1RUN: rm -rf %t
2REQUIRES: x86-registered-target
3
4RUN: %clang_cc1 -triple=x86_64-linux-gnu -fmodules-codegen -x c++ -fmodules -emit-module -fmodule-name=foo %S/Inputs/codegen-opt/foo.modulemap -o %t/foo.pcm
5RUN: %clang_cc1 -triple=x86_64-linux-gnu -fmodules-codegen -x c++ -fmodules -emit-module -fmodule-name=bar %S/Inputs/codegen-opt/bar.modulemap -o %t/bar.pcm -fmodule-file=%t/foo.pcm
6
7RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - %t/foo.pcm | FileCheck --check-prefix=FOO %s
8RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - %t/bar.pcm -fmodule-file=%t/foo.pcm | FileCheck --check-prefix=BAR-CMN --check-prefix=BAR %s
9RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - -fmodules -fmodule-file=%t/foo.pcm -fmodule-file=%t/bar.pcm %S/Inputs/codegen-opt/use.cpp | FileCheck --check-prefix=USE-CMN --check-prefix=USE %s
10
11RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - -O2 -disable-llvm-passes %t/foo.pcm | FileCheck --check-prefix=FOO %s
12RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - -O2 -disable-llvm-passes %t/bar.pcm -fmodule-file=%t/foo.pcm | FileCheck --check-prefix=BAR-CMN --check-prefix=BAR-OPT %s
13RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - -O2 -disable-llvm-passes -fmodules -fmodule-file=%t/foo.pcm -fmodule-file=%t/bar.pcm %S/Inputs/codegen-opt/use.cpp | FileCheck --check-prefix=USE-CMN --check-prefix=USE-OPT %s
14
15FOO-NOT: comdat
16FOO: $_Z3foov = comdat any
17FOO: $_Z4foo2v = comdat any
18FOO: $_ZZ3foovE1i = comdat any
19FOO: @_ZZ3foovE1i = linkonce_odr global i32 0, comdat
20FOO-NOT: {{comdat|define|declare}}
21FOO: define{{.*}} void @_Z7foo_extv()
22FOO-NOT: {{define|declare}}
23FOO: define weak_odr void @_Z3foov() #{{[0-9]+}} comdat
24FOO-NOT: {{define|declare}}
25FOO: declare void @_Z2f1Ri(i32*
26FOO-NOT: {{define|declare}}
27
28Internal functions are not modularly code generated - they are
29internal wherever they're used. This might not be ideal, but
30continues to workaround/support some oddities that backwards
31compatible modules have seen and supported in the wild.  To remove
32the duplication here, the internal functions would need to be
33promoted to weak_odr, placed in comdat and given a new mangling -
34this would be needed for the C++ Modules TS anyway.
35FOO: define internal void @_ZL2f2v() #{{[0-9]+}}
36FOO-NOT: {{define|declare}}
37
38FOO: define weak_odr void @_Z4foo2v() #{{[0-9]+}} comdat
39FOO-NOT: {{define|declare}}
40
41
42BAR-CMN-NOT: comdat
43BAR-CMN: $_Z3barv = comdat any
44BAR-OPT: @_ZZ3foovE1i = linkonce_odr global i32 0, comdat
45BAR-CMN-NOT: {{comdat|define|declare}}
46BAR-CMN: define weak_odr void @_Z3barv() #{{[0-9]+}} comdat
47BAR-CMN-NOT: {{define|declare}}
48BAR: declare void @_Z3foov()
49Include all the available_externally definitions required for bar (foo -> f2)
50BAR-OPT: define available_externally void @_Z3foov()
51BAR-CMN-NOT: {{define|declare}}
52BAR-OPT: declare void @_Z2f1Ri(i32*
53BAR-OPT-NOT: {{define|declare}}
54BAR-OPT: define internal void @_ZL2f2v()
55BAR-OPT-NOT: {{define|declare}}
56
57
58USE-OPT: @_ZZ3foovE1i = linkonce_odr global i32 0, comdat
59USE-CMN-NOT: {{comdat|define|declare}}
60USE-CMN: define{{.*}} i32 @main()
61USE-CMN-NOT: {{define|declare}}
62USE: declare void @_Z3barv()
63Include all the available_externally definitions required for main (bar -> foo -> f2)
64USE-OPT: define available_externally void @_Z3barv()
65USE-CMN-NOT: {{define|declare}}
66USE-OPT: define available_externally void @_Z3foov()
67USE-OPT-NOT: {{define|declare}}
68USE-OPT: declare void @_Z2f1Ri(i32*
69USE-OPT-NOT: {{define|declare}}
70USE-OPT: define internal void @_ZL2f2v()
71USE-OPT-NOT: {{define|declare}}
72