Duncan Sands 3f329cb781 Teach GVN to also propagate switch cases. For example, in this code ...

switch (n) {
    case 27:
      do_something(x);
    ...
  }
the call do_something(x) will be replaced with do_something(27).  In
gcc-as-one-big-file this results in the removal of about 500 lines of
bitcode (about 0.02%), so has about 1/10 of the effect of propagating
branch conditions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141360 91177308-0d34-0410-b5e6-96231b3b80d8

2011-10-07 08:29:06 +00:00

..

ADCE

Try to eliminate the use of the 'unwind' instruction.

2011-09-02 22:41:11 +00:00

ArgumentPromotion

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BlockPlacement

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BranchFolding

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CodeExtractor

Update this test to the new EH model.

2011-09-20 22:29:43 +00:00

CodeGenPrepare

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ConstantMerge

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ConstProp

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CorrelatedValuePropagation

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DeadArgElim

Update some tests to the new EH scheme.

2011-09-01 00:58:03 +00:00

DeadStoreElimination

Try again at r138809 (make DSE more aggressive in removing dead stores at the end of a function), now with less deleting stores before memcpy's.

2011-09-06 18:14:09 +00:00

EarlyCSE

Move "atomic" and "volatile" designations on instructions after the opcode

2011-08-12 22:50:01 +00:00

FunctionAttrs

Update some tests to the new EH scheme.

2011-09-01 00:58:03 +00:00

GlobalDCE

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GlobalOpt

Move "atomic" and "volatile" designations on instructions after the opcode

2011-08-12 22:50:01 +00:00

GVN

Teach GVN to also propagate switch cases. For example, in this code

2011-10-07 08:29:06 +00:00

IndVarSimplify

Test case for r140670: indvars should hoist sext.

2011-09-28 02:13:32 +00:00

Inline

Replace more uses of 'unwind' in the tests with calls to landingpad and

2011-09-19 22:11:35 +00:00

InstCombine

Revert 141203. InstCombine is looping on unit tests.

2011-10-05 20:44:29 +00:00

InstSimplify

InstSimplify: Don't try to replace an extractvalue/insertvalue pair with the original value if types don't match.

2011-09-05 18:16:19 +00:00

Internalize

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IPConstantProp

Update some tests to the new EH scheme.

2011-09-01 00:58:03 +00:00

JumpThreading

Move "atomic" and "volatile" designations on instructions after the opcode

2011-08-12 22:50:01 +00:00

LCSSA

Try to eliminate the use of the 'unwind' instruction.

2011-09-02 22:41:11 +00:00

LICM

Atomic load/store support in LICM.

2011-08-15 20:52:09 +00:00

LoopDeletion

Remove the old tail duplication pass. It is not used and is unable to update

2011-08-30 23:03:45 +00:00

LoopIdiom

Stop emitting instructions with the name "tmp" they eat up memory and have to be uniqued, without any benefit.

2011-09-27 20:39:19 +00:00

LoopRotate

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LoopSimplify

Update to the new EH syntax.

2011-09-19 23:50:34 +00:00

LoopStrengthReduce

LSR should avoid redundant edge splitting.

2011-10-04 03:50:44 +00:00

LoopUnroll

Unit test for r140919, loop unroll heuristics.

2011-10-04 00:07:02 +00:00

LoopUnswitch

Split the landing pad basic block with the correct function. Also merge the

2011-09-27 00:59:31 +00:00

LowerAtomic

Convert more tests over to the new atomic instructions.

2011-09-26 20:27:49 +00:00

LowerExpectIntrinsic

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LowerInvoke

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LowerSwitch

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Mem2Reg

Add the returns_twice attribute to LLVM.

2011-10-03 14:45:37 +00:00

MemCpyOpt

Atomic load/store handling for the passes using memdep (GVN, DSE, memcpyopt).

2011-08-17 22:22:24 +00:00

MergeFunc

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ObjCARC

When eliminating unnecessary retain+autorelease on return values,

2011-09-29 22:27:34 +00:00

PhaseOrdering

Add file.

2011-08-19 21:21:20 +00:00

PruneEH

Update more tests to the new EH scheme.

2011-08-31 21:04:11 +00:00

Reassociate

Remove empty test.

2011-08-02 02:47:45 +00:00

ScalarRepl

Stop emitting instructions with the name "tmp" they eat up memory and have to be uniqued, without any benefit.

2011-09-27 20:39:19 +00:00

SCCP

Make sure IPSCCP never marks a tracked call as overdefined in SCCPSolver::ResolvedUndefsIn. If we do, we can end up in a situation where a function is resolved to return a constant, but the caller is marked overdefined, which confuses the code later.

2011-09-20 23:28:51 +00:00

SimplifyCFG

Replace more uses of 'unwind' in the tests with calls to landingpad and

2011-09-19 22:11:35 +00:00

SimplifyLibCalls

PR11061: Make simplifylibcalls fold strcmp("", x) correctly.

2011-10-05 22:27:16 +00:00

Sink

Fix test; sorry for any inconvenience.

2011-09-01 21:25:42 +00:00

StripSymbols

fix PR10286, a problem with the .ll printer handling block addresses that are out-of-scope.

2011-08-03 06:15:41 +00:00

TailCallElim

Check for the returns_twice attribute in callsFunctionThatReturnsTwice. This

2011-10-05 20:05:13 +00:00

TailDup

Remove the old tail duplication pass. It is not used and is unable to update

2011-08-30 23:03:45 +00:00