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* Change these tests to feed the assembly files to opt directly, insteadDan Gohman2009-09-081230-1333/+1333
| | | | | | | of using llvm-as, now that opt supports this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81226 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-apply r80926, with fixes: keep the domtree informed of new blocksDan Gohman2009-09-082-52/+645
| | | | | | | | | | | | | | | | that get created during loop unswitching, and fix SplitBlockPredecessors' LCSSA updating code to create new PHIs instead of trying to just move existing ones. Also, optimize Loop::verifyLoop, since it gets called a lot. Use searches on a sorted list of blocks instead of calling the "contains" function, as is done in other places in the Loop class, since "contains" does a linear search. Also, don't call verifyLoop from LoopSimplify or LCSSA, as the PassManager is already calling verifyLoop as part of LoopInfo's verifyAnalysis. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81221 91177308-0d34-0410-b5e6-96231b3b80d8
* instcombine transforms vector loads that are only used byChris Lattner2009-09-081-0/+13
| | | | | | | | | | | | | | | | | | | | | | extractelement operations into a bitcast of the pointer, then a gep, then a scalar load. Disable this when the vector only has one element, because it leads to infinite loops in instcombine (PR4908). This transformation seems like a really bad idea to me, as it will likely disable CSE of vector load/stores etc and can be better done in the code generator when profitable. This goes all the way back to the first days of packed types, r25299 specifically. I'll let those people who care about the performance of vector code decide what to do with this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81185 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR4882, by making MemCpyOpt not dereference removed stores to get theChris Lattner2009-09-081-0/+45
| | | | | | | | | context for the newly created operations. Patch by Jakub Staszak! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81175 91177308-0d34-0410-b5e6-96231b3b80d8
* fix ComputeMaskedBits handling of zext/sext/trunc to work with vectors.Chris Lattner2009-09-081-2/+21
| | | | | | | This fixes PR4905 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81174 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a testcase for the GlobalOpt inbounds fix.Dan Gohman2009-09-071-0/+23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81168 91177308-0d34-0410-b5e6-96231b3b80d8
* Add inbounds to these getelementptrs, now that GlobalOpt requires this,Dan Gohman2009-09-072-4/+4
| | | | | | | to preserve the meaning of these tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81166 91177308-0d34-0410-b5e6-96231b3b80d8
* tighten test.Chris Lattner2009-09-071-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81159 91177308-0d34-0410-b5e6-96231b3b80d8
* tweak test, add PR#Chris Lattner2009-09-071-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81158 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't depend on Tcl behavior of redirecting stderr for all commands in aDaniel Dunbar2009-09-072-2/+2
| | | | | | pipeline. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81153 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r80926. It causes loop unswitch assertion and slow down some JIT ↵Evan Cheng2009-09-061-0/+52
| | | | | | tests significantly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81101 91177308-0d34-0410-b5e6-96231b3b80d8
* Quote another '%S' in a test.Daniel Dunbar2009-09-051-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81088 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate uses of %prcontext.Daniel Dunbar2009-09-0511-19/+40
| | | | | | | - I'd appreciate it if someone else eyeballs my changes to make sure I captured the intent of the test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81083 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate some Tclisms.Daniel Dunbar2009-09-051-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81081 91177308-0d34-0410-b5e6-96231b3b80d8
* While replacing an MDNode elment, properly update MDNode's operand list. Devang Patel2009-09-041-0/+264
| | | | | | | MDNode's operand list does not include all elements. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81045 91177308-0d34-0410-b5e6-96231b3b80d8
* Change PHINode::hasConstantValue to have a DominatorTree argumentDan Gohman2009-09-031-1/+1
| | | | | | | | | instead of a bool argument, and to do the dominator check itself. This makes it eaiser to use when DominatorTree information is available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80920 91177308-0d34-0410-b5e6-96231b3b80d8
* In C++, code is not allowed to call main. In C it is, thisChris Lattner2009-09-031-15/+0
| | | | | | | | | | | | simplifylibcalls optimization is thus valid for C++ but not C. It's not important enough to worry about for C++ apps, so just remove it. rdar://7191924 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80887 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix month.Chris Lattner2009-09-021-0/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80769 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR4815: some cases where DeleteDeadInstruction can deleteChris Lattner2009-09-021-0/+26
| | | | | | | the instruction BBI points to. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80768 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR4848 an infinite loop when indexing down through a recursive gepChris Lattner2009-09-021-0/+24
| | | | | | | | and we get the original pointer type. This doesn't mean that we're at the first pointer being indexed. Correct the predicate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80762 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR4837, some bugs folding vector compares. TheseChris Lattner2009-09-021-0/+6
| | | | | | | return a vector of i1, not i1 itself. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80761 91177308-0d34-0410-b5e6-96231b3b80d8
* enhance memcpy opt to turn memmoves into memcpy when the src/destChris Lattner2009-09-012-107/+37
| | | | | | | | don't alias. Remove an old and poorly reduced testcase that fails with this transform for reasons unrelated to the original test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80693 91177308-0d34-0410-b5e6-96231b3b80d8
* testcase for PR3601Chris Lattner2009-09-011-0/+33
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80664 91177308-0d34-0410-b5e6-96231b3b80d8
* Change CallGraphNode to maintain it's Function as an AssertingVHChris Lattner2009-09-011-0/+23
| | | | | | | | | | | | | for sanity. This didn't turn up any bugs. Change CallGraphNode to maintain its "callsite" information in the call edges list as a WeakVH instead of as an instruction*. This fixes a broad class of dangling pointer bugs, and makes CallGraph have a number of useful invariants again. This fixes the class of problem indicated by PR4029 and PR3601. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80663 91177308-0d34-0410-b5e6-96231b3b80d8
* fix a crash building SPASS by tolerating a callsite that doesn't existChris Lattner2009-08-311-0/+57
| | | | | | | in the callgraph, see the big comment at the top of the testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80541 91177308-0d34-0410-b5e6-96231b3b80d8
* fix a bug I introduced with my 'instcombine builder' refactoring Chris Lattner2009-08-311-0/+14
| | | | | | | | | changes: SimplifyDemandedBits can't use the builder yet because it has the wrong insertion point. This fixes a crash building MultiSource/Benchmarks/PAQ8p git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80537 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR4834, a tricky case where the inliner would resolve anChris Lattner2009-08-311-0/+16
| | | | | | | | | | | | | | | | indirect function pointer, inline it, then go to delete the body. The problem is that the callgraph had other references to the function, though the inliner had no way to know it, so we got a dangling pointer and an invalid iterator out of the deal. The fix to this is pretty simple: stop the inliner from deleting the function by knowing that there are references to it. Do this by making CallGraphNodes contain a refcount. This requires moving deletion of available_externally functions to the module-level cleanup sweep where it belongs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80533 91177308-0d34-0410-b5e6-96231b3b80d8
* rename testChris Lattner2009-08-301-0/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80523 91177308-0d34-0410-b5e6-96231b3b80d8
* merge all sinking tests into one and convert them to filecheck.Chris Lattner2009-08-3013-223/+264
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80522 91177308-0d34-0410-b5e6-96231b3b80d8
* convert scalar_promote to filecheck style and merge ↵Chris Lattner2009-08-302-23/+45
| | | | | | 2003-12-13-VolatilePromote.ll into it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80521 91177308-0d34-0410-b5e6-96231b3b80d8
* suck a bunch more gep tests into getelementptr.ll and filecheckize them all.Chris Lattner2009-08-3019-813/+271
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80517 91177308-0d34-0410-b5e6-96231b3b80d8
* consolodate various GEP tests into getelementptr.ll using filecheck.Chris Lattner2009-08-308-158/+106
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80514 91177308-0d34-0410-b5e6-96231b3b80d8
* another huge testcase, this time from 'gs' in llvm-test.Chris Lattner2009-08-301-519/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80513 91177308-0d34-0410-b5e6-96231b3b80d8
* remove another poorly-reduced testcase which came from ldecod in llvm-test.Chris Lattner2009-08-301-444/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80512 91177308-0d34-0410-b5e6-96231b3b80d8
* this testcase is 500 lines long and is distilled from bzip2, justChris Lattner2009-08-301-508/+0
| | | | | | | remove it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80511 91177308-0d34-0410-b5e6-96231b3b80d8
* convert to filecheckChris Lattner2009-08-301-25/+44
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80510 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR4748: don't fold gep(bitcast(x)) into bitcast(gep) when x Chris Lattner2009-08-301-0/+21
| | | | | | | | | | is itself a bitcast. Since we have gep(bitcast(bitcast(y))) in this case, just wait for the two bitcasts to get zapped. This prevents instcombine from confusing some aliasing stuff, and allows it to directly eliminate the load in the testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80508 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply 79977.Devang Patel2009-08-281-2/+0
| | | | | | | Use MDNodes to encode debug info in llvm IR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80406 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR3913, patch by Jakub Staszak!Chris Lattner2009-08-281-0/+24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80327 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement a new optimization in the inliner: if inlining multipleChris Lattner2009-08-271-0/+26
| | | | | | | | | | | | | | | | | | | | | calls into a function and if the calls bring in arrays, try to merge them together to reduce stack size. For example, in the testcase we'd previously end up with 4 allocas, now we end up with 2 allocas. As described in the comments, this is not really the ideal solution to this problem, but it is surprisingly effective. For example, on 176.gcc, we end up eliminating 67 arrays at "gccas" time and another 24 at "llvm-ld" time. One piece of concern that I didn't look into: at -O0 -g with forced inlining this will almost certainly result in worse debug info. I think this is acceptable though given that this is a case of "debugging optimized code", and we don't want debug info to prevent the optimizer from doing things anyway. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80215 91177308-0d34-0410-b5e6-96231b3b80d8
* the inliner shouldn't crash on this.Chris Lattner2009-08-271-0/+31
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80214 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 79977. It causes llvm-gcc bootstrap failures on some platforms.Devang Patel2009-08-261-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80073 91177308-0d34-0410-b5e6-96231b3b80d8
* Special-case static allocas in IndVarSimplify's loop invariantDan Gohman2009-08-251-0/+31
| | | | | | | | | sinking code, since they are special. If the loop preheader happens to be the entry block of a function, don't sink static allocas out of it. This fixes PR4775. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80010 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove obsolete -f flags.Dan Gohman2009-08-253-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79992 91177308-0d34-0410-b5e6-96231b3b80d8
* Update DebugInfo interface to use metadata, instead of special named ↵Devang Patel2009-08-251-2/+0
| | | | | | | | | llvm.dbg.... global variables, to encode debugging information in llvm IR. This is mostly a mechanical change that tests metadata support very well. This change speeds up llvm-gcc by more then 6% at "-O0 -g" (measured by compiling InstructionCombining.cpp!) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79977 91177308-0d34-0410-b5e6-96231b3b80d8
* Change getelementptr folding to use APInt instead of uint64_t forDan Gohman2009-08-211-3/+19
| | | | | | | | offset computations. This fixes a truncation bug on targets that don't have 64-bit pointers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79639 91177308-0d34-0410-b5e6-96231b3b80d8
* Add targetdata strings to these tests, since SimplifyLibCalls usesDan Gohman2009-08-198-2/+32
| | | | | | | TargetData to find the pointer size. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79490 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug in the over-index constant folding. When over-indexing anDan Gohman2009-08-191-0/+17
| | | | | | | | | array member of a struct, it's possible to land in an arbitrary position inside that struct, such that attempting to find further getelementptr indices will fail. In such cases, folding cannot be done. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79485 91177308-0d34-0410-b5e6-96231b3b80d8
* Canonicalize indices in a constantexpr GEP. If Indices exceed theDan Gohman2009-08-191-0/+50
| | | | | | | | | static extents of the static array type, it causes GlobalOpt and other passes to be more conservative. This canonicalization also allows the constant folder to add "inbounds" to GEPs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79440 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix up PHI nodes correctly in the presence of unreachable BBs, part two. AlsoNick Lewycky2009-08-191-0/+22
| | | | | | | delete a newed pointer, and improve readability a little bit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79411 91177308-0d34-0410-b5e6-96231b3b80d8
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