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95709cad3b
llvm/test/CodeGen/Thumb
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James Molloy 95709cad3b [Thumb] Select a BIC instead of AND if the immediate can be encoded more optimally negated 
If an immediate is only used in an AND node, it is possible that the immediate can be more optimally materialized when negated. If this is the case, we can negate the immediate and use a BIC instead;

  int i(int a) {
    return a & 0xfffffeec;
  }

Used to produce:
    ldr r1, [CONSTPOOL]
    ands r0, r1
  CONSTPOOL: 0xfffffeec

And now produces:
    movs    r1, #255
    adds    r1, #20  ; Less costly immediate generation
    bics    r0, r1

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272251 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-09 07:39:08 +00:00
..
2007-01-31-RegInfoAssert.ll [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
2007-02-02-JoinIntervalsCrash.ll
2007-05-05-InvalidPushPop.ll [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
2009-06-18-ThumbCommuteMul.ll
2009-07-20-TwoAddrBug.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2009-07-27-PEIAssert.ll
2009-08-12-ConstIslandAssert.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2009-08-12-RegInfoAssert.ll [opaque pointer type] Add textual IR support for explicit type parameter to gep operator 2015-03-13 18:20:45 +00:00
2009-08-20-ISelBug.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2009-12-17-pre-regalloc-taildup.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2010-06-18-SibCallCrash.ll
2010-07-01-FuncAlign.ll [MC] Use .p2align instead of .align 2016-01-26 00:03:25 +00:00
2010-07-15-debugOrdering.ll ARM: stop emitting blx instructions for most calls on MachO. 2016-05-10 19:17:47 +00:00
2011-05-11-DAGLegalizer.ll Revert "Change memcpy/memset/memmove to have dest and source alignments." 2015-11-19 05:56:52 +00:00
2011-06-16-NoGPRs.ll [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
2011-EpilogueBug.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
2012-04-26-M0ISelBug.ll Improve logic that decides if its profitable to commute when some of the virtual registers involved have uses/defs chains connecting them to physical register. Fix up the tests that this change improves. 2014-11-05 06:43:02 +00:00
2014-06-10-thumb1-ldst-opt-bug.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
asmprinter-bug.ll [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
barrier.ll ARM: stop emitting blx instructions for most calls on MachO. 2016-05-10 19:17:47 +00:00
bic_imm.ll [Thumb] Select a BIC instead of AND if the immediate can be encoded more optimally negated 2016-06-09 07:39:08 +00:00
constants.ll [Thumb-1] Add optimized constant materialization for integers [256..512) 2016-06-07 13:10:14 +00:00
copy_thumb.ll Lower thumbv4t & thumbv5 lo->lo copies through a push-pop sequence 2014-08-20 23:38:50 +00:00
cortex-m0-unaligned-access.ll [ARM] Define subtarget feature strict-align. 2015-07-28 22:44:28 +00:00
DbgValueOtherTargets.test
dyn-stackalloc.ll Revert "Change memcpy/memset/memmove to have dest and source alignments." 2015-11-19 05:56:52 +00:00
fastcc.ll IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
fpconv.ll
fpow.ll
frame_thumb.ll
iabs.ll Re-add support to llvm-objdump for Mach-O universal files and archives with -macho 2014-12-04 23:56:27 +00:00
inlineasm-imm-thumb.ll
inlineasm-thumb.ll [ARM, inline-asm] Fix ARMTargetLowering::getRegForInlineAsmConstraint to return 2014-11-03 20:37:04 +00:00
ispositive.ll
large-stack.ll Revert r265817 2016-04-08 18:15:37 +00:00
ldm-merge-call.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
ldm-merge-struct.ll Fix tests that used CHECK-NEXT-NOT and CHECK-DAG-NOT. 2016-02-26 19:40:34 +00:00
ldm-stm-base-materialization-thumb2.ll [ARM] Modify codegen for memcpy intrinsic to prefer LDM/STM. 2015-10-05 14:49:54 +00:00
ldm-stm-base-materialization.ll Revert "Change memcpy/memset/memmove to have dest and source alignments." 2015-11-19 05:56:52 +00:00
ldr_ext.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
ldr_frame.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
lit.local.cfg
long_shift.ll
long-setcc.ll
long.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
mature-mc-support.ll
mul.ll
pop.ll [ARM] Refactor the prologue/epilogue emission to be more robust. 2015-07-20 21:42:14 +00:00
PR17309.ll [opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction 2015-02-27 19:29:02 +00:00
push.ll
rev.ll
segmented-stacks-dynamic.ll
segmented-stacks.ll [MC] Use .p2align instead of .align 2016-01-26 00:03:25 +00:00
select.ll
sjljehprepare-lower-vector.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
stack_guard_remat.ll [opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction 2015-02-27 19:29:02 +00:00
stack-access.ll [ARM] Fix handling of thumb1 out-of-range frame offsets 2015-03-20 17:20:07 +00:00
stack-coloring-without-frame-ptr.ll Revert "Change memcpy/memset/memmove to have dest and source alignments." 2015-11-19 05:56:52 +00:00
stack-frame.ll
stm-merge.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
thumb-imm.ll
thumb-ldm.ll [opaque pointer type] Add textual IR support for explicit type parameter to gep operator 2015-03-13 18:20:45 +00:00
thumb-shrink-wrapping.ll [Thumb] Fix assembler error 'cannot honor width suffix pop {lr}' 2015-12-28 21:40:45 +00:00
trap.ll
triple.ll
tst_teq.ll
unord.ll
vargs.ll [ARM] Refactor the prologue/epilogue emission to be more robust. 2015-07-20 21:42:14 +00:00