beb06eb884
1. Fixed 2 DTLTO cache tests that failed on MacOS because input to grep command is different compared to Windows 2. Removed unneeded comments from dtlto-cache.ll
71 lines
2.6 KiB
Plaintext
71 lines
2.6 KiB
Plaintext
REQUIRES: x86-registered-target, ld.lld
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# This test verifies that a cache populated by an in-process ThinLTO codegen is
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# not reused by an out-of-process (DTLTO) codegen and vice versa.
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RUN: rm -rf %t && split-file %s %t && cd %t
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# Compile source files into bitcode files.
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RUN: %clang -O2 --target=x86_64-linux-gnu -flto=thin -c foo.c main.c
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# Execute the linker and check that in-process ThinLTO cache is populated.
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RUN: %clang -O2 --target=x86_64-linux-gnu -Werror -flto=thin -fuse-ld=lld -nostdlib -e main \
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RUN: main.o foo.o -o main.elf \
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RUN: -Wl,--thinlto-cache-dir=cache.dir \
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RUN: -Wl,--save-temps
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RUN: ls cache.dir/llvmcache.timestamp
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RUN: ls cache.dir | count 3
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# Execute the linker and check that out-of-process codegen (DTLTO) adds
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# additional entries to the cache, implying that in-process and
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# out-of-process codegens do not share cache entries.
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RUN: %clang -O2 --target=x86_64-linux-gnu -Werror -flto=thin -fuse-ld=lld -nostdlib -e main \
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RUN: main.o foo.o -o populate1.elf \
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RUN: -Wl,--thinlto-distributor=%python \
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RUN: -Wl,--thinlto-distributor-arg=%llvm_src_root/utils/dtlto/local.py \
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RUN: -Wl,--thinlto-remote-compiler=%clang \
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RUN: -Wl,--thinlto-cache-dir=cache.dir \
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RUN: -Wl,--save-temps
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# Check that there are two backend compilation jobs occurred.
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RUN: grep -wo args populate1.*.dist-file.json | wc -l | grep -qx "\s*3"
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RUN: ls cache.dir | count 5
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# Clean up cache directory.
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RUN: rm -rf cache.dir
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# Execute the linker and check that out-of-process (DTLTO) cache is populated.
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RUN: %clang -O2 --target=x86_64-linux-gnu -Werror -flto=thin -fuse-ld=lld -nostdlib -e main \
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RUN: main.o foo.o -o populate2.elf \
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RUN: -Wl,--thinlto-distributor=%python \
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RUN: -Wl,--thinlto-distributor-arg=%llvm_src_root/utils/dtlto/local.py \
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RUN: -Wl,--thinlto-remote-compiler=%clang \
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RUN: -Wl,--thinlto-cache-dir=cache.dir \
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RUN: -Wl,--save-temps
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# Check that there are two backend compilation jobs occurred.
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RUN: grep -wo args populate2.*.dist-file.json | wc -l | grep -qx "\s*3"
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RUN: ls cache.dir/llvmcache.timestamp
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RUN: ls cache.dir | count 3
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# Execute the linker and check that in-process codegen adds additional entries
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# to the cache, implying that in-process and out-of-process codegens do
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# not share cache entries.
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RUN: %clang -O2 --target=x86_64-linux-gnu -Werror -flto=thin -fuse-ld=lld -nostdlib -e main \
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RUN: main.o foo.o -o main.elf \
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RUN: -Wl,--thinlto-cache-dir=cache.dir \
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RUN: -Wl,--save-temps
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RUN: ls cache.dir | count 5
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#--- foo.c
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volatile int foo_int;
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__attribute__((retain)) int foo(int x) { return x + foo_int; }
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#--- main.c
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extern int foo(int x);
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__attribute__((retain)) int main(int argc, char** argv) {
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return foo(argc);
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}
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