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Add testing in llvm-lto for ThinLTO caching.

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Trying to improve code coverage for `make check`

From: mehdi_amini <mehdi_amini@91177308-0d34-0410-b5e6-96231b3b80d8>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269545 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Mehdi Amini 2016-05-14 05:16:41 +00:00
parent 9695fb5b85
commit b01d46ba1c
3 changed files with 31 additions and 0 deletions
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11
test/ThinLTO/X86/Inputs/cache.ll Normal file
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@ -0,0 +1,11 @@
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.11.0"
define i32 @main() {
entry:
call void (...) @globalfunc()
ret i32 0
}
declare void @globalfunc(...)

16
test/ThinLTO/X86/cache.ll Normal file
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@ -0,0 +1,16 @@
; RUN: opt -module-summary %s -o %t.bc
; RUN: opt -module-summary %p/Inputs/funcimport.ll -o %t2.bc
; Verify that enabling caching is working
; RUN: rm -Rf %t.cache && mkdir %t.cache
; RUN: llvm-lto -thinlto-action=run -exported-symbol=globalfunc %t2.bc %t.bc -thinlto-cache-dir %t.cache
; RUN: ls %t.cache/llvmcache.timestamp
; RUN: ls %t.cache | count 3
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.11.0"
define void @globalfunc() #0 {
entry:
ret void
}

4
tools/llvm-lto/llvm-lto.cpp
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@ -109,6 +109,9 @@ static cl::opt<std::string> ThinLTOModuleId(
cl::desc("For the module ID for the file to process, useful to "
"match what is in the index."));
static cl::opt<std::string>
ThinLTOCacheDir("thinlto-cache-dir", cl::desc("Enable ThinLTO caching."));
static cl::opt<bool>
SaveModuleFile("save-merged-module", cl::init(false),
cl::desc("Write merged LTO module to file before CodeGen"));
@ -350,6 +353,7 @@ public:
ThinLTOProcessing(const TargetOptions &Options) {
ThinGenerator.setCodePICModel(RelocModel);
ThinGenerator.setTargetOptions(Options);
ThinGenerator.setCacheDir(ThinLTOCacheDir);
// Add all the exported symbols to the table of symbols to preserve.
for (unsigned i = 0; i < ExportedSymbols.size(); ++i)