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llvm-project/llvm/test/CodeGen/Thumb2
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Nirav Dave da8f221273 Elide stores which are overwritten without being observed. 
Summary:
In SelectionDAG, when a store is immediately chained to another store
to the same address, elide the first store as it has no observable
effects. This is causes small improvements dealing with intrinsics
lowered to stores.

Test notes:

* Many testcases overwrite store addresses multiple times and needed
  minor changes, mainly making stores volatile to prevent the
  optimization from optimizing the test away.

* Many X86 test cases optimized out instructions associated with
  associated with va_start.

* Note that test_splat in CodeGen/AArch64/misched-stp.ll no longer has
  dependencies to check and can probably be removed and potentially
  replaced with another test.

Reviewers: rnk, john.brawn

Subscribers: aemerson, rengolin, qcolombet, jyknight, nemanjai, nhaehnle, javed.absar, llvm-commits

Differential Revision: https://reviews.llvm.org/D33206

llvm-svn: 303198
 		2017-05-16 19:43:56 +00:00
..
2009-07-17-CrossRegClassCopy.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2009-07-21-ISelBug.ll [ARM] Generate consistent frame records for Thumb2 2016-08-23 09:19:22 +00:00
2009-07-23-CPIslandBug.ll
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2009-07-30-PEICrash.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2009-08-01-WrongLDRBOpc.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2009-08-02-CoalescerBug.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2009-08-04-CoalescerAssert.ll [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
2009-08-04-CoalescerBug.ll [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
2009-08-04-ScavengerAssert.ll [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
2009-08-04-SubregLoweringBug.ll Revert "Change memcpy/memset/memmove to have dest and source alignments." 2015-11-19 05:56:52 +00:00
2009-08-04-SubregLoweringBug2.ll
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2009-08-04-SubregLoweringBug3.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2009-08-06-SpDecBug.ll ARM: When spilling extra registers for alignment, prefer low registers on all Thumb targets. 2015-04-23 20:31:26 +00:00
2009-08-07-CoalescerBug.ll
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2009-08-07-NeonFPBug.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2009-08-08-ScavengerAssert.ll
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2009-08-10-ISelBug.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2009-08-21-PostRAKill4.ll [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
2009-09-01-PostRAProlog.ll Fix an old memset signature in 2009-09-01-PostRAProlog.ll test causing a buildbot failure 2016-06-23 16:07:10 +00:00
2009-09-28-ITBlockBug.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2009-10-15-ITBlockBranch.ll
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2009-11-01-CopyReg2RegBug.ll
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2009-11-11-ScavengerAssert.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2009-11-13-STRDBug.ll
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2009-12-01-LoopIVUsers.ll [SCEV] Try to reuse existing value during SCEV expansion 2016-02-04 01:27:38 +00:00
2010-01-06-TailDuplicateLabels.ll [opaque pointer type] Add textual IR support for explicit type parameter to gep operator 2015-03-13 18:20:45 +00:00
2010-01-19-RemovePredicates.ll [opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction 2015-02-27 19:29:02 +00:00
2010-02-11-phi-cycle.ll ARM: stop emitting blx instructions for most calls on MachO. 2016-05-10 19:17:47 +00:00
2010-02-24-BigStack.ll
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2010-03-08-addi12-ccout.ll [opaque pointer type] Add textual IR support for explicit type parameter to gep operator 2015-03-13 18:20:45 +00:00
2010-03-15-AsmCCClobber.ll ARM: stop emitting blx instructions for most calls on MachO. 2016-05-10 19:17:47 +00:00
2010-04-15-DynAllocBug.ll
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2010-04-26-CopyRegCrash.ll
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2010-05-24-rsbs.ll
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2010-06-14-NEONCoalescer.ll [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
2010-06-19-ITBlockCrash.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2010-06-21-TailMergeBug.ll [opaque pointer type] Add textual IR support for explicit type parameter to gep operator 2015-03-13 18:20:45 +00:00
2010-08-10-VarSizedAllocaBug.ll [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
2010-11-22-EpilogueBug.ll [ARM] Generate consistent frame records for Thumb2 2016-08-23 09:19:22 +00:00
2010-12-03-AddSPNarrowing.ll
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2011-04-21-FILoweringBug.ll
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2011-06-07-TwoAddrEarlyClobber.ll Thumb2: When optimizing for size, do not if-convert branches involving comparisons with zero. 2015-04-23 20:31:30 +00:00
2011-12-16-T2SizeReduceAssert.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2012-01-13-CBNZBug.ll Revert "Change memcpy/memset/memmove to have dest and source alignments." 2015-11-19 05:56:52 +00:00
2013-02-19-tail-call-register-hint.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2013-03-02-vduplane-nonconstant-source-index.ll Fix a nasty bug in DAGCombine of STORE nodes. 2015-03-19 22:48:57 +00:00
2013-03-06-vector-sext-operand-scalarize.ll
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aapcs.ll ARMLoadStoreOptimizer: Create LDRD/STRD on thumb2 2015-07-21 00:18:59 +00:00
aligned-constants.ll [MC] Use .p2align instead of .align 2016-01-26 00:03:25 +00:00
aligned-spill.ll [ARM] Generate consistent frame records for Thumb2 2016-08-23 09:19:22 +00:00
bfi.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
bfx.ll
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bicbfi.ll [Thumb] Reapply r272251 with a fix for PR28348 (mk 2) 2016-07-05 12:37:13 +00:00
buildvector-crash.ll
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carry.ll Address buildbot fallout from r259065 2016-01-28 18:59:04 +00:00
cbnz.ll CodeGen: Allow small copyable blocks to "break" the CFG. 2017-01-31 23:48:32 +00:00
constant-islands-jump-table.ll ARM: recommit r237590: allow jump tables to be placed as constant islands. 2015-05-31 19:22:07 +00:00
constant-islands-new-island-padding.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
constant-islands-new-island.ll ARM: allow constpool entry to be moved to the user's block in all cases. 2014-11-13 17:58:53 +00:00
constant-islands.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
cortex-fp.ll [ARM] Add support for Cortex-M7, FPv5-SP and FPv5-DP (LLVM) 2014-10-01 09:02:17 +00:00
crash.ll [ARM][NEON] Use address space in vld([1234]|[234]lane) and vst([1234]|[234]lane) instructions 2015-09-30 10:56:37 +00:00
cross-rc-coalescing-1.ll
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cross-rc-coalescing-2.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
div.ll [ARM] support for Cortex-R4/R4F 2015-04-09 14:07:28 +00:00
emit-unwinding.ll ARM: use r7 as the frame-pointer on all MachO targets. 2016-04-11 22:27:40 +00:00
float-cmp.ll [ARM] Use VCMP, not VCMPE, for floating point equality comparisons 2017-02-13 12:32:47 +00:00
float-intrinsics-double.ll ARM: match GCC's behaviour for builtins 2017-01-13 16:25:33 +00:00
float-intrinsics-float.ll ARM: match GCC's behaviour for builtins 2017-01-13 16:25:33 +00:00
float-ops.ll [Thumb] Teach ISel how to lower compares of AND bitmasks efficiently 2016-12-15 09:38:59 +00:00
frame-pointer.ll Re-land "[Thumb] Save/restore high registers in Thumb1 pro/epilogues" 2016-10-11 21:14:03 +00:00
frameless.ll
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frameless2.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
ifcvt-compare.ll CodeGen: Allow small copyable blocks to "break" the CFG. 2017-01-31 23:48:32 +00:00
ifcvt-neon.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
ifcvt-rescan-bug-2016-08-22.ll Add address space mangling to lifetime intrinsics 2017-04-10 20:18:21 +00:00
ifcvt-rescan-diamonds.ll IfConversion: Fix bug introduced by rescanning diamonds. 2016-09-02 18:29:26 +00:00
inflate-regs.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
inlineasm.ll
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intrinsics-cc.ll ARM: match GCC's behaviour for builtins 2017-01-13 16:25:33 +00:00
intrinsics-coprocessor.ll [ARM] Avoid using ARM instructions in Thumb mode 2017-01-31 14:35:01 +00:00
large-call.ll [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
large-stack.ll ARM: When spilling extra registers for alignment, prefer low registers on all Thumb targets. 2015-04-23 20:31:26 +00:00
ldr-str-imm12.ll Elide stores which are overwritten without being observed. 2017-05-16 19:43:56 +00:00
lit.local.cfg
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longMACt.ll
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lsr-deficiency.ll [Thumb] Select (CMPZ X, -C) -> (CMPZ (ADDS X, C), 0) 2016-09-09 12:52:24 +00:00
machine-licm.ll Make the canonicalisation on shifts benifit to more case. 2016-12-23 02:56:07 +00:00
mul_const.ll
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pic-load.ll ARM: Add scheduling information for LDRLIT instructions to swift scheduling model 2015-07-17 23:18:26 +00:00
segmented-stacks.ll
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setjmp_longjmp.ll Arm: Don't define a label twice with two setjmps in a function. 2015-07-16 22:34:20 +00:00
stack_guard_remat.ll Add address space mangling to lifetime intrinsics 2017-04-10 20:18:21 +00:00
tail-call-r9.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
tbb-removeadd.mir [ARM] Remove a dead ADD during the creation of TBBs 2017-04-06 08:32:47 +00:00
thumb2-adc.ll
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thumb2-add.ll
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thumb2-add2.ll
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thumb2-add3.ll
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thumb2-add4.ll
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thumb2-add5.ll
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thumb2-add6.ll
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thumb2-and.ll
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thumb2-and2.ll
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thumb2-asr.ll
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thumb2-asr2.ll
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thumb2-bcc.ll
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thumb2-bfc.ll
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thumb2-bic.ll
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thumb2-branch.ll
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thumb2-call-tc.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
thumb2-call.ll ARM: stop emitting blx instructions for most calls on MachO. 2016-05-10 19:17:47 +00:00
thumb2-cbnz.ll Codegen: Fix broken assumption in Tail Merge. 2016-06-24 18:16:36 +00:00
thumb2-clz.ll
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thumb2-cmn.ll IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
thumb2-cmn2.ll [Thumb] Select (CMPZ X, -C) -> (CMPZ (ADDS X, C), 0) 2016-09-09 12:52:24 +00:00
thumb2-cmp.ll
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thumb2-cmp2.ll
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thumb2-cpsr-liveness.ll Fix PR26655: Bail out if all regs of an inst BUNDLE have the correct kill flag 2016-05-10 17:57:27 +00:00
thumb2-eor.ll
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thumb2-eor2.ll
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thumb2-ifcvt1-tc.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
thumb2-ifcvt1.ll CodeGen: If Convert blocks that would form a diamond when tail-merged. 2016-08-24 21:34:27 +00:00
thumb2-ifcvt2.ll [ARM] Enable shrink-wrapping by default. 2015-11-18 00:40:54 +00:00
thumb2-ifcvt3.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
thumb2-jtb.ll [Thumb-1] Synthesize TBB/TBH instructions to make use of compressed jump tables 2016-11-01 13:37:41 +00:00
thumb2-ldm.ll [ARM] Generate consistent frame records for Thumb2 2016-08-23 09:19:22 +00:00
thumb2-ldr.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
thumb2-ldr_ext.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
thumb2-ldr_post.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
thumb2-ldr_pre.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
thumb2-ldrb.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
thumb2-ldrd.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
thumb2-ldrh.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
thumb2-lsl.ll
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thumb2-lsl2.ll
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thumb2-lsr.ll
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thumb2-lsr2.ll
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thumb2-lsr3.ll
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thumb2-mla.ll
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thumb2-mls.ll
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thumb2-mov.ll
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thumb2-mul.ll
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thumb2-mulhi.ll [ARM] Renaming +t2dsp feature into +dsp, as discussed on llvm-dev 2015-10-23 17:19:19 +00:00
thumb2-mvn.ll
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thumb2-mvn2.ll
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thumb2-neg.ll
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thumb2-orn.ll
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thumb2-orn2.ll
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thumb2-orr.ll
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thumb2-orr2.ll
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thumb2-pack.ll [ARM] Remove t2xtpk feature from tests 2017-03-09 15:14:32 +00:00
thumb2-rev.ll [ARM] Remove t2xtpk feature from tests 2017-03-09 15:14:32 +00:00
thumb2-rev16.ll
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thumb2-ror.ll
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thumb2-rsb.ll
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thumb2-rsb2.ll
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thumb2-sbc.ll
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thumb2-select.ll
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thumb2-select_xform.ll
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thumb2-shifter.ll
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thumb2-smla.ll [ARM] Remove t2xtpk feature from tests 2017-03-09 15:14:32 +00:00
thumb2-smul.ll [ARM] Remove t2xtpk feature from tests 2017-03-09 15:14:32 +00:00
thumb2-spill-q.ll [ARM][NEON] Use address space in vld([1234]|[234]lane) and vst([1234]|[234]lane) instructions 2015-09-30 10:56:37 +00:00
thumb2-str.ll [opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction 2015-02-27 19:29:02 +00:00
thumb2-str_post.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
thumb2-str_pre.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
thumb2-strb.ll [opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction 2015-02-27 19:29:02 +00:00
thumb2-strh.ll [opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction 2015-02-27 19:29:02 +00:00
thumb2-sub.ll
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thumb2-sub2.ll
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thumb2-sub3.ll
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thumb2-sub4.ll
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thumb2-sub5.ll
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thumb2-sxt-uxt.ll [ARM] Replace HasT2ExtractPack with HasDSP 2017-02-17 15:42:44 +00:00
thumb2-sxt_rot.ll [ARM] Replace HasT2ExtractPack with HasDSP 2017-02-17 15:42:44 +00:00
thumb2-tbb.ll [Thumb-1] Synthesize TBB/TBH instructions to make use of compressed jump tables 2016-11-01 13:37:41 +00:00
thumb2-tbh.ll [Thumb-1] Synthesize TBB/TBH instructions to make use of compressed jump tables 2016-11-01 13:37:41 +00:00
thumb2-teq.ll
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thumb2-teq2.ll
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thumb2-tst.ll
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thumb2-tst2.ll
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thumb2-uxt_rot.ll [ARM] Replace HasT2ExtractPack with HasDSP 2017-02-17 15:42:44 +00:00
thumb2-uxtb.ll [ARM] Replace HasT2ExtractPack with HasDSP 2017-02-17 15:42:44 +00:00
tls1.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
tls2.ll Don't print (PLT) on arm. 2016-06-16 16:09:53 +00:00
tpsoft.ll ARM: When spilling extra registers for alignment, prefer low registers on all Thumb targets. 2015-04-23 20:31:26 +00:00
v8_IT_1.ll [ARM][NEON] Use address space in vld([1234]|[234]lane) and vst([1234]|[234]lane) instructions 2015-09-30 10:56:37 +00:00
v8_IT_2.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
v8_IT_3.ll Distribute the weight on the edge from switch to default statement to edges generated in lowering switch. 2015-09-01 01:42:16 +00:00
v8_IT_4.ll CodeGen: Allow small copyable blocks to "break" the CFG. 2017-01-31 23:48:32 +00:00
v8_IT_5.ll [ShrinkWrapping] Handle restores on no-return paths 2017-05-15 23:13:35 +00:00
v8_IT_6.ll
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