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llvm-project/llvm/test/Transforms/Inline
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Joseph Tremoulet b41632bf0f [Inliner/WinEH] Honor implicit nounwinds 
Summary:
Funclet EH tables require that a given funclet have only one unwind
destination for exceptional exits.  The verifier will therefore reject
e.g. two cleanuprets with different unwind dests for the same cleanup, or
two invokes exiting the same funclet but to different unwind dests.
Because catchswitch has no 'nounwind' variant, and because IR producers
are not *required* to annotate calls which will not unwind as 'nounwind',
it is legal to nest a call or an "unwind to caller" catchswitch within a
funclet pad that has an unwind destination other than caller; it is
undefined behavior for such a call or catchswitch to unwind.

Normally when inlining an invoke, calls in the inlined sequence are
rewritten to invokes that unwind to the callsite invoke's unwind
destination, and "unwind to caller" catchswitches in the inlined sequence
are rewritten to unwind to the callsite invoke's unwind destination.
However, if such a call or "unwind to caller" catchswitch is located in a
callee funclet that has another exceptional exit with an unwind
destination within the callee, applying the normal transformation would
give that callee funclet multiple unwind destinations for its exceptional
exits.  There would be no way for EH table generation to determine which
is the "true" exit, and the verifier would reject the function
accordingly.

Add logic to the inliner to detect these cases and leave such calls and
"unwind to caller" catchswitches as calls and "unwind to caller"
catchswitches in the inlined sequence.

This fixes PR26147.


Reviewers: rnk, andrew.w.kaylor, majnemer

Subscribers: alexcrichton, llvm-commits

Differential Revision: http://reviews.llvm.org/D16319

llvm-svn: 258273
 		2016-01-20 02:15:15 +00:00
..
X86 Make an X86 specific directory and put the recent X86 tti specific 2015-07-02 01:36:31 +00:00
2003-09-14-InlineValue.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
2003-09-22-PHINodeInlineFail.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
2003-09-22-PHINodesInExceptionDest.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
2003-09-22-PHINodesInNormalInvokeDest.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
2003-10-13-AllocaDominanceProblem.ll
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2004-04-15-InlineDeletesCall.ll
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2004-04-20-InlineLinkOnce.ll
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2004-10-17-InlineFunctionWithoutReturn.ll
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2006-01-14-CallGraphUpdate.ll
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2006-07-12-InlinePruneCGUpdate.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2006-11-09-InlineCGUpdate-2.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
2006-11-09-InlineCGUpdate.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
2007-04-15-InlineEH.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
2007-06-25-WeakInline.ll
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2007-12-19-InlineNoUnwind.ll
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2008-09-02-NoInline.ll
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2009-01-08-NoInlineDynamicAlloca.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2009-01-13-RecursiveInlineCrash.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2009-05-07-CallUsingSelfCrash.ll
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2010-05-12-ValueMap.ll
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PR4909.ll
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align.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
alloca-bonus.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
alloca-dbgdeclare-merge.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
alloca-dbgdeclare.ll Revert "Change memcpy/memset/memmove to have dest and source alignments." 2015-11-19 05:56:52 +00:00
alloca-in-scc.ll [opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction 2015-02-27 19:29:02 +00:00
alloca-merge-align.ll Make DataLayout Non-Optional in the Module 2015-03-04 18:43:29 +00:00
alloca_test.ll
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always-inline.ll
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array_merge.ll
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attributes.ll [Inliner] Merge the attributes of the caller and callee functions 2016-01-13 06:02:45 +00:00
basictest.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
blockaddress.ll
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byval-tail-call.ll Reapply 239795 - [InstCombine] Propagate non-null facts to call parameters 2015-06-16 20:24:25 +00:00
byval.ll [opaque pointer type] Add textual IR support for explicit type parameter to gep operator 2015-03-13 18:20:45 +00:00
byval_lifetime.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
callgraph-update.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
casts.ll
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cfg_preserve_test.ll
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crash-lifetime-marker.ll [InlineFunction] Don't add lifetime markers for zero-sized allocas. 2015-04-20 16:11:05 +00:00
crash.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
crash2.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
debug-info-duplicate-calls.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
debug-invoke.ll DI: Require subprogram definitions to be distinct 2015-08-28 20:26:49 +00:00
delete-call.ll
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deopt-bundles.ll Nonnull elements in OperandBundleCallSites are not all Instructions 2015-12-19 22:40:28 +00:00
devirtualize-2.ll [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
devirtualize-3.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
devirtualize.ll [opaque pointer type] Add textual IR support for explicit type parameter to gep operator 2015-03-13 18:20:45 +00:00
dynamic_alloca_test.ll
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ephemeral.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
externally_available.ll
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frameescape.ll Rename llvm.frameescape and llvm.framerecover to localescape and localrecover 2015-07-07 22:25:32 +00:00
gvn-inline-iteration.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
ignore-debug-info.ll DI: Require subprogram definitions to be distinct 2015-08-28 20:26:49 +00:00
inline-assume.ll [Inline] Use AssumptionCache from the right Function 2015-09-23 15:49:08 +00:00
inline-byval-bonus.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
inline-cold-callee.ll Determine callee's hotness and adjust threshold based on that. NFC. 2015-12-22 00:32:35 +00:00
inline-cold.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
inline-constexpr-addrspacecast-argument.ll Fix assert when inlining a constantexpr addrspacecast 2015-07-27 18:31:03 +00:00
inline-fast-math-flags.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
inline-fp.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
inline-funclets.ll [Inliner/WinEH] Honor implicit nounwinds 2016-01-20 02:15:15 +00:00
inline-hot-callee.ll Determine callee's hotness and adjust threshold based on that. NFC. 2015-12-22 00:32:35 +00:00
inline-indirect.ll Fix a crash in the assumption cache when inlining indirect function calls 2015-02-12 21:04:22 +00:00
inline-invoke-tail.ll Revert "Change memcpy/memset/memmove to have dest and source alignments." 2015-11-19 05:56:52 +00:00
inline-invoke-with-asm-call.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
inline-musttail-varargs.ll [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
inline-optnone.ll
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inline-optsize.ll fix typos; NFC 2015-08-11 16:10:41 +00:00
inline-tail.ll
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inline-vla.ll Revert "Change memcpy/memset/memmove to have dest and source alignments." 2015-11-19 05:56:52 +00:00
inline_cleanup.ll
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inline_constprop.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
inline_dbg_declare.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
inline_dce.ll
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inline_invoke.ll Sort the enums in Attributes.h in case insensitive alphabetical order. 2015-11-11 02:11:46 +00:00
inline_minisize.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
inline_prune.ll
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inline_returns_twice.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
inline_ssp.ll [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
invoke-cleanup.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
invoke-combine-clauses.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
invoke-cost.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
invoke_test-1.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
invoke_test-2.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
invoke_test-3.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
lifetime-no-datalayout.ll Make DataLayout Non-Optional in the Module 2015-03-04 18:43:29 +00:00
lifetime.ll
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nested-inline.ll
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noalias-calls.ll Revert "Change memcpy/memset/memmove to have dest and source alignments." 2015-11-19 05:56:52 +00:00
noalias-cs.ll Have a single way for creating unique value names. 2015-11-22 00:16:24 +00:00
noalias.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
noalias2.ll Have a single way for creating unique value names. 2015-11-22 00:16:24 +00:00
noinline-recursive-fn.ll
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noinline.ll
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nonnull.ll Teach InlineCost to account for a null check which can be folded away 2015-06-26 20:51:17 +00:00
null-function.ll
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optimization-remarks.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
pr21206.ll Change the .ll syntax for comdats and add a syntactic sugar. 2015-01-06 22:55:16 +00:00
pr22285.ll [Inliner] Discard empty COMDAT groups 2015-05-05 20:14:22 +00:00
ptr-diff.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
recursive.ll
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store-sroa.ll Correctly estimate SROA savings for store operands in inline cost analysis. 2015-03-20 18:33:12 +00:00
switch.ll
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vector-bonus.ll [inliner] Fix the early-exit of the inline cost analysis to correctly 2015-05-27 02:49:05 +00:00
zero-cost.ll Inliner: Do zero-cost inlines even if above a negative threshold (PR24851) 2015-11-10 09:47:48 +00:00