llvm-6502/test/CodeGen/Thumb2
Evan Cheng bfe8afaaec After r147827 and r147902, it's now possible for unallocatable registers to be
live across BBs before register allocation. This miscompiled 197.parser
when a cmp + b are optimized to a cbnz instruction even though the CPSR def
is live-in a successor.
        cbnz    r6, LBB89_12
...
LBB89_12:
        ble     LBB89_1

The fix consists of two parts. 1) Teach LiveVariables that some unallocatable
registers might be liveouts so don't mark their last use as kill if they are.
2) ARM constantpool island pass shouldn't form cbz / cbnz if the conditional
branch does not kill CPSR.

rdar://10676853


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148168 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-14 01:53:46 +00:00
..
2009-07-17-CrossRegClassCopy.ll
2009-07-21-ISelBug.ll ARM target code clean up. Check for iOS, not Darwin where it makes sense. 2011-12-20 18:26:50 +00:00
2009-07-23-CPIslandBug.ll
2009-07-30-PEICrash.ll
2009-08-01-WrongLDRBOpc.ll
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
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
2009-08-04-SubregLoweringBug3.ll
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
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
2009-09-01-PostRAProlog.ll
2009-09-28-ITBlockBug.ll
2009-10-15-ITBlockBranch.ll Pseudo-ize the t2LDMIA_RET instruction. 2011-06-30 18:25:42 +00:00
2009-11-01-CopyReg2RegBug.ll
2009-11-11-ScavengerAssert.ll
2009-11-13-STRDBug.ll
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
2010-01-19-RemovePredicates.ll
2010-02-11-phi-cycle.ll
2010-02-24-BigStack.ll
2010-03-08-addi12-ccout.ll
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
2010-04-26-CopyRegCrash.ll
2010-05-24-rsbs.ll
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
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
2010-11-22-EpilogueBug.ll Fix more places which should be checking for iOS, not darwin. 2012-01-04 01:55:04 +00:00
2010-12-03-AddSPNarrowing.ll
2011-04-21-FILoweringBug.ll
2011-06-07-TwoAddrEarlyClobber.ll Thumb1 register to register MOV instruction is predicable. 2011-06-30 22:10:46 +00:00
2011-12-16-T2SizeReduceAssert.ll Fix a CPSR liveness tracking bug introduced when I converted IT block to bundle. 2011-12-17 01:25:34 +00:00
2012-01-13-CBNZBug.ll After r147827 and r147902, it's now possible for unallocatable registers to be 2012-01-14 01:53:46 +00:00
aligned-constants.ll Fix off-by-one error in bucket sort. 2011-12-16 23:00:05 +00:00
aligned-spill.ll Enable aligned NEON spilling by default. 2012-01-06 22:19:37 +00:00
bfi.ll
bfx.ll
buildvector-crash.ll
carry.ll
constant-islands.ll Consider unknown alignment caused by OptimizeThumb2Instructions(). 2012-01-10 22:32:14 +00:00
cortex-fp.ll
crash.ll
cross-rc-coalescing-1.ll
cross-rc-coalescing-2.ll
dg.exp
div.ll
frameless2.ll
frameless.ll
ifcvt-neon.ll
large-stack.ll
ldr-str-imm12.ll Linear scan is going away. 2011-11-12 22:39:34 +00:00
lsr-deficiency.ll Fix more register allocation sensitive tests. 2011-07-08 00:24:06 +00:00
machine-licm.ll - Add MachineInstrBundle.h and MachineInstrBundle.cpp. This includes a function 2011-12-14 02:11:42 +00:00
mul_const.ll
pic-load.ll
thumb2-adc.ll
thumb2-add2.ll
thumb2-add3.ll
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
thumb2-and.ll
thumb2-asr2.ll
thumb2-asr.ll
thumb2-bcc.ll Convert more tests to new atomic instructions. 2011-09-26 21:36:10 +00:00
thumb2-bfc.ll
thumb2-bic.ll
thumb2-branch.ll Convert more tests to new atomic instructions. 2011-09-26 21:36:10 +00:00
thumb2-call-tc.ll
thumb2-call.ll
thumb2-cbnz.ll Allow machine-cse to look across MBB boundary when cse'ing instructions that 2012-01-10 02:02:58 +00:00
thumb2-clz.ll Manually upgrade the test suite to specify the flag to cttz and ctlz. 2011-12-12 11:59:10 +00:00
thumb2-cmn2.ll
thumb2-cmn.ll
thumb2-cmp2.ll
thumb2-cmp.ll
thumb2-eor2.ll
thumb2-eor.ll
thumb2-ifcvt1-tc.ll
thumb2-ifcvt1.ll Use MachineBranchProbabilityInfo in If-Conversion instead of its own heuristics. 2011-08-03 22:34:43 +00:00
thumb2-ifcvt2.ll Fix more places which should be checking for iOS, not darwin. 2012-01-04 01:55:04 +00:00
thumb2-ifcvt3.ll
thumb2-jtb.ll
thumb2-ldm.ll Fix more places which should be checking for iOS, not darwin. 2012-01-04 01:55:04 +00:00
thumb2-ldr_ext.ll
thumb2-ldr_post.ll
thumb2-ldr_pre.ll
thumb2-ldr.ll
thumb2-ldrb.ll
thumb2-ldrd.ll Switch a few tests off linearscan. 2011-11-12 19:53:52 +00:00
thumb2-ldrh.ll
thumb2-lsl2.ll
thumb2-lsl.ll
thumb2-lsr2.ll
thumb2-lsr3.ll
thumb2-lsr.ll
thumb2-mla.ll
thumb2-mls.ll Update tests. 2011-08-19 22:19:48 +00:00
thumb2-mov.ll
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
thumb2-orn.ll
thumb2-orr2.ll
thumb2-orr.ll
thumb2-pack.ll
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
thumb2-rsb2.ll
thumb2-rsb.ll
thumb2-sbc.ll Don't depend on the optimization reverted in r134067. 2011-06-29 14:07:18 +00:00
thumb2-select_xform.ll - Add MachineInstrBundle.h and MachineInstrBundle.cpp. This includes a function 2011-12-14 02:11:42 +00:00
thumb2-select.ll
thumb2-shifter.ll
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
thumb2-str_post.ll
thumb2-str_pre.ll
thumb2-str.ll
thumb2-strb.ll
thumb2-strh.ll
thumb2-sub2.ll
thumb2-sub3.ll
thumb2-sub4.ll
thumb2-sub5.ll
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
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
tls1.ll
tls2.ll