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llvm-6502/test/CodeGen/Thumb2
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Evan Cheng 342e3161d9 Change ARM / Thumb2 addc / adde and subc / sube modeling to use physical 
register dependency (rather than glue them together). This is general
goodness as it gives scheduler more freedom. However it is motivated by
a nasty bug in isel.

When a i64 sub is expanded to subc + sube.
  libcall #1
     \
      \        subc 
       \       /  \
        \     /    \
         \   /    libcall #2
          sube

If the libcalls are not serialized (i.e. both have chains which are dag
entry), legalizer can serialize them in arbitrary orders. If it's
unlucky, it can force libcall #2 before libcall #1 in the above case.

  subc
   |
  libcall #2
   |
  libcall #1
   |
  sube

However since subc and sube are "glued" together, this ends up being a
cycle when the scheduler combine subc and sube as a single scheduling
unit.

The right solution is to fix LegalizeType too chains the libcalls together.
However, LegalizeType is not processing nodes in order so that's harder than
it should be. For now, the move to physical register dependency will do.

rdar://10019576


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138791 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-30 01:34:54 +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 Remove arm_apcscc from the test files. It is the default and doing this 2010-06-17 15:18:27 +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 Remove arm_apcscc from the test files. It is the default and doing this 2010-06-17 15:18:27 +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 Roll r127459 back in: 2011-03-11 21:52:04 +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 Roll r127459 back in: 2011-03-11 21:52:04 +00:00
2009-10-15-ITBlockBranch.ll Pseudo-ize the t2LDMIA_RET instruction. 2011-06-30 18:25:42 +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 Change ARM / Thumb2 addc / adde and subc / sube modeling to use physical 2011-08-30 01:34:54 +00:00
2010-01-06-TailDuplicateLabels.ll Remove arm_apcscc from the test files. It is the default and doing this 2010-06-17 15:18:27 +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 Remove arm_apcscc from the test files. It is the default and doing this 2010-06-17 15:18:27 +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 Fix Thumb and Thumb2 tests to be register allocator independent. 2011-03-31 23:31:50 +00:00
2010-04-15-DynAllocBug.ll Re-apply r112883: 2010-09-03 18:37:12 +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 Fix more register allocation sensitive tests. 2011-07-08 00:24:06 +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 Use MachineBranchProbabilityInfo in If-Conversion instead of its own heuristics. 2011-08-03 22:34:43 +00:00
2010-08-10-VarSizedAllocaBug.ll Fix more register and coalescing dependencies. 2011-05-04 19:02:11 +00:00
2010-11-22-EpilogueBug.ll Roll r127459 back in: 2011-03-11 21:52:04 +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 In Thumb2 mode, lower frame indix references to: 2011-04-22 01:42:52 +00:00
2011-06-07-TwoAddrEarlyClobber.ll Thumb1 register to register MOV instruction is predicable. 2011-06-30 22:10:46 +00:00
bfi.ll Fix more register and coalescing dependencies. 2011-05-04 19:02:11 +00:00
bfx.ll Update ARM DAGtoDAG for matching UBFX instruction for unsigned bitfield 2010-04-22 23:24:18 +00:00
buildvector-crash.ll Fix crash introduced in 116852. 8573915. 2010-10-20 22:03:37 +00:00
carry.ll
cortex-fp.ll Change register allocation order for ARM VFP and NEON registers to put the 2010-10-08 06:15:13 +00:00
crash.ll Add alignment arguments to all the NEON load/store intrinsics. 2010-08-27 17:13:24 +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 Roll r127459 back in: 2011-03-11 21:52:04 +00:00
dg.exp
div.ll These tests are looking for library function names that 2010-11-17 21:57:32 +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 Remove arm_apcscc from the test files. It is the default and doing this 2010-06-17 15:18:27 +00:00
large-stack.ll When using the 'push' mnemonic for Thumb2 stmdb, be explicit when it's the 2010-12-03 20:33:01 +00:00
ldr-str-imm12.ll Switch ARM to using AltOrders instead of MethodBodies. 2011-06-18 01:14:46 +00:00
lsr-deficiency.ll Fix more register allocation sensitive tests. 2011-07-08 00:24:06 +00:00
machine-licm.ll Make tBX_RET and tBX_RET_vararg predicable. 2011-07-08 21:50:04 +00:00
mul_const.ll
pic-load.ll Remove arm_apcscc from the test files. It is the default and doing this 2010-06-17 15:18:27 +00:00
thumb2-adc.ll
thumb2-add2.ll
thumb2-add3.ll Convert Thumb2 tests to FileCheck for PR5307. 2009-11-22 15:18:27 +00:00
thumb2-add4.ll
thumb2-add5.ll
thumb2-add6.ll
thumb2-add.ll FileCheck-ize another test. Reduces the llc invocations from 8 to 1, and 2011-07-02 21:34:52 +00:00
thumb2-and2.ll update tests for smarter BIC usage 2010-07-20 16:16:48 +00:00
thumb2-and.ll
thumb2-asr2.ll
thumb2-asr.ll
thumb2-barrier.ll Overhaul memory barriers in the ARM backend. Radar 8601999. 2010-10-30 00:54:37 +00:00
thumb2-bcc.ll Introduce MCCodeGenInfo, which keeps information that can affect codegen 2011-07-19 06:37:02 +00:00
thumb2-bfc.ll
thumb2-bic.ll
thumb2-branch.ll Improve test cases from r134746. 2011-07-12 16:06:01 +00:00
thumb2-call-tc.ll Temporarily disable tail calls on ARM to work around some linker problems. 2010-08-13 22:43:33 +00:00
thumb2-call.ll Remove tail call to preserve this test. A tail 2010-06-03 21:57:48 +00:00
thumb2-cbnz.ll Since I can't reproduce the failures from 131261, re-trying with a 2011-05-13 00:51:54 +00:00
thumb2-clz.ll Change some ARM subtarget features to be single bit yes/no in order to sink them down to MC layer. Also fix tests. 2011-07-07 03:55:05 +00:00
thumb2-cmn2.ll
thumb2-cmn.ll Explicitly request physreg coalesing for a bunch of Thumb2 unit tests. 2011-05-04 19:02:07 +00:00
thumb2-cmp2.ll Explicitly request physreg coalesing for a bunch of Thumb2 unit tests. 2011-05-04 19:02:07 +00:00
thumb2-cmp.ll Explicitly request physreg coalesing for a bunch of Thumb2 unit tests. 2011-05-04 19:02:07 +00:00
thumb2-eor2.ll
thumb2-eor.ll PR7458: Try commuting Thumb2 instruction operands to put them into 2-address 2010-06-24 16:50:20 +00:00
thumb2-ifcvt1-tc.ll Temporarily disable tail calls on ARM to work around some linker problems. 2010-08-13 22:43:33 +00:00
thumb2-ifcvt1.ll Use MachineBranchProbabilityInfo in If-Conversion instead of its own heuristics. 2011-08-03 22:34:43 +00:00
thumb2-ifcvt2.ll Allow ARM if-converter to be run after post allocation scheduling. 2010-06-18 23:09:54 +00:00
thumb2-ifcvt3.ll Last round of fixes for movw + movt global address codegen. 2011-01-21 18:55:51 +00:00
thumb2-jtb.ll
thumb2-ldm.ll Thumb assembly parsing and encoding for LDM instruction. 2011-08-18 21:50:53 +00:00
thumb2-ldr_ext.ll
thumb2-ldr_post.ll
thumb2-ldr_pre.ll
thumb2-ldr.ll Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm 2010-03-17 17:52:21 +00:00
thumb2-ldrb.ll
thumb2-ldrd.ll Fix Thumb and Thumb2 tests to be register allocator independent. 2011-03-31 23:31:50 +00:00
thumb2-ldrh.ll Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm 2010-03-17 17:52:21 +00:00
thumb2-lsl2.ll
thumb2-lsl.ll
thumb2-lsr2.ll
thumb2-lsr3.ll Make tests more useful. 2011-04-25 10:12:01 +00:00
thumb2-lsr.ll
thumb2-mla.ll Convert Thumb2 tests to FileCheck for PR5307. 2009-11-22 15:18:27 +00:00
thumb2-mls.ll Update tests. 2011-08-19 22:19:48 +00:00
thumb2-mov.ll Remove ARM isel hacks that fold large immediates into a pair of add, sub, and, 2010-11-17 20:13:28 +00:00
thumb2-mul.ll Update tests. 2011-08-19 22:19:48 +00:00
thumb2-mulhi.ll ARMv7M vs. ARMv7E-M support. 2011-07-01 21:12:19 +00:00
thumb2-mvn2.ll
thumb2-mvn.ll
thumb2-neg.ll
thumb2-orn2.ll Convert Thumb2 tests to FileCheck for PR5307. 2009-11-22 15:18:27 +00:00
thumb2-orn.ll Miss two, PR5307. 2009-11-22 15:35:28 +00:00
thumb2-orr2.ll Miss two, PR5307. 2009-11-22 15:35:28 +00:00
thumb2-orr.ll
thumb2-pack.ll Change ARM PKHTB and PKHBT instructions to use a shift_imm operand to avoid 2010-08-17 17:23:19 +00:00
thumb2-rev16.ll
thumb2-rev.ll Change some ARM subtarget features to be single bit yes/no in order to sink them down to MC layer. Also fix tests. 2011-07-07 03:55:05 +00:00
thumb2-ror.ll Teach Thumb2 isel to fold and->rotr ==> ROR. 2011-04-29 14:18:15 +00:00
thumb2-rsb2.ll Convert Thumb2 tests to FileCheck for PR5307. 2009-11-22 15:18:27 +00:00
thumb2-rsb.ll Convert Thumb2 tests to FileCheck for PR5307. 2009-11-22 15:18:27 +00:00
thumb2-sbc.ll Don't depend on the optimization reverted in r134067. 2011-06-29 14:07:18 +00:00
thumb2-select_xform.ll Remove ARM isel hacks that fold large immediates into a pair of add, sub, and, 2010-11-17 20:13:28 +00:00
thumb2-select.ll
thumb2-shifter.ll Cleanup of ARMv7M support. Move hardware divide and Thumb2 extract/pack 2010-05-05 23:44:43 +00:00
thumb2-smla.ll ARMv7M vs. ARMv7E-M support. 2011-07-01 21:12:19 +00:00
thumb2-smul.ll ARMv7M vs. ARMv7E-M support. 2011-07-01 21:12:19 +00:00
thumb2-spill-q.ll Add ARM patterns to match EXTRACT_SUBVECTOR nodes. 2011-01-07 04:59:04 +00:00
thumb2-str_post.ll
thumb2-str_pre.ll Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm 2010-03-17 17:52:21 +00:00
thumb2-str.ll Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm 2010-03-17 17:52:21 +00:00
thumb2-strb.ll Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm 2010-03-17 17:52:21 +00:00
thumb2-strh.ll Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm 2010-03-17 17:52:21 +00:00
thumb2-sub2.ll Convert Thumb2 tests to FileCheck for PR5307. 2009-11-22 15:18:27 +00:00
thumb2-sub3.ll Thumb2 and ARM add/subtract with carry fixes. 2011-04-23 03:55:32 +00:00
thumb2-sub4.ll
thumb2-sub5.ll Thumb2 and ARM add/subtract with carry fixes. 2011-04-23 03:55:32 +00:00
thumb2-sub.ll
thumb2-sxt_rot.ll manually upgrade a bunch of tests to modern syntax, and remove some that 2011-06-17 03:14:27 +00:00
thumb2-sxt-uxt.ll Fix up the patterns for SXTB, SXTH, UXTB, and UXTH so that they are correctly active without HasT2ExtractPack. PR10611. 2011-08-08 19:49:37 +00:00
thumb2-tbb.ll
thumb2-tbh.ll Remove arm_apcscc from the test files. It is the default and doing this 2010-06-17 15:18:27 +00:00
thumb2-teq2.ll Improve codegen for select's: 2011-07-13 00:42:17 +00:00
thumb2-teq.ll Improve codegen for select's: 2011-07-13 00:42:17 +00:00
thumb2-tst2.ll Improve codegen for select's: 2011-07-13 00:42:17 +00:00
thumb2-tst.ll Improve codegen for select's: 2011-07-13 00:42:17 +00:00
thumb2-uxt_rot.ll manually upgrade a bunch of tests to modern syntax, and remove some that 2011-06-17 03:14:27 +00:00
thumb2-uxtb.ll Recommit r129383. PreRA scheduler heuristic fixes: VRegCycle, TokenFactor latency. 2011-04-13 00:38:32 +00:00
tls1.ll
tls2.ll