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[Clang][RISCV] Add test cases for intrinsics clz/ctz codegen when has extension zbb/xtheadbb
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Authored by Yunzezhu on Jun 6 2023, 2:28 AM.

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Summary

Add test cases for intrinsics clz/ctz when has extension zbb/xtheadbb to demonstrate future changes in codegen.

This patch helps demonstrate codegen changes made in https://reviews.llvm.org/D151867 .

	Time	Test
	430 ms	libcxx CI - C++26 > llvm-libc++-shared-cfg-in.llvm-libc++-shared-cfg-in::/home/libcxx-builder/.buildkite-agent/builds/google-libcxx-builder-223c08429ae4-1/llvm-project/libcxx-ci/build/generic-cxx26/test/libcxx/transitive_includes.gen.py/queue.sh.cpp
	300 ms	libcxx CI - C++26 > llvm-libc++-shared-cfg-in.llvm-libc++-shared-cfg-in::/home/libcxx-builder/.buildkite-agent/builds/google-libcxx-builder-223c08429ae4-1/llvm-project/libcxx-ci/build/generic-cxx26/test/libcxx/transitive_includes.gen.py/stack.sh.cpp

Yunzezhu requested review of this revision.Jun 6 2023, 2:28 AM

clang/test/CodeGen/RISCV/rvb-intrinsics/riscv64-xtheadbb.c
52	Should the return type be int to match __builtin_clzl?
clang/test/CodeGen/RISCV/rvb-intrinsics/riscv64-zbb.c
51	Should the return type be int to match __builtin_clzl