Evan Cheng 94202018c5 Fix live variables issues: ...

1. If part of a register is re-defined, an implicit kill and an implicit def are added to denote read / mod / write. However, this should only be necessary if the register is actually read later. This is a performance issue.
2. If a sub-register is being defined, and it doesn't have a previous use, do not add a implicit kill to the last use of a super-register:
   = EAX, AX<imp-use,kill>
...
AX =
In this case, EAX is live but AX is killed, this is wrong and will cause the coalescer to do bad things.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48521 91177308-0d34-0410-b5e6-96231b3b80d8

2008-03-19 00:52:20 +00:00

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2004-11-29-ShrCrash.ll

upgrade this test

2008-03-09 00:32:10 +00:00

2004-11-30-shift-crash.ll

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2004-11-30-shr-var-crash.ll

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2004-12-12-ZeroSizeCommon.ll

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2005-01-14-SetSelectCrash.ll

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2005-01-14-UndefLong.ll

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2005-08-12-rlwimi-crash.ll

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2005-09-02-LegalizeDuplicatesCalls.ll

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2005-10-08-ArithmeticRotate.ll

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2005-11-30-vastart-crash.ll

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2006-01-11-darwin-fp-argument.ll

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2006-01-20-ShiftPartsCrash.ll

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2006-04-01-FloatDoubleExtend.ll

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2006-04-05-splat-ish.ll

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2006-04-19-vmaddfp-crash.ll

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2006-05-12-rlwimi-crash.ll

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2006-07-07-ComputeMaskedBits.ll

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2006-07-19-stwbrx-crash.ll

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2006-08-11-RetVector.ll

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2006-08-15-SelectionCrash.ll

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2006-09-28-shift_64.ll

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2006-10-11-combiner-aa-regression.ll

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2006-10-13-Miscompile.ll

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2006-10-17-brcc-miscompile.ll

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2006-10-17-ppc64-alloca.ll

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2006-11-10-DAGCombineMiscompile.ll

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2006-11-29-AltivecFPSplat.ll

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2006-12-07-LargeAlloca.ll

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2006-12-07-SelectCrash.ll

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2007-01-04-ArgExtension.ll

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2007-01-15-AsmDialect.ll

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2007-01-29-lbrx-asm.ll

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2007-01-31-InlineAsmAddrMode.ll

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2007-02-16-AlignPacked.ll

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2007-02-16-InlineAsmNConstraint.ll

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2007-02-23-lr-saved-twice.ll

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2007-03-24-cntlzd.ll

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2007-03-30-SpillerCrash.ll

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2007-04-24-InlineAsm-I-Modifier.ll

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2007-04-30-InlineAsmEarlyClobber.ll

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2007-05-03-InlineAsm-S-Constraint.ll

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2007-05-14-InlineAsmSelectCrash.ll

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2007-05-22-tailmerge-3.ll

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2007-05-30-dagcombine-miscomp.ll

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2007-06-28-BCCISelBug.ll

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2007-08-04-CoalescerAssert.ll

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2007-09-04-AltivecDST.ll

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2007-09-07-LoadStoreIdxForms.ll

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2007-09-08-unaligned.ll

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2007-09-11-RegCoalescerAssert.ll

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2007-09-12-LiveIntervalsAssert.ll

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2007-10-16-InlineAsmFrameOffset.ll

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2007-10-18-PtrArithmetic.ll

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2007-10-21-LocalRegAllocAssert2.ll

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2007-10-21-LocalRegAllocAssert.ll

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2007-11-04-CoalescerCrash.ll

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2007-11-16-landingpad-split.ll

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2007-11-19-VectorSplitting.ll

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2008-01-25-EmptyFunction.ll

Add target triples to these so they don't fail on linux.

2008-01-29 06:26:07 +00:00

2008-02-05-LiveIntervalsAssert.ll

If a vr is already marked alive in a bb, then it has PHI uses that are visited earlier, then it is not killed in the def block (i.e. not dead).

2008-02-05 20:04:18 +00:00

2008-02-09-LocalRegAllocAssert.ll

Determine whether a spill kills the register it's spilling before insertion rather than trying to undo the kill marker afterwards.

2008-02-11 08:30:52 +00:00

2008-03-05-RegScavengerAssert.ll

Update llc flags for PPC register scavenger.

2008-03-10 22:59:08 +00:00

2008-03-06-KillInfo.ll

Update llc flags for PPC register scavenger.

2008-03-10 22:59:08 +00:00

2008-03-17-RegScavengerCrash.ll

Rewrite code that propagate isDead information after a dead copy is coalesced. This remove some ugly spaghetti code and fixed a number of subtle bugs.

2008-03-18 08:26:47 +00:00

2008-03-18-RegScavengerAssert.ll

Fix live variables issues:

2008-03-19 00:52:20 +00:00

addc.ll

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addi-reassoc.ll

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align.ll

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and_add.ll

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and_sext.ll

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and_sra.ll

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and-branch.ll

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and-elim.ll

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and-imm.ll

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big-endian-actual-args.ll

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big-endian-call-result.ll

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big-endian-formal-args.ll

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branch-opt.ll

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bswap-load-store.ll

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buildvec_canonicalize.ll

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calls.ll

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cmp-cmp.ll

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compare-duplicate.ll

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compare-fcmp-ord.ll

remove darwin/i386 t-t

2008-01-08 06:52:51 +00:00

compare-simm.ll

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constants.ll

Remove llvm-upgrade and update tests.

2008-02-19 08:07:33 +00:00

cttz.ll

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2008-02-19 08:07:33 +00:00

darwin-labels.ll

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2008-02-19 08:07:33 +00:00

dg.exp

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div-2.ll

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2008-02-19 08:07:33 +00:00

eqv-andc-orc-nor.ll

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2008-02-19 08:07:33 +00:00

extsh.ll

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2008-02-19 08:07:33 +00:00

fabs.ll

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fma.ll

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fnabs.ll

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2008-02-19 08:07:33 +00:00

fneg.ll

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fnegsel.ll

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2008-02-19 08:07:33 +00:00

fold-li.ll

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2008-02-19 08:07:33 +00:00

fp_to_uint.ll

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2008-02-19 08:07:33 +00:00

fp-branch.ll

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2008-02-19 08:07:33 +00:00

fp-int-fp.ll

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2008-02-19 08:07:33 +00:00

fpcopy.ll

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2008-02-19 08:07:33 +00:00

Frames-alloca.ll

Update llc flags for PPC register scavenger.

2008-03-10 22:59:08 +00:00

Frames-large.ll

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Frames-leaf.ll

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Frames-small.ll

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frounds.ll

Really feed llvm-as with the testcase, do not let it read from stdin. This fixes the hangs seen on solaris10.

2008-02-26 13:37:13 +00:00

fsqrt.ll

Remove llvm-upgrade and update tests.

2008-02-19 08:07:33 +00:00

hello.ll

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i64_fp.ll

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2008-02-19 08:07:33 +00:00

iabs.ll

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illegal-element-type.ll

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inlineasm-copy.ll

Remove llvm-upgrade and update tests.

2008-02-19 08:07:33 +00:00

int-fp-conv-0.ll

Generalize ExpandIntToFP to handle the case where the operand is legal

2008-03-11 01:59:03 +00:00

int-fp-conv-1.ll

Generalize ExpandIntToFP to handle the case where the operand is legal

2008-03-11 01:59:03 +00:00

invalid-memcpy.ll

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inverted-bool-compares.ll

Remove llvm-upgrade and update tests.

2008-02-19 08:07:33 +00:00

ispositive.ll

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itofp128.ll

Implement more support for fp-to-i128 and i128-to-fp conversions.

2008-03-10 23:03:31 +00:00

LargeAbsoluteAddr.ll

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lha.ll

Remove llvm-upgrade and update tests.

2008-02-19 08:07:33 +00:00

load-constant-addr.ll

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2008-02-19 08:07:33 +00:00

long-compare.ll

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longdbl-truncate.ll

add testcase for regression

2008-01-16 18:03:52 +00:00

mask64.ll

Don't hard-code the mask size to be 32, which is incorrect on ppc64

2008-02-27 21:12:32 +00:00

mem_update.ll

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2008-02-19 08:07:33 +00:00

mem-rr-addr-mode.ll

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2008-02-19 08:07:33 +00:00

mul-neg-power-2.ll

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2008-02-19 08:07:33 +00:00

mulhs.ll

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2008-02-19 08:07:33 +00:00

neg.ll

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2008-02-19 08:07:33 +00:00

no-dead-strip.ll

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or-addressing-mode.ll

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2008-02-19 08:07:33 +00:00

ppcf128-1-opt.ll

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ppcf128-1.ll

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ppcf128-2.ll

More APInt-ification.

2008-03-13 22:13:53 +00:00

ppcf128-3.ll

Make conversions of i8/i16 to ppcf128 work.

2008-03-18 17:28:38 +00:00

reg-coalesce-simple.ll

Remove llvm-upgrade and update tests.

2008-02-19 08:07:33 +00:00

retaddr.ll

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return-val-i128.ll

Add support for calls with i128 return values on ppc64.

2008-03-08 00:19:12 +00:00

rlwimi2.ll

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2008-02-19 08:07:33 +00:00

rlwimi3.ll

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2008-02-19 08:07:33 +00:00

rlwimi-commute.ll

Evan implemented this.

2008-03-02 17:56:29 +00:00

rlwimi.ll

Remove llvm-upgrade and update tests.

2008-02-19 08:07:33 +00:00

rlwinm2.ll

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rlwinm.ll

Remove llvm-upgrade and update tests.

2008-02-19 08:07:33 +00:00

rotl-2.ll

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rotl-64.ll

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rotl.ll

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select_lt0.ll

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2008-02-19 08:07:33 +00:00

setcc_no_zext.ll

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2008-02-19 08:07:33 +00:00

seteq-0.ll

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2008-02-19 08:07:33 +00:00

shift128.ll

Add support for lowering 128-bit shifts on ppc64.

2008-03-07 20:36:53 +00:00

shl_elim.ll

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shl_sext.ll

Remove llvm-upgrade and update tests.

2008-02-19 08:07:33 +00:00

sign_ext_inreg1.ll

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small-arguments.ll

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stfiwx-2.ll

Fix a latent bug exposed by my truncstore patch. We compiled stfiwx-2.ll to:

2008-01-18 16:54:56 +00:00

stfiwx.ll

Remove llvm-upgrade and update tests.

2008-02-19 08:07:33 +00:00

store-load-fwd.ll

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subc.ll

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2008-02-19 08:07:33 +00:00

unsafe-math.ll

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vcmp-fold.ll

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2008-02-19 08:07:33 +00:00

vec_br_cmp.ll

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vec_call.ll

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2008-02-19 08:07:33 +00:00

vec_constants.ll

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2008-02-19 08:07:33 +00:00

vec_fneg.ll

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vec_insert.ll

Add testcase for recent legalizer change

2008-02-13 06:48:40 +00:00

vec_misaligned.ll

New test for misaligned Altivec laod/store.

2008-02-27 23:14:50 +00:00

vec_mul.ll

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2008-02-19 08:07:33 +00:00

vec_perf_shuffle.ll

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vec_shuffle.ll

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vec_spat.ll

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vec_vrsave.ll

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vec_zero.ll

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vector-identity-shuffle.ll

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vector.ll

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2008-02-19 08:07:33 +00:00