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2009-02-20Just roll back the previous change to -mem2reg.Zhou Sheng
Will re-think about this according to Chris's comments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65126 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-20patch to update the line number information in pass -mem2reg.Zhou Sheng
Currently this pass will delete the variable declaration info, and keep the line number info. But the kept line number info is not updated, and some is redundant or not correct, this patch just updates those info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65123 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-20Fix a crash in the pre-alloc splitter exposed by recent codegen changes.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65121 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-20Add a quick pass to the stack slot colorer to eliminate some trivially ↵Owen Anderson
redundant spills after coloring. Ideally these would never get created in the first place, but until we enhance the spiller to have a more global picture of what's happening, this is necessary for code quality in some circumstances. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65120 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-20make these tests pass when run on a G5.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65117 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-20Implement "superhero" strength reduction, or full strengthDan Gohman
reduction of address calculations down to basic pointer arithmetic. This is currently off by default, as it needs a few other features before it becomes generally useful. And even when enabled, full strength reduction is only performed when it doesn't increase register pressure, and when several other conditions are true. This also factors out a bunch of exisiting LSR code out of StrengthReduceStridedIVUsers into separate functions, and tidies up IV insertion. This actually decreases register pressure even in non-superhero mode. The change in iv-users-in-other-loops.ll is an example of this; there are two more adds because there are two fewer leas, and there is less spilling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65108 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-20Add an accessor method to DwarfWriter to tell of debugging info should be ↵Bill Wendling
emitted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65092 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-20Add a default debug location object to the Machine Function. It's used to ↵Bill Wendling
emit a default debugging label at the beginning of a function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65091 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Temporarily revert r65065. It was causing test failures.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65068 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Print out debug info when printing the machine instruction.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65067 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Check for -fast here too.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65065 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Generate these labels when we're in "fast" mode, not simply when we're no inBill Wendling
"optimize-for-size" mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65064 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Describe tail merging's use of InsertBranch.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65062 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Use DEBUG() instead of passing *DOUT to WriteAsOperand,Dan Gohman
since the latter just passes a null reference when debugging is not enabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65060 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Make the debug output of LSR less cryptic and more informative.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65057 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Print out a new label only if the debug location *tuple* is different. The debugBill Wendling
locations may change, but the tuples may be the same. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65039 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Forgot to check that debug information is supported.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65034 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Regenerate.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65020 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Default to building with position independent code. This may increase LLVM'sNick Lewycky
run time but will make LLVM easier to use as a library. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65019 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19If an executable is run through a symlink, dladdr will return theChris Lattner
symlink. We really want the ultimate executable being run, not the symlink. This lets clang find its headers when invoked through a symlink. rdar://6602012 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65017 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Fix the logic in this assertion to properly validate the numberDan Gohman
of arguments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64999 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Reapply r57340. VMKit does not presently rely on materializeFunctionDan Gohman
being called with the lock released, and this fixes a race condition in the JIT as used by lli. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64997 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Temporarily XFAIL this test.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64987 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18Put code that generates debug labels into TableGen so that it can be used byBill Wendling
everyone. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64978 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18add proper asmwriter and asmparser support for anonymous functions.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64953 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18In theory the aliasee may have dead constant usersDuncan Sands
here. Since we only do the transform if there is one use, strip off any such users in the hope of making the transform fire more often. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64926 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18really fix styleRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64923 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18The subprogram die may not exist while creating "default" scope.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64920 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18Use a sign-extend instead of a zero-extend when promoting aDan Gohman
trip count value when the original loop iteration condition is signed and the canonical induction variable won't undergo signed overflow. This isn't required for correctness; it just preserves more information about original loop iteration values. Add a getTruncateOrSignExtend method to ScalarEvolution, following getTruncateOrZeroExtend. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64918 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18Simplify by using dyn_cast instead of isa and cast.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64917 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18Clarify the definition of "latch block" in a comment.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64916 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18Add explicit keywords.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64915 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18Add support to the JIT for true non-lazy operation. When a call to a functionNate Begeman
that has not been JIT'd yet, the callee is put on a list of pending functions to JIT. The call is directed through a stub, which is updated with the address of the function after it has been JIT'd. A new interface for allocating and updating empty stubs is provided. Add support for removing the ModuleProvider the JIT was created with, which would otherwise invalidate the JIT's PassManager, which is initialized with the ModuleProvider's Module. Add support under a new ExecutionEngine flag for emitting the infomration necessary to update Function and GlobalVariable stubs after JITing them, by recording the address of the stub and the name of the GlobalValue. This allows code to be copied from one address space to another, where libraries may live at different virtual addresses, and have the stubs updated with their new correct target addresses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64906 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18fix styleRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64905 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18Add a test for r61358, which I forgot to add way back when.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64904 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18Factor out the code to add a MachineOperand to a MachineInstrBuilder.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64891 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18Eliminate several more unnecessary intptr_t casts.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64888 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18Change the argument type in this test to something less convoluted,Dan Gohman
since it isn't actually used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64883 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18GV with null value initializer shouldn't go to BSS if it's meant for a ↵Evan Cheng
mergeable strings section. Currently it only checks for Darwin. Someone else please check if it should apply to other targets as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64877 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18allow TimeRegion to take a potentially-null pointer to aChris Lattner
timer for clang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64874 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18Fix a corner case in the new indvars promotion logic: if thereDan Gohman
are multiple IV's in a loop, some of them may under go signed or unsigned wrapping even if the IV that's used in the loop exit condition doesn't. Restrict sign-extension-elimination and zero-extension-elimination to only those that operate on the original loop-controlling IV. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64866 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18Fix a typo in a comment.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64859 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-17If an alias is dead and so is its aliasee, then globaldce wouldDuncan Sands
crash because the alias would still be using the aliasee when the aliasee was deleted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64844 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-17And now, not so elegant, test case...Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64838 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-17Remove changes that were accidently included in previous commit.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64835 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-17The debugger sometimes lookup dynamically in the runtime to find ivar info ↵Devang Patel
of any Objective-C classes. It would be very helpful to debugger if the compiler encodes runtime version number in DWARF. Add support for two additional DWARF attributes to encode Objective-C runtime version number. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64834 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-17Remove trailing whitespace to reduce later commit patch noise.Scott Michel
(Note: Eventually, commits like this will be handled via a pre-commit hook that does this automagically, as well as expand tabs to spaces and look for 80-col violations.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64827 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-17Emit debug info for bitfields.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64815 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-17tools like nm and ar only need register_claim_file and add_symbols. Don't abortRafael Espindola
if other hooks are missing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64812 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-17LoopIndexSplit doesn't actually use ScalarEvolution.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64811 91177308-0d34-0410-b5e6-96231b3b80d8
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