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Revision tags: llvmorg-21-init, llvmorg-19.1.7, llvmorg-19.1.6, llvmorg-19.1.5, llvmorg-19.1.4, llvmorg-19.1.3, llvmorg-19.1.2, llvmorg-19.1.1, llvmorg-19.1.0 |
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| #
b7e51b4f |
| 16-Sep-2024 |
Nikita Popov <npopov@redhat.com> |
[IPSCCP] Infer attributes on arguments (#107114)
During inter-procedural SCCP, also infer attributes on arguments, not
just return values. This allows other non-interprocedural passes to make
use
[IPSCCP] Infer attributes on arguments (#107114)
During inter-procedural SCCP, also infer attributes on arguments, not
just return values. This allows other non-interprocedural passes to make
use of the information later.
show more ...
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Revision tags: llvmorg-19.1.0-rc4, llvmorg-19.1.0-rc3, llvmorg-19.1.0-rc2, llvmorg-19.1.0-rc1, llvmorg-20-init |
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| #
16bb8c16 |
| 25-Jun-2024 |
Nikita Popov <npopov@redhat.com> |
[SCCP] Use poison instead of undef when zapping returns
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Revision tags: llvmorg-18.1.8, llvmorg-18.1.7 |
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| #
deab451e |
| 04-Jun-2024 |
Nikita Popov <npopov@redhat.com> |
[IR] Remove support for icmp and fcmp constant expressions (#93038)
Remove support for the icmp and fcmp constant expressions.
This is part of:
https://discourse.llvm.org/t/rfc-remove-most-const
[IR] Remove support for icmp and fcmp constant expressions (#93038)
Remove support for the icmp and fcmp constant expressions.
This is part of:
https://discourse.llvm.org/t/rfc-remove-most-constant-expressions/63179
As usual, many of the updated tests will no longer test what they were
originally intended to -- this is hard to preserve when constant
expressions get removed, and in many cases just impossible as the
existence of a specific kind of constant expression was the cause of the
issue in the first place.
show more ...
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Revision tags: llvmorg-18.1.6, llvmorg-18.1.5, llvmorg-18.1.4, llvmorg-18.1.3, llvmorg-18.1.2, llvmorg-18.1.1, llvmorg-18.1.0, llvmorg-18.1.0-rc4, llvmorg-18.1.0-rc3, llvmorg-18.1.0-rc2, llvmorg-18.1.0-rc1, llvmorg-19-init, llvmorg-17.0.6, llvmorg-17.0.5, llvmorg-17.0.4, llvmorg-17.0.3, llvmorg-17.0.2, llvmorg-17.0.1, llvmorg-17.0.0, llvmorg-17.0.0-rc4, llvmorg-17.0.0-rc3, llvmorg-17.0.0-rc2, llvmorg-17.0.0-rc1, llvmorg-18-init, llvmorg-16.0.6, llvmorg-16.0.5, llvmorg-16.0.4, llvmorg-16.0.3, llvmorg-16.0.2, llvmorg-16.0.1, llvmorg-16.0.0, llvmorg-16.0.0-rc4, llvmorg-16.0.0-rc3, llvmorg-16.0.0-rc2, llvmorg-16.0.0-rc1 |
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| #
72121a20 |
| 27-Jan-2023 |
Florian Hahn <flo@fhahn.com> |
[SCCP] Use range info to prove AddInst has NSW flag.
This patch updates SCCP to use the value ranges of AddInst operands to
try to prove the AddInst does not overflow in the signed sense and
adds th
[SCCP] Use range info to prove AddInst has NSW flag.
This patch updates SCCP to use the value ranges of AddInst operands to
try to prove the AddInst does not overflow in the signed sense and
adds the NSW flag. The reasoning is done with
makeGuaranteedNoWrapRegion (thanks @nikic for point it out!).
Follow-ups will include extending this to more
OverflowingBinaryOperators.
Depends on D142387.
Reviewed By: nikic
Differential Revision: https://reviews.llvm.org/D142390
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| #
cdeaf5f2 |
| 26-Jan-2023 |
Florian Hahn <flo@fhahn.com> |
Recommit "[SCCP] Use range info to prove AddInst has NUW flag."
This reverts commit 531756b9544b3e164b9ab998292fce3ebbc7c746.
The recommitted version fixes a crash when one of the operands is a
con
Recommit "[SCCP] Use range info to prove AddInst has NUW flag."
This reverts commit 531756b9544b3e164b9ab998292fce3ebbc7c746.
The recommitted version fixes a crash when one of the operands is a
constant other than a ConstantInt. Test for that case have been added
in 5b16cd97b8e1c273.
It splits off the new logic into a separate function because setting the
flags is quite different compared to the other cases handled in replaceSignedInst
which all require replacing an existing instruction.
It also guards makeGuaranteedNoWrapRegion by `if (!Inst.hasNoUnsignedWrap())`
as discussed in the review.
Fixes #60280.
Fixes #60278.
Original message:
This patch updates SCCP to use the value ranges of AddInst operands to
try to prove the AddInst does not overflow in the unsigned sense and
adds the NUW flag. The reasoning is done with
makeGuaranteedNoWrapRegion (thanks @nikic for point it out!).
Follow-ups will include adding NSW and extension to more
OverflowingBinaryOperators.
Reviewed By: nikic
Differential Revision: https://reviews.llvm.org/D142387
show more ...
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| #
531756b9 |
| 25-Jan-2023 |
Florian Hahn <flo@fhahn.com> |
Revert "Recommit "[SCCP] Use range info to prove AddInst has NUW flag.""
This reverts commit 366e1faa2fffd5b2284e25b09b6a26bcd2aca2b7.
It looks like this exposes another set of crashes on the build
Revert "Recommit "[SCCP] Use range info to prove AddInst has NUW flag.""
This reverts commit 366e1faa2fffd5b2284e25b09b6a26bcd2aca2b7.
It looks like this exposes another set of crashes on the buildbots.
Revert while I investigate.
show more ...
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| #
366e1faa |
| 25-Jan-2023 |
Florian Hahn <flo@fhahn.com> |
Recommit "[SCCP] Use range info to prove AddInst has NUW flag."
The recommitted version fixes a crash when one of the operands is a
constant other than a ConstantInt. Test for that case have been ad
Recommit "[SCCP] Use range info to prove AddInst has NUW flag."
The recommitted version fixes a crash when one of the operands is a
constant other than a ConstantInt. Test for that case have been added
in 5b16cd97b8e1c273.
It splits off the new logic into a separate function because setting the
flags is quite different compared to the other cases handled in replaceSignedInst
which all require replacing an existing instruction. Instructions are
now refined before any replacements are done, which has the advantage
that we should have lattice values for all operands (fixing the crashes
and simplifies the logic) and also allows optimizing more cases where one
of the operands also gets replaced (see improvements in
@sge_with_sext_to_zext_conversion).
It also guards makeGuaranteedNoWrapRegion by `if (!Inst.hasNoUnsignedWrap())`
as discussed in the review.
Fixes #60280.
Fixes #60278.
Original message:
This patch updates SCCP to use the value ranges of AddInst operands to
try to prove the AddInst does not overflow in the unsigned sense and
adds the NUW flag. The reasoning is done with
makeGuaranteedNoWrapRegion (thanks @nikic for point it out!).
Follow-ups will include adding NSW and extension to more
OverflowingBinaryOperators.
Reviewed By: nikic
Differential Revision: https://reviews.llvm.org/D142387
show more ...
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Revision tags: llvmorg-17-init |
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| #
c9401f2e |
| 25-Jan-2023 |
Douglas Yung <douglas.yung@sony.com> |
Revert "[SCCP] Use range info to prove AddInst has NUW flag."
This reverts commit de122cb920080fd9e24b2777114271fbef932d5e.
This change causes assertion failures in many of our internal tests.
I ha
Revert "[SCCP] Use range info to prove AddInst has NUW flag."
This reverts commit de122cb920080fd9e24b2777114271fbef932d5e.
This change causes assertion failures in many of our internal tests.
I have filed #60280 for this issue.
show more ...
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| #
de122cb9 |
| 24-Jan-2023 |
Florian Hahn <flo@fhahn.com> |
[SCCP] Use range info to prove AddInst has NUW flag.
This patch updates SCCP to use the value ranges of AddInst operands to
try to prove the AddInst does not overflow in the unsigned sense and
adds
[SCCP] Use range info to prove AddInst has NUW flag.
This patch updates SCCP to use the value ranges of AddInst operands to
try to prove the AddInst does not overflow in the unsigned sense and
adds the NUW flag. The reasoning is done with
makeGuaranteedNoWrapRegion (thanks @nikic for point it out!).
Follow-ups will include adding NSW and extension to more
OverflowingBinaryOperators.
Reviewed By: nikic
Differential Revision: https://reviews.llvm.org/D142387
show more ...
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| #
5c09afe7 |
| 23-Jan-2023 |
Florian Hahn <flo@fhahn.com> |
[SCCP] Auto-generate check lines for ip-ranges-select.ll.
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Revision tags: llvmorg-15.0.7, llvmorg-15.0.6, llvmorg-15.0.5, llvmorg-15.0.4 |
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| #
0991da36 |
| 01-Nov-2022 |
Nikita Popov <npopov@redhat.com> |
[SCCP] Convert tests to opaque pointers (NFC)
Conversion was performed using
https://gist.github.com/nikic/98357b71fd67756b0f064c9517b62a34
plus manual (but uninteresting) fixup.
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Revision tags: llvmorg-15.0.3, working, llvmorg-15.0.2, llvmorg-15.0.1, llvmorg-15.0.0, llvmorg-15.0.0-rc3, llvmorg-15.0.0-rc2, llvmorg-15.0.0-rc1, llvmorg-16-init, llvmorg-14.0.6, llvmorg-14.0.5, llvmorg-14.0.4, llvmorg-14.0.3, llvmorg-14.0.2, llvmorg-14.0.1, llvmorg-14.0.0, llvmorg-14.0.0-rc4, llvmorg-14.0.0-rc3, llvmorg-14.0.0-rc2, llvmorg-14.0.0-rc1, llvmorg-15-init, llvmorg-13.0.1, llvmorg-13.0.1-rc3, llvmorg-13.0.1-rc2, llvmorg-13.0.1-rc1 |
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| #
8ebb3eac |
| 18-Nov-2021 |
Bjorn Pettersson <bjorn.a.pettersson@ericsson.com> |
[test] Use -passes syntax when specifying pipeline in some more tests
The legacy PM is deprecated, so update a bunch of lit tests running
opt to use the new PM syntax when specifying the pipeline.
I
[test] Use -passes syntax when specifying pipeline in some more tests
The legacy PM is deprecated, so update a bunch of lit tests running
opt to use the new PM syntax when specifying the pipeline.
In this patch focus has been put on test cases for ConstantMerge,
ConstraintElimination, CorrelatedValuePropagation, GlobalDCE,
GlobalOpt, SCCP, TailCallElim and PredicateInfo.
Differential Revision: https://reviews.llvm.org/D114516
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Revision tags: llvmorg-13.0.0, llvmorg-13.0.0-rc4, llvmorg-13.0.0-rc3, llvmorg-13.0.0-rc2, llvmorg-13.0.0-rc1, llvmorg-14-init, llvmorg-12.0.1, llvmorg-12.0.1-rc4, llvmorg-12.0.1-rc3, llvmorg-12.0.1-rc2, llvmorg-12.0.1-rc1, llvmorg-12.0.0, llvmorg-12.0.0-rc5, llvmorg-12.0.0-rc4, llvmorg-12.0.0-rc3, llvmorg-12.0.0-rc2, llvmorg-11.1.0, llvmorg-11.1.0-rc3, llvmorg-12.0.0-rc1, llvmorg-13-init, llvmorg-11.1.0-rc2, llvmorg-11.1.0-rc1, llvmorg-11.0.1, llvmorg-11.0.1-rc2, llvmorg-11.0.1-rc1 |
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| #
95bda510 |
| 20-Oct-2020 |
Shimin Cui <scui@ca.ibm.com> |
[ConstantFold] Fold the comparison of bitcasted global values
This is to simplify icmp instructions in the form like:
%cmp = icmp eq i32 (i8*, i8*)* bitcast (i32 (i32**, i32**)* @f32 to i32
%(i8*,
[ConstantFold] Fold the comparison of bitcasted global values
This is to simplify icmp instructions in the form like:
%cmp = icmp eq i32 (i8*, i8*)* bitcast (i32 (i32**, i32**)* @f32 to i32
%(i8*, i8*)), bitcast (i32 (i64**, i64**) @f64 to i32 (i8*, i8*)*)
Here @f32 and @f64 are two functions.
Differential Revision: https://reviews.llvm.org/D87850
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Revision tags: llvmorg-11.0.0, llvmorg-11.0.0-rc6, llvmorg-11.0.0-rc5, llvmorg-11.0.0-rc4, llvmorg-11.0.0-rc3, llvmorg-11.0.0-rc2, llvmorg-11.0.0-rc1, llvmorg-12-init, llvmorg-10.0.1, llvmorg-10.0.1-rc4, llvmorg-10.0.1-rc3, llvmorg-10.0.1-rc2, llvmorg-10.0.1-rc1, llvmorg-10.0.0, llvmorg-10.0.0-rc6, llvmorg-10.0.0-rc5 |
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| #
5672ae8d |
| 18-Mar-2020 |
Florian Hahn <flo@fhahn.com> |
[SCCP] Use constant ranges for select, if cond is overdefined.
For selects with an unknown condition, we can approximate the result by
merging the state of both options. This automatically takes car
[SCCP] Use constant ranges for select, if cond is overdefined.
For selects with an unknown condition, we can approximate the result by
merging the state of both options. This automatically takes care of
the case where on operand is undef.
Reviewers: davide, efriedma, mssimpso
Reviewed By: efriedma
Differential Revision: https://reviews.llvm.org/D71935
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| #
1d6f919d |
| 13-Mar-2020 |
Florian Hahn <flo@fhahn.com> |
[SCCP] Explicitly mark values as overdefined (NFC).
This was part of D60582 but can be committed separately.
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