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llvm-mirror/test/Transforms/InstSimplify
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Sanjay Patel aa7efec9b3 [InstSimplify] peek through 'not' operand in logic-of-icmps fold 
This extends D78430 to solve cases like:
https://llvm.org/PR47858

There are still missed opportunities shown in the tests,
and as noted in the earlier patches, we have related
functionality in InstCombine, so we may want to extend
other folds in a similar way.

A semi-random sampling of test diff proofs in this patch:
https://rise4fun.com/Alive/sS4C
2020-10-25 11:13:30 -04:00
..
ConstProp
[AMDGPU] Add new llvm.amdgcn.fma.legacy intrinsic
2020-10-16 17:10:21 +01:00
2010-12-20-Boolean.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
2011-01-14-Thread.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
2011-02-01-Vector.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
2011-09-05-InsertExtractValue.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
2011-10-27-BinOpCrash.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
2011-11-23-MaskedBitsCrash.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
2013-04-19-ConstantFoldingCrash.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
abs_intrinsic.ll
[InstCombine] Fold abs of known negative operand
2020-09-08 20:14:35 +02:00
add-mask.ll
[ValueTracking] Add computeKnownBits DemandedElts support to masked add instructions (PR36319)
2020-03-18 21:50:56 +00:00
add.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
addsub.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
and-icmps-same-ops.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
and-or-icmp-min-max.ll
[InstSimplify] peek through 'not' operand in logic-of-icmps fold
2020-10-25 11:13:30 -04:00
and-or-icmp-nullptr.ll
[InstSimplify] fold and/or of compares with equality to min/max constant
2020-04-23 09:16:10 -04:00
and-or-icmp-zero.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
AndOrXor.ll
[InstSimplify] add tests for logic-of-icmp with min/max constant; NFC
2020-04-19 08:24:38 -04:00
assume_icmp.ll
[InstSimplify] Fold icmp with dominating assume
2020-07-03 18:53:58 +02:00
assume-non-zero.ll
[ValueTracking] isKnownNonZero() should take non-null-ness assumptions into consideration (PR43267)
2019-12-20 01:47:57 +03:00
bitcast-vector-fold.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
bitreverse-fold.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
bitreverse.ll
[ValueTracking] Add computeKnownBits DemandedElts support to EXTRACTELEMENT/OR/BSWAP/BITREVERSE instructions (PR36319)
2020-03-18 18:49:58 +00:00
bswap.ll
[ValueTracking] Add computeKnownBits DemandedElts support to EXTRACTELEMENT/OR/BSWAP/BITREVERSE instructions (PR36319)
2020-03-18 18:49:58 +00:00
call.ll
[InstSimplify] Extract abs intrinsic tests into separate file (NFC)
2020-08-12 22:28:46 +02:00
cast-unsigned-icmp-cmp-0.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
cast.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
cmp_ext.ll
[InstSimplify] Simplify comparison between zext(x) and sext(x)
2020-07-04 11:03:00 +02:00
cmp_of_min_max.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
compare.ll
[ValueTracking] add range limits for cttz
2020-10-23 08:43:45 -04:00
constantfold-add-nuw-allones-to-allones.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
constantfold-shl-nuw-C-to-C.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
constfold-constrained.ll
[FEnv] Constfold some unary constrained operations
2020-03-28 12:28:33 +07:00
dead-code-removal.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
distribute.ll
[InstSimplify] add tests for expandCommutativeBinOp; NFC
2020-07-29 23:21:39 +09:00
div-by-0-guard-before-smul_ov-not.ll
[InstSimplify] Drop leftover "division-by-zero guard" around @llvm.umul.with.overflow inverted overflow bit
2019-08-29 12:48:04 +00:00
div-by-0-guard-before-smul_ov.ll
[InstSimplify] Drop leftover "division-by-zero guard" around @llvm.umul.with.overflow overflow bit
2019-08-29 12:47:50 +00:00
div-by-0-guard-before-umul_ov-not.ll
[InstSimplify] Drop leftover "division-by-zero guard" around @llvm.umul.with.overflow inverted overflow bit
2019-08-29 12:48:04 +00:00
div-by-0-guard-before-umul_ov.ll
[InstSimplify] Drop leftover "division-by-zero guard" around @llvm.umul.with.overflow overflow bit
2019-08-29 12:47:50 +00:00
div.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
exact-nsw-nuw.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
extract-element.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
fast-math.ll
[ValueTracking] fix CannotBeNegativeZero() to disregard 'nsz' FMF
2020-05-05 16:04:59 -04:00
fcmp-select.ll
[InstSimplify] use FMF to improve fcmp+select fold
2019-11-04 08:29:56 -05:00
fdiv.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
floating-point-arithmetic.ll
[InstSimplify] add/move tests for fmin/fmax; NFC
2020-09-14 10:24:19 -04:00
floating-point-compare.ll
[ValueTracking] enhance isKnownNeverInfinity to understand sitofp
2020-09-27 08:40:31 -04:00
fminmax-folds.ll
[InstSimplify] fix fmin/fmax miscompile for partial undef vectors (PR47567)
2020-09-18 10:05:44 -04:00
fold-intrinsics.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
fp-nan.ll
[InstSimplify] simplify FP ops harder with FMF
2020-03-12 09:13:28 -04:00
fp-undef.ll
[InstSimplify] simplify FP ops harder with FMF (part 2)
2020-03-12 09:53:20 -04:00
freeze-noundef.ll
Add support for !noundef metatdata on loads
2020-10-17 13:50:10 +09:00
freeze.ll
[ValueTracking] Instruction::isBinaryOp should be used for constexprs
2020-07-26 21:48:51 +09:00
gep.ll
[SVE] Make ConstantFoldGetElementPtr work for scalable vectors of indices
2020-06-25 07:28:19 +01:00
icmp-abs-nabs.ll
[ValueTracking] When calculating known bits for integer abs, make sure we're looking at a negate and not just any instruction with the nsw flag set.
2019-08-07 18:28:16 +00:00
icmp-bool-constant.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
icmp-constant.ll
[InstSimplify] avoid crashing by trying to rem-by-zero
2020-08-06 16:06:31 -04:00
icmp-ranges.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
icmp.ll
[NFCI][InstSimplify] Add CHECK-LABEL to new icmp.ll test
2020-06-25 01:10:35 +03:00
implies.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
insertelement.ll
[InstSimplify] allow insertelement-with-undef fold if poison-safe
2020-05-01 10:34:29 -04:00
known-never-nan.ll
[FPEnv] Intrinsic llvm.roundeven
2020-05-26 19:24:58 +07:00
known-non-zero.ll
[ValueTracking] isKnownNonZero, computeKnownBits for freeze
2020-09-10 08:07:38 +09:00
load-relative-32.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
load-relative.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
load.ll
[AssumeBundles] add cannonicalisation to the assume builder
2020-06-19 10:32:26 +02:00
log2-pow2-intrinsic.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
log10-pow10-intrinsic.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
log-exp-intrinsic.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
logic-of-fcmps.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
maxmin_intrinsics.ll
[InstSimplify] Fold min/max based on dominating condition
2020-09-05 16:16:40 +02:00
maxmin.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
mul.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
negate.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
noalias-ptr.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
null-ptr-is-valid-attribute.ll
ValueTracking: Fix isKnownNonZero for non-0 null pointers for byval
2020-07-16 13:50:49 -04:00
null-ptr-is-valid.ll
ValueTracking: Fix isKnownNonZero for non-0 null pointers for byval
2020-07-16 13:50:49 -04:00
or-icmps-same-ops.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
or.ll
[InstSimplify] fix bug in matching or-with-not op (PR46083)
2020-06-03 13:44:29 -04:00
past-the-end.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
phi-cse.ll
[NFC][InstSimplify] Add a note to PHI CSE tests that they are all negative tests
2020-08-29 13:13:06 +03:00
phi.ll
[InstSimplify] add a phi test with 1 incoming value; NFC
2019-06-19 17:23:29 +00:00
pr28725.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
pr33957.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
ptr_diff.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
reassociate.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
redundant-null-check-in-uadd_with_overflow-of-nonnull-ptr.ll
[InstSimplify] Pass SimplifyQuery into simplifyUnsignedRangeCheck() and use it for isKnownNonZero()
2019-09-11 15:32:46 +00:00
rem.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
remove-dead-call.ll
[NewPM] Pin tests with -debug-pass to legacy PM
2020-09-22 17:54:25 -07:00
require-dominator.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
result-of-add-of-negative-is-non-zero-and-no-underflow.ll
[NFC][InstSimplify] Add some more tests for D67498/D67502
2019-09-13 17:58:24 +00:00
result-of-usub-by-nonzero-is-non-zero-and-no-overflow.ll
[InstSimplify] simplifyUnsignedRangeCheck(): handle more cases (PR43251)
2019-09-12 09:26:17 +00:00
result-of-usub-is-non-zero-and-no-overflow.ll
[InstSimplify] Handle more 'A </>/>=/<= B &&/|| (A - B) !=/== 0' patterns (PR43251)
2019-09-25 22:59:41 +00:00
returned.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
round-intrinsics.ll
[FPEnv] Intrinsic llvm.roundeven
2020-05-26 19:24:58 +07:00
saturating-add-sub.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
sdiv.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
select-and-cmp.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
select-implied.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
select-or-cmp.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
select.ll
[InstSimplify] Protect against more poison in SimplifyWithOpReplaced (PR47322)
2020-08-29 21:59:39 +02:00
shift-128-kb.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
shift-knownbits.ll
Reapply [InstSimplify] Remove known bits constant folding
2020-05-08 10:24:53 +02:00
shift.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
shr-nop.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
shr-scalar-vector-consistency.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
shufflevector.ll
[InstSimplify] fold splat of inserted constant to vector constant
2019-12-15 09:32:03 -05:00
signed-div-rem.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
simplify-nested-bitcast.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
srem.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
sub.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
undef.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
vec-cmp.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
vector_gep.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
vector_ptr_bitcast.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
vscale.ll
[InstSimplify] Simplify to vector constants when possible
2020-08-26 11:40:36 -07:00