Author: Alex Xu (Hello71) Date: 2022-02-04T19:20:30-08:00 New Revision: 38449c98f3d33dffdaf7e1feeb9dfdcf63b5126b
URL: https://github.com/llvm/llvm-project/commit/38449c98f3d33dffdaf7e1feeb9dfdcf63b5126b DIFF: https://github.com/llvm/llvm-project/commit/38449c98f3d33dffdaf7e1feeb9dfdcf63b5126b.diff LOG: [Driver] Default to -fno-math-errno for musl musl does not set errno in math functions: https://wiki.musl-libc.org/mathematical-library.html, https://git.musl-libc.org/cgit/musl/tree/include/math.h?id=cfdfd5ea3ce14c6abf7fb22a531f3d99518b5a1b#n26. Reviewed By: srhines, MaskRay Differential Revision: https://reviews.llvm.org/D116753 Added: Modified: clang/lib/Driver/ToolChains/Linux.cpp clang/test/Driver/fast-math.c Removed: ################################################################################ diff --git a/clang/lib/Driver/ToolChains/Linux.cpp b/clang/lib/Driver/ToolChains/Linux.cpp index af74b108e04e..f85c04df4f6c 100644 --- a/clang/lib/Driver/ToolChains/Linux.cpp +++ b/clang/lib/Driver/ToolChains/Linux.cpp @@ -687,7 +687,7 @@ bool Linux::IsAArch64OutlineAtomicsDefault(const ArgList &Args) const { } bool Linux::IsMathErrnoDefault() const { - if (getTriple().isAndroid()) + if (getTriple().isAndroid() || getTriple().isMusl()) return false; return Generic_ELF::IsMathErrnoDefault(); } diff --git a/clang/test/Driver/fast-math.c b/clang/test/Driver/fast-math.c index a66e9d0eca17..36ea8ecb5298 100644 --- a/clang/test/Driver/fast-math.c +++ b/clang/test/Driver/fast-math.c @@ -119,6 +119,8 @@ // RUN: | FileCheck --check-prefix=CHECK-NO-MATH-ERRNO %s // RUN: %clang -### -target x86_64-linux-android -c %s 2>&1 \ // RUN: | FileCheck --check-prefix=CHECK-NO-MATH-ERRNO %s +// RUN: %clang -### -target x86_64-linux-musl -c %s 2>&1 \ +// RUN: | FileCheck --check-prefix=CHECK-NO-MATH-ERRNO %s // RUN: %clang -### -target amdgcn-amd-amdhsa -c %s 2>&1 \ // RUN: | FileCheck --check-prefix=CHECK-NO-MATH-ERRNO %s // RUN: %clang -### -target amdgcn-amd-amdpal -c %s 2>&1 \ _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
