Commit Graph

211 Commits

Author SHA1 Message Date
Nick Lewycky
d7f20b6b98 Don't crash on multiple return value with no obvious inserted value.
Fixes PR4314.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73007 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-06 23:13:08 +00:00
Nick Lewycky
e3f1fb1ee8 Use Operands.data() instead of &Operands[0] where Operands is a potentially
empty SmallVector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72512 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-28 04:08:10 +00:00
Duncan Sands
64da9409cb Factorize out a concept - no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67454 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-21 21:27:31 +00:00
Duncan Sands
ab6b226978 Don't load values out of global constants with weak
linkage: the value may be replaced with something
different at link time.  (Frontends that want to
allow values to be loaded out of weak constants can
give their constants weak_odr linkage).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67407 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-20 21:53:29 +00:00
Rafael Espindola
bb46f52027 Add the private linkage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62279 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-15 20:18:42 +00:00
Chris Lattner
d9d46241ec Fix PR3325, a miscompilation of invokes by IPSCCP. Patch by Jay Foad!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62244 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-14 21:01:16 +00:00
Devang Patel
cb9a354d13 Fix unused variable warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59778 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 01:52:59 +00:00
Nick Lewycky
af38613e31 Replace explicit loop with utility function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58593 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-03 03:49:14 +00:00
Dan Gohman
ae73dc1448 Tidy up several unbeseeming casts from pointer to intptr_t.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55779 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 17:05:41 +00:00
Chris Lattner
7eb01bfc16 improve encapsulation of the BBExecutable set.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55271 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-23 23:39:31 +00:00
Chris Lattner
cf712dee93 Switch an assortment of maps, sets and vectors to more efficient versions,
patch contributed by m-s!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55270 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-23 23:36:38 +00:00
Bill Wendling
7a7cf6b984 Temporarily revert r54792. It's causing an ICE during bootstrapping.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54804 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-14 23:05:24 +00:00
Devang Patel
1df183f554 Use DenseMap. Patch by Pratik Solanki.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54792 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-14 21:31:10 +00:00
Dan Gohman
2edeb63ece Fix SCCP's handling of struct value loads and stores. SCCP doesn't
track individual leaf values in such cases, so it needs to treat
struct values as normal values in this case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54760 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-13 21:22:48 +00:00
Dan Gohman
fc74abfba5 Enable first-class aggregates support.
Remove the GetResultInst instruction. It is still accepted in LLVM assembly
and bitcode, where it is now auto-upgraded to ExtractValueInst. Also, remove
support for return instructions with multiple values. These are auto-upgraded
to use InsertValueInst instructions.

The IRBuilder still accepts multiple-value returns, and auto-upgrades them
to InsertValueInst instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53941 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-23 00:34:11 +00:00
Dan Gohman
60ea268645 Tidy up some commments and use the getAggregateOperand and
getInsertedValueOperand accessors. Thanks Matthijs!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52543 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 16:41:17 +00:00
Dan Gohman
dfaceb49fc Fix the conditions under which SCCP should examine insertvalue
instructions. Thanks to Matthijs Kooijman for pointing this out!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52542 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 16:39:44 +00:00
Dan Gohman
c4b65ea56b Teach SCCP about insertvalue and extractvalue, and about
propagating constants across aggregate return values when
insertvalue and extractvalue are used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52520 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-20 01:15:44 +00:00
Chris Lattner
60301608f8 Fix PR2358 by resolving calls with undef arguments to overdefined.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51535 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-24 03:59:33 +00:00
Dale Johannesen
9bca583f9d Allow for switch with no cases. Was causing fault
in gcc.dg/pr27531-1.c.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51464 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-23 01:01:31 +00:00
Dan Gohman
844731a7f1 Clean up the use of static and anonymous namespaces. This turned up
several things that were neither in an anonymous namespace nor static
but not intended to be global.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51017 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-13 00:00:25 +00:00
Chris Lattner
5c8e8d7fc5 Fix various DOUTs to not call the extremely expensive Value::getName()
method.  DOUT statements are disabled when assertions are off, but the
side effects of getName() are still evaluated.  Just call getNameSTart,
which is close enough and doesn't cause heap traffic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50958 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-11 01:55:59 +00:00
Chris Lattner
3a73c9e5f9 Simplify code by using SwitchInst::findCaseValue instead of reimplementing it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50957 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-10 23:56:54 +00:00
Nick Lewycky
280a6e607d Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989
r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50265 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 16:53:59 +00:00
Chris Lattner
eb5f4092d9 code restructuring, not functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50203 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24 00:21:50 +00:00
Chris Lattner
7cb22ecf22 Don't replace multiple result of calls with undef,
sccp tracks getresult values, not call values in this
case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50202 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24 00:19:54 +00:00
Chris Lattner
f4023a1ef6 code cleanup, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50201 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24 00:16:28 +00:00
Chris Lattner
c6ee00b8ee Rewrite multiple return value handling in SCCP. Before, the -sccp pass
would turn every getresult instruction into undef.  This helps with
rdar://5778210


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50140 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 05:38:20 +00:00
Devang Patel
d4e0af9f89 Be conservative if getresult operand is neither call nor invoke.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49430 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09 15:58:24 +00:00
Gabor Greif
051a950000 API changes for class Use size reduction, wave 1.
Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49277 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-06 20:25:17 +00:00
Dan Gohman
c9235d2e85 Don't include <map> in Pass.h, which doesn't need it. This requires
adding <map> to many files that actually do need it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48667 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21 23:51:57 +00:00
Devang Patel
9af014f80c Add TODO reminder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48227 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 17:32:05 +00:00
Devang Patel
7c490d4104 Initial multiple return values support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48210 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 05:46:42 +00:00
Nick Lewycky
a66696ef0d SCCP also needs to be taught to follow unwind_to
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48109 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09 09:44:38 +00:00
Nick Lewycky
6c36a0f9ee Not all users of a BB are Instructions any more.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48047 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-08 07:48:41 +00:00
Anton Korobeynikov
07e6e56f57 Make Transforms to be 4.3 warnings-clean
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47371 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20 11:26:25 +00:00
Chris Lattner
05bb789430 Fix PR1938 by forcing the code that uses an undefined value to branch one
way or the other.  Rewriting the code itself prevents subsequent analysis
passes from making contradictory conclusions about the code that could 
cause an infeasible path to be made feasible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46427 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-28 00:32:30 +00:00
Chris Lattner
4ee451de36 Remove attribution from file headers, per discussion on llvmdev.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45418 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 20:36:04 +00:00
Christopher Lamb
b15147ea4c Disable null pointer folding transforms for non-generic address spaces. This should probably be a target-specific predicate based on address space. That way for targets where this isn't applicable the predicate can be optimized away.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45403 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 07:56:53 +00:00
Dan Gohman
cb406c2597 Use empty() member functions when that's what's being tested for instead
of comparing begin() and end().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42585 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-03 19:26:29 +00:00
Duncan Sands
e2abf12436 Place SCCPSolver also in the anonymous namespace. This
pacifies g++-4.2.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40089 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-20 08:56:21 +00:00
Devang Patel
9f26f73179 Fix PR1431
Test case at Transformations/SCCP/2007-05-16-InvokeCrash.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37185 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-17 22:10:15 +00:00
Nick Lewycky
ecd94c804a Fix typo in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36873 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-06 13:37:16 +00:00
Devang Patel
1997473cf7 Drop 'const'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36662 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-03 01:11:54 +00:00
Devang Patel
3e15bf33e0 Use 'static const char' instead of 'static const int'.
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36652 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-02 21:39:20 +00:00
Devang Patel
794fd75c67 Do not use typeinfo to identify pass in pass manager.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36632 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-01 21:15:47 +00:00
Chris Lattner
e34e9a29dc fix long lines
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36031 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-14 23:32:02 +00:00
Chris Lattner
57939df2eb minor cleanups
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34904 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-04 04:50:21 +00:00
Reid Spencer
9d6565a5b1 For PR1195:
Rename PackedType -> VectorType, ConstantPacked -> ConstantVector, and
PackedTyID -> VectorTyID. No functional changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34293 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-15 02:26:10 +00:00
Reid Spencer
9133fe2895 Apply the VISIBILITY_HIDDEN field to the remaining anonymous classes in
the Transforms library. This reduces debug library size by 132 KB, debug
binary size by 376 KB, and reduces link time for llvm tools slightly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33939 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-05 23:32:05 +00:00