3be62697df
Revert 75571; I'm convinced this isn't the right thing to do.
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llvm-svn: 75642
2009-07-14 17:48:25 +00:00
fbcc663cbf
llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.
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This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").
llvm-svn: 75640
2009-07-14 16:55:14 +00:00
e141364e5c
Require IVUsers after LCSSA, since LCSSA does not preserve IVUsers.
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This results in the pass manager running IVUsers only once for
indvars, instead of twice.
llvm-svn: 75633
2009-07-14 14:26:23 +00:00
14379df4e6
Fix trivial todo in instcombine.
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llvm-svn: 75586
2009-07-14 02:01:53 +00:00
4d6149f356
Update LoopSimplify and LoopUnswitch to use the new makeLoopInvariant
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function.
llvm-svn: 75584
2009-07-14 01:37:59 +00:00
03d5d0f451
Fix indvars to not assume that a loop with a single unique exit
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block has a single unique exiting block.
llvm-svn: 75579
2009-07-14 01:09:02 +00:00
85ae7480d9
Don't delete asm's just because their inputs are undefined;
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xor R, R is a common and valid idiom for zeroing a register, for example.
llvm-svn: 75571
2009-07-14 00:45:38 +00:00
4b95026194
PR4548: optimize zext+udiv+trunc to udiv.
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llvm-svn: 75539
2009-07-13 22:46:01 +00:00
7e1716dc9d
Canonicalize boolean +/- a constant to a select.
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(I think it's reasonably clear that we want to have a canonical form for
constructs like this; if anyone thinks that a select is not the best
canonical form, please tell me.)
llvm-svn: 75531
2009-07-13 22:27:52 +00:00
bb2501bbbe
These don't really need contexts either.
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llvm-svn: 75528
2009-07-13 22:18:28 +00:00
cc85ae132c
Make Loop and MachineLoop be subclasses of LoopBase, rather than typedefs,
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using the Curiously Recurring Template Pattern with LoopBase.
This will help further refactoring, and future functionality for
Loop. Also, Headers can now foward-declare Loop, instead of pulling
in LoopInfo.h or doing tricks.
llvm-svn: 75519
2009-07-13 21:51:15 +00:00
42170b0a9e
Misc simplifications to InstCombiner::commonIntCastTransforms. Most of
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the changes are allowed by not calling this function for bitcasts.
The Instruction::AShr case is dead because
SimplifyDemandedInstructionBits handles that case.
llvm-svn: 75514
2009-07-13 21:45:57 +00:00
7f3a529ae9
Fix comment.
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llvm-svn: 75499
2009-07-13 20:58:59 +00:00
542619e6d5
Move more functionality over to LLVMContext.
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llvm-svn: 75497
2009-07-13 20:58:05 +00:00
f13aa44d4f
Don't bother to call commonIntCastTransforms for bitcasts; int->int
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bitcasts will always be eliminated anyway.
llvm-svn: 75495
2009-07-13 20:53:00 +00:00
53a52215b5
Begin the painful process of tearing apart the rat'ss nest that is Constants.cpp and ConstantFold.cpp.
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This involves temporarily hard wiring some parts to use the global context. This isn't ideal, but it's
the only way I could figure out to make this process vaguely incremental.
llvm-svn: 75445
2009-07-13 04:09:18 +00:00
575db66e1b
Remove check which is duplicated in
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InstCombiner::visitSelectInstWithICmp.
llvm-svn: 75409
2009-07-12 02:00:05 +00:00
2f67295aac
silence a vc++ warning.
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llvm-svn: 75393
2009-07-11 22:31:59 +00:00
56d0659726
assert(0) -> LLVM_UNREACHABLE.
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Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.
llvm-svn: 75379
2009-07-11 20:10:48 +00:00
ccb29cd290
Convert more assert(0)+abort() -> LLVM_UNREACHABLE,
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and abort()/exit() -> llvm_report_error().
llvm-svn: 75363
2009-07-11 13:10:19 +00:00
dcfdce9067
Move a method that creates constant ranges relative to another constant range
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per icmp predicate out of predsimplify and into ConstantRange.
Add another utility method that determines whether one range is a subset of
another. Combine with the former to determine whether icmp pred range, range
is known to be true or not.
llvm-svn: 75357
2009-07-11 06:15:39 +00:00
16e7674f4b
Push LLVMContext through the PatternMatch API.
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llvm-svn: 75255
2009-07-10 17:35:01 +00:00
1e5f00e7a7
This started as a small change, I swear. Unfortunately, lots of things call the [I|F]CmpInst constructors. Who knew!?
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llvm-svn: 75200
2009-07-09 23:48:35 +00:00
29fd313e9e
A little bit more LLVMContextification.
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llvm-svn: 75159
2009-07-09 18:36:20 +00:00
ab81d2f5e9
There's no need to consider PHI nodes in the same block as the instruction
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we're inserting sigma/phi functions for. Patch by Andre Tavares.
llvm-svn: 75138
2009-07-09 15:59:27 +00:00
eb373ad2af
Add some statistics to SSI so we can see what it's up to.
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Add an -ssi-everything pass which calls createSSI on everything in the function.
llvm-svn: 75135
2009-07-09 15:33:14 +00:00
a771459bb1
Push LLVMContext _back_ through IRBuilder.
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llvm-svn: 75040
2009-07-08 20:50:47 +00:00
7bb3173ff7
Tell ScalarEvolution to forget a loop before starting to delete it.
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This way ScalarEvolution can examine the loop to determine what state
it needs to update, if it chooses.
llvm-svn: 75029
2009-07-08 19:14:29 +00:00
b17f32945f
Switch GlobalVariable ctors to a sane API, where *either* a context or a module is required.
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llvm-svn: 75025
2009-07-08 19:03:57 +00:00
a21d3daadc
Remove the vicmp and vfcmp instructions. Because we never had a release with
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these instructions, no autoupgrade or backwards compatibility support is
provided.
llvm-svn: 74991
2009-07-08 03:04:38 +00:00
5948fdf68b
Push LLVMContext through GlobalVariables and IRBuilder.
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llvm-svn: 74985
2009-07-08 01:26:06 +00:00
af75234955
Change all SCEV* to SCEV *.
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llvm-svn: 74918
2009-07-07 17:06:11 +00:00
38264b1554
"LLVMContext* " --> "LLVMContext *"
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llvm-svn: 74878
2009-07-06 23:00:19 +00:00
f1f1743b2e
Finish LLVMContext-ing lib/Analysis. This required pushing LLVMContext's through the ValueTracking API.
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llvm-svn: 74873
2009-07-06 22:37:39 +00:00
39f00cc1d4
Thread LLVMContext through the constant folding APIs, which touches a lot of files.
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llvm-svn: 74844
2009-07-06 18:42:36 +00:00
605a8c743f
More LLVMContext-ification.
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llvm-svn: 74811
2009-07-06 01:34:54 +00:00
e70b637033
More LLVMContext-ification.
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llvm-svn: 74807
2009-07-05 22:41:43 +00:00
bbd8707f6e
Fix build.
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llvm-svn: 74782
2009-07-03 22:11:58 +00:00
340288c621
Even more passes being LLVMContext'd.
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llvm-svn: 74781
2009-07-03 19:42:02 +00:00
cb23509546
Add Static Single Information construction pass written by André Tavares!
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Use it by requiring it through the pass manager, then calling its createSSI
method on the variables that you want in SSI form.
llvm-svn: 74780
2009-07-03 19:28:36 +00:00
29c8efce31
Add newline at end of file.
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llvm-svn: 74773
2009-07-03 15:30:58 +00:00
80baed63b4
Second batch of passes using LLVMContext.
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llvm-svn: 74753
2009-07-03 00:54:20 +00:00
b5618da226
Convert the first batch of passes to use LLVMContext.
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llvm-svn: 74748
2009-07-03 00:17:18 +00:00
f3f6aaa2c3
fix inverted logic pointed out by John McCall, noticed by inspection.
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This was considering vector intrinsics to have cost 2, but non-vector
intrinsics to have cost 1, which is backward.
llvm-svn: 74698
2009-07-02 15:39:39 +00:00
43f33dd550
Fix a bunch of other places that used operator[] to test whether
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a key is present in a std::map or DenseMap to use find instead.
llvm-svn: 74676
2009-07-02 00:17:47 +00:00
cf092389a9
Request LCSSA after LoopSimplify. This fixes a problem in which the
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PassManager was scheduling LCSSA before LoopSimplify, which does not
preserve LCSSA.
llvm-svn: 74661
2009-07-01 23:21:38 +00:00
83348f80b6
Fix an instcombine abort on a scalar-to-vector bitcast. This fixes PR4487.
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llvm-svn: 74646
2009-07-01 21:38:46 +00:00
6773d388aa
Add a pointer to the owning LLVMContext to Module. This requires threading LLVMContext through a lot
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of the bitcode reader and ASM parser APIs, as well as supporting it in all of the tools.
Patches for Clang and LLVM-GCC to follow.
llvm-svn: 74614
2009-07-01 16:58:40 +00:00
96122debc1
improve the APIs for creating struct and function types with no arguments/elements
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to not have to create a temporary vector (in the API at least). Patch by Jay Foad!
llvm-svn: 74584
2009-07-01 04:13:31 +00:00
4dfc680059
Minor code simplification.
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llvm-svn: 74491
2009-06-30 01:24:43 +00:00
Dale Johannesen