[RISCV][compiler-rt] Small fixes for __riscv_feature_bits#100158
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[RISCV][compiler-rt] Small fixes for __riscv_feature_bits#100158
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Changes included: * Adding CONSTRUCTOR_ATTRIBUTE so that the static data is setup early on in process lifetime. This is required by gcc docs for __builtin_cpu_supports which we hope to implement in terms of this. * Move the length initialization outside of the #if defined(__linux__) block so that the length field always reflects the size of the structures even if non of the feature bits are non-zero. * Change the __riscv_vendor_feature_bits.length field to match the length of the actual structure. Note that this change has not been built or tested. I could not figure out how to get a working cross build for compiler-rt setup.
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After moving to cpu_model directory, compiler-rt could build successfully. |
preames
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Jul 23, 2024
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LGTM
JFYI, since this seems to be textually the same as the final iteration on my review, I'm going to treat you posting this as an approval on that one. I don't care which one lands. I'm about to run out for an errand, and if this hasn't landed by the time I take another look this afternoon I'll land one or the other.
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LLVM Buildbot has detected a new failure on builder Full details are available at: https://lab.llvm.org/buildbot/#/builders/66/builds/2033 Here is the relevant piece of the build log for the reference: |
yuxuanchen1997
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Jul 25, 2024
Summary: Changes included: - Adding CONSTRUCTOR_ATTRIBUTE so that the static data is setup early on in process lifetime. This is required by gcc docs for __builtin_cpu_supports which we hope to implement in terms of this. - Move the length initialization outside of the #if defined(linux) block so that the length field always reflects the size of the structures even if non of the feature bits are non-zero. - Change the __riscv_vendor_feature_bits.length field to match the length of the actual structure. Note: Copy from #99958 --------- Co-authored-by: Philip Reames <preames@rivosinc.com> Test Plan: Reviewers: Subscribers: Tasks: Tags: Differential Revision: https://phabricator.intern.facebook.com/D60250767
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Changes included:
Note: Copy from #99958