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, and run non-ThinLTO compilation which 16; would not import f2 17; RUN: touch %t4.thinlto.bc 18; RUN: %clang -target x86_64-unknown-linux-gnu -O2 -o %t4.o -x ir %t1.o -c -fthinlto-index=%t4.thinlto.bc 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 we don't fail with index and non-ThinLTO object file, and output must 24; be empty file. 25; RUN: opt -o %t5.o %s 26; RUN: %clang -target x86_64-unknown-linux-gnu -O2 -o %t4.o -x ir %t5.o -c -fthinlto-index=%t.thinlto.bc 27; RUN: llvm-nm %t4.o 2>&1 | count 0 28 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=obj 31; RUN: llvm-dis %t1.s.3.import.bc -o - | FileCheck --check-prefix=CHECK-IMPORT %s 32; RUN: mkdir -p %T/dir1 33; RUN: cd %T/dir1 34; RUN: %clang -target x86_64-unknown-linux-gnu -O2 -o %t3.o -x ir %t1.o -c -fthinlto-index=%t.thinlto.bc -save-temps=cwd 35; RUN: cd ../.. 36; RUN: llvm-dis %T/dir1/*1.s.3.import.bc -o - | FileCheck --check-prefix=CHECK-IMPORT %s 37; RUN: mkdir -p %T/dir2 38; RUN: cd %T/dir2 39; RUN: %clang -target x86_64-unknown-linux-gnu -O2 -o %t3.o -x ir %t1.o -c -fthinlto-index=%t.thinlto.bc -save-temps 40; RUN: cd ../.. 41; RUN: llvm-dis %T/dir2/*1.s.3.import.bc -o - | FileCheck --check-prefix=CHECK-IMPORT %s 42; CHECK-IMPORT: define available_externally void @f2() 43; RUN: llvm-nm %t3.o | FileCheck --check-prefix=CHECK-OBJ %s 44; CHECK-OBJ: T f1 45; CHECK-OBJ-NOT: U f2 46 47; Ensure we get expected error for input files without summaries 48; RUN: opt -o %t2.o %s 49; 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 50; CHECK-ERROR2: Error loading imported file {{.*}}: Could not find module summary 51 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 void 64} 65