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
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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
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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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Chris Lattner [Sat, 24 Sep 2005 08:24:28 +0000 (08:24 +0000)]
Add support for a marker byte that indicates that we shouldn't add the user
prefix to a symbol name
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23421
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Chris Lattner [Sat, 24 Sep 2005 08:23:53 +0000 (08:23 +0000)]
change proto slightly
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23420
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Chris Lattner [Sat, 24 Sep 2005 00:50:51 +0000 (00:50 +0000)]
memoize translations
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23419
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Chris Lattner [Sat, 24 Sep 2005 00:41:58 +0000 (00:41 +0000)]
Teach the dag isel generator how to construct arbitrary immediates. The
generated isel now tries li then lis, then lis+ori.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23418
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Chris Lattner [Sat, 24 Sep 2005 00:40:24 +0000 (00:40 +0000)]
Teach the DAG isel generator to emit code that creates nodes.
Fix a few corner cases parsing things like (i32 imm:$foo)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23417
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Chris Lattner [Fri, 23 Sep 2005 23:16:51 +0000 (23:16 +0000)]
Emit better code (no more copies for var references), and support DAG patterns
(e.g. things like rotates).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23416
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Chris Lattner [Fri, 23 Sep 2005 21:53:45 +0000 (21:53 +0000)]
Fix a fixme by passing around SDOperand's instead of SDNode*'s
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23415
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Chris Lattner [Fri, 23 Sep 2005 21:33:23 +0000 (21:33 +0000)]
Emit code that matches the incoming DAG pattern and checks predicates.
This does not check that types match yet, but PPC only has one integer type
;-).
This also doesn't have the code to build the resultant dag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23414
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Chris Lattner [Fri, 23 Sep 2005 20:52:47 +0000 (20:52 +0000)]
emit information about the order patterns are to be matched.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23413
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Chris Lattner [Fri, 23 Sep 2005 19:36:15 +0000 (19:36 +0000)]
start filling in the switch stmt
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23412
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Chris Lattner [Fri, 23 Sep 2005 18:49:09 +0000 (18:49 +0000)]
remove some debugging code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23411
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Chris Lattner [Fri, 23 Sep 2005 18:47:20 +0000 (18:47 +0000)]
Fold two consequtive branches that share a common destination between them.
This implements SimplifyCFG/branch-fold.ll, and is useful on ?:/min/max heavy
code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23410
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Chris Lattner [Fri, 23 Sep 2005 18:43:57 +0000 (18:43 +0000)]
new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23409
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Chris Lattner [Fri, 23 Sep 2005 07:23:18 +0000 (07:23 +0000)]
simplify some logic further
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23408
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Chris Lattner [Fri, 23 Sep 2005 06:39:30 +0000 (06:39 +0000)]
pull a bunch of logic out of SimplifyCFG into a helper fn
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23407
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Chris Lattner [Fri, 23 Sep 2005 06:22:58 +0000 (06:22 +0000)]
speed up Archive::isBytecodeArchive in the case when the archive doesn't have
an llvm-ranlib symtab. This speeds up gccld -native on an almost empty .o file
from 1.63s to 0.18s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23406
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Chris Lattner [Fri, 23 Sep 2005 06:11:24 +0000 (06:11 +0000)]
Speed up isBytecodeLPath from 20s to .01s in common cases. This makes -native
not completely painful to use. Once we decide a directory has a bytecode
library, we know it this function returns true, no need to scan entire directories.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23405
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Chris Lattner [Fri, 23 Sep 2005 06:05:46 +0000 (06:05 +0000)]
1. Do not use .c_str() to keep a persistent handle on a temporary string.
2. Concatenate -lfoo and -L/bar options into a single option instead of
passing "-L /bar" (for example) which doesn't work on Darwin.
3. Send -v output to stderr instead of stdout
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23404
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Chris Lattner [Fri, 23 Sep 2005 00:55:52 +0000 (00:55 +0000)]
Turn (X^C1) == C2 into X == C1^C2 iff X&~C1 = 0 (and move a function)
This happens all the time on PPC for bool values, e.g. eliminating a xori
in inverted-bool-compares.ll.
This should be added to the dag combiner as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23403
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Chris Lattner [Fri, 23 Sep 2005 00:53:06 +0000 (00:53 +0000)]
new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23402
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Chris Lattner [Wed, 21 Sep 2005 06:53:56 +0000 (06:53 +0000)]
Testcase for PR629
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23401
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Chris Lattner [Wed, 21 Sep 2005 04:19:09 +0000 (04:19 +0000)]
Expose the LiveInterval interfaces as public headers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23400
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Chris Lattner [Wed, 21 Sep 2005 04:18:25 +0000 (04:18 +0000)]
move the live interval headers out of lib/CodeGen/
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23399
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Chris Lattner [Wed, 21 Sep 2005 03:56:26 +0000 (03:56 +0000)]
Recommend what I actually test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23398
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Chris Lattner [Tue, 20 Sep 2005 01:48:40 +0000 (01:48 +0000)]
Start threading across blocks with code in them, so long as the code does
not define a value that is used outside of it's block. This catches many
more simplifications, e.g. 854 in 176.gcc, 137 in vpr, etc.
This implements branch-phi-thread.ll:test3.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23397
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Chris Lattner [Tue, 20 Sep 2005 01:43:41 +0000 (01:43 +0000)]
make this test harder: add a case where instructions are in the bb to be
threaded over
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23396
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Chris Lattner [Tue, 20 Sep 2005 00:43:16 +0000 (00:43 +0000)]
Implement merging of blocks with the same condition if the block has multiple
predecessors. This implements branch-phi-thread.ll::test1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23395
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