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llvm/test/CodeGen/Thumb2
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Tim Northover d0dbe02fd2 ARM & AArch64: make use of common cmpxchg idioms after expansion 
The C and C++ semantics for compare_exchange require it to return a bool
indicating success. This gets mapped to LLVM IR which follows each cmpxchg with
an icmp of the value loaded against the desired value.

When lowered to ldxr/stxr loops, this extra comparison is redundant: its
results are implicit in the control-flow of the function.

This commit makes two changes: it replaces that icmp with appropriate PHI
nodes, and then makes sure earlyCSE is called after expansion to actually make
use of the opportunities revealed.

I've also added -{arm,aarch64}-enable-atomic-tidy options, so that
existing fragile tests aren't perturbed too much by the change. Many
of them either rely on undef/unreachable too pervasively to be
restored to something well-defined (particularly while making sure
they test the same obscure assert from many years ago), or depend on a
particular CFG shape, which is disrupted by SimplifyCFG.

rdar://problem/16227836

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209883 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-30 10:09:59 +00:00
..
2009-07-17-CrossRegClassCopy.ll
Remove arm_apcscc from the test files. It is the default and doing this
2010-06-17 15:18:27 +00:00
2009-07-21-ISelBug.ll
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.
2013-07-14 06:24:09 +00:00
2009-07-23-CPIslandBug.ll
Remove arm_apcscc from the test files. It is the default and doing this
2010-06-17 15:18:27 +00:00
2009-07-30-PEICrash.ll
Remove arm_apcscc from the test files. It is the default and doing this
2010-06-17 15:18:27 +00:00
2009-08-01-WrongLDRBOpc.ll
ARM & AArch64: make use of common cmpxchg idioms after expansion
2014-05-30 10:09:59 +00:00
2009-08-02-CoalescerBug.ll
Remove support for parsing the "type i32" syntax for defining a numbered
2011-06-19 00:03:46 +00:00
2009-08-04-CoalescerAssert.ll
Remove the arm_aapcscc marker from the tests. It is the default
2010-06-15 19:04:29 +00:00
2009-08-04-CoalescerBug.ll
Remove support for parsing the "type i32" syntax for defining a numbered
2011-06-19 00:03:46 +00:00
2009-08-04-ScavengerAssert.ll
Remove support for parsing the "type i32" syntax for defining a numbered
2011-06-19 00:03:46 +00:00
2009-08-04-SubregLoweringBug2.ll
Remove arm_apcscc from the test files. It is the default and doing this
2010-06-17 15:18:27 +00:00
2009-08-04-SubregLoweringBug3.ll
Remove arm_apcscc from the test files. It is the default and doing this
2010-06-17 15:18:27 +00:00
2009-08-04-SubregLoweringBug.ll
rip out a ton of intrinsic modernization logic from AutoUpgrade.cpp, which is
2011-06-18 06:05:24 +00:00
2009-08-06-SpDecBug.ll
ARM & AArch64: make use of common cmpxchg idioms after expansion
2014-05-30 10:09:59 +00:00
2009-08-07-CoalescerBug.ll
…
2009-08-07-NeonFPBug.ll
Remove arm_apcscc from the test files. It is the default and doing this
2010-06-17 15:18:27 +00:00
2009-08-08-ScavengerAssert.ll
Remove the arm_aapcscc marker from the tests. It is the default
2010-06-15 19:04:29 +00:00
2009-08-10-ISelBug.ll
Remove arm_apcscc from the test files. It is the default and doing this
2010-06-17 15:18:27 +00:00
2009-08-21-PostRAKill4.ll
Move thumb2 tests to the thumb2 directory
2010-09-17 20:34:09 +00:00
2009-09-01-PostRAProlog.ll
Move thumb2 tests to the thumb2 directory
2010-09-17 20:34:09 +00:00
2009-09-28-ITBlockBug.ll
ARM & AArch64: make use of common cmpxchg idioms after expansion
2014-05-30 10:09:59 +00:00
2009-10-15-ITBlockBranch.ll
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.
2013-07-14 06:24:09 +00:00
2009-11-01-CopyReg2RegBug.ll
Remove arm_apcscc from the test files. It is the default and doing this
2010-06-17 15:18:27 +00:00
2009-11-11-ScavengerAssert.ll
Remove arm_apcscc from the test files. It is the default and doing this
2010-06-17 15:18:27 +00:00
2009-11-13-STRDBug.ll
Remove arm_apcscc from the test files. It is the default and doing this
2010-06-17 15:18:27 +00:00
2009-12-01-LoopIVUsers.ll
ARM VLDR/VSTR instructions don't need a size suffix.
2011-11-14 23:03:21 +00:00
2010-01-06-TailDuplicateLabels.ll
Fix the remaining TCL-style quotes found in the testsuite. This is
2012-07-02 19:09:46 +00:00
2010-01-19-RemovePredicates.ll
Remove arm_apcscc from the test files. It is the default and doing this
2010-06-17 15:18:27 +00:00
2010-02-11-phi-cycle.ll
Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion.
2013-07-13 20:38:47 +00:00
2010-02-24-BigStack.ll
Remove arm_apcscc from the test files. It is the default and doing this
2010-06-17 15:18:27 +00:00
2010-03-08-addi12-ccout.ll
Remove arm_apcscc from the test files. It is the default and doing this
2010-06-17 15:18:27 +00:00
2010-03-15-AsmCCClobber.ll
Upgrade syntax of tests using volatile instructions to use 'load volatile' instead of 'volatile load', which is archaic.
2011-11-27 06:54:59 +00:00
2010-04-15-DynAllocBug.ll
ARM & AArch64: make use of common cmpxchg idioms after expansion
2014-05-30 10:09:59 +00:00
2010-04-26-CopyRegCrash.ll
Remove arm_apcscc from the test files. It is the default and doing this
2010-06-17 15:18:27 +00:00
2010-05-24-rsbs.ll
Remove arm_apcscc from the test files. It is the default and doing this
2010-06-17 15:18:27 +00:00
2010-06-14-NEONCoalescer.ll
ARM VLDR/VSTR instructions don't need a size suffix.
2011-11-14 23:03:21 +00:00
2010-06-19-ITBlockCrash.ll
Fix a crash caused by dereference of MBB.end(). rdar://8110842
2010-06-20 00:54:38 +00:00
2010-06-21-TailMergeBug.ll
ARM & AArch64: make use of common cmpxchg idioms after expansion
2014-05-30 10:09:59 +00:00
2010-08-10-VarSizedAllocaBug.ll
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.
2013-07-14 06:24:09 +00:00
2010-11-22-EpilogueBug.ll
ARM & AArch64: make use of common cmpxchg idioms after expansion
2014-05-30 10:09:59 +00:00
2010-12-03-AddSPNarrowing.ll
The Thumb tADDrSPi instruction is not valid when the destination is SP.
2010-12-04 04:40:19 +00:00
2011-04-21-FILoweringBug.ll
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.
2013-07-14 06:24:09 +00:00
2011-06-07-TwoAddrEarlyClobber.ll
ARM & AArch64: make use of common cmpxchg idioms after expansion
2014-05-30 10:09:59 +00:00
2011-12-16-T2SizeReduceAssert.ll
[Thumbv8] Fix the value of BLXOperandIndex of isV8EligibleForIT
2014-01-23 19:55:33 +00:00
2012-01-13-CBNZBug.ll
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.
2013-07-14 06:24:09 +00:00
2013-02-19-tail-call-register-hint.ll
TBAA: remove !tbaa from testing cases if not used.
2013-04-30 17:52:57 +00:00
2013-03-02-vduplane-nonconstant-source-index.ll
ARM: Creating a vector from a lane of another.
2013-03-02 20:16:24 +00:00
2013-03-06-vector-sext-operand-scalarize.ll
Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion.
2013-07-13 20:38:47 +00:00
aligned-constants.ll
Fix off-by-one error in bucket sort.
2011-12-16 23:00:05 +00:00
aligned-spill.ll
Make ARMAsmPrinter generate the correct alignment specifier syntax in instructions.
2013-02-22 10:01:33 +00:00
bfi.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
bfx.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
buildvector-crash.ll
ARM & AArch64: make use of common cmpxchg idioms after expansion
2014-05-30 10:09:59 +00:00
carry.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
constant-islands.ll
Remove -arm-disable-ehabi option
2014-02-07 20:12:49 +00:00
cortex-fp.ll
Add extra CHECK prefix to tests with explicit prefix
2014-02-16 13:28:15 +00:00
crash.ll
Make RAFast::UsedInInstr indexed by register units.
2013-02-21 19:35:21 +00:00
cross-rc-coalescing-1.ll
Remove arm_apcscc from the test files. It is the default and doing this
2010-06-17 15:18:27 +00:00
cross-rc-coalescing-2.ll
ARM & AArch64: make use of common cmpxchg idioms after expansion
2014-05-30 10:09:59 +00:00
div.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
frameless2.ll
Remove arm_apcscc from the test files. It is the default and doing this
2010-06-17 15:18:27 +00:00
frameless.ll
Remove arm_apcscc from the test files. It is the default and doing this
2010-06-17 15:18:27 +00:00
ifcvt-neon.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
inflate-regs.ll
Add a test case for global live range splitting.
2012-05-23 23:42:23 +00:00
inlineasm.ll
Added a regress test for the bug before close it.
2012-05-09 19:07:04 +00:00
large-call.ll
Fix ARM FastISel tests, as a first step to enabling ARM FastISel
2013-05-14 16:26:38 +00:00
large-stack.ll
Enabling thumb2 mode used to force support for armv6t2. Replace this
2013-12-13 11:16:00 +00:00
ldr-str-imm12.ll
ARM & AArch64: make use of common cmpxchg idioms after expansion
2014-05-30 10:09:59 +00:00
lit.local.cfg
[tests] Cleanup initialization of test suffixes.
2013-08-16 00:37:11 +00:00
longMACt.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
lsr-deficiency.ll
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.
2013-07-14 06:24:09 +00:00
machine-licm.ll
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.
2013-07-14 06:24:09 +00:00
mul_const.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
pic-load.ll
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.
2013-07-14 06:24:09 +00:00
segmented-stacks.ll
Move the segmented stack switch to a function attribute
2014-04-10 22:58:43 +00:00
tail-call-r9.ll
Fix broken CHECK lines.
2014-01-11 21:06:00 +00:00
thumb2-adc.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-add2.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-add3.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-add4.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-add5.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-add6.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-add.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-and2.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-and.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-asr2.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-asr.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-bcc.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-bfc.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-bic.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-branch.ll
ARM & AArch64: make use of common cmpxchg idioms after expansion
2014-05-30 10:09:59 +00:00
thumb2-call-tc.ll
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.
2013-07-14 06:24:09 +00:00
thumb2-call.ll
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.
2013-07-14 06:24:09 +00:00
thumb2-cbnz.ll
ARM & AArch64: make use of common cmpxchg idioms after expansion
2014-05-30 10:09:59 +00:00
thumb2-clz.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-cmn2.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-cmn.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-cmp2.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-cmp.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-eor2.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-eor.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-ifcvt1-tc.ll
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.
2013-07-14 06:24:09 +00:00
thumb2-ifcvt1.ll
Enable generating legacy IT block for AArch32
2013-11-13 18:29:49 +00:00
thumb2-ifcvt2.ll
ARM & AArch64: make use of common cmpxchg idioms after expansion
2014-05-30 10:09:59 +00:00
thumb2-ifcvt3.ll
ARM & AArch64: make use of common cmpxchg idioms after expansion
2014-05-30 10:09:59 +00:00
thumb2-jtb.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-ldm.ll
Fix the Load/Store optimization pass to work with Thumb1.
2014-05-16 14:14:30 +00:00
thumb2-ldr_ext.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-ldr_post.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-ldr_pre.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-ldr.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-ldrb.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-ldrd.ll
Switch a few tests off linearscan.
2011-11-12 19:53:52 +00:00
thumb2-ldrh.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-lsl2.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-lsl.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-lsr2.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-lsr3.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-lsr.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-mla.ll
ARM: fix test case missed in previous roundup
2014-04-04 01:19:56 +00:00
thumb2-mls.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-mov.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-mul.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-mulhi.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-mvn2.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-mvn.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-neg.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-orn2.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-orn.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-orr2.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-orr.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-pack.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-rev16.ll
Enabling thumb2 mode used to force support for armv6t2. Replace this
2013-12-13 11:16:00 +00:00
thumb2-rev.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-ror.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-rsb2.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-rsb.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-sbc.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-select_xform.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-select.ll
ARM: update even more tests
2014-04-03 17:35:22 +00:00
thumb2-shifter.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-smla.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-smul.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-spill-q.ll
ARM & AArch64: make use of common cmpxchg idioms after expansion
2014-05-30 10:09:59 +00:00
thumb2-str_post.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-str_pre.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-str.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-strb.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-strh.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-sub2.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-sub3.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-sub4.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-sub5.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-sub.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-sxt_rot.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-sxt-uxt.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-tbb.ll
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.
2013-07-14 06:24:09 +00:00
thumb2-tbh.ll
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.
2013-07-14 06:24:09 +00:00
thumb2-teq2.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-teq.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-tst2.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-tst.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-uxt_rot.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
thumb2-uxtb.ll
ARM: yet another round of ARM test clean ups
2014-04-03 23:47:24 +00:00
tls1.ll
Add support for parsing ARM symbol variants on ELF targets
2013-12-04 22:43:20 +00:00
tls2.ll
Add support for parsing ARM symbol variants on ELF targets
2013-12-04 22:43:20 +00:00
v8_IT_1.ll
Enable generating legacy IT block for AArch32
2013-11-13 18:29:49 +00:00
v8_IT_2.ll
Enable generating legacy IT block for AArch32
2013-11-13 18:29:49 +00:00
v8_IT_3.ll
ARM & AArch64: make use of common cmpxchg idioms after expansion
2014-05-30 10:09:59 +00:00
v8_IT_4.ll
Enable generating legacy IT block for AArch32
2013-11-13 18:29:49 +00:00
v8_IT_5.ll
ARM & AArch64: make use of common cmpxchg idioms after expansion
2014-05-30 10:09:59 +00:00
v8_IT_6.ll
ARMv8 IfConversion must skip narrow instructions that a) define CPSR and b) wouldn't affect CPSR in an IT block
2014-02-26 11:27:28 +00:00