llvm-project/clang/test/Driver/print-libgcc-file-name-libg...

// Test that -print-libgcc-file-name correctly respects -rtlib=libgcc.

// REQUIRES: libgcc

// RUN: %clang -rtlib=libgcc -print-libgcc-file-name 2>&1 \
// RUN:   | FileCheck --check-prefix=CHECK-LIBGCC %s
// CHECK-LIBGCC: libgcc.a
[Driver] Make -print-libgcc-file-name print compiler-rt lib when used Make the -print-libgcc-file-name option print an appropriate compiler runtime library, that is libgcc.a if gcc runtime is used and an appropriate compiler-rt library if that runtime is used. The main use for this is to allow linking executables built with -nodefaultlibs (e.g. to avoid linking to the standard C++ library) to the compiler runtime library, e.g. using: clang++ ... -nodefaultlibs $(clang++ ... -print-libgcc-file-name) in which case currently a program built like this linked to the gcc runtime unconditionally. The patch fixes it to use compiler-rt libraries instead when compiler-rt is the active runtime. Differential Revision: https://reviews.llvm.org/D25338 llvm-svn: 283746 2016-10-10 20:23:40 +08:00			`// Test that -print-libgcc-file-name correctly respects -rtlib=libgcc.`

			`// REQUIRES: libgcc`

			`// RUN: %clang -rtlib=libgcc -print-libgcc-file-name 2>&1 \`
			`// RUN: \| FileCheck --check-prefix=CHECK-LIBGCC %s`
			`// CHECK-LIBGCC: libgcc.a`