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Thomas Lively 40af48101b [WebAssembly] Optimize splats of bitcasted vectors 
Summary:
This new custom DAG combine fixes a codegen issue with the
wasm_simd128.h intrinsics. Clang lowers the

  return (v128_t)(__f32x4){__a, __a, __a, __a};

body of f32x4_splat to a splat shuffle of a bitcasted vector, as seen
in the new simd-shuffle-bitcast.ll test. The bitcast interfered with
the target-independent DAG combine that combines splat shuffles into
BUILD_VECTOR nodes, so this patch introduces a new custom DAG combine
to hoist the bitcast out of the shuffle, allowing the
target-independent combine to work as intended.

Reviewers: aheejin, dschuff

Subscribers: sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D80021
 		2020-05-15 12:12:20 -07:00
..
PR40172.ll [WebAssembly][FastISel] Do not assume naive CmpInst lowering 2019-01-14 22:03:43 +00:00
PR40267.ll [LegalizeVectorTypes] Allow illegal indices when splitting extract_vector_elt 2019-01-31 00:35:37 +00:00
PR41149.ll [SelectionDAG] Add scalarization of ABS node (PR41149) 2019-03-21 11:18:54 +00:00
PR41841.ll [WebAssembly] Don't assume that zext/sext result is i32/i64 in fast isel (PR41841) 2019-05-13 19:40:18 +00:00
add-prototypes-conflict.ll [WebAssembly] Fix a typo in a test file name 2019-07-09 01:21:04 +00:00
add-prototypes.ll [WebAssembly] Make sret parameter work with AddMissingPrototypes 2019-07-09 02:10:33 +00:00
address-offsets.ll [WebAssembly] Limit PIC support to the Emscripten target 2019-06-05 20:01:01 +00:00
atomic-fence.ll [WebAssembly] Add atomic.fence instruction 2019-08-28 23:13:43 +00:00
atomic-fence.mir [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
atomic-mem-consistency.ll [WebAssembly] Remove uses of ThreadModel 2019-02-28 18:39:08 +00:00
atomic-rmw.ll [WebAssembly] Remove uses of ThreadModel 2019-02-28 18:39:08 +00:00
bulk-memory-intrinsics.ll [WebAssembly] Bulk memory intrinsics and builtins 2019-02-13 22:11:16 +00:00
bulk-memory.ll [WebAssembly] Restore defaults for stores per memop 2019-09-18 23:18:16 +00:00
byval.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
call-pic.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
call.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
cfg-stackify-dbg-skip.ll [WebAssembly] Run ExplicitLocals pass after CFGStackify 2019-03-30 09:29:57 +00:00
cfg-stackify-dbg.mir [WebAssembly] Handle END_LOOP in unreachable BB in CFGStackify 2019-03-29 19:36:51 +00:00
cfg-stackify-eh.ll [WebAssembly] Fix block marker placing after fixUnwindMismatches 2020-05-05 02:06:47 -07:00
cfg-stackify.ll [WebAssembly] Emit br_table for most switch instructions 2019-04-23 21:30:30 +00:00
cfi.ll
…
clear-cache.ll Revert "Revert "Reland "[Support] make report_fatal_error `abort` instead of `exit`""" 2020-02-13 10:16:06 -08:00
comparisons-f32.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
comparisons-f64.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
comparisons-i32.ll [WebAssembly][FastISel] Do not assume naive CmpInst lowering 2019-01-14 22:03:43 +00:00
comparisons-i64.ll [WebAssembly][FastISel] Do not assume naive CmpInst lowering 2019-01-14 22:03:43 +00:00
conv-trap.ll [WebAssembly] Trapping fptoint builtins and intrinsics 2019-10-15 01:11:51 +00:00
conv.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
copysign-casts.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
cpus.ll Revert "Revert "Reland "[Support] make report_fatal_error `abort` instead of `exit`""" 2020-02-13 10:16:06 -08:00
custom-sections.ll [WebAssembly] Add languages from debug info to producers section 2019-01-18 02:47:48 +00:00
dbgvalue.ll
…
dead-vreg.ll [WebAssembly] replaced .param/.result by .functype 2018-11-19 17:10:36 +00:00
debugtest-opt.ll [WebAssembly] Add int32 DW_OP_WASM_location variant 2020-04-16 16:32:17 -07:00
divrem-constant.ll
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eh-labels.mir [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
eh-lsda.ll Reland "[WebAssembly] LSDA info generation" 2018-10-25 23:55:10 +00:00
exception.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
explicit-locals.mir [WebAssembly] Make returns variadic 2019-10-09 21:42:08 +00:00
export-name.ll [WebAssembly] Add new `export_name` clang attribute for controlling wasm export names 2019-12-11 11:54:57 -08:00
f16.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
f32.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
f64.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
fast-isel-br-i1.ll
…
fast-isel-i24.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
fast-isel-i256.ll [WebAssembly] replaced .param/.result by .functype 2018-11-19 17:10:36 +00:00
fast-isel-noreg.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
fast-isel.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
frem.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
func.ll [WebAssembly] replaced .param/.result by .functype 2018-11-19 17:10:36 +00:00
function-bitcasts-varargs.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
function-bitcasts.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
function-info.mir [WebAssembly] Make returns variadic 2019-10-09 21:42:08 +00:00
global.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
global_dtors.ll [WebAssembly] Fix crash when @llvm.global_dtors is external 2019-03-01 00:12:13 +00:00
globl.ll
…
i32-load-store-alignment.ll Fix typo in comment 2019-01-09 14:20:20 +00:00
i32.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
i64-load-store-alignment.ll Fix typo in comment 2019-01-09 14:20:20 +00:00
i64.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
i128-returned.ll [WebAssembly] replaced .param/.result by .functype 2018-11-19 17:10:36 +00:00
i128.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
ident.ll
…
immediates.ll [WebAssembly] replaced .param/.result by .functype 2018-11-19 17:10:36 +00:00
implicit-def.ll [WebAssembly] Disable MachineBlockPlacement pass 2019-03-05 20:35:34 +00:00
import-module.ll [WebAssembly] Add codegen support for the import_field attribute 2019-02-01 22:27:34 +00:00
indirect-import.ll Migrate function attribute "no-frame-pointer-elim"="false" to "frame-pointer"="none" as cleanups after D56351 2019-12-24 16:27:51 -08:00
indirectbr.ll [WebAssembly] Enable IndirectBrExpandPass 2019-07-03 23:54:06 +00:00
inline-asm-m.ll
…
inline-asm-roundtrip.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
inline-asm.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
inlineasm-output-template.ll [AsmPrinter] refactor to support %c w/ GlobalAddress' 2019-04-26 18:45:04 +00:00
irreducible-cfg-exceptions.ll [WebAssembly] Improve readability of irreducibility tests 2019-03-19 05:10:39 +00:00
irreducible-cfg.ll [WebAssembly] Optimize the number of routing blocks in FixIrreducibleCFG 2019-03-30 01:31:11 +00:00
irreducible-cfg.mir [WebAssembly] Optimize the number of routing blocks in FixIrreducibleCFG 2019-03-30 01:31:11 +00:00
legalize.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
libcalls.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
lit.local.cfg
…
llround-conv-i32.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
load-ext-atomic.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
load-ext.ll
…
load-store-i1.ll
…
load-store-pic.ll [WebAssembly] Limit PIC support to the Emscripten target 2019-06-05 20:01:01 +00:00
load.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
lower-em-ehsjlj-options.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
lower-em-exceptions-resume-only.ll [WebAssembly] Fix resume-only case in Emscripten EH 2020-01-23 18:13:52 -08:00
lower-em-exceptions-whitelist.ll [WebAssembly] Fix conflict between ret legalization and sjlj 2019-08-05 21:36:09 +00:00
lower-em-exceptions.ll [WebAssembly] Fix conflict between ret legalization and sjlj 2019-08-05 21:36:09 +00:00
lower-em-sjlj-alias.ll [WebAssembly] Compare functions by names in Emscripten Sjlj 2019-09-03 22:26:49 +00:00
lower-em-sjlj-debuginfo.ll [WebAssembly] Use dummy debug info in Emscripten SjLj 2020-04-09 18:44:50 -07:00
lower-em-sjlj-sret.ll [WebAssembly] Combine emscripten SjLj tests 2019-08-26 21:41:17 +00:00
lower-em-sjlj.ll [WebAssembly] Use dummy debug info in Emscripten SjLj 2020-04-09 18:44:50 -07:00
lower-global-dtors.ll [WebAssembly] Fix the order of destructors in the LowerGlobalDtors pass. 2020-03-26 16:19:02 -07:00
main-declaration.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
main-no-args.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
main-three-args.ll [WebAssembly] Re-enable main-function signature rewriting 2019-01-29 10:53:42 +00:00
main-with-args.ll [WebAssembly] Re-enable main-function signature rewriting 2019-01-29 10:53:42 +00:00
mem-intrinsics.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
memory-addr32.ll [WebAssembly] Remove tests for old intrinsics. 2019-01-14 18:25:29 +00:00
muloti4.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
multi-return.ll [WebAssembly] Track frame registers through VReg and local allocation 2020-01-17 17:23:56 -08:00
multivalue-stackify.ll [WebAssembly] Fix RegStackify and ExplicitLocals to handle multivalue 2020-02-18 14:56:09 -08:00
multivalue-stackify.py [WebAssembly] Fix RegStackify and ExplicitLocals to handle multivalue 2020-02-18 14:56:09 -08:00
multivalue.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
mutable-globals.ll [WebAssembly] Add mutable globals feature 2019-03-29 22:00:18 +00:00
negative-base-reg.ll Migrate function attribute "no-frame-pointer-elim"="false" to "frame-pointer"="none" as cleanups after D56351 2019-12-24 16:27:51 -08:00
null-streamer.ll [WebAssembly] Add null streamer support 2018-11-18 11:58:47 +00:00
offset-atomics.ll Revert "Revert "Reland "[Support] make report_fatal_error `abort` instead of `exit`""" 2020-02-13 10:16:06 -08:00
offset-fastisel.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
offset-folding.ll [WebAssembly] replaced .param/.result by .functype 2018-11-19 17:10:36 +00:00
offset.ll [SelectionDAGBuilder] Stop setting alignment to one for hidden sret values 2020-05-04 14:44:39 +01:00
phi.ll [WebAssembly] Make LBB markers not affected by test order 2019-04-23 21:17:03 +00:00
reference-types.ll [WebAssembly] Add reference types target feature 2020-01-24 14:26:27 -08:00
reg-argument.mir [WebAssembly] Make returns variadic 2019-10-09 21:42:08 +00:00
reg-copy.mir [WebAssembly] Make returns variadic 2019-10-09 21:42:08 +00:00
reg-stackify.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
return-address-emscripten.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
return-address-unknown.ll [WebAssembly] Implement __builtin_return_address for emscripten 2019-05-23 01:24:01 +00:00
return-int32.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
return-void.ll [WebAssembly] replaced .param/.result by .functype 2018-11-19 17:10:36 +00:00
returned.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
select.ll [WebAssembly] Fix miscompile of select with and 2019-11-15 16:22:01 -08:00
signext-arg.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
signext-inreg.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
signext-zeroext.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
simd-arith.ll [WebAssembly] Update latest implemented SIMD instructions 2020-05-15 10:53:02 -07:00
simd-bitcasts.ll [WebAssembly] Enable recently implemented SIMD operations 2020-02-04 18:36:32 -08:00
simd-build-pair.ll [WebAssembly] Enable recently implemented SIMD operations 2020-02-04 18:36:32 -08:00
simd-build-vector.ll [WebAssembly] Update latest implemented SIMD instructions 2020-05-15 10:53:02 -07:00
simd-comparisons.ll [WebAssembly] Enable recently implemented SIMD operations 2020-02-04 18:36:32 -08:00
simd-conversions.ll [WebAssembly] Renumber SIMD opcodes 2020-05-01 17:20:49 -07:00
simd-extended-extract.ll [WebAssembly] Enable recently implemented SIMD operations 2020-02-04 18:36:32 -08:00
simd-illegal-signext.ll [WebAssembly] Implement ReplaceNodeResults to fix a SIMD crash 2019-05-23 18:09:26 +00:00
simd-intrinsics.ll [WebAssembly] Implement pseudo-min/max SIMD instructions 2020-05-12 09:39:01 -07:00
simd-load-splat.ll Reland "[WebAssembly] Handle multiple loads of splatted loads" 2019-10-31 20:02:24 -07:00
simd-load-store-alignment.ll [WebAssembly] Add unimplemented-simd128 subtarget feature 2019-01-10 22:32:11 +00:00
simd-nested-shuffles.ll [WebAssembly] Fix invalid machine instrs in -O0, verify in tests 2018-12-21 06:58:15 +00:00
simd-noopt.ll [WebAssembly][NFC] Elaborate on simd-noopt test comment 2019-01-02 20:43:08 +00:00
simd-offset.ll [WebAssembly] Update latest implemented SIMD instructions 2020-05-15 10:53:02 -07:00
simd-reductions.ll [WebAssembly] Optimize ISel for SIMD Boolean reductions 2019-06-19 00:02:13 +00:00
simd-scalar-to-vector.ll [WebAssembly] Enable recently implemented SIMD operations 2020-02-04 18:36:32 -08:00
simd-select.ll [WebAssembly] Fix select of and (PR40805) 2019-02-23 18:59:01 +00:00
simd-sext-inreg.ll [WebAssembly] Simplify extract_vector lowering 2020-02-25 13:54:48 -08:00
simd-shift-unroll.ll [WebAssembly] Fix SIMD shift unrolling to avoid assertion failure 2020-03-12 12:20:14 -07:00
simd-shuffle-bitcast.ll [WebAssembly] Optimize splats of bitcasted vectors 2020-05-15 12:12:20 -07:00
simd-unsupported.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
simd.ll [WebAssembly] Simplify extract_vector lowering 2020-02-25 13:54:48 -08:00
stack-alignment.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
stack-insts.ll [WebAssembly] Fix assembler parsing of br_table. 2018-12-17 22:04:44 +00:00
stack-protector.ll Use SETNE directly rather than SUB/SETNE 0 for stack guard check 2020-02-18 13:21:26 +00:00
stackified-debug.ll [WebAssembly] Added Debug Fixup pass 2020-05-14 13:14:45 -07:00
store-trunc-atomic.ll
…
store-trunc.ll
…
store.ll [WebAssembly] Massive instruction renaming 2019-01-08 06:25:55 +00:00
swiftcc.ll [WebAssembly] Support swiftself and swifterror for WebAssembly target 2020-03-19 17:39:52 -07:00
switch.ll [WebAssembly] Make LBB markers not affected by test order 2019-04-23 21:17:03 +00:00
tailcall.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
target-features-tls.ll [WebAssembly] Disallow 'shared-mem' rather than 'atomics' 2020-05-08 13:52:39 -07:00
target-features.ll [WebAssembly] Update bleeding-edge CPU features 2020-01-24 14:27:35 -08:00
tls-general-dynamic.ll Revert "Revert "Reland "[Support] make report_fatal_error `abort` instead of `exit`""" 2020-02-13 10:16:06 -08:00
tls-local-exec.ll [WebAssembly] Compile all TLS on Emscripten as local-exec 2019-07-16 22:22:08 +00:00
umulo-128-legalisation-lowering.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
umulo-i64.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
unreachable.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
unsupported-function-bitcasts.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
unused-argument.ll [WebAssembly] Replace all calls with generalized multivalue calls 2020-02-18 15:55:20 -08:00
userstack.ll [WebAssembly] Update CodeGen test expectations after rL354697. NFC 2019-02-23 00:07:39 +00:00
varargs.ll [WebAssembly] Properly align fp128 arguments in outgoing varargs arguments 2019-02-26 05:20:19 +00:00
vector-sdiv.ll
…
vtable.ll [WebAssembly] Remove uses of ThreadModel 2019-02-28 18:39:08 +00:00
wasmehprepare.ll [WebAssembly] Fix wasm.lsda() optimization in WasmEHPrepare 2020-04-04 07:02:50 -07:00