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71 lines
2.9 KiB
Plaintext
71 lines
2.9 KiB
Plaintext
REQUIRES: ld.lld
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# Test that DTLTO temporary files are "best-effort" cleaned up unless
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# --save-temps is specified. We use archives in this test as the handling for
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# archives requires a superset of the temporary files used for object inputs.
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RUN: rm -rf %t && split-file %s %t && cd %t
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RUN: %clang --target=x86_64-linux-gnu -O2 t1.c t2.c -flto=thin -c
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RUN: llvm-ar rcs t.a t1.o t2.o
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DEFINE: %{tdir} = dummy-to-make-lit-work
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DEFINE: %{action} = dummy-to-make-lit-work
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DEFINE: %{test-temps-dtlto} = \
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DEFINE: mkdir %{tdir} && %python %S/test_temps.py %{tdir} %{action} \
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DEFINE: %clang --target=x86_64-linux-gnu -nostdlib -O2 -flto=thin \
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DEFINE: -fuse-ld=lld -Wl,--whole-archive t.a -o %{tdir}/t.elf -shared \
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DEFINE: -fthinlto-distributor=%python \
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DEFINE: -Xthinlto-distributor=%S/local_codegen_and_wait.py
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# Check that all temporary files are removed in normal operation.
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REDEFINE: %{tdir} = empty
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REDEFINE: %{action} = none
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RUN: %{test-temps-dtlto}
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RUN: ls %{tdir} | sort | FileCheck %s --check-prefixes=BOOKEND,ELF
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# Check that --save-temps preserves temporary files.
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REDEFINE: %{tdir} = savetemps
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REDEFINE: %{action} = none
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RUN: %{test-temps-dtlto} -Wl,--save-temps
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RUN: ls %{tdir} | sort | FileCheck %s --check-prefixes=BOOKEND,TEMPS,INDEX,ELF
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# Check that --thinlto-emit-index-files preserves the index files.
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REDEFINE: %{tdir} = index
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REDEFINE: %{action} = none
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RUN: %{test-temps-dtlto} -Wl,--thinlto-emit-index-files
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RUN: ls %{tdir} | sort | FileCheck %s --check-prefixes=BOOKEND,INDEX,ELF
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# No files are expected before.
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BOOKEND-NOT: {{.}}
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TEMPS: {{^}}t.[[#PID:]].dist-file.json{{$}}
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# Filename composition: <archive>(<member> at <offset>).<task>.<pid>.<task>.<pid>.native.o.
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TEMPS: {{^}}t.a(t1.o at [[#T1_OFFSET:]]).1.[[#%X,HEXPID:]].1.[[#PID]].native.o{{$}}
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INDEX: {{^}}t.a(t1.o at [[#T1_OFFSET:]]).1.[[#%X,HEXPID:]].1.[[#PID:]].native.o.thinlto.bc{{$}}
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TEMPS: {{^}}t.a(t1.o at [[#T1_OFFSET]]).1.[[#%X,HEXPID]].o{{$}}
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TEMPS: {{^}}t.a(t2.o at [[#T2_OFFSET:]]).2.[[#%X,HEXPID]].2.[[#PID]].native.o{{$}}
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INDEX: {{^}}t.a(t2.o at [[#T2_OFFSET:]]).2.[[#%X,HEXPID]].2.[[#PID]].native.o.thinlto.bc{{$}}
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TEMPS: {{^}}t.a(t2.o at [[#T2_OFFSET]]).2.[[#%X,HEXPID]].o{{$}}
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ELF: {{^}}t.elf{{$}}
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TEMPS: {{^}}t.elf.resolution.txt{{$}}
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# No files are expected after.
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BOOKEND-NOT: {{.}}
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# Check that no warnings are produced if temporary files are missing. Note that
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# the use of the name "removed" for the output directory triggers special
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# behaviour in test_temps.py.
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REDEFINE: %{tdir} = removed
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REDEFINE: %{action} = remove
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RUN: %{test-temps-dtlto} 2>&1 | FileCheck %s --check-prefix=NOWARN --allow-empty
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RUN: ls %{tdir} | sort | FileCheck %s --check-prefixes=BOOKEND,ELF
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# Sanity check for the expected test_temps.py behaviour.
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NOWARN: Remove non-essential files in the output directory.
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NOWARN-NOT: warning
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#--- t1.c
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__attribute__((retain)) int t1(int x) { return x; }
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#--- t2.c
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__attribute__((retain)) int t2(int x) { return x; }
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