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Author SHA1 Message Date
David Greene
2800eb1d30 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92524 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 22:33:16 +00:00
Daniel Dunbar
5ddcd6be8f tblgen/OptParser: Use EmitSourceFileHeader. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92521 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 22:03:51 +00:00
David Greene
083b7ffb4d Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92520 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 22:02:01 +00:00
Douglas Gregor
f1c3a8650a Fix CMake build for InstCombine changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92519 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 21:58:55 +00:00
David Greene
cc54c7caa4 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92518 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 21:48:34 +00:00
David Greene
aba28d1273 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92516 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 21:35:15 +00:00
David Greene
73242dd692 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92515 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 21:26:07 +00:00
Dan Gohman
c12e979790 Make this test more portable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92514 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 21:23:34 +00:00
Evan Cheng
760d1945bc Perform this folding as a target specific dag combine: 
(or (x << c) | (y >> (64 - c))) ==> (shld64 x, y, c)

The isel patterns may not catch all the cases if general dag combine has reduced width of source operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92513 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 21:22:48 +00:00
Dan Gohman
f2d7fb3eac Use a pointer type rather than MVT::Other for the ExternalSymbol node used 
in an inline asm.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92512 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 21:00:54 +00:00
Dan Gohman
3c02c22ef9 Remove some README.txt entries which are now implemented. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92511 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 20:55:05 +00:00
Devang Patel
44c92e5826 Remove oversimplified test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92510 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 20:54:06 +00:00
Dan Gohman
b75e8642a6 Add some tests and update an existing test to reflect recent 
x86 isel peeps.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92509 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 20:53:54 +00:00
Dan Gohman
3cc4a307a8 A use by operand 1 or 2 of a SELECT is not a FLAGS use. This 
lets the test-elimination work in more conditional-move cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92508 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 20:52:50 +00:00
Dan Gohman
9ef51c8011 Flags-producing add, and, or, etc. have the same profibility 
rules as normal add, and, or, etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92507 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 20:51:50 +00:00
Dan Gohman
43ffe6769a Add SDNPCommutative and SDNPAssociative to several X86 target nodes. 
This lets isel fold loads into them in more cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92506 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 20:51:05 +00:00
Devang Patel
344130e8ab Fix begin and end markers for nested scopes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92505 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 20:44:00 +00:00
Dan Gohman
ba7a662f54 Replace some special-case code which probably was buggy with an assertion 
verifying that the special case does not occur.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92504 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 20:36:57 +00:00
Dan Gohman
537ab90d8d Remove the CPAttrParentAsRoot code, which is unused, and inconvenient 
for a refactoring I'm working on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92503 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 20:31:55 +00:00
David Greene
6e120a1c70 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92502 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 19:57:26 +00:00
Devang Patel
9f5c510df1 The test, derived from optimzed IR, does not mention "bar" in debug info anywhere so the dwarf writer is not expected to emit any debug info for function "bar". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92499 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 19:41:13 +00:00
David Greene
5957c9b8aa Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92498 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 19:36:42 +00:00
David Greene
26045e25bf Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92496 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 19:10:20 +00:00
Chris Lattner
d7f5a58890 Truncate GEP indexes larger than the pointer size down to pointer size 
when doing this transform if the GEP is not inbounds.  No testcase because
it is very difficult to trigger this: instcombine already canonicalizes
GEP indices to pointer size, so it relies specific permutations of the
instcombine worklist.

Thanks to Duncan for pointing this possible problem out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92495 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 18:57:15 +00:00
Chris Lattner
0cb1e9edd5 silence a bogus 'might be used uninit' warning from GCC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92494 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 18:48:26 +00:00
Dan Gohman
7ba4e17285 Add a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92492 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 18:38:39 +00:00
David Greene
89d6a24262 Change errs() to dbgs(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92490 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 17:47:05 +00:00
Anton Korobeynikov
39784e158a Fix invalid chain folding for memory variant of sdiv / udiv 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92472 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 10:31:54 +00:00
Chris Lattner
f3d1b5dd68 move some more cast-related stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92471 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 07:59:07 +00:00
Mikhail Glushenkov
ed5cb593ef 80-col violations, trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92470 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 07:55:25 +00:00
Chris Lattner
5f0290e0ef move the [Can]EvaluateInDifferentType functions out to InstCombineCasts.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92469 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 07:54:59 +00:00
Chris Lattner
80f43d339f split 943 lines of instcombine out to a new InstCombineCasts.cpp 
file.  InstructionCombining.cpp is now down to a svelte 9300 lines :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92468 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 07:53:58 +00:00
Chris Lattner
02446fc99a split instcombine of compares (visit[FI]Cmp) out to 
a new InstCombineCompares.cpp file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92467 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 07:37:31 +00:00
Chris Lattner
a766e19705 update cmakefile 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92466 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 07:19:55 +00:00
Chris Lattner
e0b4b721aa move the 'SimplifyDemandedFoo' methods out to their own file, cutting 1K lines out of instcombine.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92465 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 07:17:19 +00:00
Mikhail Glushenkov
710632d07b Fix the Emacs mode string. 
Also trailing whitespace & 80-col violations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92464 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 07:16:12 +00:00
Chris Lattner
ac8f2fd2e2 split the instcombine class definition out to a header shared 
among the instcombine library.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92463 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 07:12:23 +00:00
Chris Lattner
4de84762bd remove a ton of unneeded LLVMContext stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92462 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 07:02:48 +00:00
Chris Lattner
3df5c6fff1 move InstCombineWorklist out to its own header. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92461 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 06:30:00 +00:00
Chris Lattner
ce6daa4c58 forgot to svn add these. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92460 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 06:28:20 +00:00
Chris Lattner
dffbef0d76 move instcombine to its own library, it's past time. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92459 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 06:23:24 +00:00
Chris Lattner
e4412c1f0b implement an instcombine xform needed by clang's codegen 
on the example in PR4216.  This doesn't trigger in the testsuite,
so I'd really appreciate someone scrutinizing the logic for
correctness.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92458 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 06:03:59 +00:00
Chris Lattner
d0592d3be6 fix PR5930, allowing the asmprinter to emit difference between 
two labels as a truncate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92455 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-03 18:33:18 +00:00
Chris Lattner
fa5dd977e4 it isn't safe to speculative load from a malloc, it might have 
returned null, and may not have been big enough in any case.  
Thanks to Jay Foad for pointing this out!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92452 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-03 18:14:24 +00:00
Chris Lattner
2ef90d782e add PR# 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92451 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-03 18:10:58 +00:00
Chris Lattner
5099b31f98 differences between two blockaddress's don't cause a 
global variable initializer to require relocations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92450 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-03 18:09:40 +00:00
Chris Lattner
a0085af871 pull my debug hooks out, I'm done with this xform for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92446 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-03 06:58:48 +00:00
Nick Lewycky
cccbe7e415 Small cleanups, refactor some duplicated code into a single method. No 
functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92445 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-03 04:39:07 +00:00
Chris Lattner
56ba7a74b9 generalize the previous transformation to handle indexing into 
arrays of structs and other arrays, so long as all the subsequent
indexes are constants.  This triggers frequently for stuff like:

@divisions = internal constant [29 x [2 x i32]] [[2 x i32] zeroinitializer, [2 x i32] [i32 0, i32 1], [2 x i32] [i32 0, i32 2], [2 x i32] [i32 0, i32 1], [2 x i32] zeroinitializer, [2 x i32] [i32 0, i32 1], [2 x i32] [i32 0, i32 1], [2 x i32] [i32 0, i32 2], [2 x i32] [i32 0, i32 2], [2 x i32] zeroinitializer, [2 x i32] zeroinitializer, [2 x i32] zeroinitializer, [2 x i32] [i32 0, i32 2], [2 x i32] [i32 0, i32 1], [2 x i32] zeroinitializer, [2 x i32] [i32 1, i32 0], [2 x i32] [i32 1, i32 1], [2 x i32] [i32 1, i32 1], [2 x i32] [i32 1, i32 2], [2 x i32] [i32 1, i32 1], [2 x i32] [i32 1, i32 0], [2 x i32] [i32 1, i32 2], [2 x i32] [i32 1, i32 2], [2 x i32] [i32 1, i32 0], [2 x i32] [i32 1, i32 0], [2 x i32] [i32 1, i32 0], [2 x i32] [i32 1, i32 1], [2 x i32] [i32 1, i32 2], [2 x i32] [i32 1, i32 2]], align 32 ; <[29 x [2 x i32]]*> [#uses=50]

	  %623 = getelementptr inbounds [29 x [2 x i32]]* @divisions, i64 0, i64 %619, i64 0 ; <i32*> [#uses=1]
	   %684 = icmp eq i32 %683, 999 

also for the "my_defs" table in 'gs', etc.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92444 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-03 03:03:27 +00:00
Nick Lewycky
11ed0317bc Cleanup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92436 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-03 00:55:31 +00:00