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      1 // -flto causes a switch to llvm-bc object files.
      2 // RUN: %clang -ccc-print-phases -c %s -flto 2> %t
      3 // RUN: FileCheck -check-prefix=CHECK-COMPILE-ACTIONS < %t %s
      4 //
      5 // CHECK-COMPILE-ACTIONS: 2: compiler, {1}, ir
      6 // CHECK-COMPILE-ACTIONS: 3: backend, {2}, lto-bc
      7 
      8 // RUN: %clang -ccc-print-phases %s -flto 2> %t
      9 // RUN: FileCheck -check-prefix=CHECK-COMPILELINK-ACTIONS < %t %s
     10 //
     11 // CHECK-COMPILELINK-ACTIONS: 0: input, "{{.*}}lto.c", c
     12 // CHECK-COMPILELINK-ACTIONS: 1: preprocessor, {0}, cpp-output
     13 // CHECK-COMPILELINK-ACTIONS: 2: compiler, {1}, ir
     14 // CHECK-COMPILELINK-ACTIONS: 3: backend, {2}, lto-bc
     15 // CHECK-COMPILELINK-ACTIONS: 4: linker, {3}, image
     16 
     17 // llvm-bc and llvm-ll outputs need to match regular suffixes
     18 // (unfortunately).
     19 // RUN: %clang %s -flto -save-temps -### 2> %t
     20 // RUN: FileCheck -check-prefix=CHECK-COMPILELINK-SUFFIXES < %t %s
     21 //
     22 // CHECK-COMPILELINK-SUFFIXES: "-o" "{{.*}}lto.i" "-x" "c" "{{.*}}lto.c"
     23 // CHECK-COMPILELINK-SUFFIXES: "-o" "{{.*}}lto.bc" {{.*}}"{{.*}}lto.i"
     24 // CHECK-COMPILELINK-SUFFIXES: "-o" "{{.*}}lto.o" {{.*}}"{{.*}}lto.bc"
     25 // CHECK-COMPILELINK-SUFFIXES: "{{.*}}a.{{(out|exe)}}" {{.*}}"{{.*}}lto.o"
     26 
     27 // RUN: %clang %s -flto -S -### 2> %t
     28 // RUN: FileCheck -check-prefix=CHECK-COMPILE-SUFFIXES < %t %s
     29 //
     30 // CHECK-COMPILE-SUFFIXES: "-o" "{{.*}}lto.s" "-x" "c" "{{.*}}lto.c"
     31 
     32 // RUN: not %clang %s -emit-llvm 2>&1 | FileCheck --check-prefix=LLVM-LINK %s
     33 // LLVM-LINK: -emit-llvm cannot be used when linking
     34 
     35 // -flto should cause link using gold plugin
     36 // RUN: %clang -target x86_64-unknown-linux -### %s -flto 2> %t
     37 // RUN: FileCheck -check-prefix=CHECK-LINK-LTO-ACTION < %t %s
     38 //
     39 // CHECK-LINK-LTO-ACTION: "-plugin" "{{.*}}/LLVMgold.so"
     40 
     41 // -flto=full should cause link using gold plugin
     42 // RUN: %clang -target x86_64-unknown-linux -### %s -flto=full 2> %t
     43 // RUN: FileCheck -check-prefix=CHECK-LINK-FULL-ACTION < %t %s
     44 //
     45 // CHECK-LINK-FULL-ACTION: "-plugin" "{{.*}}/LLVMgold.so"
     46 
     47 // Check that subsequent -fno-lto takes precedence
     48 // RUN: %clang -target x86_64-unknown-linux -### %s -flto=full -fno-lto 2> %t
     49 // RUN: FileCheck -check-prefix=CHECK-LINK-NOLTO-ACTION < %t %s
     50 //
     51 // CHECK-LINK-NOLTO-ACTION-NOT: "-plugin" "{{.*}}/LLVMgold.so"
     52 
     53 // -flto passes along an explicit debugger tuning argument.
     54 // RUN: %clang -target x86_64-unknown-linux -### %s -flto -glldb 2> %t
     55 // RUN: FileCheck -check-prefix=CHECK-TUNING-LLDB < %t %s
     56 // RUN: %clang -target x86_64-unknown-linux -### %s -flto -g 2> %t
     57 // RUN: FileCheck -check-prefix=CHECK-NO-TUNING < %t %s
     58 //
     59 // CHECK-TUNING-LLDB:   "-plugin-opt=-debugger-tune=lldb"
     60 // CHECK-NO-TUNING-NOT: "-plugin-opt=-debugger-tune
     61