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; REQUIRES: x86, shell
; RUN: opt -module-hash -module-summary %s -o %t.o
; RUN: opt -module-hash -module-summary %p/Inputs/cache.ll -o %t2.o
; RUN: rm -rf %t && mkdir %t
;; Check cache policies of the number of files.
;; Case 1: A value of 0 disables the number of files based pruning. Therefore, there is no warning.
; 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:
;; 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.
; 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:
;; 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.
; 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
;; Check cache policies of the cache size.
;; Case 1: A value of 0 disables the absolute size-based pruning. Therefore, there is no warning.
; 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:
;; Get the total size of created cache files.
; RUN: rm -rf %t && mkdir %t && cd %t
; 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
; 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
;; 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.
; 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:
;; 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.
; 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
;; Check emit two warnings if pruning happens due to reach both the size and number limits.
; 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
; NUM: warning: ThinLTO cache pruning happens since the number of{{.*}}--thinlto-cache-policy
; SIZE: warning: ThinLTO cache pruning happens since the total size of{{.*}}--thinlto-cache-policy
; WARN-NOT: warning: ThinLTO cache pruning happens{{.*}}--thinlto-cache-policy
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
define void @globalfunc() {
entry:
ret void
}
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