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Revision tags: llvmorg-21-init, llvmorg-19.1.7, llvmorg-19.1.6 |
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462cb3cd |
| 05-Dec-2024 |
Nikita Popov <npopov@redhat.com> |
[InstCombine] Infer nusw + nneg -> nuw for getelementptr (#111144)
If the gep is nusw (usually via inbounds) and the offset is
non-negative, we can infer nuw.
Proof: https://alive2.llvm.org/ce/z
[InstCombine] Infer nusw + nneg -> nuw for getelementptr (#111144)
If the gep is nusw (usually via inbounds) and the offset is
non-negative, we can infer nuw.
Proof: https://alive2.llvm.org/ce/z/ihztLy
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Revision tags: llvmorg-19.1.5, llvmorg-19.1.4, llvmorg-19.1.3, llvmorg-19.1.2, llvmorg-19.1.1, llvmorg-19.1.0, llvmorg-19.1.0-rc4, llvmorg-19.1.0-rc3, llvmorg-19.1.0-rc2, llvmorg-19.1.0-rc1, llvmorg-20-init, llvmorg-18.1.8, llvmorg-18.1.7 |
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| #
8e8d2595 |
| 20-May-2024 |
Nikita Popov <npopov@redhat.com> |
[ConstantFolding] Canonicalize constexpr GEPs to i8 (#89872)
This patch canonicalizes constant expression GEPs to use i8 source
element type, aka ptradd. This is the ConstantFolding equivalent of t
[ConstantFolding] Canonicalize constexpr GEPs to i8 (#89872)
This patch canonicalizes constant expression GEPs to use i8 source
element type, aka ptradd. This is the ConstantFolding equivalent of the
InstCombine canonicalization introduced in #68882.
I believe all our optimizations working on constant expression GEPs
(like GlobalOpt etc) have already been switched to work on offsets, so I
don't expect any significant fallout from this change.
This is part of:
https://discourse.llvm.org/t/rfc-replacing-getelementptr-with-ptradd/68699
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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 |
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| #
78f88082 |
| 01-Feb-2023 |
Nikita Popov <npopov@redhat.com> |
[ConstantFold] Fix incorrect inbounds inference for [0 x T] GEPs
Previously all indices into [0 x T] arrays were considered in
range, which resulted in us incorrectly inferring inbounds for
all GEPs
[ConstantFold] Fix incorrect inbounds inference for [0 x T] GEPs
Previously all indices into [0 x T] arrays were considered in
range, which resulted in us incorrectly inferring inbounds for
all GEPs of that form. We should not consider them in range here,
and instead bail out of the rewriting logic (which would divide
by zero).
Do continue to consider 0 always in range, to avoid changing
behavior for zero-index GEPs.
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Revision tags: llvmorg-16.0.0-rc1, llvmorg-17-init, llvmorg-15.0.7, llvmorg-15.0.6, llvmorg-15.0.5, llvmorg-15.0.4, llvmorg-15.0.3, working, llvmorg-15.0.2 |
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| #
89274584 |
| 03-Oct-2022 |
Bjorn Pettersson <bjorn.a.pettersson@ericsson.com> |
[test][InstCombine] Update even more test cases to use opaque pointer
These tests cases were converted using the script at
https://gist.github.com/nikic/98357b71fd67756b0f064c9517b62a34.
Needed to
[test][InstCombine] Update even more test cases to use opaque pointer
These tests cases were converted using the script at
https://gist.github.com/nikic/98357b71fd67756b0f064c9517b62a34.
Needed to also re-run update_test_checks.py, otherwise some of them
would fail.
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Revision tags: llvmorg-15.0.1, llvmorg-15.0.0, llvmorg-15.0.0-rc3, llvmorg-15.0.0-rc2, llvmorg-15.0.0-rc1 |
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| #
65967708 |
| 27-Jul-2022 |
Martin Sebor <msebor@redhat.com> |
[InstCombine] Adjust snprintf folding of constant strings (PR #56598)
Reviewed By: efriedma
Differential Revision: https://reviews.llvm.org/D130494
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