dc4e85bd79
Close https://github.com/llvm/llvm-project/issues/62707 As we discussed before, we'll forbid the use of implicit generated path for C++20 modules. And as I mentioned in https://github.com/llvm/llvm-project/issues/62707, we've emitted a warning for clang17 and we'll make it a hard error in clang18. And the patch addresses the decision.
52 lines
1.7 KiB
C++
52 lines
1.7 KiB
C++
// RUN: rm -rf %t
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// RUN: mkdir %t
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// RUN: split-file %s %t
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// RUN: %clang_cc1 -std=c++20 -emit-module-interface -triple %itanium_abi_triple %t/parta.cppm -o %t/mod-parta.pcm
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// RUN: %clang_cc1 -std=c++20 -emit-module-interface -triple %itanium_abi_triple %t/partb.cppm -o %t/mod-partb.pcm
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// RUN: %clang_cc1 -std=c++20 -emit-module-interface -triple %itanium_abi_triple %t/mod.cppm \
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// RUN: -fprebuilt-module-path=%t -o %t/mod.pcm
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// RUN: %clang_cc1 -std=c++20 -triple %itanium_abi_triple %t/mod.pcm -S -emit-llvm -disable-llvm-passes -o - \
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// RUN: -fprebuilt-module-path=%t | FileCheck %t/mod.cppm
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// RUN: %clang_cc1 -std=c++20 -O2 -emit-module-interface -triple %itanium_abi_triple \
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// RUN: -fprebuilt-module-path=%t %t/mod.cppm -o %t/mod.pcm
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// RUN: %clang_cc1 -std=c++20 -O2 -triple %itanium_abi_triple %t/mod.pcm -S -emit-llvm \
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// RUN: -fprebuilt-module-path=%t -disable-llvm-passes -o - | FileCheck %t/mod.cppm -check-prefix=CHECK-OPT
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//--- parta.cppm
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export module mod:parta;
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export int a = 43;
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export int foo() {
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return 3 + a;
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}
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//--- partb.cppm
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module mod:partb;
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int b = 43;
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int bar() {
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return 43 + b;
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}
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//--- mod.cppm
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export module mod;
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import :parta;
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import :partb;
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export int use() {
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return foo() + bar() + a + b;
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}
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// FIXME: The definition of the variables shouldn't be exported too.
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// CHECK: @_ZW3mod1a = available_externally global
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// CHECK: @_ZW3mod1b = available_externally global
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// CHECK: declare{{.*}} i32 @_ZW3mod3foov
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// CHECK: declare{{.*}} i32 @_ZW3mod3barv
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// CHECK-OPT: @_ZW3mod1a = available_externally global
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// CHECK-OPT: @_ZW3mod1b = available_externally global
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// CHECK-OPT: declare{{.*}} i32 @_ZW3mod3foov
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// CHECK-OPT: declare{{.*}} i32 @_ZW3mod3barv
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