Arthur Eubanks 13aa2c1c3b [DSE] Revisit pointers that may no longer escape after removing another store ...

In dependent-capture, previously we'd see that %tmp4 is captured due to
the first store. We'd cache this info in CapturedBeforeReturn and
InvisibleToCallerAfterRet. Then the first store is then removed, causing
the cached values to be wrong.

We also need to revisit everything because normally we work backwards
when removing stores at the end of the function, but in this case
removing an earlier store causes a later store to be removable.

No compile time impact:
https://llvm-compile-time-tracker.com/compare.php?from=56796ae1a8db4c85dada28676f8303a5a3609c63&to=21b7e5248ffc423cd36c9d4a020085e363451465&stat=instructions

Reviewed By: asbirlea

Differential Revision: https://reviews.llvm.org/D123686

2022-07-19 09:30:34 -07:00

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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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assume.ll

[CaptureTracking] Ignore ephemeral values in EarliestEscapeInfo

2022-04-08 10:07:26 -07:00

atomic-overlapping.ll

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atomic-todo.ll

[NFC][llvm] Inclusive language: reword uses of sanity test and check

2021-11-25 07:21:42 -05:00

atomic.ll

[NFC][llvm] Inclusive language: reword uses of sanity test and check

2021-11-25 07:21:42 -05:00

calloc-store.ll

[DSE] Handle inaccessiblememonly calloc

2022-01-19 12:55:09 +01:00

captures-before-call.ll

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captures-before-load.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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debug-counter.ll

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debuginfo.ll

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dependent-capture.ll

[DSE] Revisit pointers that may no longer escape after removing another store

2022-07-19 09:30:34 -07:00

dominate.ll

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fence-todo.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

[DSE][MemLoc] Handle intrinsics more generically

2021-12-24 09:29:57 +01:00

launder.invariant.group.ll

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libcalls-darwin.ll

[BuildLibCalls] Add nounwind,willreturn to memset_pattern{4,8,16}.

2022-01-12 10:32:53 +00:00

libcalls.ll

[DSE] Add additional memset_chk tests.

2021-12-06 13:06:11 +00:00

lifetime.ll

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loop-invariant-entry-block.ll

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masked-dead-store-inseltpoison.ll

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masked-dead-store.ll

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mda-with-dbg-values.ll

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memcpy-complete-overwrite.ll

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memcpy-lifetimes.ll

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memintrinsics.ll

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memory-intrinsics-sizes.ll

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memoryssa-scan-limit.ll

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memset-and-memcpy.ll

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memset-missing-debugloc.ll

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memset-unknown-sizes.ll

[DSE] Make test more robust (NFC)

2022-01-11 11:49:52 +01:00

merge-stores-big-endian.ll

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merge-stores.ll

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multiblock-captures.ll

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multiblock-exceptions.ll

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multiblock-loop-carried-dependence.ll

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multiblock-loops.ll

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multiblock-malloc-free.ll

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multiblock-memintrinsics.ll

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multiblock-memoryphis.ll

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multiblock-multipath-throwing.ll

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multiblock-multipath.ll

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multiblock-overlap.ll

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multiblock-partial.ll

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multiblock-simple.ll

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multiblock-throwing.ll

[DSE] Add test cases with more complex redundant stores.

2021-10-22 13:50:32 +01:00

multiblock-unreachable.ll

[DSE] Fall back to CFG scan for unreachable terminators.

2022-02-16 14:06:40 +00:00

no-targetdata.ll

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noop-stores.ll

[DSE] Handle inaccessiblememonly calloc

2022-01-19 12:55:09 +01:00

nounwind-invoke.ll

[DSE] Don't remove nounwind invokes

2022-06-21 11:54:09 -07:00

offsetted-overlapping-stores.ll

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opaque-ptr.ll

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operand-bundles.ll

[DSE] Handle inaccessiblememonly calloc

2022-01-19 12:55:09 +01:00

out-of-bounds-stores.ll

[DSE] Add test case with multiple inbounds stores, followed by OOB.

2021-11-12 09:40:03 +00:00

overlap.ll

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OverwriteStoreBegin.ll

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OverwriteStoreEnd.ll

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PartialStore2.ll

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PartialStore.ll

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phi-translation.ll

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pr11390.ll

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pr47285-not-overwritten-on-all-exit-paths.ll

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read-clobber-after-overwrite.ll

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scoped-noalias.ll

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simple-preservation.ll

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simple.ll

[TLI] Check that malloc argument has type size_t

2022-03-14 17:22:24 +01:00

stats.ll

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store-after-loop.ll

[DSE] Fix invalid removal of store instruction

2021-12-22 16:11:23 -05:00

stores-of-existing-values.ll

[DSE] Fix typo in recent commit

2021-12-24 11:25:25 +01:00

tail-byval.ll

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trivial-dse-calls.ll

[tests] Add coverage of writeonly attribute and operand bundle intersection

2022-01-18 12:08:14 -08:00

wrong-malloc-size.ll

[TLI] Check that malloc argument has type size_t

2022-03-14 17:22:24 +01:00