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
2009-07-21-ISelBug.ll
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	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
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
2010-04-15-DynAllocBug.ll
2010-04-26-CopyRegCrash.ll
2010-05-24-rsbs.ll
2010-06-14-NEONCoalescer.ll	Fix more register allocation sensitive tests.	2011-07-08 00:24:06 +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
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
bfi.ll
bfx.ll
buildvector-crash.ll
carry.ll
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	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
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-barrier.ll
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
thumb2-call.ll
thumb2-cbnz.ll
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
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
thumb2-ifcvt3.ll
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
thumb2-ldrb.ll
thumb2-ldrd.ll
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
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
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
thumb2-uxtb.ll
tls1.ll
tls2.ll