llvm-project/llvm/test/CodeGen/Thumb2
David Green 743abf2bd9 [ARM] Ensure we update the correct flags in the peephole optimiser
The Arm peephole optimiser code keeps track of both an MI and a SubAdd that can
be used to optimise away a CMP. In the rare case that both are found and not
ruled-out as valid, we could end up setting the flags on the wrong one.

Instead make sure we are using SubAdd if it exists, as it will be closer to the
CMP.

The testcase here is a little theoretical, with a dead def of cpsr. It should
hopefully show the point.

Differential Revision: https://reviews.llvm.org/D58176

llvm-svn: 354018
2019-02-14 11:09:24 +00:00
..
2009-07-17-CrossRegClassCopy.ll
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
2009-07-30-PEICrash.ll Replace "no-frame-pointer-*" function attributes with "frame-pointer" 2019-01-14 10:55:55 +00:00
2009-08-01-WrongLDRBOpc.ll Replace "no-frame-pointer-*" function attributes with "frame-pointer" 2019-01-14 10:55:55 +00:00
2009-08-02-CoalescerBug.ll Replace "no-frame-pointer-*" function attributes with "frame-pointer" 2019-01-14 10:55:55 +00:00
2009-08-04-CoalescerAssert.ll
2009-08-04-CoalescerBug.ll Replace "no-frame-pointer-*" function attributes with "frame-pointer" 2019-01-14 10:55:55 +00:00
2009-08-04-ScavengerAssert.ll Replace "no-frame-pointer-*" function attributes with "frame-pointer" 2019-01-14 10:55:55 +00:00
2009-08-04-SubregLoweringBug.ll Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1) 2018-01-19 17:13:12 +00:00
2009-08-04-SubregLoweringBug2.ll
2009-08-04-SubregLoweringBug3.ll
2009-08-06-SpDecBug.ll
2009-08-07-CoalescerBug.ll
2009-08-07-NeonFPBug.ll
2009-08-08-ScavengerAssert.ll
2009-08-10-ISelBug.ll
2009-08-21-PostRAKill4.ll Replace "no-frame-pointer-*" function attributes with "frame-pointer" 2019-01-14 10:55:55 +00:00
2009-09-01-PostRAProlog.ll Replace "no-frame-pointer-*" function attributes with "frame-pointer" 2019-01-14 10:55:55 +00:00
2009-10-15-ITBlockBranch.ll
2009-11-01-CopyReg2RegBug.ll Replace "no-frame-pointer-*" function attributes with "frame-pointer" 2019-01-14 10:55:55 +00:00
2009-11-11-ScavengerAssert.ll
2009-11-13-STRDBug.ll
2009-12-01-LoopIVUsers.ll
2010-01-06-TailDuplicateLabels.ll Work around grep vs. CRLF issue in Thumb2 test by matching excess whitespace 2018-09-18 00:04:29 +00:00
2010-01-19-RemovePredicates.ll
2010-02-11-phi-cycle.ll
2010-02-24-BigStack.ll Replace "no-frame-pointer-*" function attributes with "frame-pointer" 2019-01-14 10:55:55 +00:00
2010-03-08-addi12-ccout.ll
2010-03-15-AsmCCClobber.ll ARM: convert ORR instructions to ADD where possible on Thumb. 2018-06-20 12:09:44 +00:00
2010-04-15-DynAllocBug.ll
2010-04-26-CopyRegCrash.ll
2010-05-24-rsbs.ll
2010-06-14-NEONCoalescer.ll [CodeGen] Don't print "pred:" and "opt:" in -debug output 2018-01-09 17:31:07 +00:00
2010-06-19-ITBlockCrash.ll Replace "no-frame-pointer-*" function attributes with "frame-pointer" 2019-01-14 10:55:55 +00:00
2010-06-21-TailMergeBug.ll
2010-08-10-VarSizedAllocaBug.ll
2010-11-22-EpilogueBug.ll Generalize MergeBlockIntoPredecessor. Replace uses of MergeBasicBlockIntoOnlyPred. 2018-06-20 22:01:04 +00:00
2010-12-03-AddSPNarrowing.ll
2011-04-21-FILoweringBug.ll
2011-06-07-TwoAddrEarlyClobber.ll
2011-12-16-T2SizeReduceAssert.ll Replace "no-frame-pointer-*" function attributes with "frame-pointer" 2019-01-14 10:55:55 +00:00
2012-01-13-CBNZBug.ll Replace "no-frame-pointer-*" function attributes with "frame-pointer" 2019-01-14 10:55:55 +00:00
2013-02-19-tail-call-register-hint.ll
2013-03-02-vduplane-nonconstant-source-index.ll
2013-03-06-vector-sext-operand-scalarize.ll
aapcs.ll [ARM] Return true in enableMultipleCopyHints(). 2018-02-16 09:51:01 +00:00
aligned-constants.ll
aligned-spill.ll [ARM] Generate consistent frame records for Thumb2 2016-08-23 09:19:22 +00:00
bfi.ll
bfx.ll
bicbfi.ll [CodeGen] Always use `printReg` to print registers in both MIR and debug 2017-11-30 16:12:24 +00:00
buildvector-crash.ll
carry.ll
cbnz.ll CodeGen: Allow small copyable blocks to "break" the CFG. 2017-01-31 23:48:32 +00:00
cmp-frame.ll ARM: Don't rewrite add reg, $sp, 0 -> mov reg, $sp if the add defines CPSR. 2018-02-27 19:00:59 +00:00
constant-islands-jump-table.ll
constant-islands-new-island-padding.ll
constant-islands-new-island.ll [ARM] Make -mcpu=generic schedule for an in-order core (Cortex-A8). 2017-06-28 07:07:03 +00:00
constant-islands.ll ARM: Do not use llc -march in tests. 2017-08-01 22:20:49 +00:00
cortex-fp.ll ARM: Do not use llc -march in tests. 2017-08-01 22:20:49 +00:00
crash.ll
cross-rc-coalescing-1.ll
cross-rc-coalescing-2.ll [Thumb2] fix typo in test from r332548 2018-05-17 03:24:25 +00:00
div.ll
emit-unwinding.ll
float-cmp.ll [ARM] Materialise some boolean values to avoid a branch 2018-02-16 09:23:59 +00:00
float-intrinsics-double.ll ARM: match GCC's behaviour for builtins 2017-01-13 16:25:33 +00:00
float-intrinsics-float.ll [ARM] Do not fuse VADD and VMUL on the Cortex-M4 and Cortex-M33 2018-09-24 12:02:50 +00:00
float-ops.ll [Thumb] Teach ISel how to lower compares of AND bitmasks efficiently 2016-12-15 09:38:59 +00:00
frame-pointer.ll Re-land "[Thumb] Save/restore high registers in Thumb1 pro/epilogues" 2016-10-11 21:14:03 +00:00
frameless.ll Replace "no-frame-pointer-*" function attributes with "frame-pointer" 2019-01-14 10:55:55 +00:00
frameless2.ll Replace "no-frame-pointer-*" function attributes with "frame-pointer" 2019-01-14 10:55:55 +00:00
high-reg-spill.mir [ARM] Enable spilling of the hGPR register class in Thumb2 2018-11-08 13:02:10 +00:00
ifcvt-compare.ll CodeGen: Allow small copyable blocks to "break" the CFG. 2017-01-31 23:48:32 +00:00
ifcvt-neon-deprecated.mir Followup on Proposal to move MIR physical register namespace to '$' sigil. 2018-01-31 22:04:26 +00:00
ifcvt-no-branch-predictor.ll [CodeGen] Add a new pass for PostRA sink 2018-03-22 20:06:47 +00:00
ifcvt-rescan-bug-2016-08-22.ll [CodeGen] Unify MBB reference format in both MIR and debug output 2017-12-04 17:18:51 +00:00
ifcvt-rescan-diamonds.ll IfConversion: Fix bug introduced by rescanning diamonds. 2016-09-02 18:29:26 +00:00
inflate-regs.ll
inlineasm.ll
intrinsics-cc.ll [ARM] Honor -mfloat-abi for libcall calling convention 2017-10-26 21:42:32 +00:00
intrinsics-coprocessor.ll ARM: Do not use llc -march in tests. 2017-08-01 22:20:49 +00:00
large-call.ll
large-stack.ll ARM: Do not use llc -march in tests. 2017-08-01 22:20:49 +00:00
ldr-str-imm12.ll Replace "no-frame-pointer-*" function attributes with "frame-pointer" 2019-01-14 10:55:55 +00:00
lit.local.cfg
longMACt.ll
lsr-deficiency.ll [Thumb] Select (CMPZ X, -C) -> (CMPZ (ADDS X, C), 0) 2016-09-09 12:52:24 +00:00
machine-licm.ll Replace "no-frame-pointer-*" function attributes with "frame-pointer" 2019-01-14 10:55:55 +00:00
mul_const.ll
peephole-addsub.mir [ARM] Ensure we update the correct flags in the peephole optimiser 2019-02-14 11:09:24 +00:00
pic-load.ll
segmented-stacks.ll ARM: Do not use llc -march in tests. 2017-08-01 22:20:49 +00:00
setjmp_longjmp.ll
stack_guard_remat.ll Add address space mangling to lifetime intrinsics 2017-04-10 20:18:21 +00:00
t2-teq-reduce.mir [ARM] Size reduce teq to eors 2019-01-10 08:36:33 +00:00
t2sizereduction.mir Followup on Proposal to move MIR physical register namespace to '$' sigil. 2018-01-31 22:04:26 +00:00
tail-call-r9.ll
tbb-removeadd.mir Followup on Proposal to move MIR physical register namespace to '$' sigil. 2018-01-31 22:04:26 +00:00
thumb2-adc.ll
thumb2-add.ll
thumb2-add2.ll
thumb2-add3.ll
thumb2-add4.ll
thumb2-add5.ll
thumb2-add6.ll
thumb2-and.ll
thumb2-and2.ll
thumb2-asr.ll
thumb2-asr2.ll
thumb2-bcc.ll
thumb2-bfc.ll
thumb2-bic.ll
thumb2-branch.ll
thumb2-call-tc.ll
thumb2-call.ll
thumb2-cbnz.ll Codegen: Fix broken assumption in Tail Merge. 2016-06-24 18:16:36 +00:00
thumb2-clz.ll
thumb2-cmn.ll [ARM] Materialise some boolean values to avoid a branch 2018-02-16 09:23:59 +00:00
thumb2-cmn2.ll [ARM] Materialise some boolean values to avoid a branch 2018-02-16 09:23:59 +00:00
thumb2-cmp.ll [ARM] Treat cmn immediates as legal in isLegalICmpImmediate. 2018-07-10 23:44:37 +00:00
thumb2-cpsr-liveness.ll
thumb2-eor.ll
thumb2-eor2.ll
thumb2-ifcvt1-tc.ll
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 MachO: trap unreachable instructions 2018-04-13 22:25:20 +00:00
thumb2-ifcvt3.ll
thumb2-jtb.ll Generalize MergeBlockIntoPredecessor. Replace uses of MergeBasicBlockIntoOnlyPred. 2018-06-20 22:01:04 +00:00
thumb2-ldm.ll [ARM] Generate consistent frame records for Thumb2 2016-08-23 09:19:22 +00:00
thumb2-ldr.ll
thumb2-ldr_ext.ll
thumb2-ldr_post.ll
thumb2-ldr_pre.ll
thumb2-ldrb.ll
thumb2-ldrd.ll
thumb2-ldrh.ll
thumb2-lsl.ll
thumb2-lsl2.ll
thumb2-lsr.ll
thumb2-lsr2.ll
thumb2-lsr3.ll
thumb2-mla.ll
thumb2-mls.ll
thumb2-mov.ll
thumb2-mul.ll
thumb2-mulhi.ll
thumb2-mvn.ll
thumb2-mvn2.ll
thumb2-neg.ll
thumb2-orn.ll
thumb2-orn2.ll
thumb2-orr.ll
thumb2-orr2.ll
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 ARM: Do not use llc -march in tests. 2017-08-01 22:20:49 +00:00
thumb2-ror.ll
thumb2-rsb.ll
thumb2-rsb2.ll
thumb2-sbc.ll
thumb2-select.ll
thumb2-select_xform.ll [ARM] Return true in enableMultipleCopyHints(). 2018-02-16 09:51:01 +00:00
thumb2-shifter.ll
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 [Thumb] preserve test intent by removing undef 2018-05-16 22:47:42 +00:00
thumb2-str.ll
thumb2-str_post.ll
thumb2-str_pre.ll
thumb2-strb.ll
thumb2-strh.ll
thumb2-sub.ll
thumb2-sub2.ll
thumb2-sub3.ll
thumb2-sub4.ll
thumb2-sub5.ll
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 [ARM] Make InstrEmitter mark CPSR defs dead for Thumb1. 2018-10-26 19:32:24 +00:00
thumb2-teq.ll [ARM] Materialise some boolean values to avoid a branch 2018-02-16 09:23:59 +00:00
thumb2-teq2.ll [ARM] Size reduce teq to eors 2019-01-10 08:36:33 +00:00
thumb2-tst.ll [ARM] Materialise some boolean values to avoid a branch 2018-02-16 09:23:59 +00:00
thumb2-tst2.ll [ARM] Materialise some boolean values to avoid a branch 2018-02-16 09:23:59 +00:00
thumb2-uxt_rot.ll [ARM] Replace HasT2ExtractPack with HasDSP 2017-02-17 15:42:44 +00:00
thumb2-uxtb.ll ARM: convert ORR instructions to ADD where possible on Thumb. 2018-06-20 12:09:44 +00:00
tls1.ll
tls2.ll Don't print (PLT) on arm. 2016-06-16 16:09:53 +00:00
tpsoft.ll
umulo-64-legalisation-lowering.ll [SchedModel] Fix for read advance cycles with implicit pseudo operands. 2018-10-30 15:04:40 +00:00
umulo-128-legalisation-lowering.ll [SchedModel] Fix for read advance cycles with implicit pseudo operands. 2018-10-30 15:04:40 +00:00
unreachable-large-offset-gep.ll CGP: Clear data structures at the end of a loop iteration instead of the beginning. 2018-10-23 21:23:18 +00:00
v8_IT_1.ll
v8_IT_2.ll
v8_IT_3.ll [arm] Fix Unnecessary reloads from GOT. 2017-11-13 20:45:38 +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 [Dominators] Include infinite loops in PostDominatorTree 2017-08-15 18:14:57 +00:00
v8_IT_6.ll