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2009-10-01Merge from mainline (reg).Tanya Lattner
Don't constant propagate byval pointers, since they are not really pointers, but rather structs passed by value. This fixes PR5038. git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_26@83200 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-16Merge 81810 from mainline.Tanya Lattner
When extending a memset range past the front, set the alignment of the memset region to the alignment of the new start address. git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_26@81976 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-13Merge 81175 from mainline.Tanya Lattner
Fix PR4882, by making MemCpyOpt not dereference removed stores to get the context for the newly created operations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_26@81693 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08Include file is necessary for 80768 that was merged in.Tanya Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_26@81253 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-04Merge 80768 from mainline.Tanya Lattner
fix PR4815: some cases where DeleteDeadInstruction can delete the instruction BBI points to. git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_26@81029 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-04Merge 80761 from mainline.Tanya Lattner
fix PR4837, some bugs folding vector compares. These return a vector of i1, not i1 itself. git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_26@81027 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Merge from mainline.Tanya Lattner
Rename Instruction::isIdenticalTo to Instruction::isIdenticalToWhenDefined, and introduce a new Instruction::isIdenticalTo which tests for full identity, including the SubclassOptionalData flags. Also, fix the Instruction::clone implementations to preserve the SubclassOptionalData flags. Finally, teach several optimizations how to handle SubclassOptionalData correctly, given these changes. This fixes the counterintuitive behavior of isIdenticalTo not comparing the full value, and clone not returning an identical clone, as well as some subtle bugs that could be caused by these. Thanks to Nick Lewycky for reporting this, and for an initial patch! git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_26@80553 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-31Merge from mainline.Tanya Lattner
Special-case static allocas in IndVarSimplify's loop invariant 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/branches/release_26@80551 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-20Rename hasNoUnsignedOverflow and hasNoSignedOverflow to hasNoUnsignedWrapDan Gohman
and hasNoSignedWrap, for consistency with the nuw and nsw properties. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79539 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19Fix a few places to check if TargetData is available before using it.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79493 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19Make SROA and PredicateSimplifier cope if TargetData is notDan Gohman
available. This is very conservative for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79442 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19Fix SimplifyLibcalls and ValueTracking to check mayBeOverriddenDan Gohman
before performing optimizations based on constant string values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79384 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-18Make TargetData optional in MemCpyOptimizer.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79306 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-18Make TargetData optional in SimplifyLibCalls.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79298 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-17Fix debug output to include a newline after printing a Value, nowDan Gohman
that Value's operator<< doesn't include one. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79240 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-17Don't crash trying to promote VLAs.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79226 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-15Don't try to get the context from an erased Instruction.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79134 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13Push LLVMContexts through the IntegerType APIs.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78948 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13When InstCombine simplifies a load -> extract element to gep -> load, placeMon P Wang
the new load by the old load instead of by the extract element because a store could have occurred between the load and extract element. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78891 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13Simplify conditional.Andreas Bolka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78889 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13Simplify and reduce indentation using early exits.Andreas Bolka
No intended functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78888 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13DEBUGify some DOUTs.Andreas Bolka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78887 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13Prune trailing whitespace.Andreas Bolka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78886 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-12Transform -X/C to X/-C, implementing a README.txt entry.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78812 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-12Optimize (x/C)*C to x if the division is exact.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78811 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-12Update instcombine's debug output to account for Value*'s operator<<Dan Gohman
not appending its own newline. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78810 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-12Remove a bunch more now-unnecessary Context arguments.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78809 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-12Eliminate a bunch of now unnecessary explicit Context variables.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78808 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-12Add contexts to some of the MVT APIs. No functionality change yet, just the ↵Owen Anderson
infrastructure work needed to get the contexts to where they need to be first. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78759 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11Optimize exact sdiv by a constant power of 2 to ashr.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78714 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-10Rename MVT to EVT, in preparation for splitting SimpleValueType out into its ↵Owen Anderson
own struct type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78610 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-08More ProfileInfo improvements.Daniel Dunbar
- Part of optimal static profiling patch sequence by Andreas Neustifter. - Store edge, block, and function information separately for each functions (instead of in one giant map). - Return frequencies as double instead of int, and use a sentinel value for missing information. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78477 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-07Fix dom frontier update. This fixes PR4667.Devang Patel
Patch by Jakub Staszak. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78388 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-04Check for !isa<Constant> instead of isa<Instruction>. ThisDan Gohman
matches what the comment says, and it avoids spurious BitCast instructions for Argument values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78121 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-03Add a new Constant::getIntegerValue helper function, and convert aDan Gohman
few places in InstCombine to use it, to fix problems handling pointer types. This fixes the recent llvm-gcc bootstrap error. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78005 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-03Make SimplifyDemandedUseBits generate vector constants where Eli Friedman
appropriate. Patch per report on llvmdev. No testcase because the original report didn't come with a testcase, and I can't come up with a case that actually fails. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77986 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31Move a few more APIs back to 2.5 forms. The only remaining ones left to ↵Owen Anderson
change back are metadata related, which I'm waiting on to avoid conflicting with Devang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77721 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31Fix GVN's debug output, now that operator<< on Value* doesn't printDan Gohman
a trailing newline. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77719 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31PR4662: Fix a crash introduced by the recent LLVMContext changes.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77716 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31Move getTrue() and getFalse() to 2.5-like APIs.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77685 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30Move more code back to 2.5 APIs.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77635 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30Twines: Don't allow implicit conversion from integers, this is too tricky.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77605 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30Switch obvious clients to Twine instead of utostr (when they were already usingDaniel Dunbar
a Twine, e.g., for names). - I am a little ambivalent about this; we don't want the string conversion of utostr, but using overload '+' mixed with string and integer arguments is sketchy. On the other hand, this particular usage is something of an idiom. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77579 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Eliminate a few unused-variable warningsDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77519 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Move types back to the 2.5 API.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77516 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Fix PR4645 which was fallout from the fix for PR4641.Daniel Dunbar
- Call RAUW to delete all instructions (this is a patch from Nick Lewycky). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77512 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Move ConstantExpr to 2.5 API.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77494 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Bulk erasing instructions without RAUWing them is unsafe. Instead, break themNick Lewycky
into a new BB that has no predecessors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77433 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28Return ConstantVector to 2.5 API.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77366 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28Change ConstantArray to 2.5 API.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77347 91177308-0d34-0410-b5e6-96231b3b80d8
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