Moritz Roth d84561bf69 ARM: Fix and re-enable load/store optimizer for Thumb1. ... In a previous iteration of the pass, we would try to compensate for writeback by updating later instructions and/or inserting a SUBS to reset the base register if necessary. Since such a SUBS sets the condition flags it's not generally safe to do this. For now, only merge LDR/STRs if there is no writeback to the base register (LDM that loads into the base register) or the base register is killed by one of the merged instructions. These cases are clear wins both in terms of instruction count and performance. Also add three new test cases, and update the existing ones accordingly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215729 91177308-0d34-0410-b5e6-96231b3b80d8		2014-08-15 17:00:30 +00:00
..
2007-01-31-RegInfoAssert.ll
2007-02-02-JoinIntervalsCrash.ll
2007-05-05-InvalidPushPop.ll
2009-06-18-ThumbCommuteMul.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
2009-07-20-TwoAddrBug.ll
2009-07-27-PEIAssert.ll
2009-08-12-ConstIslandAssert.ll
2009-08-12-RegInfoAssert.ll
2009-08-20-ISelBug.ll	Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.	2013-07-14 06:24:09 +00:00
2009-12-17-pre-regalloc-taildup.ll
2010-06-18-SibCallCrash.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
2010-07-01-FuncAlign.ll
2010-07-15-debugOrdering.ll	DebugInfo: Use the SPMap to find the parent CU of inlined functions as they may not be in the current CU	2014-05-21 23:14:12 +00:00
2011-05-11-DAGLegalizer.ll
2011-06-16-NoGPRs.ll
2011-EpilogueBug.ll
2012-04-26-M0ISelBug.ll	Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.	2013-07-14 06:24:09 +00:00
2014-06-10-thumb1-ldst-opt-bug.ll	ARM: Fix and re-enable load/store optimizer for Thumb1.	2014-08-15 17:00:30 +00:00
asmprinter-bug.ll
barrier.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
cortex-m0-unaligned-access.ll	ARM: cortex-m0 doesn't support unaligned memory access.	2014-04-02 19:28:13 +00:00
DbgValueOtherTargets.test	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
dyn-stackalloc.ll	ARM: Fix and re-enable load/store optimizer for Thumb1.	2014-08-15 17:00:30 +00:00
fastcc.ll	ARM: Fix fastcc calling convention for Thumb1	2014-06-13 08:33:03 +00:00
fpconv.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
fpow.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
frame_thumb.ll
iabs.ll	llvm/test/CodeGen/Thumb/iabs.ll: Add explicit -mtriple=thumb-unknown-unknown to appease win32 hosts.	2013-03-05 02:18:52 +00:00
inlineasm-imm-thumb.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
inlineasm-thumb.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
ispositive.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
large-stack.ll	This adds range checking for "ldr Rn, [pc, #imm]" Thumb	2013-07-22 15:49:36 +00:00
ldm-merge-call.ll	ARM: Fix and re-enable load/store optimizer for Thumb1.	2014-08-15 17:00:30 +00:00
ldm-merge-struct.ll	ARM: Fix and re-enable load/store optimizer for Thumb1.	2014-08-15 17:00:30 +00:00
ldr_ext.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
ldr_frame.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
lit.local.cfg	Reduce verbiage of lit.local.cfg files	2014-06-09 22:42:55 +00:00
long_shift.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
long-setcc.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
long.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
mature-mc-support.ll	Add triples to try to fix the windows bots.	2014-02-13 16:49:47 +00:00
mul.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
pop.ll	Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.	2013-07-14 06:24:09 +00:00
PR17309.ll	17309 ARM backend incorrectly lowers COPY_STRUCT_BYVAL_I32 for thumb1 targets	2013-10-17 19:52:05 +00:00
push.ll	Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.	2013-07-14 06:24:09 +00:00
rev.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
segmented-stacks-dynamic.ll	Move the segmented stack switch to a function attribute	2014-04-10 22:58:43 +00:00
segmented-stacks.ll	Segmented stacks: omit __morestack call when there's no frame.	2014-05-22 13:03:43 +00:00
select.ll	Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally.	2013-07-14 06:24:09 +00:00
sjljehprepare-lower-vector.ll	CodeGen: Stop treating vectors as aggregates	2014-01-21 22:46:46 +00:00
stack_guard_remat.ll	[ARM] In dynamic-no-pic mode, ARM's post-RA pseudo expansion was incorrectly	2014-08-02 05:40:40 +00:00
stack-coloring-without-frame-ptr.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
stack-frame.ll	Make this test not match its own filename, when being run from a path that includes the string 'add'.	2014-04-15 22:29:32 +00:00
stm-merge.ll	ARM: Fix and re-enable load/store optimizer for Thumb1.	2014-08-15 17:00:30 +00:00
thumb-imm.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
thumb-ldm.ll	ARM: Fix and re-enable load/store optimizer for Thumb1.	2014-08-15 17:00:30 +00:00
thumb-memcpy-ldm-stm.ll	ARM: Fix and re-enable load/store optimizer for Thumb1.	2014-08-15 17:00:30 +00:00
trap.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
triple.ll	Correctly handle the degenerated triple "thumb".	2013-12-18 21:29:44 +00:00
tst_teq.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00
unord.ll	Fix broken CHECK lines.	2014-01-11 21:06:00 +00:00
vargs.ll	ARM: yet another round of ARM test clean ups	2014-04-03 23:47:24 +00:00