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6502/llvm-6502

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History

Chris Lattner 3a393728a6 Implement rdar://9009151, transforming strided loop stores of

unsplatable values into memset_pattern16 when it is available
(recent darwins).  This transforms lots of strided loop stores
of ints for example, like 5 in vpr:

  Formed memset:   call void @memset_pattern16(i8* %4, i8* getelementptr inbounds ([16 x i8]* @.memset_pattern9, i32 0, i32 0), i64 %tmp25)
    from store to: {%3,+,4}<%11> at:   store i32 3, i32* %scevgep, align 4, !tbaa !4




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126040 91177308-0d34-0410-b5e6-96231b3b80d8

2011-02-19 19:31:39 +00:00

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ArgumentPromotion

fix PR8932, a case where arg promotion could infinitely promote.

2011-01-16 08:09:24 +00:00

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temporarily revert r123526. While working on a follow-on patch I

2011-01-15 07:51:19 +00:00

Don't merge two constants if we care about the address of both.

2011-01-16 17:05:09 +00:00

When loading from a constant, fold inttoptr if the integer type and the resulting pointer type both have the same size.

2011-02-06 20:11:56 +00:00

CorrelatedValuePropagation

Test for lazy value info's ability to prove the absense of NULLs in pointers.

2011-01-16 21:57:20 +00:00

Teach DAE to look for functions whose arguments are unused, and change all callers to pass in an undefvalue instead.

2011-01-16 21:25:33 +00:00

DeadStoreElimination

Fix PR8728, a miscompilation I recently introduced. When optimizing

2010-12-06 01:48:06 +00:00

Duncan deftly points out that readnone functions aren't

2011-01-03 23:38:13 +00:00

Make ModRefBehavior a lattice. Use this to clean up AliasAnalysis

2010-11-10 01:02:18 +00:00

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Add unnamed_addr when we can show that address of a global is not used.

2011-01-19 16:32:21 +00:00

Give GVN back the ability to perform simple conditional propagation on conditional branch values.

2010-12-21 23:54:34 +00:00

Remove LoopIndexSplit pass. It is neither maintained nor used by anyone.

2010-10-07 23:29:37 +00:00

relax testcase a bit.

2011-01-14 07:46:33 +00:00

Add some transforms of the kind X-Y>X -> 0>Y which are valid when there is no

2011-02-18 16:25:37 +00:00

Teach instsimplify that X+Y>=X+Z is the same as Y>=Z if neither side overflows,

2011-02-13 17:15:40 +00:00

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more test cleanup

2010-09-02 22:38:56 +00:00

prevent jump threading from merging blocks when their address is

2011-02-18 04:43:06 +00:00

Rename 'loopsimplify' to 'loop-simplify'.

2011-02-10 23:38:10 +00:00

Rename 'loopsimplify' to 'loop-simplify'.

2011-02-10 23:38:10 +00:00

Make LoopSimplify change conditional branches in loop exiting blocks

2010-02-25 06:57:05 +00:00

Implement rdar://9009151, transforming strided loop stores of

2011-02-19 19:31:39 +00:00

Do not hoist @llvm.dbg.value. Here, @llvm.dbg.value is "referring" a value that is modified inside loop.

2011-02-14 23:03:23 +00:00

Rename 'loopsimplify' to 'loop-simplify'.

2011-02-10 23:38:10 +00:00

LoopStrengthReduce

Add a test for the LSR issue exposed by r125254.

2011-02-11 00:49:27 +00:00

add a testcase for r125827

2011-02-18 05:05:01 +00:00

Factor code for testing whether replacing one value with another

2010-11-18 19:59:41 +00:00

Add an atomic lowering pass

2010-08-03 16:19:16 +00:00

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Copy location info for current function argument from dbg.declare if respective store instruction does not have any location info.

2010-06-04 22:27:30 +00:00

Actually check memcpy lengths, instead of just commenting about

2011-01-21 22:07:57 +00:00

When removing a function from the function set and adding it to deferred, we

2011-02-09 06:32:02 +00:00

fix some failures my callgraph dump format change broke.

2010-04-23 18:38:40 +00:00

fix PR9215, preventing -reassociate from clearing nsw/nuw when

2011-02-17 01:29:24 +00:00

merge all the "crash tests" into crash.ll

2011-01-24 03:37:34 +00:00

fix PR7876: If ipsccp decides that a function's address is taken

2010-08-12 22:25:23 +00:00

SimplifyCFG: Track the number of used icmps when turning a icmp chain into a switch. If we used only one icmp, don't turn it into a switch.

2011-02-07 22:37:28 +00:00

SimplifyLibCalls

SimplifyLibCalls: Add missing legalize check on various printf to puts and

2011-02-12 18:19:57 +00:00

Make BasicAliasAnalysis a normal AliasAnalysis implementation which

2010-10-18 18:04:47 +00:00

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DIGlobalVariable can be used to encode debug info for globals that are directly folded into a constant by FE.

2010-08-25 18:52:02 +00:00

Add a test for TCE return duplication.

2011-01-29 04:53:35 +00:00

The output of opt -stats must be sent to stderr. Patch by NAKAMURA Takumi!

2010-09-01 18:32:56 +00:00