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llvm-project/llvm/test/Transforms/InstSimplify
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Craig Topper 66c08430f6 [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. 
The matchSelectPattern code can match patterns like (x >= 0) ? x : -x
for absolute value. But it can also match ((x-y) >= 0) ? (x-y) : (y-x).
If the latter form was matched we can only use the nsw flag if its
set on both subtracts.

This match makes sure we're looking at the former case only.

Differential Revision: https://reviews.llvm.org/D65692

llvm-svn: 368195
2019-08-07 18:28:16 +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
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +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-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
[InstSimplify] remove quadratic time looping (PR42771)
2019-07-27 14:05:51 +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
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
bitreverse.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
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
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
cmp_of_min_max.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
compare.ll
[InstructionSimplify] Apply sext/trunc after pointer stripping
2019-07-16 01:03:06 +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
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
div-by-0-guard-before-smul_ov-not.ll
[InstSimplify][NFC] Tests for skipping 'div-by-0' checks before inverted @llvm.umul.with.overflow
2019-07-23 12:42:49 +00:00
div-by-0-guard-before-smul_ov.ll
[InstSimplify][NFC] Tests for skipping 'div-by-0' checks before @llvm.umul.with.overflow
2019-07-22 22:09:11 +00:00
div-by-0-guard-before-umul_ov-not.ll
[InstSimplify][NFC] Tests for skipping 'div-by-0' checks before inverted @llvm.umul.with.overflow
2019-07-23 12:42:49 +00:00
div-by-0-guard-before-umul_ov.ll
[InstSimplify][NFC] Tests for skipping 'div-by-0' checks before @llvm.umul.with.overflow
2019-07-22 22:09:11 +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
[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
Revert "Temporarily Revert "Add basic loop fusion pass.""
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
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
gep.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
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
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
icmp-ranges.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
implies.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
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
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
[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
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.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
or-icmps-same-ops.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
or.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
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
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
rem.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
require-dominator.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
returned.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
round-intrinsics.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
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
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
shift-128-kb.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
shift-knownbits.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
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
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
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