b55f7512a7
Extract Flang's runtime library to use the LLVM_ENABLE_RUNTIME mechanism. It will only become active when `LLVM_ENABLE_RUNTIMES=flang-rt` is used, which also changes the `FLANG_INCLUDE_RUNTIME` to `OFF` so the old runtime build rules do not conflict. This also means that unless `LLVM_ENABLE_RUNTIMES=flang-rt` is passed, nothing changes with the current build process. Motivation: * Consistency with LLVM's other runtime libraries (compiler-rt, libc, libcxx, openmp offload, ...) * Allows compiling the runtime for multiple targets at once using the LLVM_RUNTIME_TARGETS configuration options * Installs the runtime into the compiler's per-target resource directory so it can be automatically found even when cross-compiling Also see RFC discussion at https://discourse.llvm.org/t/rfc-use-llvm-enable-runtimes-for-flangs-runtime/80826
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/*
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This test makes sure that flang's runtime does not depend on the C++ runtime
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library. It tries to link this simple file against libflang_rt.runtime.a with
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a C compiler.
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UNSUPPORTED: system-windows
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UNSUPPORTED: offload-cuda
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RUN: %if system-aix %{ export OBJECT_MODE=64 %}
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RUN: %cc -std=c99 %s -I%include -L"%libdir" -lflang_rt.runtime -lm \
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RUN: %if system-aix %{-lpthread %}
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RUN: rm a.out
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*/
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#include "flang/Runtime/entry-names.h"
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#include <stdint.h>
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/*
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Manually add declarations for the runtime functions that we want to make sure
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we're testing. We can't include any headers directly since they likely contain
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C++ code that would explode here.
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*/
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struct EnvironmentDefaultList;
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struct Descriptor;
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double RTNAME(CpuTime)();
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void RTNAME(ProgramStart)(
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int, const char *[], const char *[], const struct EnvironmentDefaultList *);
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int32_t RTNAME(ArgumentCount)();
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int32_t RTNAME(GetCommandArgument)(int32_t, const struct Descriptor *,
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const struct Descriptor *, const struct Descriptor *);
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int32_t RTNAME(GetEnvVariable)();
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int64_t RTNAME(SystemClockCount)(int kind);
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int main() {
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double x = RTNAME(CpuTime)();
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RTNAME(ProgramStart)(0, 0, 0, 0);
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int32_t c = RTNAME(ArgumentCount)();
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int32_t v = RTNAME(GetCommandArgument)(0, 0, 0, 0);
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int32_t e = RTNAME(GetEnvVariable)("FOO", 0, 0);
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int64_t t = RTNAME(SystemClockCount)(8);
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return x + c + v + e;
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}
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