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5362 Commits

Author SHA1 Message Date
Owen Anderson
53a52215b5 Begin the painful process of tearing apart the rat'ss nest that is Constants.cpp and ConstantFold.cpp. 
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
Eli Friedman
575db66e1b Remove check which is duplicated in 
InstCombiner::visitSelectInstWithICmp.

llvm-svn: 75409
 2009-07-12 02:00:05 +00:00
Chris Lattner
2f67295aac silence a vc++ warning. 
llvm-svn: 75393
 2009-07-11 22:31:59 +00:00
Torok Edwin
56d0659726 assert(0) -> LLVM_UNREACHABLE. 
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
Torok Edwin
ccb29cd290 Convert more assert(0)+abort() -> LLVM_UNREACHABLE, 
and abort()/exit() -> llvm_report_error().

llvm-svn: 75363
 2009-07-11 13:10:19 +00:00
Nick Lewycky
dcfdce9067 Move a method that creates constant ranges relative to another constant range 
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
Owen Anderson
16e7674f4b Push LLVMContext through the PatternMatch API. 
llvm-svn: 75255
 2009-07-10 17:35:01 +00:00
Owen Anderson
1e5f00e7a7 This started as a small change, I swear. Unfortunately, lots of things call the [I|F]CmpInst constructors. Who knew!? 
llvm-svn: 75200
 2009-07-09 23:48:35 +00:00
Owen Anderson
29fd313e9e A little bit more LLVMContextification. 
llvm-svn: 75159
 2009-07-09 18:36:20 +00:00
Nick Lewycky
ab81d2f5e9 There's no need to consider PHI nodes in the same block as the instruction 
we're inserting sigma/phi functions for. Patch by Andre Tavares.

llvm-svn: 75138
 2009-07-09 15:59:27 +00:00
Nick Lewycky
eb373ad2af Add some statistics to SSI so we can see what it's up to. 
Add an -ssi-everything pass which calls createSSI on everything in the function.

llvm-svn: 75135
 2009-07-09 15:33:14 +00:00
Owen Anderson
a771459bb1 Push LLVMContext _back_ through IRBuilder. 
llvm-svn: 75040
 2009-07-08 20:50:47 +00:00
Dan Gohman
7bb3173ff7 Tell ScalarEvolution to forget a loop before starting to delete it. 
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
Owen Anderson
b17f32945f Switch GlobalVariable ctors to a sane API, where *either* a context or a module is required. 
llvm-svn: 75025
 2009-07-08 19:03:57 +00:00
Nick Lewycky
a21d3daadc Remove the vicmp and vfcmp instructions. Because we never had a release with 
these instructions, no autoupgrade or backwards compatibility support is
provided.

llvm-svn: 74991
 2009-07-08 03:04:38 +00:00
Owen Anderson
5948fdf68b Push LLVMContext through GlobalVariables and IRBuilder. 
llvm-svn: 74985
 2009-07-08 01:26:06 +00:00
Dan Gohman
af75234955 Change all SCEV* to SCEV *. 
llvm-svn: 74918
 2009-07-07 17:06:11 +00:00
Owen Anderson
38264b1554 "LLVMContext* " --> "LLVMContext *" 
llvm-svn: 74878
 2009-07-06 23:00:19 +00:00
Owen Anderson
f1f1743b2e Finish LLVMContext-ing lib/Analysis. This required pushing LLVMContext's through the ValueTracking API. 
llvm-svn: 74873
 2009-07-06 22:37:39 +00:00
Owen Anderson
39f00cc1d4 Thread LLVMContext through the constant folding APIs, which touches a lot of files. 
llvm-svn: 74844
 2009-07-06 18:42:36 +00:00
Owen Anderson
605a8c743f More LLVMContext-ification. 
llvm-svn: 74811
 2009-07-06 01:34:54 +00:00
Owen Anderson
e70b637033 More LLVMContext-ification. 
llvm-svn: 74807
 2009-07-05 22:41:43 +00:00
Mike Stump
bbd8707f6e Fix build. 
llvm-svn: 74782
 2009-07-03 22:11:58 +00:00
Owen Anderson
340288c621 Even more passes being LLVMContext'd. 
llvm-svn: 74781
 2009-07-03 19:42:02 +00:00
Nick Lewycky
cb23509546 Add Static Single Information construction pass written by André Tavares! 
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
Duncan Sands
29c8efce31 Add newline at end of file. 
llvm-svn: 74773
 2009-07-03 15:30:58 +00:00
Owen Anderson
80baed63b4 Second batch of passes using LLVMContext. 
llvm-svn: 74753
 2009-07-03 00:54:20 +00:00
Owen Anderson
b5618da226 Convert the first batch of passes to use LLVMContext. 
llvm-svn: 74748
 2009-07-03 00:17:18 +00:00
Chris Lattner
f3f6aaa2c3 fix inverted logic pointed out by John McCall, noticed by inspection. 
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
Dan Gohman
43f33dd550 Fix a bunch of other places that used operator[] to test whether 
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
Dan Gohman
cf092389a9 Request LCSSA after LoopSimplify. This fixes a problem in which the 
PassManager was scheduling LCSSA before LoopSimplify, which does not
preserve LCSSA.

llvm-svn: 74661
 2009-07-01 23:21:38 +00:00
Dan Gohman
83348f80b6 Fix an instcombine abort on a scalar-to-vector bitcast. This fixes PR4487. 
llvm-svn: 74646
 2009-07-01 21:38:46 +00:00
Owen Anderson
6773d388aa Add a pointer to the owning LLVMContext to Module. This requires threading LLVMContext through a lot 
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
Chris Lattner
96122debc1 improve the APIs for creating struct and function types with no arguments/elements 
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
Dan Gohman
4dfc680059 Minor code simplification. 
llvm-svn: 74491
 2009-06-30 01:24:43 +00:00
Dan Gohman
317f054531 Don't try to split a loop when the controlling icmp instruction 
doesn't have an IV-based operand. This fixes PR4471.

llvm-svn: 74399
 2009-06-27 22:58:27 +00:00
Dan Gohman
ffdcba3dbd Remove the block from the LoopInfo, rather than just the Loop. 
LoopInfo will handle removing it from the Loop, as well as updating
its own tables.

llvm-svn: 74398
 2009-06-27 22:32:36 +00:00
Dan Gohman
c8ca49659a Teach LoopSimplify how to merge multiple loop exits into a single exit, 
when one of them can be converted to a trivial icmp and conditional
branch.

This addresses what is essentially a phase ordering problem.
SimplifyCFG knows how to do this transformation, but it doesn't do so
if the primary block has any instructions in it other than an icmp and
a branch. In the given testcase, the block contains other instructions,
however they are loop-invariant and can be hoisted. SimplifyCFG doesn't
have LoopInfo though, so it can't hoist them. And, it's important that
the blocks be merged before LoopRotation, as it doesn't support
multiple-exit loops.

llvm-svn: 74396
 2009-06-27 21:30:38 +00:00
Dan Gohman
8918b481bf More minor code simplifications. 
llvm-svn: 74395
 2009-06-27 21:23:40 +00:00
Dan Gohman
fe174b6952 When a value is used multiple times within a single PHI, instructions 
inserted to replace that value must dominate all of of the basic
blocks associated with the uses of the value in the PHI, not just
one of them.

llvm-svn: 74376
 2009-06-27 05:16:57 +00:00
Dan Gohman
daafbe6168 Incorporate the insertion point into the key of SCEVExpander's CSE map. 
This helps it avoid reusing an instruction that doesn't dominate all
of the users, in cases where the original instruction was inserted
before all of the users were known.  This may result in redundant
expansions of sub-expressions that depend on loop-unpredictable values
in some cases, however this isn't very common, and it primarily impacts
IndVarSimplify, so GVN can be expected to clean these up.

This eliminates the need for IndVarSimplify's FixUsesBeforeDefs,
which fixes several bugs.

llvm-svn: 74352
 2009-06-26 22:53:46 +00:00
Devang Patel
0f2eb5b9f7 Remove unused routines. 
llvm-svn: 74351
 2009-06-26 22:53:22 +00:00
Owen Anderson
01ad6605c0 Constify this value. 
llvm-svn: 74330
 2009-06-26 21:39:56 +00:00
Douglas Gregor
6d94e6a5f3 Fix linking of llvm-ld and lli with CMake, from Xerxes Rånby 
llvm-svn: 74285
 2009-06-26 15:37:00 +00:00
Devang Patel
0751a28888 Remove debug info anchors - llvm.dbg.compile_units, llvm.dbg.subprograms 
and llvm.dbg.global_variables.

llvm-svn: 74251
 2009-06-26 01:49:18 +00:00
Dan Gohman
ac3b5382b8 Change this code to a form about which VC++ reportedly isn't unhappy. 
llvm-svn: 74243
 2009-06-26 00:35:12 +00:00
Dan Gohman
7eaf50ecac Fix LCSSA to avoid emitting a PHI node for the unwind destination of 
an invoke instruction, since the value isn't really live across that
edge.

llvm-svn: 74242
 2009-06-26 00:31:13 +00:00
Dan Gohman
31167c61d5 Minor code simplification. 
llvm-svn: 74240
 2009-06-26 00:26:03 +00:00
Dan Gohman
091e440568 Reword a few comments. 
llvm-svn: 74146
 2009-06-25 00:22:44 +00:00
Dan Gohman
929fa7b0f4 When inserting code into a loop preheader, insert it before the 
terminator, instead of after the last phi. This fixes a bug
exposed by ScalarEvolution analyzing more kinds of loops.
This fixes PR4436.

llvm-svn: 74072
 2009-06-24 14:31:06 +00:00