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2010-08-31Remember byval argument's frame index during argument lowering and use this ↵Devang Patel
info to emit debug info. Fixes Radar 8367011. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112623 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-31Improve virtual frame base register allocation heuristics.Jim Grosbach
1. Allocate them in the entry block of the function to enable function-wide re-use. The instructions to create them should be re-materializable, so there shouldn't be additional cost compared to creating them local to the basic blocks where they are used. 2. Collect all of the frame index references for the function and sort them by the local offset referenced. Iterate over the sorted list to allocate the virtual base registers. This enables creation of base registers optimized for positive-offset access of frame references. (Note: This may be appropriate to later be a target hook to do the sorting in a target appropriate manner. For now it's done here for simplicity.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112609 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-31Stop using the dom frontier in DwarfEHPrepare by not promoting alloca'sDuncan Sands
any more. I plan to reimplement alloca promotion using SSAUpdater later. It looks like Bill's URoR logic really always needs domtree, so the pass now always asks for domtree info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112597 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-31Offset is not always unsigned number.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112584 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-31Simplify.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112583 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-31zap unused method. x86 is the only user and already has a more powerfull versionBruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112571 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-31Add experimental -disable-physical-join command line option.Jakob Stoklund Olesen
Eventually, we want to disable physreg coalescing completely, and let the register allocator do its job using hints. This option makes it possible to measure the impact of disabling physreg coalescing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112567 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30two changes:Chris Lattner
1) nuke ConstDataCoalSection, which is dead. 2) revise my previous patch for rdar://8018335, which was completely wrong. Specifically, it doesn't make sense to mark __TEXT,__const_coal as PURE_INSTRUCTIONS, because it is for readonly data. templates (it turns out) go to const_coal_nt. The real fix for rdar://8018335 was to give ConstTextCoalSection a section kind of ReadOnly instead of Text. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112496 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30Revert r112461. It was failing on PPC...Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112463 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-30When adding a register, we should mark it as "def" if it can optionally defineBill Wendling
said (physical) register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112461 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29revert 112457, it looks like it broke selfhost.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112459 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29rewrite DwarfEHPrepare to use SSAUpdater to promote its allocasChris Lattner
instead of PromoteMemToReg. This allows it to stop using DF and DT, eliminating a computation of DT and DF from clang -O3. Clang is now down to 2 runs of DomFrontier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112457 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29inline function into its only caller.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112455 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-28remove unions from LLVM IR. They are severely buggy and notChris Lattner
being actively maintained, improved, or extended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112356 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-28remove dead protoChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112354 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-28Completely disable tail calls when fast-isel is enabled, as fast-iselDan Gohman
doesn't currently support dealing with this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112341 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-28Trim a #include.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112340 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-27Simplify.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112305 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-27Remove now unneeded command line flag that enables 'optimize compares.'Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112287 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26Revert r112213. It is not needed.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112242 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26Simplify eliminateFrameIndex() interface back down now that PEI doesn't needJim Grosbach
to try to re-use scavenged frame index reference registers. rdar://8277890 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112241 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26If node is not available then use FuncInfo.ValueMap to emit debug info for ↵Devang Patel
byval parameter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112238 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26Remove the now obsolete frame index virtual re-use algorithm from PEI. Pre-RAJim Grosbach
virtual base registers handle this function, and more. A bit more cleanup to do on the interface to eliminateFrameIndex() after this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112237 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26Speculatively revert r112207.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112216 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-2680 col.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112215 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26Update DanglingDebugInfo so that it can be used to track llvm.dbg.declare also.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112213 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26Donot forget to resolve dangling debug info in a case where virtual ↵Devang Patel
register, used for a value, is initialized after a dbg intrinsic is seen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112207 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26Add a hackaround for PR7993 which is causing failures on x86 builders that ↵Chris Lattner
lack sse2. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112175 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26implement SplitVecOp_CONCAT_VECTORS, fixing the included testcase with SSE1.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112171 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-26zap dead code.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112155 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25remove some llvmcontext arguments that are now dead post-refactoring.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112104 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Change handling of illegal vector types to widen when possible instead of Chris Lattner
expanding: e.g. <2 x float> -> <4 x float> instead of -> 2 floats. This affects two places in the code: handling cross block values and handling function return and arguments. Since vectors are already widened by legalizetypes, this gives us much better code and unblocks x86-64 abi and SPU abi work. For example, this (which is a silly example of a cross-block value): define <4 x float> @test2(<4 x float> %A) nounwind { %B = shufflevector <4 x float> %A, <4 x float> undef, <2 x i32> <i32 0, i32 1> %C = fadd <2 x float> %B, %B br label %BB BB: %D = fadd <2 x float> %C, %C %E = shufflevector <2 x float> %D, <2 x float> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef> ret <4 x float> %E } Now compiles into: _test2: ## @test2 ## BB#0: addps %xmm0, %xmm0 addps %xmm0, %xmm0 ret previously it compiled into: _test2: ## @test2 ## BB#0: addps %xmm0, %xmm0 pshufd $1, %xmm0, %xmm1 ## kill: XMM0<def> XMM0<kill> XMM0<def> insertps $0, %xmm0, %xmm0 insertps $16, %xmm1, %xmm0 addps %xmm0, %xmm0 ret This implements rdar://8230384 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112101 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Fix comment.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112086 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Remove dead argument.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112085 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-25Add some statistics for PEI register scavengingJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112084 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24split the vector case of getCopyFromParts out to its own function,Chris Lattner
no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111994 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24split the vector case out of getCopyToParts into its own function. NoChris Lattner
functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111990 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24tidy up, reduce indentationChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111982 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Add ARM heuristic for when to allocate a virtual base register for stackJim Grosbach
access. rdar://8277890&7352504 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111968 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Move enabling the local stack allocation pass into the target where it belongs.Jim Grosbach
For now it's still a command line option, but the interface to the generic code doesn't need to know that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111942 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-24Revert r107202. It is not adding any value.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111870 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23Remove the MFI storage of the local allocation block size. It's not needed.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111847 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23Better handling of local offsets for downwards growing stacks. This correctsJim Grosbach
relative offsets when there are offsets encoded in the instructions and simplifies final allocation in PEI. rdar://8277890 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111836 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23Handle qualified constants that are directly folded by FE.Devang Patel
PR 7920. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111820 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23Now that PassInfo and Pass::ID have been separated, move the rest of the ↵Owen Anderson
passes over to the new registration API. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111815 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-23Fix some GCC warnings by providing a virtual destructor in the base of a classChandler Carruth
hierarchy with virtual methods and using llvm_unreachable to properly indicate unreachable states which would otherwise leave variables uninitialized. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111803 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-21Delete dead comment.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111744 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-20Create the new linker type "linker_private_weak_def_auto".Bill Wendling
It's similar to "linker_private_weak", but it's known that the address of the object is not taken. For instance, functions that had an inline definition, but the compiler decided not to inline it. Note, unlike linker_private and linker_private_weak, linker_private_weak_def_auto may have only default visibility. The symbols are removed by the linker from the final linked image (executable or dynamic library). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111684 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-20Downwards growing stack allocation order reverses relative offsetsJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111673 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-20Add more dbg outputJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111670 91177308-0d34-0410-b5e6-96231b3b80d8
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