Bob Wilson 7d24705f65 Change register allocation order for ARM VFP and NEON registers to put the ... callee-saved registers at the end of the lists. Also prefer to avoid using the low registers that are in register subclasses required by certain instructions, so that those registers will more likely be available when needed. This change makes a huge improvement in spilling in some cases. Thanks to Jakob for helping me realize the problem. Most of this patch is fixing the testsuite. There are quite a few places where we're checking for specific registers. I changed those to wildcards in places where that doesn't weaken the tests. The spill-q.ll and thumb2-spill-q.ll tests stopped spilling with this change, so I added a bunch of live values to force spills on those tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116055 91177308-0d34-0410-b5e6-96231b3b80d8		2010-10-08 06:15:13 +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 arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +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 arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-08-04-ScavengerAssert.ll	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-08-04-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	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-08-06-SpDecBug.ll	Remove the arm_aapcscc marker from the tests. It is the default	2010-06-15 19:04:29 +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	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
2009-10-15-ITBlockBranch.ll	Now that register allocation properly considers reserved regs, simplify the	2010-09-02 18:14:29 +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	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +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	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +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	Change register allocation order for ARM VFP and NEON registers to put the	2010-10-08 06:15:13 +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	Simplify ARM callee-saved register handling by removing the distinction	2010-09-20 19:32:20 +00:00
2010-08-10-VarSizedAllocaBug.ll	Re-apply r110655 with fixes. Epilogue must restore sp from fp if the function stack frame has a var-sized object.	2010-08-10 19:30:19 +00:00
bfi.ll	Add combiner patterns to more effectively utilize the BFI (bitfield insert)	2010-07-17 03:30:54 +00:00
bfx.ll	Update ARM DAGtoDAG for matching UBFX instruction for unsigned bitfield	2010-04-22 23:24:18 +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	Remove arm_apcscc from the test files. It is the default and doing this	2010-06-17 15:18:27 +00:00
dg.exp
div.ll	Report error if codegen tries to instantiate a ARM target when the cpu does support it. e.g. cortex-m* processors.	2010-08-11 07:17:46 +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	Teach the (non-MC) instruction printer to use the cannonical names for push/pop,	2010-09-17 22:36:38 +00:00
ldr-str-imm12.ll	Now that register allocation properly considers reserved regs, simplify the	2010-09-02 18:14:29 +00:00
load-global.ll	Start function numbering at 0.	2010-04-17 16:29:15 +00:00
lsr-deficiency.ll	Now that register allocation properly considers reserved regs, simplify the	2010-09-02 18:14:29 +00:00
machine-licm-vdup.ll	Fix NEON VLD pseudo instruction itineraries that were incorrectly copied from	2010-09-09 05:40:26 +00:00
machine-licm.ll	Change register allocation order for ARM VFP and NEON registers to put the	2010-10-08 06:15:13 +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	Delete useless trailing semicolons.	2010-01-05 17:55:26 +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	- Add subtarget feature -mattr=+db which determine whether an ARM cpu has the	2010-08-11 06:22:01 +00:00
thumb2-bcc.ll	Fix tests.	2009-11-01 18:13:29 +00:00
thumb2-bfc.ll	Fix Thumb2 failures by converting them to FileCheck.	2009-10-27 06:31:02 +00:00
thumb2-bic.ll
thumb2-branch.ll	Fix a bug which prevented tail merging of return instructions in	2010-05-03 14:35:47 +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	Allow ARM if-converter to be run after post allocation scheduling.	2010-06-18 23:09:54 +00:00
thumb2-clz.ll	Fix Thumb2 failures by converting them to FileCheck.	2009-10-27 06:31:02 +00:00
thumb2-cmn2.ll	Fix Thumb2 failures by converting them to FileCheck.	2009-10-27 06:31:02 +00:00
thumb2-cmn.ll	Convert Thumb2 tests to FileCheck for PR5307.	2009-11-22 15:18:27 +00:00
thumb2-cmp2.ll
thumb2-cmp.ll	ARM/Thumb2: Fix a misselect in getARMCmp, when attempting to adjust a signed	2010-08-25 16:58:05 +00:00
thumb2-eor2.ll	Fix Thumb2 failures by converting them to FileCheck.	2009-10-27 06:31:02 +00:00
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	Remove tail call. A tail call version will follow.	2010-06-04 00:03:37 +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	Reapply my if-conversion cleanup from svn r106939 with fixes.	2010-06-29 00:55:23 +00:00
thumb2-jtb.ll	Enable arm jumpt table adjustment.	2009-11-17 21:24:11 +00:00
thumb2-ldm.ll	Make this test not use tail calls. A tail call	2010-06-03 21:53:01 +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
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
thumb2-lsr.ll
thumb2-mla.ll	Convert Thumb2 tests to FileCheck for PR5307.	2009-11-22 15:18:27 +00:00
thumb2-mls.ll	Convert Thumb2 tests to FileCheck for PR5307.	2009-11-22 15:18:27 +00:00
thumb2-mov.ll	Consolidate test files	2009-10-31 22:20:56 +00:00
thumb2-mul.ll
thumb2-mulhi.ll
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	Cleanup of ARMv7M support. Move hardware divide and Thumb2 extract/pack	2010-05-05 23:44:43 +00:00
thumb2-ror2.ll
thumb2-ror.ll	Convert Thumb2 tests to FileCheck for PR5307.	2009-11-22 15:18:27 +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	Improve 64-subtraction of immediates when parts of the immediate can fit	2010-07-14 17:45:16 +00:00
thumb2-select_xform.ll	Move ARM if-conversion before post-ra scheduling.	2010-06-18 23:32:07 +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	Cleanup of ARMv7M support. Move hardware divide and Thumb2 extract/pack	2010-05-05 23:44:43 +00:00
thumb2-smul.ll	Cleanup of ARMv7M support. Move hardware divide and Thumb2 extract/pack	2010-05-05 23:44:43 +00:00
thumb2-spill-q.ll	Change register allocation order for ARM VFP and NEON registers to put the	2010-10-08 06:15:13 +00:00
thumb2-str_post.ll	Fix Thumb2 failures by converting them to FileCheck.	2009-10-27 06:31:02 +00:00
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	Improve 64-subtraction of immediates when parts of the immediate can fit	2010-07-14 17:45:16 +00:00
thumb2-sub4.ll
thumb2-sub5.ll
thumb2-sub.ll
thumb2-sxt_rot.ll	Cleanup of ARMv7M support. Move hardware divide and Thumb2 extract/pack	2010-05-05 23:44:43 +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	Convert to FileCheck	2009-11-16 20:04:15 +00:00
thumb2-teq.ll	Convert Thumb2 tests to FileCheck for PR5307.	2009-11-22 15:18:27 +00:00
thumb2-tst2.ll
thumb2-tst.ll	Convert Thumb2 tests to FileCheck for PR5307.	2009-11-22 15:18:27 +00:00
thumb2-uxt_rot.ll	Cleanup of ARMv7M support. Move hardware divide and Thumb2 extract/pack	2010-05-05 23:44:43 +00:00
thumb2-uxtb.ll	update tests for smarter BIC usage	2010-07-20 16:16:48 +00:00
tls1.ll
tls2.ll