rs created this revision. rs added reviewers: SjoerdMeijer, john.brawn. Herald added subscribers: cfe-commits, danielkiss, kristof.beyls. Herald added a project: clang. rs requested review of this revision.
This is a follow-up from https://reviews.llvm.org/D61717. Where Richard described the issue with compiling arm_neon.h under -flax-vector-conversions=none. It looks like the example reproducer does actually work: echo '#include <arm_neon.h>' | clang -target arm64-linux-gnu -arch +neon -fsyntax-only -x c - -fno-lax-vector-conversions but was missing the -ffreestanding compiler option otherwise the compiler would select the system headers from /usr. However, arm-neon-header.c test was missing this target triple 'arm64-linux-gnu' so I've added it here. Repository: rG LLVM Github Monorepo https://reviews.llvm.org/D88546 Files: clang/test/Headers/arm-neon-header.c Index: clang/test/Headers/arm-neon-header.c =================================================================== --- clang/test/Headers/arm-neon-header.c +++ clang/test/Headers/arm-neon-header.c @@ -22,5 +22,6 @@ // RUN: %clang -fsyntax-only -Wall -Werror -ffreestanding --target=aarch64-none-eabi -march=armv8.2-a+fp16fml+crypto+dotprod -std=c11 -xc -flax-vector-conversions=none %s // RUN: %clang -fsyntax-only -Wall -Werror -ffreestanding --target=aarch64_be-none-eabi -march=armv8.2-a+fp16fml+crypto+dotprod -std=c11 -xc -flax-vector-conversions=none %s +// RUN: %clang -fsyntax-only -Wall -Werror -ffreestanding --target=arm64-linux-gnu -arch +neon -std=c11 -xc -flax-vector-conversions=none %s #include <arm_neon.h>
Index: clang/test/Headers/arm-neon-header.c =================================================================== --- clang/test/Headers/arm-neon-header.c +++ clang/test/Headers/arm-neon-header.c @@ -22,5 +22,6 @@ // RUN: %clang -fsyntax-only -Wall -Werror -ffreestanding --target=aarch64-none-eabi -march=armv8.2-a+fp16fml+crypto+dotprod -std=c11 -xc -flax-vector-conversions=none %s // RUN: %clang -fsyntax-only -Wall -Werror -ffreestanding --target=aarch64_be-none-eabi -march=armv8.2-a+fp16fml+crypto+dotprod -std=c11 -xc -flax-vector-conversions=none %s +// RUN: %clang -fsyntax-only -Wall -Werror -ffreestanding --target=arm64-linux-gnu -arch +neon -std=c11 -xc -flax-vector-conversions=none %s #include <arm_neon.h>
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