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1; RUN: llvm-link %s %p/Inputs/empty-objc.ll -S | FileCheck %s2 3; It tests whether Swift bitcode can be successfully linked with Objecitive-C bitcode.4; During the process, the IRUpgrader turns a i32 type "Objective-C Garbage Collection"5; into i8 value. If the higher bits are set, it adds the module flag for swift info.6 7target triple = "x86_64-apple-macosx10.15.0"8 9@__swift_reflection_version = linkonce_odr hidden constant i16 310@llvm.used = appending global [1 x ptr] [ptr @__swift_reflection_version], section "llvm.metadata", align 811 12define i32 @main(i32 %0, ptr %1) #0 {13 ret i32 014}15 16attributes #0 = { "frame-pointer"="all" "target-cpu"="penryn" "target-features"="+cx16,+fxsr,+mmx,+sahf,+sse,+sse2,+sse3,+sse4.1,+ssse3,+x87" }17 18!llvm.module.flags = !{!0, !1, !2, !3, !4, !5, !6, !7, !8}19!swift.module.flags = !{!9}20!llvm.linker.options = !{!10, !11, !12}21!llvm.asan.globals = !{!13}22 23!0 = !{i32 2, !"SDK Version", [2 x i32] [i32 10, i32 15]}24!1 = !{i32 1, !"Objective-C Version", i32 2}25!2 = !{i32 1, !"Objective-C Image Info Version", i32 0}26!3 = !{i32 1, !"Objective-C Image Info Section", !"__DATA,__objc_imageinfo,regular,no_dead_strip"}27!4 = !{i32 4, !"Objective-C Garbage Collection", i32 83953408}28!5 = !{i32 1, !"Objective-C Class Properties", i32 64}29!6 = !{i32 1, !"wchar_size", i32 4}30!7 = !{i32 7, !"PIC Level", i32 2}31!8 = !{i32 1, !"Swift Version", i32 7}32!9 = !{!"standard-library", i1 false}33!10 = !{!"-lswiftSwiftOnoneSupport"}34!11 = !{!"-lswiftCore"}35!12 = !{!"-lobjc"}36!13 = !{ptr @llvm.used, null, null, i1 false, i1 true}37 38; CHECK: !{{[0-9]+}} = !{i32 1, !"Objective-C Garbage Collection", i8 0}39; CHECK: !{{[0-9]+}} = !{i32 1, !"Swift ABI Version", i32 7}40; CHECK: !{{[0-9]+}} = !{i32 1, !"Swift Major Version", i8 5}41; CHECK: !{{[0-9]+}} = !{i32 1, !"Swift Minor Version", i8 1}42