llvm/test/Feature
Joseph Tremoulet d4a765f88a [WinEH] Require token linkage in EH pad/ret signatures
Summary:
WinEHPrepare is going to require that cleanuppad and catchpad produce values
of token type which are consumed by any cleanupret or catchret exiting the
pad.  This change updates the signatures of those operators to require/enforce
that the type produced by the pads is token type and that the rets have an
appropriate argument.

The catchpad argument of a `CatchReturnInst` must be a `CatchPadInst` (and
similarly for `CleanupReturnInst`/`CleanupPadInst`).  To accommodate that
restriction, this change adds a notion of an operator constraint to both
LLParser and BitcodeReader, allowing appropriate sentinels to be constructed
for forward references and appropriate error messages to be emitted for
illegal inputs.

Also add a verifier rule (noted in LangRef) that a catchpad with a catchpad
predecessor must have no other predecessors; this ensures that WinEHPrepare
will see the expected linear relationship between sibling catches on the
same try.

Lastly, remove some superfluous/vestigial casts from instruction operand
setters operating on BasicBlocks.

Reviewers: rnk, majnemer

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D12108

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245797 91177308-0d34-0410-b5e6-96231b3b80d8
2015-08-23 00:26:33 +00:00
..
alias2.ll
aliases.ll
alignment.ll
attributes.ll
basictest.ll
callingconventions.ll
calltest.ll
casttest.ll
cfgstructures.ll
cold.ll
comdat.ll
const_pv.ll
constexpr.ll
constpointer.ll
escaped_label.ll
exception.ll
float.ll
fold-fpcast.ll
forwardreftest.ll
global_pv.ll
global_section.ll
globalredefinition3.ll
globalvars.ll
indirectcall2.ll
indirectcall.ll
inlineasm.ll
instructions.ll
intrinsic-noduplicate.ll
intrinsics.ll
load_module.ll
md_on_instruction.ll
memorymarkers.ll
metadata.ll
minsize_attr.ll
NamedMDNode2.ll
NamedMDNode.ll
newcasts.ll
optnone-llc.ll
optnone-opt.ll
optnone.ll
packed_struct.ll
packed.ll
paramattrs.ll
ppcld.ll
prefixdata.ll
prologuedata.ll
properties.ll
prototype.ll
README.txt
recursivetype.ll
seh-nounwind.ll
simplecalltest.ll
small.ll
smallest.ll
sparcld.ll
terminators.ll
testalloca.ll
testconstants.ll
testlogical.ll
testtype.ll
testvarargs.ll
undefined.ll
unreachable.ll
varargs_new.ll
varargs.ll
vector-cast-constant-exprs.ll
weak_constant.ll
weirdnames.ll
x86ld.ll

This directory contains test cases for individual source features of LLVM.
It is designed to make sure that the major components of LLVM support all of the
features of LLVM, for very small examples.  Entire programs should not go here.

Regression tests for individual bug fixes should go into the test/Regression dir.