David Majnemer b0f9f5bfc7 [SCCP] Resolve shifts beyond the bitwidth to undef ...

Shifts beyond the bitwidth are undef but SCCP resolved them to zero.
Instead, DTRT and resolve them to undef.

This reimplements the transform which caused PR27712.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269269 91177308-0d34-0410-b5e6-96231b3b80d8

2016-05-12 03:07:40 +00:00

..

2002-05-02-MissSecondInst.ll

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2002-05-20-MissedIncomingValue.ll

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2002-05-21-InvalidSimplify.ll

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2002-08-30-GetElementPtrTest.ll

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2003-06-24-OverdefinedPHIValue.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2003-08-26-InvokeHandling.ll

Move the personality function from LandingPadInst to Function

2015-06-17 20:52:32 +00:00

2004-11-16-DeadInvoke.ll

Move the personality function from LandingPadInst to Function

2015-06-17 20:52:32 +00:00

2004-12-10-UndefBranchBug.ll

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2006-10-23-IPSCCP-Crash.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2006-12-04-PackedType.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

2006-12-19-UndefBug.ll

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2007-05-16-InvokeCrash.ll

Move the personality function from LandingPadInst to Function

2015-06-17 20:52:32 +00:00

2008-01-27-UndefCorrelate.ll

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2008-04-22-multiple-ret-sccp.ll

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2008-05-23-UndefCallFold.ll

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2009-01-14-IPSCCP-Invoke.ll

Move the personality function from LandingPadInst to Function

2015-06-17 20:52:32 +00:00

2009-05-27-VectorOperandZero.ll

[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction

2015-04-16 23:24:18 +00:00

apint-array.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

apint-basictest2.ll

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apint-basictest3.ll

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apint-basictest4.ll

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apint-basictest.ll

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apint-bigarray.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

apint-bigint2.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

apint-bigint.ll

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apint-ipsccp1.ll

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apint-ipsccp2.ll

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apint-ipsccp3.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

apint-ipsccp4.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

apint-load.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

apint-phi.ll

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apint-select.ll

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atomic-load-store.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

atomic.ll

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calltest.ll

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comdat-ipo.ll

Don't IPO over functions that can be de-refined

2016-04-08 00:48:30 +00:00

crash.ll

[SCCP] Turn loads of null into undef instead of zero initialized values

2015-07-01 05:37:57 +00:00

global-alias-constprop.ll

[opaque pointer type] Add textual IR support for explicit type parameter for global aliases

2015-09-11 03:22:04 +00:00

ipsccp-addr-taken.ll

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ipsccp-basic.ll

Move the personality function from LandingPadInst to Function

2015-06-17 20:52:32 +00:00

loadtest.ll

[opaque pointer type] Add textual IR support for explicit type parameter to load instruction

2015-02-27 21:17:42 +00:00

logical-nuke.ll

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pr27712.ll

[SCCP] Resolve shifts beyond the bitwidth to undef

2016-05-12 03:07:40 +00:00

retvalue-undef.ll

[opaque pointer type] Add textual IR support for explicit type parameter to the call instruction

2015-04-16 23:24:18 +00:00

sccptest.ll

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select.ll

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switch.ll

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ub-shift.ll

[SCCP] Resolve shifts beyond the bitwidth to undef

2016-05-12 03:07:40 +00:00

undef-resolve.ll

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vector-bitcast.ll

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