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Author SHA1 Message Date
Chris Lattner
5979dfff8e reduce nesting and code duplication in AsmPrinter::EmitGlobalConstantLargeInt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93292 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 04:38:16 +00:00
Chris Lattner
3cc3a00570 reduce indentation and add a fast-path to EmitGlobalConstant for 8-byte 
integers on 64-bit systems.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93291 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 04:34:19 +00:00
Chris Lattner
fe0e7ed6b0 reduce indentation and use early exits in AsmPrinter::EmitConstantValueOnly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93290 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 04:29:19 +00:00
Victor Hernandez
3047384a0f Revert 93270 pending investigation of how stray non-constant values end up in ValueEnumerator's ValueList during WriteConstants() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93289 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 03:18:30 +00:00
Evan Cheng
262a96edb4 Disable opt-ext pass to unbreak the build for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93286 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 01:51:43 +00:00
Evan Cheng
d9e385f411 Remove debug option I accidentally left in. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93285 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 01:43:20 +00:00
Dale Johannesen
c49a10aca1 Fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93284 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 01:39:38 +00:00
Ted Kremenek
ce3ad1565a Update CMake file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93283 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 01:02:47 +00:00
Jakob Stoklund Olesen
c5b7ef1519 Remove the JustSP single-register regclass. 
It was only being used by instructions with the t_addrmode_sp addressing mode,
and that is pattern matched in a way that guarantees SP is used. There is
never any register allocation done from this class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93280 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 00:43:06 +00:00
Jeffrey Yasskin
3aba5b1d60 Try to fix the ARM and PPC buildbots. The -mattr=vector-unaligned-mem 
flag doesn't exist there, and this is an x86 test.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93279 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 00:31:43 +00:00
Evan Cheng
7da9ecf967 Add a quick pass to optimize sign / zero extension instructions. For targets where the pre-extension values are available in the subreg of the result of the extension, replace the uses of the pre-extension value with the result + extract_subreg. 
For now, this pass is fairly conservative. It only perform the replacement when both the pre- and post- extension values are used in the block. It will miss cases where the post-extension values are live, but not used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93278 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 00:30:23 +00:00
Dale Johannesen
5f72a5ebc8 Further progration of metadata operands. The 
dumper doesn't really do what I want yet, but
at least it doesn't crash now.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93272 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 00:00:24 +00:00
Victor Hernandez
994a204570 Make WriteConstants() more robust against stray values in ValueEnumerator's ValueList 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93270 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 23:37:59 +00:00
Bob Wilson
86af655521 Fix a comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93261 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 22:18:56 +00:00
Chris Lattner
acb4722856 use consistent tag kinds for ilist_traits 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93259 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 22:00:04 +00:00
Chris Lattner
972a46c96a 1) Use the new SimplifyInstructionsInBlock routine instead of the copy 
in JT.

2) When cloning blocks for PHI or xor conditions, use
instsimplify to simplify the code as we go.  This allows us to 
squish common cases early in JT which opens up opportunities for
subsequent iterations, and allows it to completely simplify the
testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93253 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 20:41:47 +00:00
Chris Lattner
e234a30a28 add a helper function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93251 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 19:40:54 +00:00
Devang Patel
d77fdba573 Use Twine, instead of StringRef, for consistency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93249 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 18:57:56 +00:00
Devang Patel
26028f27dd Use ilist_tratis to autoinsert and remove NamedMDNode from MDSymbolTable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93247 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 18:34:06 +00:00
Evan Cheng
3bda20112e Eliminate or_not_add and just use AddedComplexity so isel tries or_is_add patterns first. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93245 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 18:31:19 +00:00
Evan Cheng
d9d3a894b3 Add nounwind. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93244 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 18:29:23 +00:00
Duncan Sands
796248fdb1 Revert commit 93204, since it causes the assembler to barf 
on x86-64 linux with messages like this:
Error: Incorrect register `%r14' used with `l' suffix


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93242 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 17:46:16 +00:00
Duncan Sands
990c4b87e3 Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93235 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 08:30:46 +00:00
Duncan Sands
e2de606e0b Tweak commit 91745, which changed target data for both Mingw and Cygwin, 
to not touch Cygwin: the change caused llvm-gcc build failures due to
long double getting the wrong size.  Patch by Aaron Gray.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93234 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 08:21:07 +00:00
Dan Gohman
ad4f7a6882 Make several tests less fragile. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93230 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 04:52:47 +00:00
Dan Gohman
f1b4d26e67 Reapply the MOV64r0 patch, with a fix: MOV64r0 clobbers EFLAGS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93229 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 04:42:54 +00:00
Dan Gohman
21c14e3649 Update a partially obsolete comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93228 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 04:32:35 +00:00
Dan Gohman
5c9cf19d1e Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93227 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 04:30:26 +00:00
Chris Lattner
797c440caf tidy up 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93222 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 02:07:50 +00:00
Chris Lattner
2249a0b1bd Teach jump threading to duplicate small blocks when the branch 
condition is a xor with a phi node.  This eliminates nonsense
like this from 176.gcc in several places:

 LBB166_84:
        testl   %eax, %eax
-       setne   %al
-       xorb    %cl, %al
-       notb    %al
-       testb   $1, %al
-       je      LBB166_85
+       je      LBB166_69
+       jmp     LBB166_85

This is rdar://7391699



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93221 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 02:07:17 +00:00
Dale Johannesen
68c3def126 Add MO_Metadata as an operand kind. Not used yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93220 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 02:01:53 +00:00
Evan Cheng
a5a81d7072 Add TargetInstrInfo::isCoalescableInstr. It returns true if the specified 
instruction is copy like where the source and destination registers can
overlap. This is to be used by the coalescable to coalesce the source and
destination registers of instructions like X86::MOVSX64rr32. Apparently
some crazy people believe the coalescer is too simple.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93210 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 00:09:37 +00:00
Chris Lattner
77beb479f5 some cleanup, and make it obvious that ProcessJumpOnPHI only works 
on branches by renaming it and checking for a branch at the call site.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93208 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 23:41:09 +00:00
Chris Lattner
8c2143fce9 disable this testcase, PR5997 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93206 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 23:18:33 +00:00
Evan Cheng
b85071c736 Add manual ISD::OR fastisel selection routines. TableGen is no longer autogen them after 93152 and 93191. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93204 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 22:59:27 +00:00
Victor Hernandez
67a1a54195 Add documentation for llvm.dbg.value intrinsic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93203 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 22:53:48 +00:00
Chris Lattner
53af2d13e7 reenable the piece that turns trunc(zext(x)) -> x even if zext has multiple uses, 
codegen has no apparent problem with the trunc version of this, because it turns
into a simple subreg idiom


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93202 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 22:49:40 +00:00
Chris Lattner
a958cbfe36 Disable folding sext(trunc(x)) -> x (and other similar cast/cast cases) when the 
trunc has multiple uses.  Codegen is not able to coalesce the subreg case 
correctly and so this leads to higher register pressure and spilling (see PR5997).

This speeds up 256.bzip2 from 8.60 -> 8.04s on my machine, ~7%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93200 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 22:45:25 +00:00
Victor Hernandez
92f238dd8f Consolidate ConvertGlobalValIDToValue, ConvertGlobalOrMetadataValIDToValue, and ConvertValIDToValue into a more powerful ConvertValIDToValue() that does all three's work 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93197 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 22:31:58 +00:00
Tobias Grosser
d53e42efe9 Remove trailing white spaces in post dominators header file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93195 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 22:22:46 +00:00
Tobias Grosser
af4421d6ef Add getNode() to post dominators. 
Implement the same interface as already available for dominators.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93194 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 22:22:32 +00:00
Evan Cheng
199c4240fe Extend r93152 to work on OR r, r. If the source set bits are known not to overlap, then select as an ADD instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93191 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 22:03:29 +00:00
Chris Lattner
c31b0fc31f reduce this to a sensible testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93189 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 21:58:19 +00:00
David Greene
67df1a1d64 Shorten up this testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93187 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 21:50:35 +00:00
Evan Cheng
05920b8146 Revert 93158. It's breaking quite a few x86_64 tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93185 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 21:13:41 +00:00
Jakob Stoklund Olesen
dd437ba15e Avoid adding PHI arguments for a predecessor that has gone away when a BRCOND was constant folded. 
This fixes PR5980.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93184 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 21:02:33 +00:00
Benjamin Kramer
7dd6107fcc Remove unused string functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93183 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 20:33:12 +00:00
Evan Cheng
ac000fa0ed Do not turn 8-bit OR to ADD since ADD8ri is not 3-addressfiable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93182 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 20:18:04 +00:00
Mon P Wang
fe240b1066 Disable transformation of select of two loads to a select of address and then a load if the 
loads are not in the default address space because the transformation discards src value info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93180 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 20:12:49 +00:00
Benjamin Kramer
7462b5dd99 Add StrInStrNoCase, a StringRef version of CStrInCStrNoCase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93174 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 19:45:18 +00:00