Commit Graph

683 Commits

Author SHA1 Message Date
Dan Gohman
2f6263c96a Add a new ObjC ARC optimization pass to eliminate unneeded
autorelease push+pop pairs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148330 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17 20:52:24 +00:00
Dan Gohman
7d4c87ef6e Add a new PassManagerBuilder customization point,
EP_ModuleOptimizerEarly, to allow passes to be added before the
main ModulePass optimizers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148329 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17 20:51:32 +00:00
Mon P Wang
d24397a931 When not destroying the source, the linker is not remapping the types. Added support
to CloneFunctionInto to allow remapping for this case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147217 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-23 02:18:32 +00:00
David Blaikie
2d24e2a396 Unweaken vtables as per http://llvm.org/docs/CodingStandards.html#ll_virtual_anch
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146960 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-20 02:50:00 +00:00
Pete Cooper
2e33944c10 Refactor code used in InstCombine::FoldAndOfICmps to new file.
This will be used by SimplifyCfg in a later commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146803 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-17 01:20:32 +00:00
Kostya Serebryany
7bcfc9950b [asan] fix a bug (issue 19) where dlclose and the following mmap caused a false positive. compiler part.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146688 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-15 21:59:03 +00:00
Jakub Staszak
2fac1d5d61 SplitBlockPredecessors uses ArrayRef instead of Data and Size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146277 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-09 21:19:53 +00:00
Andrew Trick
5d73448bb7 Add -unroll-runtime for unrolling loops with run-time trip counts.
Patch by Brendon Cahoon!

This extends the existing LoopUnroll and LoopUnrollPass. Brendon
measured no regressions in the llvm test suite with -unroll-runtime
enabled. This implementation works by using the existing loop
unrolling code to unroll the loop by a power-of-two (default 8). It
generates an if-then-else sequence of code prior to the loop to
execute the extra iterations before entering the unrolled loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146245 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-09 06:19:40 +00:00
Eli Friedman
0572c7d31e Remove reference to dead GEPSplitterPass. PR11506.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146195 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-08 22:28:17 +00:00
Nick Lewycky
7c06741004 Expose a switch for the new gcov format.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145880 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-06 00:29:13 +00:00
Kostya Serebryany
af65a8c54b make asan work at -O0, llvm part. Patch by glider@google.com
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145530 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-30 22:19:26 +00:00
Eli Friedman
9d434dbff3 Add support for custom names for library functions in TargetLibraryInfo. Add a custom name for fwrite and fputs on x86-32 OSX. Make SimplifyLibCalls honor the custom
names for fwrite and fputs.

Fixes <rdar://problem/9815881>.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144876 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-17 01:27:36 +00:00
Kostya Serebryany
800e03f598 AddressSanitizer, first commit (compiler module only)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144758 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-16 01:35:23 +00:00
Benjamin Kramer
b5ccb25bc2 StringRefize and simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144675 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-15 19:12:09 +00:00
Benjamin Kramer
aa5354c3ba Make headers standalone, move a virtual method out of line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144536 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-14 17:22:45 +00:00
Devang Patel
2ad3f93b5f Add utility to append a function to the list of global constructors.
Patch by Kostya Serebryany.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143405 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-31 23:58:51 +00:00
Devang Patel
827454e6e2 svn mv Target/ARM/ARMGlobalMerge.cpp Transforms/Scalar/GlobalMerge.cpp
There is no reason to have simple IR level pass in lib/Target.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142200 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-17 17:17:43 +00:00
Andrew Trick
f143b79b78 LSR should avoid redundant edge splitting.
This handles the case in which LSR rewrites an IV user that is a phi and
splits critical edges originating from a switch.
Fixes <rdar://problem/6453893> LSR is not splitting edges "nicely"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141059 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-04 03:50:44 +00:00
Andrew Trick
2aeb8027d6 whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141058 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-04 03:34:49 +00:00
Bill Wendling
9e7013a506 Use ArrayRef instead of an explicit 'const std::vector &'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140172 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-20 19:05:04 +00:00
Rafael Espindola
f940a1a869 Remove the old tail duplication pass. It is not used and is unable to update
ssa, so it has to be run really early in the pipeline. Any replacement
should probably use the SSAUpdater.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138841 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-30 23:03:45 +00:00
Bill Wendling
7e8840c4d9 Add SplitLandingPadPredecessors().
SplitLandingPadPredecessors is similar to SplitBlockPredecessors in that it
splits the current block and attaches a set of predecessors to the new basic
block. However, it differs from SplitBlockPredecessors in that it's specifically
designed to handle landing pad blocks.

Two new basic blocks are created: one that is has the vector of predecessors as
its predecessors and one that has the remaining predecessors as its
predecessors. Those two new blocks then receive a cloned copy of the landingpad
instruction from the original block. The landingpad instructions are joined in a
PHI, etc. Like SplitBlockPredecessors, it updates the LLVM IR, AliasAnalysis,
DominatorTree, DominanceFrontier, LoopInfo, and LCCSA analyses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138014 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-19 00:05:40 +00:00
David Chisnall
7a817eae6c Add a mechanism for optimisation plugins to register passes that all front ends can use without needing to be aware of the plugin (or the plugin be aware of the front end).
Before 3.0, I'd like to add a mechanism for automatically loading a set of plugins from a config file.  API suggestions welcome...



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137717 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-16 13:58:41 +00:00
Andrew Trick
bddb7f8210 Cleanup. Make ScalarEvolution an explicit argument of the
SimplifyIndVar utility since it is required.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137202 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-10 04:22:26 +00:00
Andrew Trick
4b4bb71bcd Added a SimplifyIndVar utility to simplify induction variable users
based on ScalarEvolution without changing the induction variable phis.

This utility is the main tool of IndVarSimplifyPass, but the pass also
restructures induction variables in strange ways that are sensitive to
pass ordering. This provides a way for other loop passes to simplify
new uses of induction variables created during transformation. The
utility may be used by any pass that preserves ScalarEvolution. Soon
LoopUnroll will use it.

The net effect in this checkin is to cleanup the IndVarSimplify pass
by factoring out the SimplifyIndVar algorithm into a standalone utility.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137197 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-10 03:46:27 +00:00
Bill Wendling
2626dba9c5 Remove the LowerSetJmp pass. It wasn't used effectively by any of the targets.
This is some of my original LLVM code. *wipes tear*


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136821 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 22:18:20 +00:00
Jay Foad
e3fbe6c0fb Use cast<> instead of a C-style cast to get some free assertions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136771 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-03 10:05:04 +00:00
Rafael Espindola
c684e83e45 Move methods in PassManagerBuilder offline.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136727 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 21:50:27 +00:00
Rafael Espindola
3d453ac131 move PassManagerBuilder.h to IPO. This is a non intuitive place to put it,
but it solves a layering violation since things in Support are not supposed to
use things in Transforms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136726 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-02 21:50:24 +00:00
Jay Foad
8aa695dc6f Fix typo in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136068 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 09:36:52 +00:00
Andrew Trick
2045ce154a Move trip count discovery outside of the generic LoopUnroll helper. This
removes its dependence on canonical induction variables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135829 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23 00:33:05 +00:00
Chris Lattner
db125cfaf5 land David Blaikie's patch to de-constify Type, with a few tweaks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135375 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-18 04:54:35 +00:00
Chandler Carruth
ac7d295542 Make the destructor virtual to silence GCC's -Wnon-virtual-dtor. Let me
know if there is some problem with this destructor being virtual...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134867 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-10 08:38:12 +00:00
Chris Lattner
1afcace3a3 Land the long talked about "type system rewrite" patch. This
patch brings numerous advantages to LLVM.  One way to look at it
is through diffstat:
 109 files changed, 3005 insertions(+), 5906 deletions(-)

Removing almost 3K lines of code is a good thing.  Other advantages
include:

1. Value::getType() is a simple load that can be CSE'd, not a mutating
   union-find operation.
2. Types a uniqued and never move once created, defining away PATypeHolder.
3. Structs can be "named" now, and their name is part of the identity that
   uniques them.  This means that the compiler doesn't merge them structurally
   which makes the IR much less confusing.
4. Now that there is no way to get a cycle in a type graph without a named
   struct type, "upreferences" go away.
5. Type refinement is completely gone, which should make LTO much MUCH faster
   in some common cases with C++ code.
6. Types are now generally immutable, so we can use "Type *" instead 
   "const Type *" everywhere.

Downsides of this patch are that it removes some functions from the C API,
so people using those will have to upgrade to (not yet added) new API.  
"LLVM 3.0" is the right time to do this.

There are still some cleanups pending after this, this patch is large enough
as-is.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134829 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-09 17:41:24 +00:00
Devang Patel
231a5ab746 Simplify. Consolidate dbg.declare handling in AllocaPromoter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134538 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06 21:09:55 +00:00
Jakub Staszak
9da9934e27 Introduce "expect" intrinsic instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134516 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06 18:22:43 +00:00
John McCall
9fbd318d36 The ARC language-specific optimizer. Credit to Dan Gohman.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133108 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15 23:37:01 +00:00
Eli Friedman
e97c7da59d Remove unused code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133078 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15 19:58:09 +00:00
Cameron Zwarich
13a16083ab Clean up the lazy initialization of DIBuilder a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131956 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-24 06:00:08 +00:00
Cameron Zwarich
c827939046 Make LoadAndStorePromoter preserve debug info and create llvm.dbg.values when
promoting allocas to SSA variables. Fixes <rdar://problem/9479036>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131953 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-24 03:10:43 +00:00
Frits van Bommel
5649ba70fb Add a parameter to ConstantFoldTerminator() that callers can use to ask it to also clean up the condition of any conditional terminator it folds to be unconditional, if that turns the condition into dead code. This just means it calls RecursivelyDeleteTriviallyDeadInstructions() in strategic spots. It defaults to the old behavior.
I also changed -simplifycfg, -jump-threading and -codegenprepare to use this to produce slightly better code without any extra cleanup passes (AFAICT this was the only place in -simplifycfg where now-dead conditions of replaced terminators weren't being cleaned up). The only other user of this function is -sccp, but I didn't read that thoroughly enough to figure out whether it might be holding pointers to instructions that could be deleted by this.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131855 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-22 16:24:18 +00:00
Bill Wendling
f5c95b889f Conditionalize the format of the GCOV files by target type. Darwin uses the 4.2
format.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131503 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17 23:05:13 +00:00
Devang Patel
40348e8d1f Assing line number info to new PHIs created by SSA updater.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130551 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-29 22:28:59 +00:00
Nick Lewycky
a61e52c9b7 Add independent controls for whether GCOV profiling should emit .gcno files or
instrument the program to emit .gcda.
TODO: we should emit slightly different .gcda files when .gcno emission is off.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129903 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21 01:56:25 +00:00
Nick Lewycky
b192870420 Rename LineProfiling to GCOVProfiling to more accurately represent what it
does. Also mostly implement it. Still a work-in-progress, but generates legal
output on crafted test cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129630 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-16 01:20:23 +00:00
Chris Lattner
7a2bdde0a0 Fix a ton of comment typos found by codespell. Patch by
Luis Felipe Strano Moraes!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-15 05:18:47 +00:00
Junjie Gu
32644d9bfd Passing unroll parameters (unroll-count, threshold, and partial unroll) via LoopUnroll class's ctor. Doing so
will allow multiple context with different loop unroll parameters to run.  This is a minor change and no effect 
on existing application.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129449 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-13 16:15:29 +00:00
Nick Lewycky
93b68b20d4 Add support for line profiling. Very work-in-progress.
Use debug info in the IR to find the directory/file:line:col. Each time that location changes, bump a counter.

Unlike the existing profiling system, we don't try to look at argv[], and thusly don't require main() to be present in the IR. This matches GCC's technique where you specify the profiling flag when producing each .o file.

The runtime library is minimal, currently just calling printf at program shutdown time. The API is designed to make it possible to emit GCOV data later on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129340 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 01:06:09 +00:00
Chris Lattner
b5f18f5df0 remove the StructRetPromotion pass. It is unused, not maintained and
has some bugs.  If this is interesting functionality, it should be 
reimplemented in the argpromotion pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129314 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-11 23:09:44 +00:00
Eli Friedman
71ad2c9eda PR9446: RecursivelyDeleteTriviallyDeadInstructions can delete the instruction
after the given instruction; make sure to handle that case correctly.
(It's difficult to trigger; the included testcase involves a dead 
block, but I don't think that's a requirement.) 

While I'm here, get rid of the unnecessary warning about
SimplifyInstructionsInBlock, since it should work correctly as far as I know.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128782 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-02 22:45:17 +00:00