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1; REQUIRES: x86-registered-target2 3; RUN: opt -module-summary -o %t1.o %s4; RUN: opt -module-summary -o %t2.o %S/Inputs/thinlto_backend.ll5; RUN: llvm-lto -thinlto -o %t %t1.o %t2.o6 7; Ensure clang -cc1 give expected error for incorrect input type8; RUN: not %clang_cc1 -O2 -o %t1.o -x c %s -c -fthinlto-index=%t.thinlto.bc 2>&1 | FileCheck %s -check-prefix=CHECK-WARNING9; CHECK-WARNING: error: invalid argument '-fthinlto-index={{.*}}' only allowed with '-x ir'10 11; Ensure we get expected error for missing index file12; RUN: %clang -O2 -o %t4.o -x ir %t1.o -c -fthinlto-index=bad.thinlto.bc 2>&1 | FileCheck %s -check-prefix=CHECK-ERROR113; CHECK-ERROR1: Error loading index file 'bad.thinlto.bc'14 15; Ensure we ignore empty index file, and run non-ThinLTO compilation which16; would not import f217; RUN: touch %t4.thinlto.bc18; RUN: %clang -target x86_64-unknown-linux-gnu -O2 -o %t4.o -x ir %t1.o -c -fthinlto-index=%t4.thinlto.bc19; RUN: llvm-nm %t4.o | FileCheck --check-prefix=CHECK-OBJ-IGNORE-EMPTY %s20; CHECK-OBJ-IGNORE-EMPTY: T f121; CHECK-OBJ-IGNORE-EMPTY: U f222 23; Ensure we don't fail with index and non-ThinLTO object file, and output must24; be empty file.25; RUN: opt -o %t5.o %s26; RUN: %clang -target x86_64-unknown-linux-gnu -O2 -o %t4.o -x ir %t5.o -c -fthinlto-index=%t.thinlto.bc27; RUN: llvm-nm %t4.o 2>&1 | count 028 29; Ensure f2 was imported. Check for all 3 flavors of -save-temps[=cwd|obj].30; RUN: %clang -target x86_64-unknown-linux-gnu -O2 -o %t3.o -x ir %t1.o -c -fthinlto-index=%t.thinlto.bc -save-temps=obj31; RUN: llvm-dis %t1.s.3.import.bc -o - | FileCheck --check-prefix=CHECK-IMPORT %s32; RUN: mkdir -p %t.dir/dir133; RUN: cd %t.dir/dir134; RUN: %clang -target x86_64-unknown-linux-gnu -O2 -o %t3.o -x ir %t1.o -c -fthinlto-index=%t.thinlto.bc -save-temps=cwd35; RUN: cd ../..36; RUN: llvm-dis %t.dir/dir1/*1.s.3.import.bc -o - | FileCheck --check-prefix=CHECK-IMPORT %s37; RUN: mkdir -p %t.dir/dir238; RUN: cd %t.dir/dir239; RUN: %clang -target x86_64-unknown-linux-gnu -O2 -o %t3.o -x ir %t1.o -c -fthinlto-index=%t.thinlto.bc -save-temps40; RUN: cd ../..41; RUN: llvm-dis %t.dir/dir2/*1.s.3.import.bc -o - | FileCheck --check-prefix=CHECK-IMPORT %s42; CHECK-IMPORT: define available_externally void @f2()43; RUN: llvm-nm %t3.o | FileCheck --check-prefix=CHECK-OBJ %s44; CHECK-OBJ: T f145; CHECK-OBJ-NOT: U f246 47; Ensure we get expected error for input files without summaries48; RUN: opt -o %t2.o %s49; RUN: %clang -target x86_64-unknown-linux-gnu -O2 -o %t3.o -x ir %t1.o -c -fthinlto-index=%t.thinlto.bc 2>&1 | FileCheck %s -check-prefix=CHECK-ERROR250; CHECK-ERROR2: Error loading imported file {{.*}}: Could not find module summary51 52target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"53target triple = "x86_64-unknown-linux-gnu"54 55declare void @f2()56declare ptr @f3()57 58define void @f1() {59 call void @f2()60 ; Make sure that the backend can handle undefined references.61 ; Do an indirect call so that the undefined ref shows up in the combined index.62 call void @f3()63 ret void64}65