00:00
Anton Korobeynikov
f6ec078b26 Do not emit "generic" CPU string. This fixes PR4291. 
llvm-svn: 72696
 2009-06-01 19:03:17 +00:00
Eli Friedman
2b0edc3327 PR4286: Make RewriteLoadUserOfWholeAlloca and 
RewriteStoreUserOfWholeAlloca deal with tail padding because 
isSafeUseOfBitCastedAllocation expects them to.  Otherwise, we crash 
trying to erase the bitcast.

llvm-svn: 72688
 2009-06-01 09:14:32 +00:00
Nick Lewycky
1ca5bb9869 Update the bitcode reader to support reading .bc files where the embedded 
metadata references non-Constant values such as instructions.

llvm-svn: 72685
 2009-06-01 04:42:10 +00:00
Nick Lewycky
8e4eb22f45 Add missing codenames to the .bc analyzer. 
llvm-svn: 72684
 2009-06-01 04:41:03 +00:00
Dan Gohman
b38d9b6a57 Fix a grammaro and clarify a comment. 
llvm-svn: 72668
 2009-05-31 17:52:18 +00:00
Dan Gohman
0e4b3c0955 Delete an obsolete sentance from a comment. 
llvm-svn: 72667
 2009-05-31 16:18:57 +00:00
Dan Gohman
76f405a65f Fix the name of the function in this comment. 
llvm-svn: 72666
 2009-05-31 16:18:03 +00:00
Owen Anderson
928040c625 Be more aggressive in doing LoadPRE by tracing backwards when a block only has 
a single predecessor.

Patch by Jakub Staszak.

llvm-svn: 72661
 2009-05-31 09:03:40 +00:00
Nick Lewycky
d26b226f47 Fix typo in error message. 
llvm-svn: 72659
 2009-05-31 06:07:28 +00:00
Duncan Sands
222fbd50d9 Rename CustomLowerResults to CustomLowerNode, since 
it is used both when a result is illegal and when an
operand is illegal.

llvm-svn: 72658
 2009-05-31 04:15:38 +00:00
Bruno Cardoso Lopes
aba334e40e Use uint8_t and int32_t in {JIT,Machine}CodeEmiters 
llvm-svn: 72650
 2009-05-30 23:50:33 +00:00
Bruno Cardoso Lopes
d9c92b3825 Add AMD64 elf machine type 
llvm-svn: 72635
 2009-05-30 21:05:47 +00:00
Bruno Cardoso Lopes
4da7e7af43 First patch in the direction of splitting MachineCodeEmitter in two subclasses: 
JITCodeEmitter and ObjectCodeEmitter. No functional changes yet. Patch by Aaron Gray

llvm-svn: 72631
 2009-05-30 20:51:52 +00:00
Chris Lattner
8ac63163fe fix PR4284, a bug in simplifylibcalls handling memcmp. Patch by 
Benjamin Kramer!

llvm-svn: 72625
 2009-05-30 18:43:04 +00:00
Nick Lewycky
b7afbf8a63 Metadata uses metadata type not empty struct. 
llvm-svn: 72623
 2009-05-30 16:08:30 +00:00
Mike Stump
72e70811c8 Add some documentation. 
llvm-svn: 72622
 2009-05-30 15:19:29 +00:00
Duncan Sands
3d77d1fcfc Adjust these tests now that "extern inline" 
functions are being output with bodies and
available_externally linkage.

llvm-svn: 72620
 2009-05-30 13:57:05 +00:00
Evan Cheng
2d198e1bc2 (i64 (zext (srl GR32 8))) -> movzbl AH is not safe since srl 8 only clear the top 8 bits. 
llvm-svn: 72618
 2009-05-30 08:43:27 +00:00
Nick Lewycky
a9de2f1c81 Give embedded metadata its own type instead of relying on EmptyStructTy. 
llvm-svn: 72610
 2009-05-30 05:06:04 +00:00
Mike Stump
5447116cbb Add support for letting the client choose different flavors of NaNs. Testcase to be 
added in clang.

llvm-svn: 72606
 2009-05-30 03:49:43 +00:00
Bill Wendling
8235a05c1a Untabification. 
llvm-svn: 72604
 2009-05-30 01:09:53 +00:00
Bill Wendling
d50f27458f Untabify. 
llvm-svn: 72603
 2009-05-30 00:58:37 +00:00
Evan Cheng
d3943e6171 Untabify. 
llvm-svn: 72600
 2009-05-30 00:48:34 +00:00
Anton Korobeynikov
4f5b1ef545 Add placeholder for thumb2 stuff 
llvm-svn: 72593
 2009-05-29 23:41:08 +00:00
Bill Wendling
f26f8a579e Enable GVN Load PRE. 
llvm-svn: 72589
 2009-05-29 20:38:16 +00:00
Duncan Sands
f4fe76d46b Dan noticed that the verifier wasn't thoroughly checking uses of 
invoke results (see the testcases).  Tighten up the checking.

llvm-svn: 72586
 2009-05-29 19:39:36 +00:00
Bruno Cardoso Lopes
6ec3c6fab6 Fix some typos 
llvm-svn: 72579
 2009-05-29 17:08:57 +00:00
Torok Edwin
845fc92978 just show the instruction, its not that slow. 
llvm-svn: 72577
 2009-05-29 16:58:36 +00:00
Torok Edwin
a4ebdef3e8 for instructions with void type we have no choice but print the instruction as 
is, otherwise we get a <badref>.

llvm-svn: 72567
 2009-05-29 10:28:44 +00:00
Torok Edwin
4a228edc3a Add a DEBUG() output to GVN that prints the instruction clobbering a load. 
This is useful when trying to figure out why GVN didn't eliminate redundant
loads.

llvm-svn: 72565
 2009-05-29 09:46:03 +00:00
Owen Anderson
09c469ec35 Fix an issue where phiMap was not being updated properly when doing load PRE. 
Diagnosis and patch thanks to Jakub Staszak.

llvm-svn: 72562
 2009-05-29 05:37:54 +00:00
Evan Cheng
f911a0825b Default isNarrowingProfitable to false. 
llvm-svn: 72561
 2009-05-29 05:31:40 +00:00
Evan Cheng
57f85a1529 Remove an accidental commit. 
llvm-svn: 72560
 2009-05-29 05:28:52 +00:00
Evan Cheng
550fc9ba9f More h-registers tricks: folding zext nodes. 
llvm-svn: 72558
 2009-05-29 01:44:43 +00:00
Evan Cheng
a36a15ff66 Do not try to create a MVT type of width 0. 
llvm-svn: 72557
 2009-05-28 23:52:18 +00:00
Bill Wendling
dd6cbdb28c The MONITOR and MWAIT instructions have insufficient information for 
decoding. Essentially, they both map to the same column in the "opcode
extensions for one- and two-byte opcodes" table in the x86 manual. The RawFrm
complicates decoding this.

Instead, use opcode 0x01, prefix 0x01, and form MRM1r. Then have the code
emitter special case these, a la [SML]FENCE.

llvm-svn: 72556
 2009-05-28 23:40:46 +00:00
Daniel Dunbar
d70415d602 NewNightlyTest.pl: Add a -parallel-jobs argument (set # of jobs for make with 
-parallel, instead of always using 2).

llvm-svn: 72551
 2009-05-28 22:45:24 +00:00
Eli Friedman
5a376ed43e Add explicit test for PR4280. 
llvm-svn: 72539
 2009-05-28 21:04:35 +00:00
Eli Friedman
847816ce19 Re-commit r72514 and r72516 with a fixed version of BR_CC lowering. 
This patch removes some special cases for opcodes and does a bit of 
cleanup.

llvm-svn: 72536
 2009-05-28 20:40:34 +00:00
Evan Cheng
3d35b7e54c Fix MOVMSKPDrr encoding. 
llvm-svn: 72535
 2009-05-28 18:55:28 +00:00
Evan Cheng
99643b717c Fix PSIGND encoding bug. Patch by Sean Callanan. 
llvm-svn: 72534
 2009-05-28 18:48:53 +00:00
Evan Cheng
30cec6ac75 Incorporate patch feedbacks. 
llvm-svn: 72533
 2009-05-28 18:41:02 +00:00