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* Break anti-dependence breaking out into its own class.David Goodwin2009-10-265-543/+679
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85127 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support to encode type info using llvm::Constant.Devang Patel2009-10-261-0/+87
| | | | | | | Patch by Talin! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85126 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a typo in a comment.Dan Gohman2009-10-261-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85120 91177308-0d34-0410-b5e6-96231b3b80d8
* reapply r85085 with a bugfix to avoid infinite looping.Chris Lattner2009-10-261-8/+47
| | | | | | | | All of the 'demorgan' related xforms need to use dyn_castNotVal, not m_Not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85119 91177308-0d34-0410-b5e6-96231b3b80d8
* Make LSR's OptimizeShadowIV ignore induction variables with negativeDan Gohman2009-10-261-0/+4
| | | | | | | | | | | strides for now, because it doesn't handle them correctly. This fixes a miscompile of SingleSource/Benchmarks/Misc-C++/ray. This problem was usually hidden because indvars transforms such induction variables into negations of canonical induction variables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85118 91177308-0d34-0410-b5e6-96231b3b80d8
* - Revert some changes from 85044, 85045, and 85047 that broke x86_64 tests andEvan Cheng2009-10-263-26/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | bootstrapping. It's not safe to leave identity subreg_to_reg and insert_subreg around. - Relax register scavenging to allow use of partially "not-live" registers. It's common for targets to operate on registers where the top bits are undef. e.g. s0 = d0 = insert_subreg d0<undef>, s0, 1 ... = d0 When the insert_subreg is eliminated by the coalescer, the scavenger used to complain. The previous fix was to keep to insert_subreg around. But that's brittle and it's overly conservative when we want to use the scavenger to allocate registers. It's actually legal and desirable for other instructions to use the "undef" part of d0. e.g. s0 = d0 = insert_subreg d0<undef>, s0, 1 ... s1 = = s1 = d0 We probably need add a "partial-undef" marker on machine operand so the machine verifier would not complain. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85091 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 85085. It causes infinite looping during llvm-gcc build.Evan Cheng2009-10-261-45/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85090 91177308-0d34-0410-b5e6-96231b3b80d8
* Move DataTypes.h to include/llvm/System, update all users. This breaks the lastChandler Carruth2009-10-268-8/+8
| | | | | | | direct inclusion edge from System to Support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85086 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement PR3266 & PR5276, folding:Chris Lattner2009-10-261-6/+45
| | | | | | | | not (or (icmp, icmp)) -> and(icmp, icmp) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85085 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR5295 where the .ll parser didn't reject a function after a globalChris Lattner2009-10-251-5/+8
| | | | | | | | or global after a function with conflicting names. Update some testcases that were accidentally depending on this behavior. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85081 91177308-0d34-0410-b5e6-96231b3b80d8
* Suppress -Asserts warning.Daniel Dunbar2009-10-251-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85078 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR5186: the JIT shouldn't try to codegen available_externallyChris Lattner2009-10-251-1/+1
| | | | | | | functions it should just look them up like declarations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85077 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unused includes.Chandler Carruth2009-10-252-2/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85074 91177308-0d34-0410-b5e6-96231b3b80d8
* of -> orJim Grosbach2009-10-251-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85065 91177308-0d34-0410-b5e6-96231b3b80d8
* 80-column cleanupJim Grosbach2009-10-251-2/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85064 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply 85006 with a minor fix.Sanjiv Gupta2009-10-256-3/+52
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85052 91177308-0d34-0410-b5e6-96231b3b80d8
* Add ARM getMatchingSuperRegClass to handle S / D / Q cross regclass coalescing.Evan Cheng2009-10-252-0/+34
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85049 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't forget subreg indices when folding load / store.Evan Cheng2009-10-251-10/+30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85048 91177308-0d34-0410-b5e6-96231b3b80d8
* Use isIdentityCopy. Fix a bozo bug (flipped condition) in InvalidateRegDef.Evan Cheng2009-10-251-5/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85047 91177308-0d34-0410-b5e6-96231b3b80d8
* Code clean up.Evan Cheng2009-10-251-33/+33
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85046 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not delete identity insert_subreg even if dest is virtual. Let later ↵Evan Cheng2009-10-251-20/+27
| | | | | | passes delete them. This avoids register scavenger complain. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85045 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove includes of Support/Compiler.h that are no longer needed after theNick Lewycky2009-10-2598-98/+1
| | | | | | | VISIBILITY_HIDDEN removal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85043 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces.Nick Lewycky2009-10-25115-165/+146
| | | | | | | | Chris claims we should never have visibility_hidden inside any .cpp file but that's still not true even after this commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85042 91177308-0d34-0410-b5e6-96231b3b80d8
* this is done.Chris Lattner2009-10-251-35/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85041 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach FoldBitCast to be able to handle bitcasts from (e.g.) i128 -> <4 x float>.Chris Lattner2009-10-251-4/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This allows us to simplify this: union vec2d { double e[2]; double v __attribute__((vector_size(16))); }; typedef union vec2d vec2d; static vec2d a={{1,2}}, b={{3,4}}; vec2d foo () { return (vec2d){ .v = a.v + b.v * (vec2d){{5,5}}.v }; } down to: define %0 @foo() nounwind ssp { entry: %mrv5 = insertvalue %0 undef, double 1.600000e+01, 0 ; <%0> [#uses=1] %mrv6 = insertvalue %0 %mrv5, double 2.200000e+01, 1 ; <%0> [#uses=1] ret %0 %mrv6 } instead of: define %0 @foo() nounwind ssp { entry: %mrv5 = insertvalue %0 undef, double extractelement (<2 x double> fadd (<2 x double> fmul (<2 x double> bitcast (<1 x i128> <i128 85174437667405312423031577302488055808> to <2 x double>), <2 x double> <double 3.000000e+00, double 4.000000e+00>), <2 x double> <double 1.000000e+00, double 2.000000e+00>), i32 0), 0 ; <%0> [#uses=1] %mrv6 = insertvalue %0 %mrv5, double extractelement (<2 x double> fadd (<2 x double> fmul (<2 x double> bitcast (<1 x i128> <i128 85174437667405312423031577302488055808> to <2 x double>), <2 x double> <double 3.000000e+00, double 4.000000e+00>), <2 x double> <double 1.000000e+00, double 2.000000e+00>), i32 1), 1 ; <%0> [#uses=1] ret %0 %mrv6 } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85040 91177308-0d34-0410-b5e6-96231b3b80d8
* move FoldBitCast earlier in the file, and use it instead of Chris Lattner2009-10-251-132/+132
| | | | | | | ConstantExpr::getBitCast in various places. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85039 91177308-0d34-0410-b5e6-96231b3b80d8
* refactor FoldBitCast to reduce nesting and to always return a constantexprChris Lattner2009-10-251-104/+109
| | | | | | | instead of returning null on failure. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85038 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove ICmpInst::isSignedPredicate which was a reimplementationNick Lewycky2009-10-255-37/+24
| | | | | | | CmpInst::isSigned. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85037 91177308-0d34-0410-b5e6-96231b3b80d8
* Sink isTrueWhenEqual from ICmpInst to CmpInst. Add a matching isFalseWhenEqualNick Lewycky2009-10-251-1/+18
| | | | | | | which is equal to !isTrueWhenEqual for ints but not for floats. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85036 91177308-0d34-0410-b5e6-96231b3b80d8
* When the scavenger is looking for a good candidate location to restore from aJim Grosbach2009-10-251-5/+27
| | | | | | | spill, it should avoid doing so inside the live range of a virtual register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85026 91177308-0d34-0410-b5e6-96231b3b80d8
* MapValue doesn't needs its LLVMContext argument.Dan Gohman2009-10-243-18/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85020 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename isLoopExit to isLoopExiting, for consistency with the wordingDan Gohman2009-10-242-3/+3
| | | | | | | | | used elsewhere - an exit block is a block outside the loop branched to from within the loop. An exiting block is a block inside the loop that branches out. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85019 91177308-0d34-0410-b5e6-96231b3b80d8
* Rewrite LoopRotation's SSA updating code using SSAUpdater.Dan Gohman2009-10-241-226/+70
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85016 91177308-0d34-0410-b5e6-96231b3b80d8
* Make DominanceFrontierBase::print's output prettier.Dan Gohman2009-10-241-3/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85011 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert back 85006 for now as it breaks PIC16 tests.Sanjiv Gupta2009-10-246-51/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85008 91177308-0d34-0410-b5e6-96231b3b80d8
* Adding support for placing global objects in shared data memory.Sanjiv Gupta2009-10-246-3/+51
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85006 91177308-0d34-0410-b5e6-96231b3b80d8
* various cleanups suggested by DuncanChris Lattner2009-10-241-3/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84993 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR5287, a serious regression from my previous patches. Thanks toChris Lattner2009-10-241-0/+1
| | | | | | | Duncan for the nice tiny testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84992 91177308-0d34-0410-b5e6-96231b3b80d8
* Auto-upgrade free instructions to calls to the builtin free function.Victor Hernandez2009-10-2417-200/+151
| | | | | | | | | 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
* 80 col violation.Evan Cheng2009-10-241-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84986 91177308-0d34-0410-b5e6-96231b3b80d8
* Add some asserts to catch copyRegToReg() fails earlyAnton Korobeynikov2009-10-241-4/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84983 91177308-0d34-0410-b5e6-96231b3b80d8
* Restrict Thumb1 register allocation to low registers, even for instructions thatJim Grosbach2009-10-241-0/+16
| | | | | | | | | can access the hi regs. Our prologue and epilogue code doesn't know how to properly handle save/restore of the hi regs, so things go badly when we alloc them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84982 91177308-0d34-0410-b5e6-96231b3b80d8
* Identity copies should not contribute to spill weight.Evan Cheng2009-10-231-2/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84978 91177308-0d34-0410-b5e6-96231b3b80d8
* FIXME no longer applies. R12 and R3 are available for allocationJim Grosbach2009-10-231-3/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84977 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix http://llvm.org/PR4822: allow module deletion after a function has beenJeffrey Yasskin2009-10-232-27/+63
| | | | | | | | | | | | | | | compiled. When functions are compiled, they accumulate references in the JITResolver's stub maps. This patch removes those references when the functions are destroyed. It's illegal to destroy a Function when any thread may still try to call its machine code. This patch also updates r83987 to use ValueMap instead of explicit CallbackVHs and fixes a couple "do stuff inside assert()" bugs from r84522. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84975 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove AllocationInst. Since MallocInst went away, AllocaInst is the only ↵Victor Hernandez2009-10-2318-79/+117
| | | | | | 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
* APInt-ify the gep scaling code, so that it correctly handles the case whereDan Gohman2009-10-231-4/+5
| | | | | | | the scale overflows pointer-sized arithmetic. This fixes PR5281. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84954 91177308-0d34-0410-b5e6-96231b3b80d8
* Make LoopDeletion check the maximum backedge taken count, rather than theDan Gohman2009-10-231-1/+1
| | | | | | | | exact backedge taken count, when checking for infinite loops. This allows it to delete loops with multiple exit conditions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84952 91177308-0d34-0410-b5e6-96231b3b80d8
* some stuff is done, we still have constantexpr simplification to do.Chris Lattner2009-10-231-31/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84943 91177308-0d34-0410-b5e6-96231b3b80d8
* teach libanalysis to simplify vector loads with bitcast sources. ThisChris Lattner2009-10-231-7/+13
| | | | | | | | | | | | | | | | | | | | | | | | implements something out of Target/README.txt producing: _foo: ## @foo movl 4(%esp), %eax movapd LCPI1_0, %xmm0 movapd %xmm0, (%eax) ret $4 instead of: _foo: ## @foo movl 4(%esp), %eax movapd _b, %xmm0 mulpd LCPI1_0, %xmm0 addpd _a, %xmm0 movapd %xmm0, (%eax) ret $4 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84942 91177308-0d34-0410-b5e6-96231b3b80d8
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