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// If a toolchain uses an external assembler, the test would fail because using
// an external assember would increase job counts. Most toolchains in tree
// use integrated assembler, but we still support external assembler.
// So -fintegrated-as is specified explicitly when applicable.
// RUN: %clang -fintegrated-cc1 -fintegrated-as -c -### %s 2>&1 | FileCheck %s --check-prefix=YES
// RUN: %clang -fno-integrated-cc1 -c -### %s 2>&1 | FileCheck %s --check-prefix=NO
// RUN: %clang -fintegrated-cc1 -fno-integrated-cc1 -c -### %s 2>&1 \
// RUN: | FileCheck %s --check-prefix=NO
// RUN: %clang -fno-integrated-cc1 -fintegrated-cc1 -fintegrated-as -c -### %s 2>&1 \
// RUN: | FileCheck %s --check-prefix=YES
// RUN: %clang_cl -fintegrated-cc1 -fintegrated-as -c -### -- %s 2>&1 \
// RUN: | FileCheck %s --check-prefix=YES
// RUN: %clang_cl -fno-integrated-cc1 -c -### -- %s 2>&1 \
// RUN: | FileCheck %s --check-prefix=NO
// RUN: env CCC_OVERRIDE_OPTIONS=+-fintegrated-cc1 \
// RUN: %clang -fintegrated-cc1 -fintegrated-as -c -### %s 2>&1 \
// RUN: | FileCheck %s --check-prefix=YES
// RUN: env CCC_OVERRIDE_OPTIONS=+-fno-integrated-cc1 \
// RUN: %clang -fintegrated-cc1 -c -### %s 2>&1 \
// RUN: | FileCheck %s --check-prefix=NO
// YES: (in-process)
// NO-NOT: (in-process)
// The following tests ensure that only one integrated-cc1 is executed.
// Only one TU, one job, thus integrated-cc1 is enabled.
// RUN: %clang -fintegrated-cc1 -fintegrated-as -c %s -### 2>&1 | FileCheck %s --check-prefix=YES
// Only one TU, but we're linking, two jobs, thus integrated-cc1 is disabled.
// RUN: %clang -fintegrated-cc1 %s -### 2>&1 | FileCheck %s --check-prefix=NO
// RUN: echo 'int main() { return f() + g(); }' > %t1.cpp
// RUN: echo 'int f() { return 1; }' > %t2.cpp
// RUN: echo 'int g() { return 2; }' > %t3.cpp
// Three jobs, thus integrated-cc1 is disabled.
// RUN: %clang -fintegrated-cc1 -c %t1.cpp %t2.cpp %t3.cpp -### 2>&1 | FileCheck %s --check-prefix=NO
// -fintegrated-cc1 works with cc1as.
// macOS triples have an extra -x assembler-with-cpp job so (in-process) is not triggered.
// RUN: echo > %t.s
// RUN: %clang --target=x86_64-linux -fintegrated-cc1 -fintegrated-as -c -### %t.s 2>&1 | FileCheck %s --check-prefix=YES
// RUN: %clang --target=x86_64-linux -fno-integrated-cc1 -c -### %t.s 2>&1 | FileCheck %s --check-prefix=NO
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