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This is important, for example, for linking correctly to the C++ standard library on Windows, which uses `#pragma comment(lib, ...)` in its headers to specify the correct library to link against.
21 lines
1.0 KiB
Swift
21 lines
1.0 KiB
Swift
// Tests that a `#pragma comment(lib, ...)` in a C header imported as a module
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// causes a corresponding `/DEFAULTLIB` directive to be emitted.
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//
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// We test that this is true also for C headers included transitively from
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// another C header.
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// RUN: %swift -module-name Swift -target x86_64-unknown-windows-msvc -I %S/Inputs -emit-ir %s -parse-stdlib -parse-as-library -disable-legacy-type-info | %FileCheck %s -check-prefix=CHECK-MSVC-IR
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// RUN: %swift -module-name Swift -target x86_64-unknown-windows-msvc -I %S/Inputs -S %s -parse-stdlib -parse-as-library -disable-legacy-type-info | %FileCheck %s -check-prefix=CHECK-MSVC-ASM
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// REQUIRES: CODEGENERATOR=X86
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import AutolinkCoffCPragma
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// CHECK-MSVC-IR: !llvm.linker.options = !{!{{[0-9]+}}, !{{[0-9]+}}}
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// CHECK-MSVC-IR-DAG: !{{[0-9]+}} = !{!"/DEFAULTLIB:module.lib"}
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// CHECK-MSVC-IR-DAG: !{{[0-9]+}} = !{!"/DEFAULTLIB:transitive-module.lib"}
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// CHECK-MSVC-ASM: .section .drectve
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// CHECK-MSVC-ASM-DAG: .ascii " /DEFAULTLIB:module.lib"
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// CHECK-MSVC-ASM-DAG: .ascii " /DEFAULTLIB:transitive-module.lib"
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