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2011-05-22Eliminate some temporary variables, and don't call getByValTypeAlignmentChris Lattner
when we're just going to throw the result away. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131880 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-22eliminate dependence on StandardPasses.h. The code generator's pass pipelineChris Lattner
should eventually convert to PMBuilder, but I don't plan to do this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131819 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-21Implement mulo x, 2 -> addo x, x in DAGCombiner.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131800 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-20Fix PR9962 by properly constraining register classes in ↵Cameron Zwarich
RemoveCopyByCommutingDef(). This actually fixes most of the VerifyCoalescing failures in test-suite. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131768 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-20Fix typo. When will I learn?Charles Davis
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131765 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-20Add .pdata and .xdata sections to the COFF TLOF implementation.Charles Davis
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131763 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-20No reason not to allow defining the CFA as a reg w/ offset zero.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131760 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-20Fix typo.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131757 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-20Add support for frame info use of the .cfi_def_cfa directive.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131756 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-20Fix PR9960 by teaching SimpleRegisterCoalescing::AdjustCopiesBackFrom() to ↵Cameron Zwarich
preserve the phikill flag. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131717 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-19Fix PR9955 by only attaching load memory operands to load instructions andCameron Zwarich
similarly for stores. Now "make check" passes with the MachineVerifier forced on with the VerifyCoalescing option! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131705 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-19Update some currently-disabled code, preparing for eventual use.Stuart Hastings
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131663 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-19Revert r128961 because it didn't include a test and causes the verifier to failCameron Zwarich
on CodeGen/X86/2007-05-07-InvokeSRet.ll. There is probably a bug here that was fixed by r128961, but since there is no test or reference to a source file I have to revert it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131618 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Revert commit 131534 since it seems to have broken several buildbots.Duncan Sands
Original log entry: Refactor getActionType and getTypeToTransformTo ; place all of the 'decision' code in one place. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131536 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Refactor getActionType and getTypeToTransformTo ; place all of the 'decision'Nadav Rotem
code in one place. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131534 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Eliminate dead dead code elimination code.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131524 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Also use shrinkToUses after AdjustCopiesBackFrom().Jakob Stoklund Olesen
The 'last use' may not be in the same basic block, and we still want a correct live range. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131523 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Properly shrink live ranges after deleting dead copies. Clean up after all ↵Jakob Stoklund Olesen
joined copies. LiveInterval::shrinkToUses recomputes the live range from scratch instead of removing snippets. This should avoid the problem with dangling live ranges. Leave physreg identity copies alone. They can be created when joining a virtreg with a physreg. They don't affect register allocation, and they will be removed by the rewriter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131521 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17Make fast-isel miss counting in -stats and -fast-isel-verbose take ↵Eli Friedman
terminators into account; since there are many fewer isel misses with recent changes, misses caused by terminators are more significant. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131502 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17Misc. code cleanups.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131497 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17Misc. code cleanups.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131495 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17Revert 131467 due to buildbot complaint.Stuart Hastings
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131469 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17Fix an obscure issue in X86_64 parameter passing: if a tiny byval isStuart Hastings
passed as the fifth parameter, insure it's passed correctly (in R9). rdar://problem/6920088 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131467 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17Tweak cross-class coalescing to be more aggressive when the target class is ↵Jakob Stoklund Olesen
small. The greedy register allocator has live range splitting and register class inflation, so it can actually fully undo this join, including restoring the original register classes. We still don't want to do this for long live ranges, mostly because of the high register pressure of there are many constrained live ranges overlapping. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131466 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16Teach LiveInterval::isZeroLength about null SlotIndexes.Jakob Stoklund Olesen
When instructions are deleted, they leave tombstone SlotIndex entries. The isZeroLength method should ignore these null indexes. This causes RABasic to sometimes spill a callee-saved register in the abi-isel.ll test, so don't run that test with -regalloc=basic. Prioritizing register allocation according to spill weight can cause more registers to be used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131436 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16Delete unused variables.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131430 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16Trim #includes.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131429 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16Fix whitespace and 80-column violations.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131428 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16Track how many insns fast-isel successfully selects as well as how many itJim Grosbach
misses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131426 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16Preserve debug info for unused zero extended boolean argument.Devang Patel
Radar 9422775. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131422 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16Make fast-isel work correctly s/uadd.with.overflow intrinsics.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131420 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16Fix silly typo.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131419 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16Basic fast-isel of extractvalue. Not too helpful on its own, given the IR ↵Eli Friedman
clang generates for cases like this, but it should become more useful soon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131417 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16Don't do tail calls in a function that call setjmp. The stack might beRafael Espindola
corrupted when setjmp returns again. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131399 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14Fix a FIXME by moving the fast-isel implementation of the objectsize ↵Eli Friedman
intrinsic from the x86 code to the generic code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131332 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Make codegen able to handle values of empty types. This is one wayRafael Espindola
to fix PR9900. I will keep it open until sable is able to comment on it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131294 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Since I can't reproduce the failures from 131261, re-trying with aStuart Hastings
simplified version. <rdar://problem/9298790> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131274 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Revert 131266 and 131261 due to buildbot complaints.Stuart Hastings
rdar://problem/9298790 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131269 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12Non-fast-isel followup to 129634; correctly handle branches controlledStuart Hastings
by non-CMP expressions. The executable test case (129821) would test this as well, if we had an "-O0 -disable-arm-fast-isel" LLVM-GCC tester. Alas, the ARM assembly would be very difficult to check with FileCheck. The thumb2-cbnz.ll test is affected; it generates larger code (tst.w vs. cmp #0), but I believe the new version is correct. rdar://problem/9298790 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131261 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12Update comment.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131258 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12Doug convinced me that DW_AT_APPLE_objc_complete_type is more appropriate name.Devang Patel
s/DW_AT_APPLE_objc_class_extension/DW_AT_APPLE_objc_complete_type/g git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131244 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12Re-enable branchfolding common code hoisting optimization. Fixed a liveness ↵Evan Cheng
test bug and also taught it to update liveins. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131241 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12Let Objective-C front-end identify class extension, in dwarf output, using ↵Devang Patel
an attribute DW_AT_APPLE_objc_class_extension. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131238 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12Temporarily disable the transformation. It's breaking 186.crafty in some ↵Evan Cheng
configuration. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131235 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12Re-commit 131172 with fix. MachineInstr identity checks should check deadEvan Cheng
markers. In some cases a register def is dead on one path, but not on another. This is passing Clang self-hosting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131214 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-11Identify end of prologue (and beginning of function body) using ↵Devang Patel
DW_LNS_set_prologue_end line table opcode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131194 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-11Avoid hoisting spills when looking at a copy from another register that is alsoJakob Stoklund Olesen
about to be spilled. This can only happen when two extra snippet registers are included in the spill, and there is a copy between them. Hoisting the spill creates problems because the hoist will mark the copy for later dead code elimination, and spilling the second register will turn the copy into a spill. <rdar://problem/9420853> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131192 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-11Fixes a bug in the DAGCombiner. LoadSDNodes have two values (data, chain).Nadav Rotem
If there is a store after the load node, then there is a chain, which means that there is another user. Thus, asking hasOneUser would fail. Instead we ask hasNUsesOfValue on the 'data' value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131183 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-11Revert 131172 as it is causing clang to miscompile itself. I will tryRafael Espindola
to provide a reduced testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131176 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-11Give the 'eh.sjlj.dispatchsetup' intrinsic call the value coming from the setjmpBill Wendling
intrinsic call. This prevents it from being reordered so that it appears *before* the setjmp intrinsic (thus making it completely useless). <rdar://problem/9409683> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131174 91177308-0d34-0410-b5e6-96231b3b80d8
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