Reid Kleckner 40e7663b1f [BasicAA] Don't assume tail calls with byval don't alias allocas ... Summary: Calls marked 'tail' cannot read or write allocas from the current frame because the current frame might be destroyed by the time they run. However, a tail call may use an alloca with byval. Calling with byval copies the contents of the alloca into argument registers or stack slots, so there is no lifetime issue. Tail calls never modify allocas, so we can return just ModRefInfo::Ref. Fixes PR38466, a longstanding bug. Reviewers: hfinkel, nlewycky, gbiv, george.burgess.iv Subscribers: hiraditya, llvm-commits Differential Revision: https://reviews.llvm.org/D50679 llvm-svn: 339636		2018-08-14 01:24:35 +00:00
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2011-03-25-DSEMiscompile.ll	…
2011-09-06-EndOfFunction.ll	…
2011-09-06-MemCpy.ll	Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)	2018-01-19 17:13:12 +00:00
2016-07-17-UseAfterFree.ll	Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)	2018-01-19 17:13:12 +00:00
OverwriteStoreBegin.ll	[DSE] Teach the pass about partial overwrite of atomic memory intrinsics	2018-05-10 15:12:49 +00:00
OverwriteStoreEnd.ll	[DSE] Teach the pass about partial overwrite of atomic memory intrinsics	2018-05-10 15:12:49 +00:00
PartialStore.ll	…
atomic.ll	…
calloc-store.ll	…
combined-partial-overwrites.ll	Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)	2018-01-19 17:13:12 +00:00
const-pointers.ll	…
crash.ll	Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)	2018-01-19 17:13:12 +00:00
cs-cs-aliasing.ll	Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)	2018-01-19 17:13:12 +00:00
debuginfo.ll	[Debugify] Move debug value intrinsics closer to their operand defs	2018-06-06 19:05:42 +00:00
dominate.ll	…
fence.ll	…
free.ll	…
inst-limits.ll	[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.	2018-05-09 02:40:45 +00:00
int_sideeffect.ll	…
invariant.start.ll	…
launder.invariant.group.ll	Implement strip.invariant.group	2018-07-02 04:49:30 +00:00
libcalls.ll	…
lifetime.ll	Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)	2018-01-19 17:13:12 +00:00
mda-with-dbg-values.ll	[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.	2018-05-09 02:40:45 +00:00
memintrinsics.ll	[DSE] Teach the pass that atomic memory intrinsics are stores.	2018-04-23 19:06:49 +00:00
merge-stores-big-endian.ll	…
merge-stores.ll	[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.	2018-05-09 02:40:45 +00:00
no-targetdata.ll	Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)	2018-01-19 17:13:12 +00:00
operand-bundles.ll	…
pr11390.ll	Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)	2018-01-19 17:13:12 +00:00
simple.ll	[DSE] Teach the pass that atomic memory intrinsics are stores.	2018-04-23 19:06:49 +00:00
tail-byval.ll	[BasicAA] Don't assume tail calls with byval don't alias allocas	2018-08-14 01:24:35 +00:00