0ea3d88bdb
Including select builtin headers in system modules is a workaround for module cycles, primarily in Apple's Darwin module that includes all of its C standard library headers. The workaround is problematic because it doesn't include all of the builtin headers (inttypes.h is notably absent), and it also doesn't include C++ headers. The straightforward for for this is to make top level modules for all of the C standard library headers and unwind.h in C++, clang, and the OS. However, doing so in clang before the OS modules are ready re-introduces the module cycles. Add a -fbuiltin-headers-in-system-modules option to control if the special builtin headers belong to system modules or builtin modules. Pass the option by default for Apple. Reviewed By: ChuanqiXu, Bigcheese, benlangmuir Differential Revision: https://reviews.llvm.org/D159483
11 lines
674 B
Objective-C
11 lines
674 B
Objective-C
// UNSUPPORTED: target={{.*}}-zos{{.*}}, target={{.*}}-aix{{.*}}
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// RUN: rm -rf %t
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// RUN: mkdir %t
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// RUN: %clang_cc1 -x objective-c-header -emit-pch %S/Inputs/pch-used.h -o %t/pch-used.h.pch -fmodules -fimplicit-module-maps -fbuiltin-headers-in-system-modules -fmodules-cache-path=%t/cache -O0 -isystem %S/Inputs/System/usr/include
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// RUN: %clang_cc1 %s -include-pch %t/pch-used.h.pch -fmodules -fimplicit-module-maps -fbuiltin-headers-in-system-modules -fmodules-cache-path=%t/cache -O0 -isystem %S/Inputs/System/usr/include -emit-llvm -o - | FileCheck %s
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void f(void) { SPXTrace(); }
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void g(void) { double x = DBL_MAX; }
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// CHECK: define internal {{.*}}void @SPXTrace
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