Bob Wilson f74a429816 Overhaul memory barriers in the ARM backend. Radar 8601999. ... There were a number of issues to fix up here: * The "device" argument of the llvm.memory.barrier intrinsic should be used to distinguish the "Full System" domain from the "Inner Shareable" domain. It has nothing to do with using DMB vs. DSB instructions. * The compiler should never need to emit DSB instructions. Remove the ARMISD::SYNCBARRIER node and also remove the instruction patterns for DSB. * Merge the separate DMB/DSB instructions for options only used for the disassembler with the default DMB/DSB instructions. Add the default "full system" option ARM_MB::SY to the ARM_MB::MemBOpt enum. * Add a separate ARMISD::MEMBARRIER_MCR node for subtargets that implement a data memory barrier using the MCR instruction. * Fix up encodings for these instructions (except MCR). I also updated the tests and added a few new ones to check for DMB options that were not currently being exercised. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117756 91177308-0d34-0410-b5e6-96231b3b80d8		2010-10-30 00:54:37 +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
2009-08-04-CoalescerAssert.ll
2009-08-04-CoalescerBug.ll
2009-08-04-ScavengerAssert.ll
2009-08-04-SubregLoweringBug2.ll
2009-08-04-SubregLoweringBug3.ll
2009-08-04-SubregLoweringBug.ll
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	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
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
2009-11-11-ScavengerAssert.ll
2009-11-13-STRDBug.ll
2009-12-01-LoopIVUsers.ll
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	Re-apply r112883:	2010-09-03 18:37:12 +00:00
2010-04-26-CopyRegCrash.ll
2010-05-24-rsbs.ll
2010-06-14-NEONCoalescer.ll	Avoiding overly aggressive latency scheduling. If the two nodes share an	2010-10-29 18:09:28 +00:00
2010-06-19-ITBlockCrash.ll
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
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
cross-rc-coalescing-2.ll	Avoiding overly aggressive latency scheduling. If the two nodes share an	2010-10-29 18:09:28 +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
frameless.ll
ifcvt-neon.ll
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
lsr-deficiency.ll	Now that register allocation properly considers reserved regs, simplify the	2010-09-02 18:14:29 +00:00
machine-licm.ll	Enable using vdup for vector constants which are splat of	2010-10-19 20:00:17 +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
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
thumb2-bfc.ll
thumb2-bic.ll
thumb2-branch.ll
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
thumb2-cbnz.ll
thumb2-clz.ll
thumb2-cmn2.ll
thumb2-cmn.ll
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
thumb2-eor.ll
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
thumb2-ifcvt2.ll
thumb2-ifcvt3.ll
thumb2-jtb.ll
thumb2-ldm.ll
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
thumb2-mov.ll
thumb2-mul.ll
thumb2-mulhi.ll
thumb2-mvn2.ll
thumb2-mvn.ll
thumb2-neg.ll
thumb2-orn2.ll
thumb2-orn.ll
thumb2-orr2.ll
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
thumb2-ror2.ll
thumb2-ror.ll
thumb2-rsb2.ll
thumb2-rsb.ll
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
thumb2-select.ll
thumb2-shifter.ll
thumb2-smla.ll
thumb2-smul.ll
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
thumb2-str_pre.ll
thumb2-str.ll
thumb2-strb.ll
thumb2-strh.ll
thumb2-sub2.ll
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
thumb2-tbb.ll
thumb2-tbh.ll
thumb2-teq2.ll
thumb2-teq.ll
thumb2-tst2.ll
thumb2-tst.ll
thumb2-uxt_rot.ll
thumb2-uxtb.ll	update tests for smarter BIC usage	2010-07-20 16:16:48 +00:00
tls1.ll
tls2.ll