clang/test/Driver/fat-lto-objects.c

   1 // RUN: %clang --target=x86_64-unknown-linux-gnu -flto -ffat-lto-objects -### %s -c 2>&1 | FileCheck %s -check-prefix=CHECK-CC
   2 // CHECK-CC: -cc1
   3 // CHECK-CC-SAME: -emit-obj
   4 // CHECK-CC-SAME: -ffat-lto-objects
   5
   6 /// Without -flto -S will just emit normal ASM, so we don't expect -emit-{llvm,obj} or -ffat-lto-objects to be passed to cc1.
   7 // RUN: %clang --target=x86_64-unknown-linux-gnu -ffat-lto-objects -### %s -S 2>&1 | FileCheck %s -check-prefix=CHECK-CC-S
   8 // CHECK-CC-S: -cc1
   9 // CHECK-CC-S: -S
  10 // CHECK-CC-S-NOT: -emit-obj
  11 // CHECK-CC-S-NOT: -emit-llvm
  12 // CHECK-CC-S-NOT: -ffat-lto-objects
  13
  14 /// When LTO is enabled, we expect LLVM IR output and -ffat-lto-objects to be passed to cc1.
  15 // RUN: %clang --target=x86_64-unknown-linux-gnu -flto -ffat-lto-objects -### %s -S 2>&1 | FileCheck %s -check-prefix=CHECK-CC-S-LTO
  16 // RUN: %clang --target=x86_64-unknown-linux-gnu -flto -ffat-lto-objects -### %s -S -emit-llvm 2>&1 | FileCheck %s -check-prefix=CHECK-CC-S-LTO
  17 // CHECK-CC-S-LTO: -cc1
  18 // CHECK-CC-S-LTO-SAME: -emit-llvm
  19 // CHECK-CC-S-LTO-SAME: -ffat-lto-objects
  20
  21 /// Make sure we don't have a warning for -ffat-lto-objects being unused
  22 // RUN: %clang --target=x86_64-unknown-linux-gnu -ffat-lto-objects -fdriver-only -Werror -v %s -c 2>&1 | FileCheck %s -check-prefix=CHECK-CC-NOLTO
  23 // CHECK-CC-NOLTO: -cc1
  24 // CHECK-CC-NOLTO-SAME: -emit-obj
  25 // CHECK-CC-NOLTO-NOT: -ffat-lto-objects
  26
  27 /// We need to pass an additional flag (--fat-lto-objects) to lld when linking w/ -flto -ffat-lto-objects
  28 /// But it should not be there when LTO is disabled w/ -fno-lto
  29 // RUN: %clang --target=x86_64-unknown-linux-gnu --sysroot=%S/Inputs/basic_cross_linux_tree %s \
  30 // RUN:   -fuse-ld=lld -flto -ffat-lto-objects -### 2>&1 | FileCheck --check-prefix=LTO %s
  31 // RUN: %clang --target=x86_64-unknown-linux-gnu --sysroot=%S/Inputs/basic_cross_linux_tree %s \
  32 // RUN:   -fuse-ld=lld -fno-lto -ffat-lto-objects -### 2>&1 | FileCheck --check-prefix=NOLTO %s
  33 // LTO: "--fat-lto-objects"
  34 // NOLTO-NOT: "--fat-lto-objects"