7ec342ba16
ASTWrite would write some special records for the consumer of the AST can get the information easily. This is fine. But currently all the special records are written eagerly, which is conflicting with reduced BMI. In reduced BMI, we hope to write things as less as possible. It is not a goal for reduced BMI to retain all the informations. So in this patch we won't record the special declarations eagerly before we starting write. But only writing the sepcial records after we writes decls and types, then only the reached declarations will be collected.
28 lines
740 B
C++
28 lines
740 B
C++
// Test that we won't write additional information from std namespace by default
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// into the Reduced BMI if the module purview is empty.
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//
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// RUN: rm -rf %t
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// RUN: mkdir -p %t
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// RUN: split-file %s %t
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//
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// RUN: %clang_cc1 -std=c++20 %t/A.cppm -emit-reduced-module-interface -o %t/A.pcm
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// RUN: llvm-bcanalyzer --dump --disable-histogram --show-binary-blobs %t/A.pcm > %t/A.dump
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// RUN: cat %t/A.dump | FileCheck %t/A.cppm
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//--- std.h
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namespace std {
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typedef decltype(sizeof(0)) size_t;
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enum class align_val_t : std::size_t {};
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class bad_alloc { };
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}
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//--- A.cppm
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module;
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#include "std.h"
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export module A;
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// CHECK-NOT: <DECL_NAMESPACE
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// CHECK-NOT: <DECL_CONTEXT_LEXICAL
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// CHECK-NOT: <DELAYED_NAMESPACE_LEXICAL_VISIBLE_RECORD
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