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archived-llvm/test/Transforms/InstSimplify
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Sanjay Patel 347248d483 [InstSimplify] simplify power-of-2 (single bit set) sequences 
As discussed in PR42314:
https://bugs.llvm.org/show_bug.cgi?id=42314

Improving the canonicalization for these patterns:
rL363956
...means we should adjust/enhance the related simplification.

https://rise4fun.com/Alive/w1cp

  Name: isPow2 or zero
  %x = and i32 %xx, 2048
  %a = add i32 %x, -1
  %r = and i32 %a, %x
  =>
  %r = i32 0

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363997 91177308-0d34-0410-b5e6-96231b3b80d8
2019-06-20 22:55:28 +00:00
..
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
add-mask.ll
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add.ll
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addsub.ll
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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-zero.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
AndOrXor.ll
[InstSimplify] simplify power-of-2 (single bit set) sequences
2019-06-20 22:55:28 +00:00
assume.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
bitcast-vector-fold.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
bitreverse-fold.ll
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2019-04-17 04:52:47 +00:00
bitreverse.ll
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2019-04-17 04:52:47 +00:00
bswap.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
call.ll
[InstSimplify] Fix addo/subo undef folds (PR42209)
2019-06-16 20:39:45 +00:00
cast-unsigned-icmp-cmp-0.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
cast.ll
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2019-04-17 04:52:47 +00:00
cmp_of_min_max.ll
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2019-04-17 04:52:47 +00:00
compare.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
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
dead-code-removal.ll
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2019-04-17 04:52:47 +00:00
div.ll
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2019-04-17 04:52:47 +00:00
exact-nsw-nuw.ll
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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
[InstSimplify] Add unary fneg to fsub 0.0, (fneg X) ==> X transform
2019-05-17 16:47:00 +00:00
fcmp-select.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
fdiv.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
floating-point-arithmetic.ll
[InstSimplify] Teach fsub -0.0, (fneg X) ==> X about unary fneg
2019-05-20 13:13:35 +00:00
floating-point-compare.ll
[InstSimplify] enhance fcmp fold with never-nan operand
2019-06-09 13:48:59 +00:00
fold-builtin-fma.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
fold-intrinsics.ll
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2019-04-17 04:52:47 +00:00
fp-nan.ll
Revert llvm-svn: 360807
2019-05-15 20:48:50 +00:00
fp-undef.ll
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2019-04-17 04:52:47 +00:00
gep.ll
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2019-04-17 04:52:47 +00:00
icmp-abs-nabs.ll
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icmp-bool-constant.ll
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icmp-constant.ll
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2019-04-17 04:52:47 +00:00
icmp-ranges.ll
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2019-04-17 04:52:47 +00:00
implies.ll
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2019-04-17 04:52:47 +00:00
insertelement.ll
[InstSimplify] fold insertelement-of-extractelement
2019-05-24 00:13:58 +00:00
known-never-nan.ll
[NFC][InstSimplify] Precommit new unary fneg test
2019-05-17 18:34:35 +00:00
known-non-zero.ll
Revert "[ValueTracking] Improve isKnowNonZero for Ints"
2019-05-08 14:50:01 +00:00
load-relative-32.ll
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2019-04-17 04:52:47 +00:00
load-relative.ll
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2019-04-17 04:52:47 +00:00
load.ll
[ConstantFolding] Fix assertion failure on non-power-of-two vector load.
2019-06-19 10:28:48 +00:00
log2-pow2-intrinsic.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
log10-pow10-intrinsic.ll
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log-exp-intrinsic.ll
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logic-of-fcmps.ll
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2019-04-17 04:52:47 +00:00
maxmin.ll
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mul.ll
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negate.ll
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2019-04-17 04:52:47 +00:00
noalias-ptr.ll
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or-icmps-same-ops.ll
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2019-04-17 04:52:47 +00:00
or.ll
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2019-04-17 04:52:47 +00:00
past-the-end.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
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
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ptr_diff.ll
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2019-04-17 04:52:47 +00:00
reassociate.ll
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rem.ll
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require-dominator.ll
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2019-04-17 04:52:47 +00:00
returned.ll
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2019-04-17 04:52:47 +00:00
round-intrinsics.ll
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2019-04-17 04:52:47 +00:00
saturating-add-sub.ll
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2019-04-17 04:52:47 +00:00
sdiv.ll
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2019-04-17 04:52:47 +00:00
select-and-cmp.ll
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2019-04-17 04:52:47 +00:00
select-implied.ll
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2019-04-17 04:52:47 +00:00
select-or-cmp.ll
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2019-04-17 04:52:47 +00:00
select.ll
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2019-04-17 04:52:47 +00:00
shift-128-kb.ll
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2019-04-17 04:52:47 +00:00
shift-knownbits.ll
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2019-04-17 04:52:47 +00:00
shift.ll
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2019-04-17 04:52:47 +00:00
shr-nop.ll
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2019-04-17 04:52:47 +00:00
shr-scalar-vector-consistency.ll
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2019-04-17 04:52:47 +00:00
shufflevector.ll
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2019-04-17 04:52:47 +00:00
signed-div-rem.ll
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2019-04-17 04:52:47 +00:00
simplify-nested-bitcast.ll
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2019-04-17 04:52:47 +00:00
srem.ll
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sub.ll
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2019-04-17 04:52:47 +00:00
undef.ll
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2019-04-17 04:52:47 +00:00
vec-cmp.ll
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2019-04-17 04:52:47 +00:00
vector_gep.ll
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2019-04-17 04:52:47 +00:00
vector_ptr_bitcast.ll
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2019-04-17 04:52:47 +00:00