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96122b5b71
C++20 modules Previously, we banned the check for input files from C++20 modules since we thought the BMI from C++20 modules should be a standalone artifact. However, during the recent experiment with clangd for modules, I find it is necessary to tell whether or not a BMI is out-of-date by checking the input files especially for language servers. So this patch brings a header search option ForceCheckCXX20ModulesInputFiles to allow the tools (concretly, clangd) to check the input files from BMI.
34 lines
1.2 KiB
C++
34 lines
1.2 KiB
C++
// RUN: rm -rf %t
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// RUN: split-file %s %t
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//
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// RUN: %clang_cc1 -std=c++20 -triple %itanium_abi_triple \
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// RUN: %t/a.cppm -emit-module-interface -o %t/a.pcm
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//
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// RUN: echo "inline int bar = 46;" >> %t/foo.h
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// RUNX: %clang_cc1 -std=c++20 -triple %itanium_abi_triple \
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// RUNX: %t/use.cpp -fmodule-file=a=%t/a.pcm -verify -fsyntax-only
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// RUNX: %clang_cc1 -std=c++20 -triple %itanium_abi_triple \
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// RUNX: %t/a.pcm -emit-llvm -o - | FileCheck %t/a.ll
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//
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// RUN: echo "export int var = 43;" >> %t/a.cppm
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// RUNX: %clang_cc1 -std=c++20 -triple %itanium_abi_triple \
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// RUNX: %t/use.cpp -fmodule-file=a=%t/a.pcm -verify -fsyntax-only
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// RUNX: %clang_cc1 -std=c++20 -triple %itanium_abi_triple \
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// RUNX: %t/a.pcm -emit-llvm -o - | FileCheck %t/a.ll
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//
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// RUN: not %clang_cc1 -std=c++20 -triple %itanium_abi_triple \
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// RUN: -fforce-check-cxx20-modules-input-files %t/a.pcm \
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// RUN: -emit-llvm -o - 2>&1 | FileCheck %t/a.cppm -check-prefix=CHECK-FAILURE
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//--- foo.h
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inline int foo = 43;
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//--- a.cppm
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// expected-no-diagnostics
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module;
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#include "foo.h"
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export module a;
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export using ::foo;
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// CHECK-FAILURE: fatal error:{{.*}}a.cppm' has been modified since the AST file {{.*}}was built
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