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llvm/test/CodeGen/Thumb2
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Evan Cheng ab5c703fdb Fix epilogue codegen to avoid leaving the stack pointer in an invalid 
state. Previously Thumb2 would restore sp from fp like this:
mov sp, r7
sub, sp, #4
If an interrupt is taken after the 'mov' but before the 'sub', callee-saved
registers might be clobbered by the interrupt handler. Instead, try
restoring directly from sp:
add sp, #4
Or, if necessary (with VLA, etc.) use a scratch register to compute sp and
then restore it:
sub.w r4, r7, #8
mov sp, r7
rdar://8465407


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119977 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-22 18:12:04 +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 Fix epilogue codegen to avoid leaving the stack pointer in an invalid 2010-11-22 18:12:04 +00:00
2009-08-07-CoalescerBug.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
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 Two sets of changes. Sorry they are intermingled. 2010-11-03 00:45:17 +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 Rewrite stack callee saved spills and restores to use push/pop instructions. 2010-11-18 19:40:05 +00:00
2010-08-10-VarSizedAllocaBug.ll Fix epilogue codegen to avoid leaving the stack pointer in an invalid 2010-11-22 18:12:04 +00:00
2010-11-22-EpilogueBug.ll Fix epilogue codegen to avoid leaving the stack pointer in an invalid 2010-11-22 18:12:04 +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
buildvector-crash.ll Fix crash introduced in 116852. 8573915. 2010-10-20 22:03:37 +00:00
carry.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
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 Avoiding overly aggressive latency scheduling. If the two nodes share an 2010-10-29 18:09:28 +00:00
dg.exp We should run these tests as well. 2009-06-24 21:36:26 +00:00
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 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.ll Remove ARM isel hacks that fold large immediates into a pair of add, sub, and, 2010-11-17 20:13:28 +00:00
mul_const.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
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 Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-add2.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-add3.ll Convert Thumb2 tests to FileCheck for PR5307. 2009-11-22 15:18:27 +00:00
thumb2-add4.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-add5.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-add6.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
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 Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-asr2.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-asr.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-barrier.ll Overhaul memory barriers in the ARM backend. Radar 8601999. 2010-10-30 00:54:37 +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 Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
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 Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
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 Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-ldr_post.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-ldr_pre.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
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 Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-ldrd.ll Enable pre-regalloc load / store multiple pass for Thumb2. 2009-09-27 09:46:04 +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 Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-lsl.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-lsr2.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-lsr3.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-lsr.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
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 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 Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-mulhi.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-mvn2.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-mvn.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-neg.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
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 Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
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 Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
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 Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
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 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 Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
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 Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-sub5.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
thumb2-sub.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
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 Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
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 Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
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 Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00
tls2.ll Eliminate more uses of llvm-as and llvm-dis. 2009-09-09 00:09:15 +00:00