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2009-07-01Add a pointer to the owning LLVMContext to Module. This requires threading ↵Owen Anderson
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74614 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-01improve the APIs for creating struct and function types with no ↵Chris Lattner
arguments/elements to not have to create a temporary vector (in the API at least). Patch by Jay Foad! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74584 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-30Minor code simplification.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74491 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-27Remove the block from the LoopInfo, rather than just the Loop.Dan Gohman
LoopInfo will handle removing it from the Loop, as well as updating its own tables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74398 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-27Teach LoopSimplify how to merge multiple loop exits into a single exit,Dan Gohman
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74396 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-26Remove unused routines.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74351 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-26Fix linking of llvm-ld and lli with CMake, from Xerxes RånbyDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74285 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-26Fix LCSSA to avoid emitting a PHI node for the unwind destination ofDan Gohman
an invoke instruction, since the value isn't really live across that edge. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74242 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-16Generalize instcombine's isSafeToLoadUnconditionally() functionChris Lattner
to ignore readonly calls, and factor it out of instcombine so that it can be used by other passes. Patch by Frits van Bommel! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73506 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-15Fix the crash in this test. This is basically the sameDale Johannesen
problem addressed in 31284, but the patch there only addressed the case where an invoke is the first thing in a block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73416 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-14Fix old-style type names in comments.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73362 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-04Split the Add, Sub, and Mul instruction opcodes into separateDan Gohman
integer and floating-point opcodes, introducing FAdd, FSub, and FMul. For now, the AsmParser, BitcodeReader, and IRBuilder all preserve backwards compatability, and the Core LLVM APIs preserve backwards compatibility for IR producers. Most front-ends won't need to change immediately. This implements the first step of the plan outlined here: http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72897 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-30Give embedded metadata its own type instead of relying on EmptyStructTy.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72610 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-23available_externall linkage is not local, this was confusing the codegenerator,Torok Edwin
and it wasn't generating calls through @PLT for these functions. hasLocalLinkage() is now false for available_externally, I attempted to fix the inliner and dce to handle available_externally properly. It passed make check. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72328 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-19Teach SCEVExpander to expand arithmetic involving pointers into GEPDan Gohman
instructions. It attempts to create high-level multi-operand GEPs, though in cases where this isn't possible it falls back to casting the pointer to i8* and emitting a GEP with that. Using GEP instructions instead of ptrtoint+arithmetic+inttoptr helps pointer analyses that don't use ScalarEvolution, such as BasicAliasAnalysis. Also, make the AddrModeMatcher more aggressive in handling GEPs. Previously it assumed that operand 0 of a GEP would require a register in almost all cases. It now does extra checking and can do more matching if operand 0 of the GEP is foldable. This fixes a problem that was exposed by SCEVExpander using GEPs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72093 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-14Reuse existing getUnderlyingObject instead ofDale Johannesen
adding another copy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71783 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-13Handle some additonal cases of external weak globals.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71717 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-13Don't generate a select whose operand is load of a weakDale Johannesen
external. These may have address 0 and are not safe to execute unconditionally. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71688 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-09Rename PaddedSize to AllocSize, in the hope that thisDuncan Sands
will make it more obvious what it represents, and stop it being confused with the StoreSize. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71349 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-08PR4123: don't crash when inlining a call which uses its own result.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71199 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-06Simplify code by using SmallVector's pop_back_val() instead ofDan Gohman
separate back() and pop_back() calls. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71089 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-06Allow readonly functions to unwind exceptions. TeachDuncan Sands
the optimizers about this. For example, a readonly function with no uses cannot be removed unless it is also marked nounwind. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71071 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04Re-apply 70645, converting ScalarEvolution to useDan Gohman
CallbackVH, with fixes. allUsesReplacedWith need to walk the def-use chains and invalidate all users of a value that is replaced. SCEVs of users need to be recalcualted even if the new value is equivalent. Also, make forgetLoopPHIs walk def-use chains, since any SCEV that depends on a PHI should be recalculated when more information about that PHI becomes available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70927 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04Restore minor deletion.Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70892 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-03Revert r70645 for now; it's causing a variety of regressions.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70661 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-02Convert ScalarEvolution to use CallbackVH for its internal map. ThisDan Gohman
makes ScalarEvolution::deleteValueFromRecords, and it's code that subtly needed to be called before ReplaceAllUsesWith, unnecessary. It also makes ValueDeletionListener unnecessary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70645 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-02Previously, RecursivelyDeleteDeadInstructions provided an optionDan Gohman
of returning a list of pointers to Values that are deleted. This was unsafe, because the pointers in the list are, by nature of what RecursivelyDeleteDeadInstructions does, always dangling. Replace this with a simple callback mechanism. This may eventually be removed if all clients can reasonably be expected to use CallbackVH. Use this to factor out the dead-phi-cycle-elimination code from LSR utility function, and generalize it to use the RecursivelyDeleteTriviallyDeadInstructions utility function. This makes LSR more aggressive about eliminating dead PHI cycles; adjust tests to either be less trivial or to simply expect fewer instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70636 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22Real fix for PR3549, by using caching for predecessor counts in addition to ↵Owen Anderson
the predecessors themselves. This halves the time to optimize the testcase, beyond what my previous patch did. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69792 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22Use PredIteratorCache in LCSSA, which gives a 37% overall speedup on the ↵Owen Anderson
testcase from PR3549. More improvements to come. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69788 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21use predicate instead of hand-rolled loopChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69752 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-17remove trailing whitespaceJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69402 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-16Fix for PR3944: make mem2reg O(N) instead of O(N^2) in the number of Eli Friedman
incoming edges for a block with many predecessors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69312 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15While inlining, clone llvm.dbg.func.start intrinsic and adjust Devang Patel
llvm.dbg.region.end instrinsic. This nested llvm.dbg.func.start/llvm.dbg.region.end pair now enables DW_TAG_inlined_subroutine support in code generator. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69118 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-31Update call graph after inlining invoke.Devang Patel
Patch by Jay Foad. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68120 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-23Now that errs() is properly non-buffered, there's no need toDan Gohman
explicitly flush it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67526 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-21Factorize out a concept - no functionality change.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67454 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-20Don't load values out of global constants with weakDuncan Sands
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
2009-03-19Fix comment typo.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67307 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-18Revert my previous change on Local.cpp, instead, fix the bug on scalarrepl.Zhou Sheng
If the instruction has no users, it is also not only used by debug info and should not be deleted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67194 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-18Fix a bug.Zhou Sheng
If I->use_empty(), this method should return false. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67180 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-13Revert r66920. It was causing failures in the self-hosting buildbot (in releaseBill Wendling
mode). Running /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/dg.exp ... FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/crash-narrowfunctiontest.ll Failed with signal(SIGBUS) at line 1 while running: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/crash-narrowfunctiontest.ll -bugpoint-crashcalls -silence-passes > /dev/null 0 bugpoint 0x0035dd25 llvm::sys::SetInterruptFunction(void (*)()) + 85 1 bugpoint 0x0035e382 llvm::sys::RemoveFileOnSignal(llvm::sys::Path const&, std::string*) + 706 2 libSystem.B.dylib 0x92f112bb _sigtramp + 43 3 libSystem.B.dylib 0xffffffff _sigtramp + 1829694831 4 bugpoint 0x00021d1c main + 92 5 bugpoint 0x00002106 start + 54 6 bugpoint 0x00000004 start + 18446744073709543220 Stack dump: 0. Program arguments: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/crash-narrowfunctiontest.ll -bugpoint-crashcalls -silence-passes FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/misopt-basictest.ll Failed with signal(SIGBUS) at line 1 while running: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/misopt-basictest.ll -dce -bugpoint-deletecalls -simplifycfg -silence-passes 0 bugpoint 0x0035dd25 llvm::sys::SetInterruptFunction(void (*)()) + 85 1 bugpoint 0x0035e382 llvm::sys::RemoveFileOnSignal(llvm::sys::Path const&, std::string*) + 706 2 libSystem.B.dylib 0x92f112bb _sigtramp + 43 3 libSystem.B.dylib 0xffffffff _sigtramp + 1829694831 4 bugpoint 0x00021d1c main + 92 5 bugpoint 0x00002106 start + 54 6 bugpoint 0x00000006 start + 18446744073709543222 Stack dump: 0. Program arguments: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/misopt-basictest.ll -dce -bugpoint-deletecalls -simplifycfg -silence-passes FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/remove_arguments_test.ll Failed with signal(SIGBUS) at line 1 while running: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/remove_arguments_test.ll -bugpoint-crashcalls -silence-passes 0 bugpoint 0x0035dd25 llvm::sys::SetInterruptFunction(void (*)()) + 85 1 bugpoint 0x0035e382 llvm::sys::RemoveFileOnSignal(llvm::sys::Path const&, std::string*) + 706 2 libSystem.B.dylib 0x92f112bb _sigtramp + 43 3 libSystem.B.dylib 0xffffffff _sigtramp + 1829694831 4 bugpoint 0x00021d1c main + 92 5 bugpoint 0x00002106 start + 54 Stack dump: 0. Program arguments: bugpoint /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/BugPoint/remove_arguments_test.ll -bugpoint-crashcalls -silence-passes --- Reverse-merging (from foreign repository) r66920 into '.': U include/llvm/Support/CallSite.h U include/llvm/Instructions.h U lib/Analysis/IPA/GlobalsModRef.cpp U lib/Analysis/IPA/Andersens.cpp U lib/Bitcode/Writer/BitcodeWriter.cpp U lib/VMCore/Instructions.cpp U lib/VMCore/Verifier.cpp U lib/VMCore/AsmWriter.cpp U lib/Transforms/Utils/LowerInvoke.cpp U lib/Transforms/Scalar/SimplifyCFGPass.cpp U lib/Transforms/IPO/PruneEH.cpp U lib/Transforms/IPO/DeadArgumentElimination.cpp git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66953 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-13Second installment of "BasicBlock operands to the back"Gabor Greif
changes. For InvokeInst now all arguments begin at op_begin(). The Callee, Cont and Fail are now faster to get by access relative to op_end(). This patch introduces some temporary uglyness in CallSite. Next I'll bring CallInst up to a similar scheme and then the uglyness will magically vanish. This patch also exposes all the reliance of the libraries on InvokeInst's operand ordering. I am thinking of taking care of that too. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66920 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-13Fix one more place where debug info affectedDale Johannesen
codegen (speculative execution). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66859 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-12Previous debug info fix to this code wasn't quiteDale Johannesen
right; did the wrong thing when there are exactly 11 non-debug instructions, followed by debug info. Remove a FIXME since it's apparently been fixed along the way. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66840 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-12There already was a class to force deterministicDale Johannesen
sorting of ConstantInt's; unreinvent wheel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66824 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-12Another missing check for debug intrinsics.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66800 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-12Allow for switch values bigger than 64 bits.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66751 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-12Fix some nondeterministic behavior when forwardingDale Johannesen
from a switch table. Multiple table entries that branch to the same place were being sorted by the pointer value of the ConstantInt*; changed to sort by the actual value of the ConstantInt. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66749 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-10Don't consider debug intrinsics when checkingDale Johannesen
whether a callee to be inlined is a leaf. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66588 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-10Ignore dbg info, while estimating size of jump through block.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66554 91177308-0d34-0410-b5e6-96231b3b80d8
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