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1111ea1a18
llvm/test/TableGen
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Daniel Sanders 1111ea1a18 [tablegen][globalisel] Capture instructions into locals and related infrastructure for multiple instructions matches. 
Summary:
Prepare the way for nested instruction matching support by having actions
like CopyRenderer look up operands in the RuleMatcher rather than a
specific InstructionMatcher. This allows actions to reference any operand
from any matched instruction.

It works by checking the 'shape' of the match and capturing
each matched instruction to a local variable. If the shape is wrong
(not enough operands, leaf nodes where non-leafs are expected, etc.), then
the rule exits early without checking the predicates. Once we've captured
the instructions, we then test the predicates as before (except using the
local variables). If the match is successful, then we render the new
instruction as before using the local variables.

It's not noticable in this patch but by the time we support multiple
instruction matching, this patch will also cause a significant improvement
to readability of the emitted code since
MRI.getVRegDef(I->getOperand(0).getReg()) will simply be MI1 after
emitCxxCaptureStmts().

This isn't quite NFC because I've also fixed a bug that I'm surprised we
haven't encountered yet. It now checks there are at least the expected
number of operands before accessing them with getOperand().

Depends on D30531

Reviewers: t.p.northover, qcolombet, aditya_nandakumar, ab, rovka

Reviewed By: rovka

Subscribers: dberris, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D30535

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298257 91177308-0d34-0410-b5e6-96231b3b80d8
2017-03-20 15:20:42 +00:00
..
2003-08-03-PassCode.td Remove 6 of XFAIL(s) in llvm/test/TableGen, since r193736. They have been XPASSing. 2013-11-10 14:25:44 +00:00
2006-09-18-LargeInt.td FileCheckize some tests. 2013-08-22 20:46:05 +00:00
2010-03-24-PrematureDefaults.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
AnonDefinitionOnDemand.td
AsmPredicateCondsEmission.td Use std::bitset for SubtargetFeatures. 2015-05-26 10:47:10 +00:00
AsmVariant.td [TableGen] AsmMatcher: Add AsmVariantName to Instruction class. 2016-09-08 15:50:52 +00:00
BitOffsetDecoder.td Update test case to match minor formatting change introduced in r218563. 2014-09-27 05:36:53 +00:00
BitsInit.td Tablegen fixes for new syntax when initializing bits from variables. 2014-08-29 19:41:04 +00:00
BitsInitOverflow.td
cast-list-initializer.td TableGen: Support folding casts from bits to int 2015-07-31 01:12:06 +00:00
cast.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
ClassInstanceValue.td [TableGen] Fully resolve class-instance values before defs in multiclasses 2014-09-16 17:14:13 +00:00
CStyleComment.td Remove 6 of XFAIL(s) in llvm/test/TableGen, since r193736. They have been XPASSing. 2013-11-10 14:25:44 +00:00
Dag.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
defmclass.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
DefmInherit.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
DefmInsideMultiClass.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
DuplicateFieldValues.td [tablegen] Delete duplicates from a vector without skipping elements 2016-12-01 19:38:50 +00:00
eq.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
eqbit.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
FieldAccess.td
foreach.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
ForeachList.td llvm/test/TableGen/*Foreach*.td: Remove XFAIL:vg_leak. They have not been failing since r215176. 2014-08-12 14:06:21 +00:00
ForeachLoop.td llvm/test/TableGen/*Foreach*.td: Remove XFAIL:vg_leak. They have not been failing since r215176. 2014-08-12 14:06:21 +00:00
ForwardRef.td
GeneralList.td test/TableGen: Remove XFAIL:vg_leak out of 3 tests corresponding to r208293. 2014-05-09 08:18:33 +00:00
GlobalISelEmitter.td [tablegen][globalisel] Capture instructions into locals and related infrastructure for multiple instructions matches. 2017-03-20 15:20:42 +00:00
if-empty-list-arg.td Fix error in tablegen when either operand of !if is an empty list. 2014-06-10 20:10:08 +00:00
if.td Change BitsInit to inherit from TypedInit. 2014-08-07 05:47:04 +00:00
ifbit.td Update BitRecTy::convertValue to allow if expressions with bit values on both sides of the if 2014-08-07 05:47:10 +00:00
Include.inc
Include.td Remove 6 of XFAIL(s) in llvm/test/TableGen, since r193736. They have been XPASSing. 2013-11-10 14:25:44 +00:00
IntBitInit.td Remove 6 of XFAIL(s) in llvm/test/TableGen, since r193736. They have been XPASSing. 2013-11-10 14:25:44 +00:00
intrinsic-long-name.td Declare MVT::SimpleValueType as an int8_t sized enum. This removes 400 bytes from TargetLoweringBase and probably other places. 2016-04-17 17:37:33 +00:00
intrinsic-varargs.td SelectionDAG: Make Properties a field of SDPatternOperator 2016-02-10 18:40:04 +00:00
LazyChange.td FileCheckize some tests. 2013-08-22 20:46:05 +00:00
LetInsideMultiClasses.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
lisp.td test/TableGen: Remove XFAIL:vg_leak out of 3 tests corresponding to r208293. 2014-05-09 08:18:33 +00:00
list-element-bitref.td Change BitsInit to inherit from TypedInit. 2014-08-07 05:47:04 +00:00
ListArgs.td
ListArgsSimple.td
listconcat.td test/TableGen: Remove XFAIL:vg_leak out of 3 tests corresponding to r208293. 2014-05-09 08:18:33 +00:00
ListConversion.td
ListManip.td
ListOfList.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
ListSlices.td
lit.local.cfg
LoLoL.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
math.td TableGen: Add operator !or 2016-11-15 06:49:28 +00:00
MultiClass.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
MultiClassDefName.td [TableGen] Resolve complex def names inside multiclasses 2015-05-21 04:32:56 +00:00
MultiClassInherit.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
MultiPat.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
nested-comment.td Remove 6 of XFAIL(s) in llvm/test/TableGen, since r193736. They have been XPASSing. 2013-11-10 14:25:44 +00:00
NestedForeach.td llvm/test/TableGen/*Foreach*.td: Remove XFAIL:vg_leak. They have not been failing since r215176. 2014-08-12 14:06:21 +00:00
Paste.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
pr8330.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
RegisterBankEmitter.td TableGen: Fix infinite recursion in RegisterBankEmitter 2017-01-30 15:07:01 +00:00
SetTheory.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
SiblingForeach.td llvm/test/TableGen/*Foreach*.td: Remove XFAIL:vg_leak. They have not been failing since r215176. 2014-08-12 14:06:21 +00:00
Slice.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
strconcat.td [tablegen] !strconcat accepts more than two arguments but this wasn't documented or tested. 2014-05-02 19:25:52 +00:00
String.td Remove 6 of XFAIL(s) in llvm/test/TableGen, since r193736. They have been XPASSing. 2013-11-10 14:25:44 +00:00
subst2.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
subst.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
SuperSubclassSameName.td
TargetInstrInfo.td
TargetInstrSpec.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
TemplateArgRename.td
Tree.td
TreeNames.td
trydecode-emission2.td tests: accept different TargetOpcode values. 2016-07-07 17:51:42 +00:00
trydecode-emission3.td tests: accept different TargetOpcode values. 2016-07-07 17:51:42 +00:00
trydecode-emission.td tests: accept different TargetOpcode values. 2016-07-07 17:51:42 +00:00
TwoLevelName.td Add test cases that will show the bug that was fixed in r256725. 2016-01-13 07:53:11 +00:00
UnsetBitInit.td
UnterminatedComment.td
usevalname.td Mark 36 tests as XFAIL:vg_leak in llvm/test/TableGen. 2013-11-10 14:26:08 +00:00
ValidIdentifiers.td FileCheckize r197869 2013-12-22 03:43:58 +00:00