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Sanjay Patel 8f04b72eb3 [PassManager] adjust VectorCombine placement 
The initial placement of vector-combine in the opt pipeline revealed phase ordering bugs:
https://bugs.llvm.org/show_bug.cgi?id=45015
https://bugs.llvm.org/show_bug.cgi?id=42022

This patch contains a few independent changes:

1. Move the pass up in the pipeline, so it happens just after loop-vectorization.
   This is only to keep vectorization passes together in the pipeline at the moment.
   I don't have evidence of interaction between these yet.
2. Add an -early-cse pass after -vector-combine to clean up redundant ops. This was
   partly proposed as far back as rL219644 (which is why it's effectively being moved
   in the old PM code). This is important because the subsequent -instcombine doesn't
   work as well without EarlyCSE. With the CSE, -instcombine is able to squash
   shuffles together in 1 of the tests (because those are simple "select" shuffles).
3. Remove the -vector-combine pass that was running after SLP. We may want to do that
   eventually, but I don't have a test case to support it yet.

Differential Revision: https://reviews.llvm.org/D75145
2020-03-04 11:10:49 -05:00
..
Inputs Restore "[ThinLTO] Add additional ThinLTO pipeline testing with new PM" 2020-01-15 07:33:08 -08:00
X86 [test] More tests to target specific directories after CodeGenPrepare requires TargetPassConfig (D73754) 2020-02-02 10:43:02 -08:00
2002-01-31-CallGraph.ll
2002-02-24-InlineBrokePHINodes.ll
2002-03-11-ConstPropCrash.ll
2003-02-19-LoopInfoNestingBug.ll
2004-08-16-PackedConstantInlineStore.ll
2004-08-16-PackedGlobalConstant.ll
2004-08-16-PackedSelect.ll
2004-08-16-PackedSimple.ll
2004-08-20-PackedControlFlow.ll
2006-02-05-PassManager.ll
2007-06-05-PassID.ll Revert "Extend CFGPrinter and CallPrinter with Heat Colors" 2018-06-29 17:48:58 +00:00
2007-06-28-PassManager.ll
2007-09-10-PassManager.ll
2008-02-14-PassManager.ll
2008-06-04-FieldSizeInPacked.ll
2008-10-06-RemoveDeadPass.ll
2008-10-15-MissingSpace.ll
2009-03-31-CallGraph.ll
2009-06-05-no-implicit-float.ll
2009-09-14-function-elements.ll
2010-05-06-Printer.ll [PassInstrumentation] Remove excess newline for the new pass manager 2019-11-28 17:20:17 -08:00
attribute-comment.ll Migrate function attribute "no-frame-pointer-elim" to "frame-pointer"="all" as cleanups after D56351 2019-12-24 15:57:33 -08:00
available-externally-lto.ll [clang][NewPM] Do not eliminate available_externally durng -O2 -flto runs 2019-06-20 19:44:51 +00:00
bcanalyzer-block-info.txt
bcanalyzer-dump-option.txt [llvm-bcanalyzer] Don't dump the contents if -dump is not passed 2019-11-13 10:38:57 -08:00
can-execute.txt test/Other/can-execute.txt: delete %t after the test 2018-09-14 20:41:42 +00:00
cfg_deopt_unreach.ll Use temporary directory for tests in D74346 2020-02-24 12:19:07 +01:00
cfg-printer-branch-weights.ll [CFG Printer] Add support for writing the dot files with a custom 2018-10-09 04:30:23 +00:00
cgscc-devirt-iteration.ll [BuildLibCalls] Noalias annotation 2019-08-14 16:50:06 +00:00
cgscc-disconnected-invalidation.ll
cgscc-iterate-function-mutation.ll
cgscc-libcall-update.ll [SimplifyLibCalls] Mark known arguments with nonnull 2019-09-17 09:32:52 +00:00
cgscc-observe-devirt.ll
cleanup-lcssa.ll
codegenprepare-and-debug.ll Fix inconsistency with/without debug information (-g) 2018-08-07 12:14:01 +00:00
constant-fold-gep-address-spaces.ll
constant-fold-gep.ll
cspgo-O2-pipeline.ll [PGO] Context sensitive PGO (part 4) 2019-03-06 19:31:37 +00:00
debugcounter-dce.ll [DCE] Add DebugCounter support 2018-09-13 20:29:50 +00:00
debugcounter-earlycse.ll
debugcounter-newgvn.ll
debugcounter-predicateinfo.ll [PredicateInfo] Use custom mangling to support ssa_copy with unnamed types. 2018-07-24 14:49:52 +00:00
extract-alias.ll
extract-linkonce.ll
extract-weak-odr.ll
extract.ll
FileCheck-space.txt
invalid-commandline-option.ll
invariant.group.ll [FunctionAttrs] Annotate "willreturn" for intrinsics 2019-07-28 06:09:56 +00:00
lint.ll [instrinsics] Add @llvm.memcpy.inline instrinsics 2020-01-28 09:42:01 +01:00
lit-globbing.ll
lit-quoting.txt
lit-unicode.txt Remove some unnecessary REQUIRES: shell lines 2019-09-10 00:06:52 +00:00
llvm-nm-without-aliases.ll [llvm-nm][llvm-readelf] Avoid single-dash -long-option in tests 2019-04-27 16:12:14 +00:00
loop-deletion-printer.ll [NewPM] -print-module-scope -print-after now prints module even after invalidated Loop/SCC 2018-12-21 11:49:05 +00:00
loop-pass-ordering.ll
loop-pass-printer.ll [New PM][PassInstrumentation] IR printing support for New Pass Manager 2018-09-24 16:08:15 +00:00
loop-pm-invalidation.ll [New PM] Introducing PassInstrumentation framework 2018-09-20 17:08:45 +00:00
machine-size-remarks.ll Add REQUIRES line to machine-size-remarks 2018-09-10 23:53:08 +00:00
module-pass-printer.ll IR printing for single function with the new pass manager. 2020-02-23 15:28:57 -08:00
new-pass-manager.ll Change TargetLibraryInfo analysis passes to always require Function 2019-09-07 03:09:36 +00:00
new-pm-cspgo.ll [PGO] Context sensitive PGO (part 4) 2019-03-06 19:31:37 +00:00
new-pm-defaults.ll [PassManager] adjust VectorCombine placement 2020-03-04 11:10:49 -05:00
new-pm-lto-defaults.ll Revert "Restore "[WPD/LowerTypeTests] Delay lowering/removal of type tests until after ICP"" 2020-03-02 14:02:13 -08:00
new-pm-pgo-O0.ll [PGO] Add PGO support at -O0 in the experimental new pass manager 2019-08-01 22:36:34 +00:00
new-pm-pgo.ll Restore "[ThinLTO] Add additional ThinLTO pipeline testing with new PM" 2020-01-15 07:33:08 -08:00
new-pm-pr42726-cgscc.ll [NewPassManager] Resolve assertion in CGSCCPassManager when CallCounts change. 2019-08-02 18:37:03 +00:00
new-pm-thinlto-defaults.ll [PassManager] adjust VectorCombine placement 2020-03-04 11:10:49 -05:00
new-pm-thinlto-postlink-pgo-defaults.ll [PassManager] adjust VectorCombine placement 2020-03-04 11:10:49 -05:00
new-pm-thinlto-postlink-samplepgo-defaults.ll [PassManager] adjust VectorCombine placement 2020-03-04 11:10:49 -05:00
new-pm-thinlto-prelink-pgo-defaults.ll Compute ORE, BPI, BFI in Loop passes. 2020-02-12 09:15:18 -08:00
new-pm-thinlto-prelink-samplepgo-defaults.ll Compute ORE, BPI, BFI in Loop passes. 2020-02-12 09:15:18 -08:00
opt-bisect-helper.py Python compat - print statement 2019-01-03 14:11:33 +00:00
opt-bisect-legacy-pass-manager.ll [lit, python] Always add quotes around the python path in lit 2018-08-06 22:37:44 +00:00
opt-hot-cold-split.ll [HotColdSplit] Schedule splitting late to fix perf regression 2019-02-15 18:46:44 +00:00
opt-O0-pipeline.ll Generalize the pass registration mechanism used by Polly to any third-party tool 2020-01-02 16:45:31 +01:00
opt-O2-pipeline.ll [PassManager] adjust VectorCombine placement 2020-03-04 11:10:49 -05:00
opt-O3-pipeline.ll [PassManager] adjust VectorCombine placement 2020-03-04 11:10:49 -05:00
opt-Os-pipeline.ll [PassManager] adjust VectorCombine placement 2020-03-04 11:10:49 -05:00
opt-override-frame-pointer.ll llc: Don't overwrite frame-pointer attribute 2020-01-15 20:56:46 -05:00
opt-override-mcpu-mattr.ll llc: Change behavior of -mattr with existing attribute 2020-01-15 19:46:01 -05:00
opt-pipeline-vector-passes.ll [PassManager] add tests for vector pass enabling; NFC 2020-02-29 07:56:41 -05:00
opt-twice.ll
optimization-remarks-inline.ll Revert "Revert "Reland "[Support] make report_fatal_error abort instead of exit""" 2020-02-13 10:16:06 -08:00
optimization-remarks-invalidation.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
optimization-remarks-lazy-bfi.ll [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
optimize-inrange-gep.ll Prevent Constant Folding From Optimizing inrange GEP 2018-09-11 01:53:36 +00:00
optimize-options.ll
pass-pipeline-parsing.ll [NewPM] Fixing test failure on Windows - removed opt binary name from pattern 2018-10-17 11:01:15 +00:00
pass-pipelines.ll [LoopRotate] Get and update MSSA only if available in legacy pass manager. 2020-02-14 10:47:26 -08:00
pipefail.txt
pr32085.ll Use no-op opt run to eliminate the difference in bb pred comment, per chandler's suggestion. It is better than using sed on portability. 2018-05-01 17:19:25 +00:00
print-debug-counter.ll Actually fix test from r345085 REQUIRE: asserts 2018-10-23 22:07:34 +00:00
print-module-scope.ll Migrate function attribute "no-frame-pointer-elim" to "frame-pointer"="all" as cleanups after D56351 2019-12-24 15:57:33 -08:00
print-slotindexes.ll [SlotIndexes] Add print-slotindexes to disable printing slotindexes 2019-08-22 13:44:47 +00:00
printer.ll [PassInstrumentation] Remove excess newline for the new pass manager 2019-11-28 17:20:17 -08:00
ResponseFile.ll
scalable-vector-array.ll Scalable Vector IR Type with further LTO fixes 2019-07-05 12:48:16 +00:00
scalable-vector-struct.ll Scalable Vector IR Type with further LTO fixes 2019-07-05 12:48:16 +00:00
scalable-vectors-core-ir.ll [SVE][IR] Scalable Vector size queries and IR instruction support 2019-10-08 12:53:54 +00:00
scc-deleted-printer.ll [NewPM] -print-module-scope -print-after now prints module even after invalidated Loop/SCC 2018-12-21 11:49:05 +00:00
scc-pass-printer.ll Fixing -print-module-scope for legacy SCC passes 2018-12-03 14:48:15 +00:00
size-remarks.ll Make YAML quote forward slashes. 2018-10-12 16:31:20 +00:00
spir_cc.ll
statistic.ll Reland: [Timers] Use the pass argument name for JSON keys in time-passes 2018-06-13 21:03:56 +00:00
time-passes.ll [TimePasses] allow -time-passes reporting into a custom stream 2019-03-15 22:15:23 +00:00
unroll-sroa.ll [NewPM] Add an SROA pass after loop unroll 2019-11-01 14:59:08 -07:00
writing-to-stdout.ll