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llvm-mirror/test/ThinLTO/X86/cache.ll
Azharuddin Mohammed 986289ad08 [ThinLTO] [test] cache.ll: Prevent Spotlight indexing of the output dir 
The test output files whose atime is altered in the test were getting
accessed by Spotlight indexing on macOS, causing them to get an updated
atime and leading to the test not behaving as expected.

Reviewed By: jhenderson, steven_wu

Differential Revision: https://reviews.llvm.org/D84700
2020-07-28 21:21:58 -07:00

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; NetBSD: noatime mounts currently inhibit 'touch -a' updates
; UNSUPPORTED: system-netbsd
; The .noindex suffix for output dir is to prevent Spotlight on macOS from
; indexing it.
; Verify first that *without* hash, we don't use the cache.
; RUN: opt -module-summary %s -o %t.bc
; RUN: opt -module-summary %p/Inputs/cache.ll -o %t2.bc
; Verify that enabling caching is ignoring module without hash
; RUN: rm -Rf %t.cache.noindex && mkdir %t.cache.noindex
; RUN: llvm-lto -thinlto-action=run -exported-symbol=globalfunc %t2.bc %t.bc -thinlto-cache-dir %t.cache.noindex
; RUN: ls %t.cache.noindex/llvmcache.timestamp
; RUN: ls %t.cache.noindex | count 1
; Verify that enabling caching is ignoring module without hash with llvm-lto2
; RUN: rm -Rf %t.cache.noindex
; RUN: llvm-lto2 run -o %t.o %t2.bc %t.bc -cache-dir %t.cache.noindex \
; RUN: -r=%t2.bc,_main,plx \
; RUN: -r=%t2.bc,_globalfunc,lx \
; RUN: -r=%t.bc,_globalfunc,plx
; RUN: ls %t.cache.noindex | count 0
; Repeat again, *with* hash this time.
; RUN: opt -module-hash -module-summary %s -o %t.bc
; RUN: opt -module-hash -module-summary %p/Inputs/cache.ll -o %t2.bc
; Verify that enabling caching is working, and that the pruner only removes
; files matching the pattern "llvmcache-*".
; RUN: rm -Rf %t.cache.noindex && mkdir %t.cache.noindex
; RUN: touch -t 197001011200 %t.cache.noindex/llvmcache-foo %t.cache.noindex/foo
; RUN: llvm-lto -thinlto-action=run -exported-symbol=globalfunc %t2.bc %t.bc -thinlto-cache-dir %t.cache.noindex
; RUN: ls %t.cache.noindex | count 4
; RUN: ls %t.cache.noindex/llvmcache.timestamp
; RUN: ls %t.cache.noindex/foo
; RUN: not ls %t.cache.noindex/llvmcache-foo
; RUN: ls %t.cache.noindex/llvmcache-* | count 2
; Verify that enabling caching is working with llvm-lto2
; RUN: rm -Rf %t.cache.noindex
; RUN: llvm-lto2 run -o %t.o %t2.bc %t.bc -cache-dir %t.cache.noindex \
; RUN: -r=%t2.bc,_main,plx \
; RUN: -r=%t2.bc,_globalfunc,lx \
; RUN: -r=%t.bc,_globalfunc,plx
; RUN: ls %t.cache.noindex | count 2
; RUN: ls %t.cache.noindex/llvmcache-* | count 2
; Verify that caches with a timestamp older than the pruning interval
; will be pruned
; RUN: rm -Rf %t.cache.noindex && mkdir %t.cache.noindex
; RUN: touch -t 197001011200 %t.cache.noindex/llvmcache-foo
; RUN: touch -t 197001011200 %t.cache.noindex/llvmcache.timestamp
; RUN: llvm-lto -thinlto-action=run -exported-symbol=globalfunc %t2.bc %t.bc -thinlto-cache-dir %t.cache.noindex
; RUN: not ls %t.cache.noindex/llvmcache-foo
; Verify that specifying a negative number for the pruning interval
; effectively disables the pruning
; RUN: rm -Rf %t.cache.noindex && mkdir %t.cache.noindex
; RUN: touch -t 197001011200 %t.cache.noindex/llvmcache-foo
; RUN: touch -t 197001011200 %t.cache.noindex/llvmcache.timestamp
; RUN: llvm-lto -thinlto-action=run -exported-symbol=globalfunc %t2.bc %t.bc -thinlto-cache-dir %t.cache.noindex --thinlto-cache-pruning-interval -1
; RUN: ls %t.cache.noindex/llvmcache-foo
; Verify that the pruner doesn't run and a cache file is not deleted when:
; default values for pruning interval and cache expiration are used,
; llvmcache.timestamp is current,
; cache file is older than default cache expiration value.
; RUN: rm -Rf %t.cache.noindex && mkdir %t.cache.noindex
; RUN: touch -t 197001011200 %t.cache.noindex/llvmcache-foo
; RUN: touch %t.cache.noindex/llvmcache.timestamp
; RUN: llvm-lto -thinlto-action=run -exported-symbol=globalfunc %t2.bc %t.bc -thinlto-cache-dir %t.cache.noindex
; RUN: ls %t.cache.noindex/llvmcache-foo
; Verify that the pruner runs and a cache file is deleted when:
; pruning interval has value 0 (i.e. run garbage collector now)
; default value for cache expiration is used,
; llvmcache.timestamp is current,
; cache file is older than default cache expiration value.
; RUN: rm -Rf %t.cache.noindex && mkdir %t.cache.noindex
; RUN: touch -t 197001011200 %t.cache.noindex/llvmcache-foo
; RUN: touch %t.cache.noindex/llvmcache.timestamp
; RUN: llvm-lto -thinlto-action=run -exported-symbol=globalfunc %t2.bc %t.bc -thinlto-cache-dir %t.cache.noindex --thinlto-cache-pruning-interval 0
; RUN: not ls %t.cache.noindex/llvmcache-foo
; Populate the cache with files with "old" access times, then check llvm-lto updates these file times
; A negative pruning interval is used to avoid removing cache entries
; RUN: rm -Rf %t.cache.noindex && mkdir %t.cache.noindex
; RUN: llvm-lto -thinlto-action=run -exported-symbol=globalfunc %t2.bc %t.bc -thinlto-cache-dir %t.cache.noindex
; RUN: touch -a -t 197001011200 %t.cache.noindex/llvmcache-*
; RUN: llvm-lto -thinlto-action=run -exported-symbol=globalfunc %t2.bc %t.bc -thinlto-cache-dir %t.cache.noindex --thinlto-cache-pruning-interval -1
; RUN: ls -ltu %t.cache.noindex/* | not grep 1970-01-01
; Populate the cache with files with "old" access times, then check llvm-lto2 updates these file times
; RUN: rm -Rf %t.cache.noindex
; RUN: llvm-lto2 run -o %t.o %t2.bc %t.bc -cache-dir %t.cache.noindex \
; RUN: -r=%t2.bc,_main,plx \
; RUN: -r=%t2.bc,_globalfunc,lx \
; RUN: -r=%t.bc,_globalfunc,plx
; RUN: touch -a -t 197001011200 %t.cache.noindex/llvmcache-*
; RUN: llvm-lto2 run -o %t.o %t2.bc %t.bc -cache-dir %t.cache.noindex \
; RUN: -r=%t2.bc,_main,plx \
; RUN: -r=%t2.bc,_globalfunc,lx \
; RUN: -r=%t.bc,_globalfunc,plx
; RUN: ls -ltu %t.cache.noindex/* | not grep 1970-01-01
; Verify that specifying max size for the cache directory prunes it to this
; size, removing the oldest files first.
; RUN: rm -Rf %t.cache.noindex && mkdir %t.cache.noindex
; Create cache files with different sizes.
; Only 8B and 76B files should stay after pruning.
; RUN: %python -c "with open(r'%t.cache.noindex/llvmcache-foo-100k', 'w') as file: file.truncate(102400)"
; RUN: touch -t 198002011200 %t.cache.noindex/llvmcache-foo-100k
; RUN: %python -c "with open(r'%t.cache.noindex/llvmcache-foo-16', 'w') as file: file.truncate(16)"
; RUN: touch -t 198002021200 %t.cache.noindex/llvmcache-foo-16
; RUN: %python -c "with open(r'%t.cache.noindex/llvmcache-foo-77k', 'w') as file: file.truncate(78848)"
; RUN: touch -t 198002031200 %t.cache.noindex/llvmcache-foo-77k
; RUN: %python -c "with open(r'%t.cache.noindex/llvmcache-foo-8', 'w') as file: file.truncate(8)"
; RUN: touch -t 198002041200 %t.cache.noindex/llvmcache-foo-8
; RUN: %python -c "with open(r'%t.cache.noindex/llvmcache-foo-76', 'w') as file: file.truncate(76)"
; RUN: touch -t 198002051200 %t.cache.noindex/llvmcache-foo-76
; RUN: llvm-lto -thinlto-action=run -exported-symbol=globalfunc %t2.bc %t.bc -thinlto-cache-dir %t.cache.noindex --thinlto-cache-max-size-bytes 78847 --thinlto-cache-entry-expiration 4294967295
; RUN: ls %t.cache.noindex/llvmcache-foo-8
; RUN: ls %t.cache.noindex/llvmcache-foo-76
; RUN: not ls %t.cache.noindex/llvmcache-foo-16
; RUN: not ls %t.cache.noindex/llvmcache-foo-100k
; RUN: not ls %t.cache.noindex/llvmcache-foo-77k
; Verify that specifying a max size > 4GB for the cache directory does not
; prematurely prune, due to an integer overflow.
; RUN: rm -Rf %t.cache.noindex && mkdir %t.cache.noindex
; RUN: %python -c "with open(r'%t.cache.noindex/llvmcache-foo-10', 'w') as file: file.truncate(10)"
; RUN: llvm-lto -thinlto-action=run -exported-symbol=globalfunc %t2.bc %t.bc -thinlto-cache-dir %t.cache.noindex --thinlto-cache-max-size-bytes 4294967297
; RUN: ls %t.cache.noindex/llvmcache-foo-10
; Verify that negative numbers aren't accepted for the
; --thinlto-cache-max-size-bytes switch
; RUN: rm -Rf %t.cache.noindex && mkdir %t.cache.noindex
; RUN: not llvm-lto %t.bc --thinlto-cache-max-size-bytes -1 2>&1 | FileCheck %s
; CHECK: -thinlto-cache-max-size-bytes option: '-1' value invalid
; Verify that specifying max number of files in the cache directory prunes
; it to this amount, removing the oldest files first.
; RUN: rm -Rf %t.cache.noindex && mkdir %t.cache.noindex
; Create cache files with different sizes.
; Only 75B and 76B files should stay after pruning.
; RUN: %python -c "print(' ' * 1023)" > %t.cache.noindex/llvmcache-foo-1023
; RUN: touch -t 198002011200 %t.cache.noindex/llvmcache-foo-1023
; RUN: %python -c "print(' ' * 15)" > %t.cache.noindex/llvmcache-foo-15
; RUN: touch -t 198002021200 %t.cache.noindex/llvmcache-foo-15
; RUN: %python -c "print(' ' * 7)" > %t.cache.noindex/llvmcache-foo-7
; RUN: touch -t 198002031200 %t.cache.noindex/llvmcache-foo-7
; RUN: %python -c "print(' ' * 75)" > %t.cache.noindex/llvmcache-foo-75
; RUN: touch -t 198002041200 %t.cache.noindex/llvmcache-foo-75
; RUN: %python -c "print(' ' * 76)" > %t.cache.noindex/llvmcache-foo-76
; RUN: touch -t 198002051200 %t.cache.noindex/llvmcache-foo-76
; RUN: llvm-lto -thinlto-action=run -exported-symbol=globalfunc %t2.bc %t.bc -thinlto-cache-dir %t.cache.noindex --thinlto-cache-max-size-files 4 --thinlto-cache-entry-expiration 4294967295
; RUN: ls %t.cache.noindex/llvmcache-foo-75
; RUN: ls %t.cache.noindex/llvmcache-foo-76
; RUN: not ls %t.cache.noindex/llvmcache-foo-15
; RUN: not ls %t.cache.noindex/llvmcache-foo-1024
; RUN: not ls %t.cache.noindex/llvmcache-foo-7
target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.11.0"
define void @globalfunc() #0 {
entry:
ret void
}
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