1; REQUIRES: x86, shell 2; UNSUPPORTED: main-run-twice 3 4; RUN: opt -module-hash -module-summary %s -o %t.o 5; RUN: opt -module-hash -module-summary %p/Inputs/cache.ll -o %t2.o 6 7; RUN: rm -rf %t && mkdir %t 8 9;; Check cache policies of the number of files. 10;; Case 1: A value of 0 disables the number of files based pruning. Therefore, there is no warning. 11; RUN: ld.lld --verbose --thinlto-cache-dir=%t --thinlto-cache-policy=prune_interval=0s:cache_size_files=0 %t2.o %t.o -o %t3 2>&1 | FileCheck %s --implicit-check-not=warning: 12;; Case 2: If the total number of the files created by the current link job is less than the maximum number of files, there is no warning. 13; RUN: ld.lld --verbose --thinlto-cache-dir=%t --thinlto-cache-policy=prune_interval=0s:cache_size_files=3 %t2.o %t.o -o %t3 2>&1 | FileCheck %s --implicit-check-not=warning: 14;; Case 3: If the total number of the files created by the current link job exceeds the maximum number of files, a warning is given. 15; RUN: ld.lld --thinlto-cache-dir=%t --thinlto-cache-policy=prune_interval=0s:cache_size_files=1 %t2.o %t.o -o %t3 2>&1 | FileCheck %s --check-prefixes=NUM,WARN 16 17;; Check cache policies of the cache size. 18;; Case 1: A value of 0 disables the absolute size-based pruning. Therefore, there is no warning. 19; RUN: ld.lld --verbose --thinlto-cache-dir=%t --thinlto-cache-policy=prune_interval=0s:cache_size_bytes=0 %t2.o %t.o -o %t3 2>&1 | FileCheck %s --implicit-check-not=warning: 20 21;; Get the total size of created cache files. 22; RUN: rm -rf %t && mkdir %t && cd %t 23; RUN: ld.lld --thinlto-cache-dir=%t --thinlto-cache-policy=prune_interval=0s:cache_size_bytes=32k %t2.o %t.o -o %t3 2>&1 24; RUN: %python -c "import os, sys; print(sum(os.path.getsize(filename) for filename in os.listdir('.') if os.path.isfile(filename) and filename.startswith('llvmcache-')))" > %t.size.txt 25 26;; Case 2: If the total size of the cache files created by the current link job is less than the maximum size for the cache directory in bytes, there is no warning. 27; RUN: ld.lld --verbose --thinlto-cache-dir=%t --thinlto-cache-policy=prune_interval=0s:cache_size_bytes=$(($(cat %t.size.txt) + 5)) %t2.o %t.o -o %t3 2>&1 | FileCheck %s --implicit-check-not=warning: 28 29;; Case 3: If the total size of the cache files created by the current link job exceeds the maximum size for the cache directory in bytes, a warning is given. 30; RUN: ld.lld --verbose --thinlto-cache-dir=%t --thinlto-cache-policy=prune_interval=0s:cache_size_bytes=$(($(cat %t.size.txt) - 5)) %t2.o %t.o -o %t3 2>&1 | FileCheck %s --check-prefixes=SIZE,WARN 31 32;; Check emit two warnings if pruning happens due to reach both the size and number limits. 33; RUN: ld.lld --thinlto-cache-dir=%t --thinlto-cache-policy=prune_interval=0s:cache_size_files=1:cache_size_bytes=1 %t2.o %t.o -o %t3 2>&1 | FileCheck %s --check-prefixes=NUM,SIZE,WARN 34 35; NUM: warning: ThinLTO cache pruning happens since the number of{{.*}}--thinlto-cache-policy 36; SIZE: warning: ThinLTO cache pruning happens since the total size of{{.*}}--thinlto-cache-policy 37; WARN-NOT: warning: ThinLTO cache pruning happens{{.*}}--thinlto-cache-policy 38 39target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 40target triple = "x86_64-unknown-linux-gnu" 41 42define void @globalfunc() { 43entry: 44 ret void 45} 46