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Remove ignore-empty-index-file option 

Summary:
Clang changes to remove this option and replace with a parameter
always set in the context of a ThinLTO distributed backend.

Depends on D33133.

Reviewers: pcc

Subscribers: mehdi_amini, eraman, cfe-commits

Differential Revision: https://reviews.llvm.org/D33134

llvm-svn: 302940
This commit is contained in:
Teresa Johnson 2017-05-12 19:32:17 +00:00
parent 4cd12ce9a0
commit 517729fb20
2 changed files with 5 additions and 4 deletions
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3
clang/lib/CodeGen/BackendUtil.cpp
View File

@ -1073,7 +1073,8 @@ void clang::EmitBackendOutput(DiagnosticsEngine &Diags,
// into memory and pass it into runThinLTOBackend, which will run the
// function importer and invoke LTO passes.
Expected<std::unique_ptr<ModuleSummaryIndex>> IndexOrErr =
llvm::getModuleSummaryIndexForFile(CGOpts.ThinLTOIndexFile);
llvm::getModuleSummaryIndexForFile(CGOpts.ThinLTOIndexFile,
/*IgnoreEmptyThinLTOIndexFile*/true);
if (!IndexOrErr) {
logAllUnhandledErrors(IndexOrErr.takeError(), errs(),
"Error loading index file '" +

6
clang/test/CodeGen/thinlto_backend.ll
View File

@ -12,10 +12,10 @@
; RUN: %clang -O2 -o %t4.o -x ir %t1.o -c -fthinlto-index=bad.thinlto.bc 2>&1 | FileCheck %s -check-prefix=CHECK-ERROR1
; CHECK-ERROR1: Error loading index file 'bad.thinlto.bc'
; Ensure we ignore empty index file under -ignore-empty-index-file, and run
; non-ThinLTO compilation which would not import f2
; Ensure we ignore empty index file, and run non-ThinLTO compilation which
; would not import f2
; RUN: touch %t4.thinlto.bc
; RUN: %clang -target x86_64-unknown-linux-gnu -O2 -o %t4.o -x ir %t1.o -c -fthinlto-index=%t4.thinlto.bc -mllvm -ignore-empty-index-file
; RUN: %clang -target x86_64-unknown-linux-gnu -O2 -o %t4.o -x ir %t1.o -c -fthinlto-index=%t4.thinlto.bc
; RUN: llvm-nm %t4.o | FileCheck --check-prefix=CHECK-OBJ-IGNORE-EMPTY %s
; CHECK-OBJ-IGNORE-EMPTY: T f1
; CHECK-OBJ-IGNORE-EMPTY: U f2