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12c8d5f5fe
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263 Commits

Author SHA1 Message Date
Chris Lattner
12c8d5f5fe improve IPSCCP to be able to propagate the result of "!mayBeOverridden" 
function to calls of that function, regardless of whether it has local
linkage or has its address taken.  Not escaping should only affect 
whether we make an aggressive assumption about the arguments to a 
function, not whether we can track the result of it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85795 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 07:33:59 +00:00
Chris Lattner
ff3ca15951 don't mark the arguments of prototype overdefined, they will never be queried. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85793 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 06:34:04 +00:00
Chris Lattner
e01985c95f restore some code I removed in r85788, refactor it into 
a shared place instead of duplicating it 4 times.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85792 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 06:28:16 +00:00
Chris Lattner
574fa9e83c remove some confused code that dates from when we had 
"multiple return values" but not "first class aggregates"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85791 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 06:17:06 +00:00
Chris Lattner
09275299e2 avoid redundant lookups in BBExecutable, and make it a SmallPtrSet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85790 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 06:11:23 +00:00
Chris Lattner
5638dc618a Use the libanalysis 'ConstantFoldLoadFromConstPtr' function 
instead of reinventing SCCP-specific logic.  This gives us
new powers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85789 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 06:06:14 +00:00
Chris Lattner
2a0433beea switch the main 'ValueState' map from being an std::map to being 
a DenseMap.  Doing this required being aware of subtle iterator
invalidation issues, but it provides a big speedup.  In a 
release-asserts build, this sped up optimizing 403.gcc from
1.34s -> 0.79s (IPSCCP) and 1.11s -> 0.44s (SCCP).

This commit also conflates in a bunch of general cleanups, sorry.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85788 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 05:55:40 +00:00
Chris Lattner
89112b608f only IPSCCP incoming arguments if the function is executable, this fixes 
an assertion on the buildbot.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85784 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 03:25:55 +00:00
Chris Lattner
36c9952b1b add a new ValueState::getConstantInt() helper, use it to 
simplify some code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85783 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 03:21:36 +00:00
Chris Lattner
38871e4c3b tidy up some more: remove some extraneous inline specifiers, return harder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85780 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 03:03:42 +00:00
Chris Lattner
8db50122a4 eliminate the SCCPSolver::getValueMapping method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85778 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 02:54:24 +00:00
Chris Lattner
301a2792be fix failures introduced in r85774 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85777 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 02:48:17 +00:00
Chris Lattner
cc4f60b113 factor duplicated code into a new DeleteInstructionInBlock 
function, eliminate temporary (and pointless) smallvector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85776 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 02:47:51 +00:00
Chris Lattner
2f09625a9f Chris used to use '...' instead of proper grammar. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85775 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 02:33:50 +00:00
Chris Lattner
ea0db070a1 remove some extraneous llvmcontext stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85774 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 02:30:06 +00:00
Chris Lattner
7927220aef change LatticeVal to use PointerIntPair to save some space. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85773 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-02 02:20:32 +00:00
Chris Lattner
b2710041fb teach ipsccp and ipconstprop that a blockaddress doesn't 'take the address' of a function 
in a way that should prevent ip constprop.  This allows clang/test/CodeGen/indirect-goto.c
to pass with the new indirect goto lowering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85709 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-01 06:11:53 +00:00
Chris Lattner
4c0236fd8b teach various passes about blockaddress. We no longer 
crash on any clang tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85465 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-29 01:21:20 +00:00
Victor Hernandez
f006b183e2 Rename MallocFreeHelper as MemoryBuiltins 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85286 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-27 20:05:49 +00:00
Victor Hernandez
f2becca90b Rename MallocHelper as MallocFreeHelper, since it now also identifies calls to free() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85181 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-26 23:58:56 +00:00
Victor Hernandez
046e78ce55 Remove FreeInst. 
Remove LowerAllocations pass.
Update some more passes to treate free calls just like they were treating FreeInst.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85176 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-26 23:43:48 +00:00
Victor Hernandez
66284e063a Auto-upgrade free instructions to calls to the builtin free function. 
Update all analysis passes and transforms to treat free calls just like FreeInst.
Remove RaiseAllocations and all its tests since FreeInst no longer needs to be raised.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84987 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-24 04:23:03 +00:00
Victor Hernandez
7b929dad59 Remove AllocationInst. Since MallocInst went away, AllocaInst is the only subclass of AllocationInst, so it no longer is necessary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84969 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-23 21:09:37 +00:00
Torok Edwin
2b6183d254 Fix PR4313: IPSCCP was not setting the lattice value for the invoke instruction 
when the invoke had multiple return values: it set the lattice value only on the
extractvalue.
This caused the invoke's lattice value to remain the default (undefined), and
later propagated to extractvalue's operand, which incorrectly introduces
undefined behavior.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84637 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-20 15:15:09 +00:00
Dan Gohman
c6f69e94fa Remove an unnnecessary LLVMContext argument in 
ConstantFoldLoadThroughGEPConstantExpr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83311 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 16:36:26 +00:00
Chris Lattner
cf0fe8d813 strength reduce a ton of type equality tests to check the typeid (Through 
the new predicates I added) instead of going through a context and doing a
pointer comparison.  Besides being cheaper, this allows a smart compiler
to turn the if sequence into a switch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83297 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-10-05 05:54:46 +00:00
Chris Lattner
32c0d2255f calls to external functions are already marked overdefined, special casing 
malloc isn't needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82932 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:35:11 +00:00
Torok Edwin
c338499525 Constant propagating byval pointer is safe if function is readonly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82700 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-24 18:33:42 +00:00
Torok Edwin
30a94e3b42 Don't constant propagate byval pointers, since they are not really pointers, but 
rather structs passed by value.
This fixes PR5038.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82689 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-24 09:47:18 +00:00
Victor Hernandez
83d63919bd Enhance transform passes so that they apply the same tranforms to malloc calls as to MallocInst. 
Reviewed by Dan Gohman.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82300 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-18 22:35:49 +00:00
Chris Lattner
3e8b6631e6 eliminate VISIBILITY_HIDDEN from Transforms/Scalar. PR4861 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80766 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-02 06:11:42 +00:00
Chris Lattner
8a67ac525e add getPointerAddressSpace() to GEP instruction, use the method 
in a few scalar xforms to simplify things.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80506 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-30 20:06:40 +00:00
Chris Lattner
bdff548e4d eliminate the "Value" printing methods that print to a std::ostream. 
This required converting a bunch of stuff off DOUT and other cleanups.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79819 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-23 04:37:46 +00:00
Dan Gohman
8732577230 Fix debug output to include a newline after printing a Value, now 
that Value's operator<< doesn't include one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79240 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 15:25:05 +00:00
Owen Anderson
1d0be15f89 Push LLVMContexts through the IntegerType APIs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78948 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-13 21:58:54 +00:00
Owen Anderson
a7235ea724 Move a few more APIs back to 2.5 forms. The only remaining ones left to change back are 
metadata related, which I'm waiting on to avoid conflicting with Devang.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77721 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-31 20:28:14 +00:00
Owen Anderson
5defacc6e6 Move getTrue() and getFalse() to 2.5-like APIs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77685 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-31 17:39:07 +00:00
Owen Anderson
9e9a0d5fc2 Move more code back to 2.5 APIs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77635 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-30 23:03:37 +00:00
Owen Anderson
baf3c40440 Move ConstantExpr to 2.5 API. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77494 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-29 18:55:55 +00:00
Daniel Dunbar
93b67e40de Eliminate some uses of DOUT, cerr, and getNameStart(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77145 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-26 07:49:05 +00:00
Daniel Dunbar
ce63ffb52f More migration to raw_ostream, the water has dried up around the iostream hole. 
- Some clients which used DOUT have moved to DEBUG. We are deprecating the
   "magic" DOUT behavior which avoided calling printing functions when the
   statement was disabled. In addition to being unnecessary magic, it had the
   downside of leaving code in -Asserts builds, and of hiding potentially
   unnecessary computations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77019 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 00:23:56 +00:00
Owen Anderson
e922c02019 Get rid of the Pass+Context magic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76702 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-22 00:24:57 +00:00
Owen Anderson
b3056faa55 Rename getConstantInt{True|False} to get{True|False} at Chris' behest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76598 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-21 18:03:38 +00:00
Owen Anderson
001dbfebcb Move the ConstantInt uniquing table into LLVMContextImpl. This exposed a number of issues in 
our current context-passing stuff, which is also fixed here


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76089 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-16 18:04:31 +00:00
Torok Edwin
c23197a26f llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable. 
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").


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75640 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-14 16:55:14 +00:00
Owen Anderson
73c6b7127a Move more functionality over to LLVMContext. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75497 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-13 20:58:05 +00:00
Torok Edwin
c25e7581b9 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75379 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-11 20:10:48 +00:00
Torok Edwin
7d696d8040 Convert more assert(0)+abort() -> LLVM_UNREACHABLE, 
and abort()/exit() -> llvm_report_error().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75363 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-11 13:10:19 +00:00
Owen Anderson
07cf79ef53 "LLVMContext* " --> "LLVMContext *" 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74878 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-06 23:00:19 +00:00
Owen Anderson
76f600b205 Finish LLVMContext-ing lib/Analysis. This required pushing LLVMContext's through the ValueTracking API. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74873 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-06 22:37:39 +00:00