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Add Clang builtins for threads targets #494

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Add Clang builtins for threads targets #494

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021e8dc
Add Clang builtins for threads targets
abrown Oct 10, 2024
38ae65b
Add test using a compiler builtin
abrown Oct 17, 2024
24a7308
Switch test to use `__floatdidf`
abrown Oct 18, 2024
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8 changes: 6 additions & 2 deletions cmake/wasi-sdk-sysroot.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -93,10 +93,14 @@ add_custom_target(compiler-rt-post-build
COMMAND ${CMAKE_COMMAND} -E copy_directory
${clang_resource_dir}/include ${wasi_resource_dir}/include

# Copy the `lib/wasi` folder to `libc/wasi{p1,p2}` to ensure that those
# OS-strings also work for looking up the compiler-rt.a file.
# Copy the `lib/wasi` folder to `libc/wasi{p1,p2}{-threads}?` to ensure that
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# those OS-strings also work for looking up the compiler-rt.a file.
COMMAND ${CMAKE_COMMAND} -E copy_directory
${wasi_resource_dir}/lib/wasi ${wasi_resource_dir}/lib/wasi-threads
COMMAND ${CMAKE_COMMAND} -E copy_directory
${wasi_resource_dir}/lib/wasi ${wasi_resource_dir}/lib/wasip1
COMMAND ${CMAKE_COMMAND} -E copy_directory
${wasi_resource_dir}/lib/wasi ${wasi_resource_dir}/lib/wasip1-threads
COMMAND ${CMAKE_COMMAND} -E copy_directory
${wasi_resource_dir}/lib/wasi ${wasi_resource_dir}/lib/wasip2

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10 changes: 10 additions & 0 deletions tests/general/builtin-floatdidf.c
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@@ -0,0 +1,10 @@
// Primarily check that `libclang_rt.builtins-wasm32.a` functions are present
// and work as expected on all tested targets, not the builtin functionality.

#include <assert.h>

int main() {
double f = __floatdidf(0);
assert(f == 0.0);
return 0;
}
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