llvm-6502/test/CodeGen/PowerPC
Hal Finkel 2741d2cfdf Cleanup trip-count finding for PPC CTR loops (and some bug fixes).
This cleans up the method used to find trip counts in order to form CTR loops on PPC.
This refactoring allows the pass to find loops which have a constant trip count but also
happen to end with a comparison to zero. This also adds explicit FIXMEs to mark two different
classes of loops that are currently ignored.

In addition, we now search through all potential induction operations instead of just the first.
Also, we check the predicate code on the conditional branch and abort the transformation if the
code is not EQ or NE, and we then make sure that the branch to be transformed matches the
condition register defined by the comparison (multiple possible comparisons will be considered).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158607 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-16 20:34:07 +00:00
..
2004-11-29-ShrCrash.ll
2004-11-30-shift-crash.ll
2004-11-30-shr-var-crash.ll
2004-12-12-ZeroSizeCommon.ll
2005-01-14-SetSelectCrash.ll
2005-01-14-UndefLong.ll
2005-08-12-rlwimi-crash.ll
2005-09-02-LegalizeDuplicatesCalls.ll
2005-10-08-ArithmeticRotate.ll
2005-11-30-vastart-crash.ll
2006-01-11-darwin-fp-argument.ll
2006-01-20-ShiftPartsCrash.ll
2006-04-01-FloatDoubleExtend.ll
2006-04-05-splat-ish.ll
2006-04-19-vmaddfp-crash.ll
2006-05-12-rlwimi-crash.ll
2006-07-07-ComputeMaskedBits.ll
2006-07-19-stwbrx-crash.ll
2006-08-11-RetVector.ll
2006-08-15-SelectionCrash.ll
2006-09-28-shift_64.ll
2006-10-13-Miscompile.ll
2006-10-17-brcc-miscompile.ll
2006-10-17-ppc64-alloca.ll
2006-11-10-DAGCombineMiscompile.ll
2006-11-29-AltivecFPSplat.ll
2006-12-07-LargeAlloca.ll
2006-12-07-SelectCrash.ll
2007-01-04-ArgExtension.ll
2007-01-15-AsmDialect.ll
2007-01-29-lbrx-asm.ll
2007-01-31-InlineAsmAddrMode.ll
2007-02-16-AlignPacked.ll
2007-02-16-InlineAsmNConstraint.ll
2007-02-23-lr-saved-twice.ll
2007-03-24-cntlzd.ll
2007-03-30-SpillerCrash.ll
2007-04-24-InlineAsm-I-Modifier.ll
2007-04-30-InlineAsmEarlyClobber.ll Don't run RAFast in the optimizing regalloc pipeline. 2012-06-08 23:15:12 +00:00
2007-05-03-InlineAsm-S-Constraint.ll
2007-05-14-InlineAsmSelectCrash.ll
2007-05-22-tailmerge-3.ll Enable tail merging on PPC. 2012-06-09 03:14:50 +00:00
2007-05-30-dagcombine-miscomp.ll
2007-06-28-BCCISelBug.ll
2007-08-04-CoalescerAssert.ll
2007-09-04-AltivecDST.ll
2007-09-07-LoadStoreIdxForms.ll
2007-09-08-unaligned.ll
2007-09-11-RegCoalescerAssert.ll
2007-09-12-LiveIntervalsAssert.ll
2007-10-16-InlineAsmFrameOffset.ll
2007-10-18-PtrArithmetic.ll
2007-10-21-LocalRegAllocAssert2.ll Don't run RAFast in the optimizing regalloc pipeline. 2012-06-08 23:15:12 +00:00
2007-10-21-LocalRegAllocAssert.ll Don't run RAFast in the optimizing regalloc pipeline. 2012-06-08 23:15:12 +00:00
2007-11-04-CoalescerCrash.ll
2007-11-16-landingpad-split.ll
2007-11-19-VectorSplitting.ll
2008-02-05-LiveIntervalsAssert.ll
2008-02-09-LocalRegAllocAssert.ll Don't run RAFast in the optimizing regalloc pipeline. 2012-06-08 23:15:12 +00:00
2008-03-05-RegScavengerAssert.ll
2008-03-17-RegScavengerCrash.ll
2008-03-18-RegScavengerAssert.ll
2008-03-24-AddressRegImm.ll
2008-03-24-CoalescerBug.ll
2008-03-26-CoalescerBug.ll
2008-04-10-LiveIntervalCrash.ll
2008-04-16-CoalescerBug.ll
2008-04-23-CoalescerCrash.ll
2008-05-01-ppc_fp128.ll
2008-06-19-LegalizerCrash.ll
2008-06-21-F128LoadStore.ll
2008-06-23-LiveVariablesCrash.ll
2008-07-10-SplatMiscompile.ll
2008-07-15-Bswap.ll
2008-07-15-Fabs.ll
2008-07-15-SignExtendInreg.ll
2008-07-17-Fneg.ll
2008-07-24-PPC64-CCBug.ll
2008-09-12-CoalescerBug.ll
2008-10-17-AsmMatchingOperands.ll
2008-10-28-f128-i32.ll
2008-10-28-UnprocessedNode.ll
2008-10-31-PPCF128Libcalls.ll
2008-12-02-LegalizeTypeAssert.ll
2008-12-12-EH.ll
2009-01-16-DeclareISelBug.ll
2009-03-17-LSRBug.ll
2009-05-28-LegalizeBRCC.ll
2009-07-16-InlineAsm-M-Operand.ll
2009-08-17-inline-asm-addr-mode-breakage.ll Enable ILP scheduling for all nodes by default on PPC. 2012-06-10 19:32:29 +00:00
2009-08-23-linkerprivate.ll
2009-09-18-carrybit.ll
2009-11-15-ProcImpDefsBug.ll
2009-11-25-ImpDefBug.ll
2010-02-04-EmptyGlobal.ll
2010-02-12-saveCR.ll
2010-03-09-indirect-call.ll Remove -join-physregs from the test suite. 2012-05-17 23:44:19 +00:00
2010-04-01-MachineCSEBug.ll
2010-04-07-DbgValueOtherTargets.ll
2010-05-03-retaddr1.ll
2010-10-11-Fast-Varargs.ll
2010-12-18-PPCStackRefs.ll
2011-12-05-NoSpillDupCR.ll Enable ILP scheduling for all nodes by default on PPC. 2012-06-10 19:32:29 +00:00
2011-12-06-SpillAndRestoreCR.ll
2011-12-08-DemandedBitsMiscompile.ll
a2-fp-basic.ll Add instruction itinerary for the PPC64 A2 core. 2012-04-01 19:22:40 +00:00
addc.ll
addi-reassoc.ll
align.ll
and_add.ll
and_sext.ll
and_sra.ll
and-branch.ll
and-elim.ll
and-imm.ll
atomic-1.ll
atomic-2.ll
Atomics-32.ll
Atomics-64.ll
available-externally.ll
big-endian-actual-args.ll
big-endian-call-result.ll
big-endian-formal-args.ll
bl8_elf_nop.ll
branch-opt.ll
bswap-load-store.ll
buildvec_canonicalize.ll
calls.ll
can-lower-ret.ll
cmp-cmp.ll
compare-duplicate.ll
compare-simm.ll
constants.ll
cr1eq.ll
cr_spilling.ll
ctrloop-reg.ll Enable PPC CTR loop formation by default. 2012-06-08 19:19:53 +00:00
ctrloop-s000.ll Cleanup trip-count finding for PPC CTR loops (and some bug fixes). 2012-06-16 20:34:07 +00:00
ctrloop-sums.ll Cleanup trip-count finding for PPC CTR loops (and some bug fixes). 2012-06-16 20:34:07 +00:00
ctrloops.ll Improve ext/trunc patterns on PPC64. 2012-06-09 22:10:19 +00:00
cttz.ll
darwin-labels.ll
dbg.ll
delete-node.ll
div-2.ll
empty-functions.ll
eqv-andc-orc-nor.ll
extsh.ll
fabs.ll
fma.ll
fnabs.ll
fneg.ll
fold-li.ll
fp_to_uint.ll
fp-branch.ll
fp-int-fp.ll
fpcopy.ll
Frames-alloca.ll
Frames-large.ll
Frames-leaf.ll
Frames-small.ll
frounds.ll
fsqrt.ll
hello.ll
hidden-vis-2.ll
hidden-vis.ll
i64_fp.ll
i128-and-beyond.ll
iabs.ll
illegal-element-type.ll
indirectbr.ll
inlineasm-copy.ll
int-fp-conv-0.ll
int-fp-conv-1.ll
inverted-bool-compares.ll
ispositive.ll
itofp128.ll
LargeAbsoluteAddr.ll
lha.ll
lit.local.cfg Continue cleanup of LIT, getting rid of the remaining artifacts from dejagnu 2012-03-25 09:02:19 +00:00
load-constant-addr.ll
long-compare.ll
longdbl-truncate.ll
lsr-postinc-pos.ll
mask64.ll
mem_update.ll Enable generating PPC pre-increment (r+imm) instructions by default. 2012-06-04 02:21:00 +00:00
mem-rr-addr-mode.ll
mul-neg-power-2.ll
mul-with-overflow.ll
mulhs.ll
mult-alt-generic-powerpc64.ll
mult-alt-generic-powerpc.ll
neg.ll
no-dead-strip.ll
or-addressing-mode.ll
ppc64-32bit-addic.ll
ppc64-crash.ll
ppc64-ind-call.ll X11/X2 loads around indirect calls on ppc64 should not be deleted. 2012-02-24 17:54:01 +00:00
ppc64-linux-func-size.ll Test the section specification. 2012-02-27 20:42:19 +00:00
ppc64-prefetch.ll Enable prefetch generation on PPC64. 2012-04-01 20:08:17 +00:00
ppc64-vaarg-int.ll Fix small-integer VAARG on SVR4 ABI PPC64. 2012-03-24 03:53:55 +00:00
ppc440-fp-basic.ll
ppc440-msync.ll
ppc-prologue.ll
ppc-vaarg-agg.ll Remove dead SD nodes after the combining pass. Fixes PR12201. 2012-04-16 03:33:22 +00:00
ppcf128-1-opt.ll
ppcf128-1.ll
ppcf128-2.ll
ppcf128-3.ll
ppcf128-4.ll
pr3711_widen_bit.ll
private.ll
reg-coalesce-simple.ll
retaddr.ll
return-val-i128.ll
rlwimi2.ll
rlwimi3.ll
rlwimi-commute.ll
rlwimi-keep-rsh.ll
rlwimi.ll
rlwinm2.ll
rlwinm.ll
rotl-2.ll
rotl-64.ll
rotl.ll
sections.ll
select_lt0.ll
select-cc.ll
setcc_no_zext.ll
seteq-0.ll
shift128.ll
shl_elim.ll
shl_sext.ll
sign_ext_inreg1.ll
small-arguments.ll
stack-protector.ll
stfiwx-2.ll
stfiwx.ll
store-load-fwd.ll
stubs.ll
stwu8.ll Enable generating PPC pre-increment (r+imm) instructions by default. 2012-06-04 02:21:00 +00:00
subc.ll
tailcall1-64.ll
tailcall1.ll
tailcallpic1.ll
tls.ll Implement local-exec TLS on PowerPC. 2012-06-04 17:36:38 +00:00
trampoline.ll
unsafe-math.ll
varargs.ll
vcmp-fold.ll
vec_auto_constant.ll
vec_br_cmp.ll
vec_buildvector_loadstore.ll Enable ILP scheduling for all nodes by default on PPC. 2012-06-10 19:32:29 +00:00
vec_call.ll
vec_constants.ll
vec_fneg.ll
vec_insert.ll
vec_misaligned.ll
vec_mul.ll
vec_perf_shuffle.ll
vec_shift.ll
vec_shuffle.ll
vec_splat_constant.ll
vec_splat.ll
vec_vrsave.ll
vec_zero.ll
vector-identity-shuffle.ll
vector.ll