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6197 Commits

Author SHA1 Message Date
David Greene 9fcfd96da9 Change errs() to dbgs(). 
llvm-svn: 92631
 2010-01-05 01:28:07 +00:00
David Greene 44cb8ade45 Change errs() to dbgs(). 
llvm-svn: 92629
 2010-01-05 01:28:05 +00:00
David Greene 8306b60d56 Change errs() to dbgs(). 
llvm-svn: 92627
 2010-01-05 01:27:54 +00:00
David Greene 0122fc495d Change errs() to dbgs(). 
llvm-svn: 92625
 2010-01-05 01:27:51 +00:00
David Greene 241992382e Change errs() to dbgs(). 
llvm-svn: 92624
 2010-01-05 01:27:47 +00:00
David Greene e0b9789593 Change errs() to dbgs(). 
llvm-svn: 92623
 2010-01-05 01:27:44 +00:00
David Greene 6bc0776343 Change errs() to dbgs(). 
llvm-svn: 92622
 2010-01-05 01:27:39 +00:00
David Greene 3a79df0993 Change errs() to dbgs(). 
llvm-svn: 92620
 2010-01-05 01:27:33 +00:00
David Greene 0fd862254e Change errs() to dbgs(). 
llvm-svn: 92619
 2010-01-05 01:27:30 +00:00
David Greene d17c3916d0 Change errs() to dbgs(). 
llvm-svn: 92617
 2010-01-05 01:27:24 +00:00
David Greene 9ddc6e2e12 Change errs() to dbgs(). 
llvm-svn: 92615
 2010-01-05 01:27:21 +00:00
David Greene 1efdb45562 Change errs() to dbgs(). 
llvm-svn: 92614
 2010-01-05 01:27:19 +00:00
David Greene 2e6efc441f Change errs() to dbgs(). 
llvm-svn: 92613
 2010-01-05 01:27:17 +00:00
David Greene 389fc3b9f6 Change errs() to dbgs(). 
llvm-svn: 92612
 2010-01-05 01:27:15 +00:00
David Greene 74e2d4917d Change errs() to dbgs(). 
llvm-svn: 92611
 2010-01-05 01:27:11 +00:00
David Greene 48c86bedbd Change errs() to dbgs(). 
llvm-svn: 92610
 2010-01-05 01:27:09 +00:00
David Greene 0dd384cfd0 Change errs() to dbgs(). 
llvm-svn: 92609
 2010-01-05 01:27:06 +00:00
David Greene d9c355d590 Change errs() to dbgs(). 
llvm-svn: 92608
 2010-01-05 01:27:04 +00:00
David Greene b72ad95ecf Change errs() to dbgs(). 
llvm-svn: 92607
 2010-01-05 01:27:01 +00:00
David Greene 084b0dde9d Change errs() to dbgs(). 
llvm-svn: 92606
 2010-01-05 01:26:57 +00:00
David Greene 76a4e852f8 Change errs() to dbgs(). 
llvm-svn: 92605
 2010-01-05 01:26:54 +00:00
David Greene 725c7c3f2e Change errs() to dbgs(). 
llvm-svn: 92604
 2010-01-05 01:26:52 +00:00
David Greene 3774a38fdf Change errs() to dbgs(). 
llvm-svn: 92603
 2010-01-05 01:26:49 +00:00
David Greene 50c54238e4 Change errs() to dbgs(). 
llvm-svn: 92602
 2010-01-05 01:26:45 +00:00
David Greene 0ad6dce031 Change errs() to dbgs(). 
llvm-svn: 92601
 2010-01-05 01:26:44 +00:00
David Greene 627f40a9f2 Change errs() to dbgs(). 
llvm-svn: 92600
 2010-01-05 01:26:41 +00:00
David Greene a8a32dd987 Change errs() to dbgs(). 
llvm-svn: 92599
 2010-01-05 01:26:39 +00:00
Devang Patel be94f23992 Remove dead debug info intrinsics. 
Intrinsic::dbg_stoppoint
 Intrinsic::dbg_region_start 
 Intrinsic::dbg_region_end 
 Intrinsic::dbg_func_start
AutoUpgrade simply ignores these intrinsics now.

llvm-svn: 92557
 2010-01-05 01:10:40 +00:00
Daniel Dunbar 72a87448c1 Fix some struct/class specifier mismatches. 
llvm-svn: 92550
 2010-01-05 00:15:58 +00:00
Chris Lattner a751d09c08 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.

llvm-svn: 92495
 2010-01-04 18:57:15 +00:00
Chris Lattner 2cb08e69b1 silence a bogus 'might be used uninit' warning from GCC. 
llvm-svn: 92494
 2010-01-04 18:48:26 +00:00
Chris Lattner 59d95743c8 move some more cast-related stuff 
llvm-svn: 92471
 2010-01-04 07:59:07 +00:00
Mikhail Glushenkov 6a8ac8ce8f 80-col violations, trailing whitespace. 
llvm-svn: 92470
 2010-01-04 07:55:25 +00:00
Chris Lattner 92be2adba6 move the [Can]EvaluateInDifferentType functions out to InstCombineCasts.cpp 
llvm-svn: 92469
 2010-01-04 07:54:59 +00:00
Chris Lattner 2b295a0eba split 943 lines of instcombine out to a new InstCombineCasts.cpp 
file.  InstructionCombining.cpp is now down to a svelte 9300 lines :)

llvm-svn: 92468
 2010-01-04 07:53:58 +00:00
Chris Lattner 2188e40e4c split instcombine of compares (visit[FI]Cmp) out to 
a new InstCombineCompares.cpp file.

llvm-svn: 92467
 2010-01-04 07:37:31 +00:00
Chris Lattner 6ea40f1542 update cmakefile 
llvm-svn: 92466
 2010-01-04 07:19:55 +00:00
Chris Lattner 7e0449172c move the 'SimplifyDemandedFoo' methods out to their own file, cutting 1K lines out of instcombine.cpp 
llvm-svn: 92465
 2010-01-04 07:17:19 +00:00
Chris Lattner 35522b7465 split the instcombine class definition out to a header shared 
among the instcombine library.

llvm-svn: 92463
 2010-01-04 07:12:23 +00:00
Chris Lattner b8906bda13 remove a ton of unneeded LLVMContext stuff. 
llvm-svn: 92462
 2010-01-04 07:02:48 +00:00
Chris Lattner 66c2e54bcd move InstCombineWorklist out to its own header. 
llvm-svn: 92461
 2010-01-04 06:30:00 +00:00
Chris Lattner e2b9da98b0 forgot to svn add these. 
llvm-svn: 92460
 2010-01-04 06:28:20 +00:00
Chris Lattner c0e6640d3a move instcombine to its own library, it's past time. 
llvm-svn: 92459
 2010-01-04 06:23:24 +00:00
Chris Lattner 2d91231d82 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.

llvm-svn: 92458
 2010-01-04 06:03:59 +00:00
Chris Lattner 48218e42cd pull my debug hooks out, I'm done with this xform for now. 
llvm-svn: 92446
 2010-01-03 06:58:48 +00:00
Nick Lewycky 475d3d1215 Small cleanups, refactor some duplicated code into a single method. No 
functionality change.

llvm-svn: 92445
 2010-01-03 04:39:07 +00:00
Chris Lattner fca0c8f93a 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.

llvm-svn: 92444
 2010-01-03 03:03:27 +00:00
Nick Lewycky ff9cd7ace7 Cleanup. 
llvm-svn: 92436
 2010-01-03 00:55:31 +00:00
Chris Lattner 98ad2b56cc teach instcombine to optimize idioms like A[i]&42 == 0. This 
occurs in 403.gcc in mode_mask_array, in safe-ctype.c (which
is copied in multiple apps) in _sch_istable, etc.

llvm-svn: 92427
 2010-01-02 22:08:28 +00:00
Chris Lattner b56bef45f8 Teach the table lookup optimization to generate range compares 
when a consequtive sequence of elements all satisfies the 
predicate.  Like the double compare case, this generates better
code than the magic constant case and generalizes to more than
32/64 element array lookups.

Here are some examples where it triggers.  From 403.gcc, most
accesses to the rtx_class array are handled, e.g.:

@rtx_class = constant [153 x i8] c"xxxxxmmmmmmmmxxxxxxxxxxxxmxxxxxxiiixxxxxxxxxxxxxxxxxxxooxooooooxxoooooox3x2c21c2222ccc122222ccccaaaaaa<<<<<<<<<<<<<<<<<<111111111111bbooxxxxxxxxxxcc2211x", align 32 ; <[153 x i8]*> [#uses=547]
   %142 = icmp eq i8 %141, 105
@rtx_class = constant [153 x i8] c"xxxxxmmmmmmmmxxxxxxxxxxxxmxxxxxxiiixxxxxxxxxxxxxxxxxxxooxooooooxxoooooox3x2c21c2222ccc122222ccccaaaaaa<<<<<<<<<<<<<<<<<<111111111111bbooxxxxxxxxxxcc2211x", align 32 ; <[153 x i8]*> [#uses=543]
	   %165 = icmp eq i8 %164, 60      

Also, most of the 59-element arrays (mode_class/rid_to_yy, etc) 
optimized before are actually range compares.  This lets 32-bit
machines optimize them.

400.perlbmk has stuff like this:

400.perlbmk: PL_regkind, even for 32-bit:
@PL_regkind = constant [62 x i8] c"\00\00\02\02\02\06\06\06\06\09\09\0B\0B\0D\0E\0E\0E\11\12\12\14\14\16\16\18\18\1A\1A\1C\1C\1E\1F !!!$$&'((((,-.///88886789:;8$", align 32 ; <[62 x i8]*> [#uses=4]
	   %811 = icmp ne i8 %810, 33 

@PL_utf8skip = constant [256 x i8] c"\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\01\02\02\02\02\02\02\02\02\02\02\02\02\02\02\02\02\02\02\02\02\02\02\02\02\02\02\02\02\02\02\02\02\03\03\03\03\03\03\03\03\03\03\03\03\03\03\03\03\04\04\04\04\04\04\04\04\05\05\05\05\06\06\07\0D", align 32 ; <[256 x i8]*> [#uses=94]
	   %12 = icmp ult i8 %10, 2
           
etc.

llvm-svn: 92426
 2010-01-02 21:50:18 +00:00