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Commits on Mar 17, 2014

• Switch a number of loops in lib/CodeGen over to range-based for-loops, now that

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• Really REALLY finish adding const to the MachineRegisterInfo iterator range methods.

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• Add one more const marker that I missed.

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• Mark MachineRegisterInfo's iterator range methods as const.

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• Add iterator range definitions for the MachineRegisterInfo iterators.

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Commits on Mar 14, 2014

• Revert r203883 (which was more of a bandaid) and fix the real underlying

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Commits on Mar 13, 2014

• Phase 2 of the great MachineRegisterInfo cleanup. This time, we're changing

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• Fix a bug in InstCombine where we would incorrectly attempt to construct a

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• Fix a subtle issue introduced my my recent changes to MachineRegisterInfo iterators.

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• Phase 1 of refactoring the MachineRegisterInfo iterators to make them suitable

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Commits on Mar 11, 2014

• Range-ify a loop.

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Commits on Mar 7, 2014

• Range-ify some for loops.

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• Add iterator_range support for MachineInstr's operand and memoperand iterators.

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Commits on Mar 6, 2014

• Change the tag on this iterator to bidir and implement enough operators to make it true.

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• Fix issues in the NamedMDNode operand iterator, including those pointed out by

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• Add a iterator and interator_range interface to the operands of a NamedMDNode.

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Commits on Feb 12, 2014

• Remove a very old instcombine where we would turn sequences of selects into

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Commits on Jan 31, 2014

• DAGCombine should not produce ISD::OR nodes after operation legalization if they're not legal.

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Commits on Jan 28, 2014

• Use the proper SDK when building iOS sim builds of LLVM and/or Mac OS X builds.

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Commits on Jan 22, 2014

• Revert r162101 and replace it with a solution that works for targets where the pointer type is illegal.

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Commits on Jan 20, 2014

• Allow SMUL_LOHI and UMUL_LOHI to be narrow to MUL on targets where MUL is Custom rather than Legal. Even if the target is doing some kind of expansion for MUL, it's pretty much guaranteed to be mor…

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• Fix all the remaining lost-fast-math-flags bugs I've been able to find. The most important of these are cases in the generic logic for combining BinaryOperators.

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Commits on Jan 18, 2014

• Fix more instances of dropped fast math flags when optimizing FADD instructions. All found by inspection (aka grep).

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Commits on Jan 16, 2014

• Fix two cases where we could lose fast math flags when optimizing FADD expressions.

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• Fix an instance where we would drop fast math flags when performing an fdiv to reciprocal multiply transformation.

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• Fix a bug in InstCombine where we failed to preserve fast math flags when optimizing an FMUL expression.

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• Teach InstCombine that (fmul X, -1.0) can be simplified to (fneg X), which LLVM expresses as (fsub -0.0, X).

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Commits on Dec 18, 2013

• Revert r197600 while I sort out why it's failing on Windows.

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• Add a unit test for loading an object file via a file descriptor. Patch by Pete Cooper.

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Commits on Nov 16, 2013

• Small improvement to InstrinsicEmitter::EmitAttributes. This change removes the “pushing” and “clearing” of the SmallVector and instead uses const arrays to pass the attributeKinds to AttributeSet:…

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Commits on Oct 3, 2013

• Pull fptrunc's upwards through selects when one of the select's selectands was a constant. This has a number of benefits, including producing small immediates (easier to materialize, smaller consta…

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Commits on Aug 27, 2013

• Remove an over-zealous assertion. A pointer type could be illegal if the target is prepared to custom-legalize pointer operands. This assertion was evaluated before the target would have a chance t…

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Commits on Jul 30, 2013

• Preserve fast-math flags when folding (fsub x, (fneg y)) to (fadd x, y).

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Commits on Jul 26, 2013

• Fix variable name.

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• When InstCombine tries to fold away (fsub x, (fneg y)) into (fadd x, y), it is

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