zoecarver 4651d724fb [DSE] Remove noop stores in MSSA. ...

Adds a simple fast-path check for the pattern:
v = load ptr
store v to ptr

I took the tests from the bugzilla post, I can add more if needed (but I think these should be sufficent).

Refs: https://bugs.llvm.org/show_bug.cgi?id=45795

Differential Revision: https://reviews.llvm.org/D79391

2020-05-30 09:57:30 -07:00

..

MSSA

[DSE] Remove noop stores in MSSA.

2020-05-30 09:57:30 -07:00

X86

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2011-03-25-DSEMiscompile.ll

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2011-09-06-EndOfFunction.ll

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2011-09-06-MemCpy.ll

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2016-07-17-UseAfterFree.ll

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atomic.ll

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calloc-store.ll

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combined-partial-overwrites.ll

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const-pointers.ll

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crash.ll

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cs-cs-aliasing.ll

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debuginfo.ll

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DeleteThrowableInst.ll

Fix for a dangling point bug in DeadStoreElimination pass

2020-01-03 14:28:44 +00:00

dominate.ll

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fence.ll

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free.ll

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inst-limits.ll

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int_sideeffect.ll

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invariant.start.ll

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launder.invariant.group.ll

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libcalls2.ll

DSE: fix bug where we would only check libcalls for name rather than whole decl

2020-01-11 11:57:29 +00:00

libcalls.ll

DSE: fix bug where we would only check libcalls for name rather than whole decl

2020-01-11 11:57:29 +00:00

lifetime.ll

Re-commit: Mark values as trivially dead when their only use is a start or end lifetime intrinsic.

2020-05-08 12:24:10 -07:00

mda-with-dbg-values.ll

Migrate function attribute "no-frame-pointer-elim" to "frame-pointer"="all" as cleanups after D56351

2019-12-24 15:57:33 -08:00

memintrinsics.ll

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memset-missing-debugloc.ll

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merge-stores-big-endian.ll

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merge-stores.ll

StoreInst should store Align, not MaybeAlign

2020-05-15 12:26:58 -07:00

no-targetdata.ll

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operand-bundles.ll

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OverwriteStoreBegin.ll

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OverwriteStoreEnd.ll

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PartialStore2.ll

[DSE] Bugfix to avoid PartialStoreMerging involving non byte-sized stores

2019-05-24 08:32:02 +00:00

PartialStore.ll

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pr11390.ll

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simple.ll

Reland [X86] Codegen for preallocated

2020-05-20 11:25:44 -07:00

tail-byval.ll

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