255a163e51
As documented in 20.x, we'd like to keep reduced BMI off by default for 1~2 versions. And now we're in 22.x. I rarely receive bug reports for reduced BMI. I am not sure about the reason. Maybe not a lot of people are using it. Or it is really stable enough. And also, we've been enabling the reduced BMI internally for roughly half a year. So I think it's the time to move on. See the document changes for other information.
93 lines
3.8 KiB
C++
93 lines
3.8 KiB
C++
// It is annoying to handle different slash direction
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// in Windows and Linux. So we disable the test on Windows
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// here.
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// REQUIRES: !system-windows
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// On AIX, the default output for `-c` may be `.s` instead of `.o`,
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// which makes the test fail. So disable the test on AIX.
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// UNSUPPORTED: system-aix
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//
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// RUN: rm -rf %t && split-file %s %t && cd %t
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//
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// RUN: %clang -std=c++20 Hello.cppm -fmodule-output=Hello.pcm \
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// RUN: -fexperimental-modules-reduced-bmi -c -o Hello.o -### 2>&1 | FileCheck Hello.cppm
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//
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// RUN: %clang -std=c++20 Hello.cppm \
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// RUN: -fexperimental-modules-reduced-bmi -c -o Hello.o -### 2>&1 | \
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// RUN: FileCheck Hello.cppm --check-prefix=CHECK-UNSPECIFIED
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//
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// RUN: %clang -std=c++20 Hello.cppm \
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// RUN: -fexperimental-modules-reduced-bmi -c -### 2>&1 | \
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// RUN: FileCheck Hello.cppm --check-prefix=CHECK-NO-O
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//
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// RUN: %clang -std=c++20 Hello.cppm \
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// RUN: -fexperimental-modules-reduced-bmi -c -o AnotherName.o -### 2>&1 | \
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// RUN: FileCheck Hello.cppm --check-prefix=CHECK-ANOTHER-NAME
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//
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// RUN: %clang -std=c++20 Hello.cppm --precompile -fexperimental-modules-reduced-bmi \
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// RUN: -o Hello.full.pcm -### 2>&1 | FileCheck Hello.cppm \
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// RUN: --check-prefix=CHECK-EMIT-MODULE-INTERFACE
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//
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// RUN: %clang -std=c++20 Hello.cc -fexperimental-modules-reduced-bmi -Wall -Werror \
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// RUN: -c -o Hello.o -### 2>&1 | FileCheck Hello.cc
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//
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// RUN: %clang -std=c++20 Hello.cppm -fmodule-output=Hello.pcm \
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// RUN: -fmodules-reduced-bmi -c -o Hello.o -### 2>&1 | FileCheck Hello.cppm
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//
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// RUN: %clang -std=c++20 Hello.cppm \
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// RUN: -fmodules-reduced-bmi -c -o Hello.o -### 2>&1 | \
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// RUN: FileCheck Hello.cppm --check-prefix=CHECK-UNSPECIFIED
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//
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// RUN: %clang -std=c++20 Hello.cppm \
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// RUN: -fmodules-reduced-bmi -c -### 2>&1 | \
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// RUN: FileCheck Hello.cppm --check-prefix=CHECK-NO-O
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//
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// RUN: %clang -std=c++20 Hello.cppm \
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// RUN: -fmodules-reduced-bmi -c -o AnotherName.o -### 2>&1 | \
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// RUN: FileCheck Hello.cppm --check-prefix=CHECK-ANOTHER-NAME
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//
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// RUN: %clang -std=c++20 Hello.cppm --precompile -fmodules-reduced-bmi \
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// RUN: -o Hello.full.pcm -### 2>&1 | FileCheck Hello.cppm \
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// RUN: --check-prefix=CHECK-EMIT-MODULE-INTERFACE
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// RUN: %clang -std=c++20 Hello.cppm --precompile -fmodules-reduced-bmi \
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// RUN: -### 2>&1 | FileCheck Hello.cppm \
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// RUN: --check-prefix=CHECK-OVERRIDE-WARN
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// RUN: %clang -std=c++20 Hello.cppm --precompile -fmodules-reduced-bmi \
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// RUN: -o Hello.pcm -### 2>&1 | FileCheck Hello.cppm \
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// RUN: --check-prefix=CHECK-OVERRIDE-WARN
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//
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// RUN: %clang -std=c++20 Hello.cc -fmodules-reduced-bmi -Wall -Werror \
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// RUN: -c -o Hello.o -### 2>&1 | FileCheck Hello.cc
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//
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// RUN: %clang -std=c++20 Hello.cppm -fmodule-output=Hello.pcm -c -o Hello.o \
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// RUN: -Wno-missing-reduced-bmi -### 2>&1 | FileCheck Hello.cppm -check-prefix=NO_WARN
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//
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// RUN: %clang -std=c++20 Hello.cppm --precompile -o Hello.pcm \
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// RUN: -fno-modules-reduced-bmi -Wno-missing-reduced-bmi -### 2>&1 | \
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// RUN: FileCheck Hello.cppm -check-prefix=NO_WARN
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//--- Hello.cppm
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export module Hello;
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// Test that we won't generate the emit-module-interface as 2 phase compilation model.
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// CHECK-NOT: -emit-module-interface
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// CHECK: "-fmodules-reduced-bmi"
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// CHECK-UNSPECIFIED: -fmodule-output=Hello.pcm
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// CHECK-NO-O: -fmodule-output=Hello.pcm
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// CHECK-ANOTHER-NAME: -fmodule-output=AnotherName.pcm
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// With `-emit-module-interface` specified, we should still see the `-emit-module-interface`
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// flag.
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// CHECK-EMIT-MODULE-INTERFACE: -emit-module-interface
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// CHECK-OVERRIDE-WARN: warning: the implicit output of reduced BMI may be overrided by the output file specified by '--precompile'. {{.*}}-Wreduced-bmi-output-overrided
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// NO_WARN-NOT: warning
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//--- Hello.cc
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// CHECK-NOT: "-fmodules-reduced-bmi"
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