Chris Lattner
dbe298571f
add a new testcase for constant foldable calls
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23464 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 05:02:03 +00:00
Chris Lattner
231308c545
Fix a bug where we would evaluate stores into linkonce objects which could be
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potentially replaced at link-time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23463 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 04:50:03 +00:00
Chris Lattner
cd27142cc8
Implement support for static constructors with calls in them. This is useful
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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 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 04:45:34 +00:00
Chris Lattner
93a900111f
Add a more difficult testcase which uses a call to a helper function to do
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the initialization
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23461 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 04:44:04 +00:00
Chris Lattner
8a7cc6e71c
Refactor this code a bit, no functionality changes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23460 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 04:27:01 +00:00
Chris Lattner
5e8d2dc197
Move the post-lsr simplify cfg pass after lowereh, so it can clean up after
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eh lowering as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23459 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 00:14:41 +00:00
Chris Lattner
30e21a46f0
minor pattern shuffling
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23458 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 22:20:16 +00:00
Chris Lattner
fab3728801
memoize the assert results
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23457 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 22:10:24 +00:00
Chris Lattner
3748147aaf
Emit the switch stmt cases in alphabetical order instead of pointer order,
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which is not stable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23456 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 21:59:35 +00:00
Jim Laskey
e6b90fba4a
Addition of a simple two pass scheduler. This version is currently hacked up
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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 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 21:57:04 +00:00
Chris Lattner
6bc7e513d5
implement a fixme: only select values once, even if used multiple times.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23454 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 21:53:26 +00:00
Chris Lattner
ff0c1ef9eb
Remove some dead code. ctor evaluation subsumes empty ctor elim
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23453 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 20:38:20 +00:00
Chris Lattner
a22fdb0a37
Add support for alloca, implementing ctor-list-opt.ll:CTOR6
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23452 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 17:07:09 +00:00
Chris Lattner
33c36f399f
Testcase that uses an alloca
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23451 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 17:06:32 +00:00
Chris Lattner
aae4a1cd3f
Add a debug printout, fix a crash on kc++
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23450 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 07:34:35 +00:00
Chris Lattner
798b4d5bb3
Implement loads/stores through GEP's of globals. This implements
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ctor-list-opt.ll:CTOR5.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23449 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 06:52:44 +00:00
Chris Lattner
43898ef0ae
add another case, this one that uses getelementptr instructions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23448 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 06:51:50 +00:00
Chris Lattner
0b142e3920
Replace TraverseGEPInitializer with ConstantFoldLoadThroughGEPConstantExpr
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23447 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 05:34:07 +00:00
Chris Lattner
ebe61201d1
Eliminate GetGEPGlobalInitializer in favor of the more powerful
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ConstantFoldLoadThroughGEPConstantExpr function in the utils lib.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23446 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 05:28:52 +00:00
Chris Lattner
363f2a26d5
Factor the GetGEPGlobalInitializer out of this pass and into Transforms/Utils
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as ConstantFoldLoadThroughGEPConstantExpr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23445 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 05:28:06 +00:00
Chris Lattner
c5f52e6da1
Move the ConstantFoldLoadThroughGEPConstantExpr function out of the InstCombine
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pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23444 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 05:27:10 +00:00
Chris Lattner
c5406b55d5
add a new function
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23443 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 05:26:32 +00:00
Chris Lattner
562a055ca7
add a comment
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23442 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 05:16:34 +00:00
Chris Lattner
04de1cfb2b
Add support for getelementptr, load, and correctly reject volatile stores.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23441 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 05:15:37 +00:00
Chris Lattner
d44b0ff038
add a test for load
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23440 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 05:14:48 +00:00
Chris Lattner
cdf98bed96
Add support for br/brcond/switch and phi
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23439 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 04:57:38 +00:00
Chris Lattner
44b19f2bcb
add another testcase with simple control flow
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23438 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 04:57:10 +00:00
Chris Lattner
79c1101947
Add a simple interpreter to this code, allowing us to statically evaluate
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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 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 04:44:35 +00:00
Chris Lattner
1fcfe32e51
make this harder: put some code into it
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23436 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 04:43:01 +00:00
Chris Lattner
db973e60ce
factor some code into a InstallGlobalCtors method, add comments. No functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23435 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 02:31:18 +00:00
Chris Lattner
7d8e58f384
Make the global opt optimizer work on modules with a null terminator, by
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accepting the null even with a non-65535 init prio
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23434 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 02:19:27 +00:00
Chris Lattner
b1ab458047
Factor this code out into a few methods.
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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 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 01:43:45 +00:00
Chris Lattner
09eec56af0
new testcase for static ctor list optimizations
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23432 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 01:42:03 +00:00
Jeff Cohen
a48283baa3
Fix VC++ build errors.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23431 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-25 19:04:43 +00:00
Chris Lattner
aebac50e77
Fix some logic I broke that caused a regression on
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SimplifyLibCalls/2005-05-20-sprintf-crash.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23430 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-25 07:06:48 +00:00
Chris Lattner
5931c54e85
Move MaskedValueIsZero up.
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Match a bunch of idioms for sign extensions, implementing InstCombine/signext.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23428 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-24 23:43:33 +00:00
Chris Lattner
8a11da021b
All of these should turn into sign extends (e.g. extsh/extsb on PPC)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23427 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-24 23:42:18 +00:00
Chris Lattner
a58ef7b652
Add long-overdue helpers for getting constants with known upper bits
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23426 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-24 22:57:28 +00:00
Chris Lattner
5d735bf29b
Simplify this code a bit by relying on recursive simplification. Support
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sprintf("%s", P)'s that have uses.
s/hasNUses(0)/use_empty()/
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23425 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-24 22:17:06 +00:00
Chris Lattner
397fa21f27
Enhance this to check for a crash, add a case that crashes simplifylibcalls,
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and add a case that has uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23424 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-24 22:16:04 +00:00
Chris Lattner
d4f43519c2
new testcase that crashes the CFE
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23423 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-24 20:54:33 +00:00
Chris Lattner
5fada3b218
new testcase for PR630
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23422 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-24 08:38:28 +00:00
Chris Lattner
5b845c9443
Add support for a marker byte that indicates that we shouldn't add the user
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prefix to a symbol name
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23421 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-24 08:24:28 +00:00
Chris Lattner
8baaa4f0b6
change proto slightly
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23420 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-24 08:23:53 +00:00
Chris Lattner
296dfe3b8a
memoize translations
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23419 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-24 00:50:51 +00:00
Chris Lattner
ea874f3306
Teach the dag isel generator how to construct arbitrary immediates. The
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generated isel now tries li then lis, then lis+ori.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23418 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-24 00:41:58 +00:00
Chris Lattner
72fe91c4dd
Teach the DAG isel generator to emit code that creates nodes.
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Fix a few corner cases parsing things like (i32 imm:$foo)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23417 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-24 00:40:24 +00:00
Chris Lattner
8fc3568d98
Emit better code (no more copies for var references), and support DAG patterns
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(e.g. things like rotates).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23416 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-23 23:16:51 +00:00
Chris Lattner
547394ca38
Fix a fixme by passing around SDOperand's instead of SDNode*'s
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23415 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-23 21:53:45 +00:00
Chris Lattner
d1ff35a49d
Emit code that matches the incoming DAG pattern and checks predicates.
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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 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-23 21:33:23 +00:00