Chris Lattner [Thu, 29 Sep 2005 17:31:03 +0000 (17:31 +0000)]
Make the JIT default to the DAG isel instead of the pattern isel, like LLC.
The Pattern isel has some strange memory corruption issues going on. :(
This should have been converted over anyway, but it got forgotten somehow
when switching to the dag isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23523
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Chris Lattner [Thu, 29 Sep 2005 06:44:39 +0000 (06:44 +0000)]
Fix two bugs in my patch earlier today that broke int->fp conversion on X86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23522
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 29 Sep 2005 06:17:27 +0000 (06:17 +0000)]
Fold isascii into a simple comparison. This speeds up 197.parser by 7.4%,
bringing the LLC time down to the CBE time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23521
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Chris Lattner [Thu, 29 Sep 2005 06:16:37 +0000 (06:16 +0000)]
new testcase for isascii
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23520
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Chris Lattner [Thu, 29 Sep 2005 06:16:11 +0000 (06:16 +0000)]
remove a bunch of unneeded stuff, or self evident comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23519
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 29 Sep 2005 06:11:34 +0000 (06:11 +0000)]
add a new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23518
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Chris Lattner [Thu, 29 Sep 2005 04:54:20 +0000 (04:54 +0000)]
Implement a couple of memcmp folds from the todo list
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23517
91177308-0d34-0410-b5e6-
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Jeff Cohen [Thu, 29 Sep 2005 01:59:49 +0000 (01:59 +0000)]
Silence VC++ redeclaration warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23516
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Chris Lattner [Thu, 29 Sep 2005 00:59:32 +0000 (00:59 +0000)]
Never rely on ReplaceAllUsesWith when selecting, use CodeGenMap instead.
ReplaceAllUsesWith does not replace scalars SDOperand floating around on
the stack, permitting things to be selected multiple times.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23515
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Chris Lattner [Wed, 28 Sep 2005 23:07:13 +0000 (23:07 +0000)]
Codegen ADD X, IMM -> addis/addi if needed.
This implements PowerPC/fold-li.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23514
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Chris Lattner [Wed, 28 Sep 2005 23:03:11 +0000 (23:03 +0000)]
add a testcase for a feature we regressed on because noone wrote the test! :(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23513
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Chris Lattner [Wed, 28 Sep 2005 22:53:16 +0000 (22:53 +0000)]
Autogen MUL, move FP cases together
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23512
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 28 Sep 2005 22:50:24 +0000 (22:50 +0000)]
disentangle FP from INT versions of div/mul
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23511
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Chris Lattner [Wed, 28 Sep 2005 22:47:28 +0000 (22:47 +0000)]
Use the autogenerated matcher for ADD/SUB
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23510
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Chris Lattner [Wed, 28 Sep 2005 22:47:06 +0000 (22:47 +0000)]
add a patter for SUBFIC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23509
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Chris Lattner [Wed, 28 Sep 2005 22:38:27 +0000 (22:38 +0000)]
Mark int binops as int-only, add FP binops. Mark FADD/FMUL as commutative but
not associative. Add [SU]REM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23508
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Chris Lattner [Wed, 28 Sep 2005 22:30:58 +0000 (22:30 +0000)]
wrap a long line
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23507
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Chris Lattner [Wed, 28 Sep 2005 22:29:58 +0000 (22:29 +0000)]
Add FP versions of the binary operators, keeping the int and fp worlds seperate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23506
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Chris Lattner [Wed, 28 Sep 2005 22:29:17 +0000 (22:29 +0000)]
Add FP versions of the binary operators, keeping the int and fp worlds seperate.
Though I have done extensive testing, it is possible that this will break
things in configs I can't test. Please let me know if this causes a problem
and I'll fix it ASAP.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23505
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Chris Lattner [Wed, 28 Sep 2005 22:28:18 +0000 (22:28 +0000)]
Add FP versions of the binary operators, keeping the int and fp worlds seperate.
Though I have done extensive testing, it is possible that this will break
things in configs I can't test. Please let me know if this causes a problem
and I'll fix it ASAP.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23504
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Chris Lattner [Wed, 28 Sep 2005 20:58:39 +0000 (20:58 +0000)]
Mark associative nodes as associative
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23503
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Chris Lattner [Wed, 28 Sep 2005 20:58:06 +0000 (20:58 +0000)]
add support for an associative marker
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23502
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Chris Lattner [Wed, 28 Sep 2005 19:27:25 +0000 (19:27 +0000)]
Emit an error if instructions or patterns are defined but can never match.
Currently we check that immediate values live on the RHS of commutative
operators. Defining ORI like this, for example:
def ORI : DForm_4<24, (ops GPRC:$dst, GPRC:$src1, u16imm:$src2),
"ori $dst, $src1, $src2",
[(set GPRC:$dst, (or immZExt16:$src2, GPRC:$src1))]>;
results in:
tblgen: In ORI: Instruction can never match: Immediate values must be on the RHS of commutative operators!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23501
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Chris Lattner [Wed, 28 Sep 2005 19:01:44 +0000 (19:01 +0000)]
Nate pointed out that mulh[us] are commutative as well. Thanks!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23500
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Chris Lattner [Wed, 28 Sep 2005 18:28:29 +0000 (18:28 +0000)]
collect commutativity information
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23499
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Chris Lattner [Wed, 28 Sep 2005 18:27:58 +0000 (18:27 +0000)]
expose commutativity information
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23498
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Chris Lattner [Wed, 28 Sep 2005 18:12:37 +0000 (18:12 +0000)]
All (xor *) cases are autogenerated now
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23497
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Chris Lattner [Wed, 28 Sep 2005 18:10:51 +0000 (18:10 +0000)]
add support for missed eqv tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23496
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Chris Lattner [Wed, 28 Sep 2005 18:08:58 +0000 (18:08 +0000)]
add testcase for nand
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23495
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Chris Lattner [Wed, 28 Sep 2005 18:04:52 +0000 (18:04 +0000)]
Implement PowerPC/eqv-andc-orc-nor.ll:EQV3
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23494
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Chris Lattner [Wed, 28 Sep 2005 18:04:22 +0000 (18:04 +0000)]
Consolidate the eqv.ll and nor.ll files together.
Add a missed eqv case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23493
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Chris Lattner [Wed, 28 Sep 2005 17:57:56 +0000 (17:57 +0000)]
Prefer cheaper patterns to more expensive ones. Print the costs to the generated
file
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23492
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Chris Lattner [Wed, 28 Sep 2005 17:55:10 +0000 (17:55 +0000)]
simple tests for nor generation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23491
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Chris Lattner [Wed, 28 Sep 2005 17:13:15 +0000 (17:13 +0000)]
learn to codegen not as NOR instead of xoris/xori
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23490
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Chris Lattner [Wed, 28 Sep 2005 17:07:09 +0000 (17:07 +0000)]
These nodes are all autogenerated
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23489
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Chris Lattner [Wed, 28 Sep 2005 16:58:06 +0000 (16:58 +0000)]
Select Constant nodes to TargetConstant nodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23488
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Chris Lattner [Wed, 28 Sep 2005 01:34:32 +0000 (01:34 +0000)]
Constant fold llvm.sqrt
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23487
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Chris Lattner [Tue, 27 Sep 2005 22:44:59 +0000 (22:44 +0000)]
add a note about a way to improve this code further, that I won't be getting
to right now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23485
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Chris Lattner [Tue, 27 Sep 2005 22:28:11 +0000 (22:28 +0000)]
Fix a regression in my previous patch, fixing GlobalOpt/2005-09-27-Crash.ll
and PR632.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23484
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Chris Lattner [Tue, 27 Sep 2005 22:27:19 +0000 (22:27 +0000)]
Testcase for PR632
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23483
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Chris Lattner [Tue, 27 Sep 2005 22:18:25 +0000 (22:18 +0000)]
Darwin, like many BSD systems, has a setjmp/longjmp which saves the signal mask
on setjmp calls and restores it on longjmp calls (both of which require syscalls).
This makes the calls REALLY slow. Use _setjmp/_longjmp instead. This speeds up
hexxagon from 120.31s to 15.68s: from 5.53x slower than GCC to 28% faster than GCC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23482
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Chris Lattner [Tue, 27 Sep 2005 22:15:53 +0000 (22:15 +0000)]
If the target prefers it, use _setjmp/_longjmp should be used instead of setjmp/longjmp for llvm.setjmp/llvm.longjmp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23481
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Chris Lattner [Tue, 27 Sep 2005 22:13:56 +0000 (22:13 +0000)]
initialize new flag
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23480
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Chris Lattner [Tue, 27 Sep 2005 22:13:36 +0000 (22:13 +0000)]
Add a new flag for targets where setjmp/longjmp saves/restores the signal mask,
and _setjmp/_longjmp should be used instead (for llvm.setjmp/llvm.longjmp).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23479
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Chris Lattner [Tue, 27 Sep 2005 21:33:12 +0000 (21:33 +0000)]
Avoid spilling stack slots... to stack slots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23478
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Chris Lattner [Tue, 27 Sep 2005 21:18:17 +0000 (21:18 +0000)]
Completely rewrite 'correct' eh support. This changes how setjmp insertion
is performed so it is only at most once per function that contains an invoke
instead of once per invoke in the function. This patch has the following perks:
1. It fixes PR631, which complains about slowness.
2. If fixes PR240, which complains about non-volatile vars being live across
setjmp/longjmps.
3. It improves (but does not fix) the jmpbuf alignment issue on itanium by not
forcing the jmpbufs to always be 8-bytes off the alignment of the structure.
4. It speeds up 253.perlbmk from 338s to 13.70s (a 25x improvement!), making us
now about 4% faster than GCC.
Further improvements are also possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23477
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Chris Lattner [Tue, 27 Sep 2005 21:10:32 +0000 (21:10 +0000)]
Make the pass name simpler
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23476
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Chris Lattner [Tue, 27 Sep 2005 20:52:44 +0000 (20:52 +0000)]
fix CBackend/2005-09-27-VolatileFuncPtr.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23475
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Chris Lattner [Tue, 27 Sep 2005 20:52:30 +0000 (20:52 +0000)]
new testcase the CBE creates invalid C code for
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23474
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Chris Lattner [Tue, 27 Sep 2005 19:39:00 +0000 (19:39 +0000)]
allow demotion to volatile values, add support for invoke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23473
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Chris Lattner [Tue, 27 Sep 2005 19:38:43 +0000 (19:38 +0000)]
allow demotion to volatile values
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23472
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Chris Lattner [Tue, 27 Sep 2005 18:34:31 +0000 (18:34 +0000)]
Add a simple testcase for lowerinvoke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23471
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Chris Lattner [Tue, 27 Sep 2005 17:45:33 +0000 (17:45 +0000)]
Make sure to clear the CodeGenMap after each basic block is selected to avoid
cross MBB pollution.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23470
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Jim Laskey [Tue, 27 Sep 2005 17:32:45 +0000 (17:32 +0000)]
Remove some redundancies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23469
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Chris Lattner [Tue, 27 Sep 2005 06:38:05 +0000 (06:38 +0000)]
Make this slightly more efficient by pushing actual type information down
into the evaluator. This shrinks a release build of instcombine's text
section from 216363 to 215975 bytes (on PPC).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23468
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Chris Lattner [Tue, 27 Sep 2005 06:09:08 +0000 (06:09 +0000)]
Split SimpleConstantVal up into its components, so each Constant subclass getsa different enum value. This allows 'classof' for these to be really simple,not needing to call getType() anymore.
This speeds up isa/dyncast/etc for constants, and also makes them smaller.
For example, the text section of a release build of InstCombine.cpp shrinks
from 230037 bytes to 216363 bytes, a 6% reduction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23467
91177308-0d34-0410-b5e6-
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Chris Lattner [Tue, 27 Sep 2005 06:08:32 +0000 (06:08 +0000)]
Split SimpleConstantVal up into its components, so each Constant subclass gets
a different enum value. This allows 'classof' for these to be really simple,
not needing to call getType() anymore.
This speeds up isa/dyncast/etc for constants, and also makes them smaller.
For example, the text section of a release build of InstCombine.cpp shrinks
from 230037 bytes to 216363 bytes, a 6% reduction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23466
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Chris Lattner [Tue, 27 Sep 2005 05:02:43 +0000 (05:02 +0000)]
Add support for external calls that we know how to constant fold. This implements
ctor-list-opt.ll:CTOR8
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23465
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Chris Lattner [Tue, 27 Sep 2005 05:02:03 +0000 (05:02 +0000)]
add a new testcase for constant foldable calls
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23464
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Chris Lattner [Tue, 27 Sep 2005 04:50:03 +0000 (04:50 +0000)]
Fix a bug where we would evaluate stores into linkonce objects which could be
potentially replaced at link-time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23463
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Chris Lattner [Tue, 27 Sep 2005 04:45:34 +0000 (04:45 +0000)]
Implement support for static constructors with calls in them. This is useful
because gccas runs globalopt before inlining.
This implements ctor-list-opt.ll:CTOR7
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23462
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Chris Lattner [Tue, 27 Sep 2005 04:44:04 +0000 (04:44 +0000)]
Add a more difficult testcase which uses a call to a helper function to do
the initialization
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23461
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Chris Lattner [Tue, 27 Sep 2005 04:27:01 +0000 (04:27 +0000)]
Refactor this code a bit, no functionality changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23460
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Chris Lattner [Tue, 27 Sep 2005 00:14:41 +0000 (00:14 +0000)]
Move the post-lsr simplify cfg pass after lowereh, so it can clean up after
eh lowering as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23459
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Chris Lattner [Mon, 26 Sep 2005 22:20:16 +0000 (22:20 +0000)]
minor pattern shuffling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23458
91177308-0d34-0410-b5e6-
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Chris Lattner [Mon, 26 Sep 2005 22:10:24 +0000 (22:10 +0000)]
memoize the assert results
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23457
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Chris Lattner [Mon, 26 Sep 2005 21:59:35 +0000 (21:59 +0000)]
Emit the switch stmt cases in alphabetical order instead of pointer order,
which is not stable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23456
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Jim Laskey [Mon, 26 Sep 2005 21:57:04 +0000 (21:57 +0000)]
Addition of a simple two pass scheduler. This version is currently hacked up
for testing and will require target machine info to do a proper scheduling.
The simple scheduler can be turned on using -sched=simple (defaults
to -sched=none)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23455
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Chris Lattner [Mon, 26 Sep 2005 21:53:26 +0000 (21:53 +0000)]
implement a fixme: only select values once, even if used multiple times.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23454
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Chris Lattner [Mon, 26 Sep 2005 20:38:20 +0000 (20:38 +0000)]
Remove some dead code. ctor evaluation subsumes empty ctor elim
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23453
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Chris Lattner [Mon, 26 Sep 2005 17:07:09 +0000 (17:07 +0000)]
Add support for alloca, implementing ctor-list-opt.ll:CTOR6
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23452
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Chris Lattner [Mon, 26 Sep 2005 17:06:32 +0000 (17:06 +0000)]
Testcase that uses an alloca
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23451
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Chris Lattner [Mon, 26 Sep 2005 07:34:35 +0000 (07:34 +0000)]
Add a debug printout, fix a crash on kc++
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23450
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Chris Lattner [Mon, 26 Sep 2005 06:52:44 +0000 (06:52 +0000)]
Implement loads/stores through GEP's of globals. This implements
ctor-list-opt.ll:CTOR5.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23449
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Chris Lattner [Mon, 26 Sep 2005 06:51:50 +0000 (06:51 +0000)]
add another case, this one that uses getelementptr instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23448
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Chris Lattner [Mon, 26 Sep 2005 05:34:07 +0000 (05:34 +0000)]
Replace TraverseGEPInitializer with ConstantFoldLoadThroughGEPConstantExpr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23447
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Chris Lattner [Mon, 26 Sep 2005 05:28:52 +0000 (05:28 +0000)]
Eliminate GetGEPGlobalInitializer in favor of the more powerful
ConstantFoldLoadThroughGEPConstantExpr function in the utils lib.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23446
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Chris Lattner [Mon, 26 Sep 2005 05:28:06 +0000 (05:28 +0000)]
Factor the GetGEPGlobalInitializer out of this pass and into Transforms/Utils
as ConstantFoldLoadThroughGEPConstantExpr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23445
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Chris Lattner [Mon, 26 Sep 2005 05:27:10 +0000 (05:27 +0000)]
Move the ConstantFoldLoadThroughGEPConstantExpr function out of the InstCombine
pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23444
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Chris Lattner [Mon, 26 Sep 2005 05:26:32 +0000 (05:26 +0000)]
add a new function
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23443
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Chris Lattner [Mon, 26 Sep 2005 05:16:34 +0000 (05:16 +0000)]
add a comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23442
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Chris Lattner [Mon, 26 Sep 2005 05:15:37 +0000 (05:15 +0000)]
Add support for getelementptr, load, and correctly reject volatile stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23441
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Chris Lattner [Mon, 26 Sep 2005 05:14:48 +0000 (05:14 +0000)]
add a test for load
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23440
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Chris Lattner [Mon, 26 Sep 2005 04:57:38 +0000 (04:57 +0000)]
Add support for br/brcond/switch and phi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23439
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Chris Lattner [Mon, 26 Sep 2005 04:57:10 +0000 (04:57 +0000)]
add another testcase with simple control flow
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23438
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Chris Lattner [Mon, 26 Sep 2005 04:44:35 +0000 (04:44 +0000)]
Add a simple interpreter to this code, allowing us to statically evaluate
global ctors that are simple enough. This implements ctor-list-opt.ll:CTOR2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23437
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Chris Lattner [Mon, 26 Sep 2005 04:43:01 +0000 (04:43 +0000)]
make this harder: put some code into it
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23436
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Chris Lattner [Mon, 26 Sep 2005 02:31:18 +0000 (02:31 +0000)]
factor some code into a InstallGlobalCtors method, add comments. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23435
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Chris Lattner [Mon, 26 Sep 2005 02:19:27 +0000 (02:19 +0000)]
Make the global opt optimizer work on modules with a null terminator, by
accepting the null even with a non-65535 init prio
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23434
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Chris Lattner [Mon, 26 Sep 2005 01:43:45 +0000 (01:43 +0000)]
Factor this code out into a few methods.
Implement the start of global ctor optimization. It is currently smart
enough to remove the global ctor for cases like this:
struct foo {
foo() {}
} x;
... saving a bit of startup time for the program.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23433
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Chris Lattner [Mon, 26 Sep 2005 01:42:03 +0000 (01:42 +0000)]
new testcase for static ctor list optimizations
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23432
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Jeff Cohen [Sun, 25 Sep 2005 19:04:43 +0000 (19:04 +0000)]
Fix VC++ build errors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23431
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Chris Lattner [Sun, 25 Sep 2005 07:06:48 +0000 (07:06 +0000)]
Fix some logic I broke that caused a regression on
SimplifyLibCalls/2005-05-20-sprintf-crash.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23430
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Chris Lattner [Sat, 24 Sep 2005 23:43:33 +0000 (23:43 +0000)]
Move MaskedValueIsZero up.
Match a bunch of idioms for sign extensions, implementing InstCombine/signext.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23428
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Chris Lattner [Sat, 24 Sep 2005 23:42:18 +0000 (23:42 +0000)]
All of these should turn into sign extends (e.g. extsh/extsb on PPC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23427
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Chris Lattner [Sat, 24 Sep 2005 22:57:28 +0000 (22:57 +0000)]
Add long-overdue helpers for getting constants with known upper bits
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23426
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Chris Lattner [Sat, 24 Sep 2005 22:17:06 +0000 (22:17 +0000)]
Simplify this code a bit by relying on recursive simplification. Support
sprintf("%s", P)'s that have uses.
s/hasNUses(0)/use_empty()/
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23425
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Chris Lattner [Sat, 24 Sep 2005 22:16:04 +0000 (22:16 +0000)]
Enhance this to check for a crash, add a case that crashes simplifylibcalls,
and add a case that has uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23424
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Chris Lattner [Sat, 24 Sep 2005 20:54:33 +0000 (20:54 +0000)]
new testcase that crashes the CFE
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23423
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Chris Lattner [Sat, 24 Sep 2005 08:38:28 +0000 (08:38 +0000)]
new testcase for PR630
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23422
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