1; REQUIRES: x86-registered-target
2
3; RUN: opt -module-summary -o %t1.o %s
4; RUN: opt -module-summary -o %t2.o %S/Inputs/thinlto_backend.ll
5; RUN: llvm-lto -thinlto -o %t %t1.o %t2.o
6
7; Ensure clang -cc1 give expected error for incorrect input type
8; RUN: not %clang_cc1 -O2 -o %t1.o -x c %s -c -fthinlto-index=%t.thinlto.bc 2>&1 | FileCheck %s -check-prefix=CHECK-WARNING
9; CHECK-WARNING: error: invalid argument '-fthinlto-index={{.*}}' only allowed with '-x ir'
10
11; Ensure we get expected error for missing index file
12; RUN: %clang -O2 -o %t4.o -x ir %t1.o -c -fthinlto-index=bad.thinlto.bc 2>&1 | FileCheck %s -check-prefix=CHECK-ERROR1
13; CHECK-ERROR1: Error loading index file 'bad.thinlto.bc'
14
15; Ensure we ignore empty index file under -ignore-empty-index-file, and run
16; non-ThinLTO compilation which would not import f2
17; RUN: touch %t4.thinlto.bc
18; RUN: %clang -O2 -o %t4.o -x ir %t1.o -c -fthinlto-index=%t4.thinlto.bc -mllvm -ignore-empty-index-file
19; RUN: llvm-nm %t4.o | FileCheck --check-prefix=CHECK-OBJ-IGNORE-EMPTY %s
20; CHECK-OBJ-IGNORE-EMPTY: T f1
21; CHECK-OBJ-IGNORE-EMPTY: U f2
22
23; Ensure f2 was imported
24; RUN: %clang -target x86_64-unknown-linux-gnu -O2 -o %t3.o -x ir %t1.o -c -fthinlto-index=%t.thinlto.bc
25; RUN: llvm-nm %t3.o | FileCheck --check-prefix=CHECK-OBJ %s
26; CHECK-OBJ: T f1
27; CHECK-OBJ-NOT: U f2
28
29; Ensure we get expected error for input files without summaries
30; RUN: opt -o %t2.o %s
31; 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-ERROR2
32; CHECK-ERROR2: Error loading imported file '{{.*}}': Could not find module summary
33
34target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
35target triple = "x86_64-unknown-linux-gnu"
36
37declare void @f2()
38
39define void @f1() {
40  call void @f2()
41  ret void
42}
43