0cbf003c78
Clang detects the GCC version from the libdir. However, modern GCC versions only include the major version in the libdir (something like lib/gcc/powerpc64le-linux-gnu/12/), not all version components. For this reason, even though the system has a supported libstdcxx, it will still fail the check against the 12.1.0 version requirement. Fix this by doing the same thing we do for patch versions: Assume that a missing minor version is larger than any specific version. To allow this to be tested, we need to fix two additional issues: First, the GCC toolchain directories used for testing need to contain a crtbegin.o file to be properly detected. The existing tests actually ended up using a 0.0.0 version, rather the intended one. Second, we also need to satisfy the glibc version check based on the dynamic linker. To do so, respect the --dyld-prefix argument and add the necessary file to the test toolchain directory. Differential Revision: https://reviews.llvm.org/D136258
19 lines
1.1 KiB
C++
19 lines
1.1 KiB
C++
// REQUIRES: powerpc-registered-target
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// RUN: %clang -### --driver-mode=g++ -target powerpc64le-linux-gnu %s \
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// RUN: --gcc-toolchain=%S/Inputs/powerpc64le-linux-gnu-tree/gcc-11.2.0 \
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// RUN: -mabi=ieeelongdouble -stdlib=libstdc++ 2>&1 | FileCheck %s
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// RUN: %clang -### --driver-mode=g++ -target powerpc64le-linux-gnu %s \
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// RUN: --gcc-toolchain=%S/Inputs/powerpc64le-linux-gnu-tree/gcc-12 \
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// RUN: --dyld-prefix=%S/Inputs/powerpc64le-linux-gnu-tree/gcc-12 \
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// RUN: -mabi=ieeelongdouble -stdlib=libstdc++ 2>&1 | \
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// RUN: FileCheck %s --check-prefix=NOWARN
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// RUN: %clang -### --driver-mode=g++ -target powerpc64le-linux-gnu %s \
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// RUN: -mabi=ieeelongdouble -stdlib=libc++ 2>&1 | FileCheck %s
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// RUN: %clang -### --driver-mode=g++ -target powerpc64le-linux-gnu %s\
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// RUN: -mabi=ieeelongdouble -stdlib=libc++ -Wno-unsupported-abi 2>&1 | \
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// RUN: FileCheck %s --check-prefix=NOWARN
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// CHECK: warning: float ABI 'ieeelongdouble' is not supported by current library
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// NOWARN-NOT: warning: float ABI 'ieeelongdouble' is not supported by current library
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long double foo(long double x) { return x; }
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