derek.holloway
7502bf64a4
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113 lines
4.5 KiB
LLVM
113 lines
4.5 KiB
LLVM
; RUN: opt -mtriple x86_64-unknown-windows-msvc -passes=objc-arc -S -o - %s | FileCheck %s
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; bool g();
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; id h();
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;
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; void f() {
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; id a = nullptr;
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; if (g())
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; a = h();
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; id b = nullptr;
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; g();
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; }
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declare zeroext i1 @"\01?g@@YA_NXZ"() local_unnamed_addr
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declare ptr @"\01?h@@YAPEAUobjc_object@@XZ"() local_unnamed_addr
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declare dllimport void @llvm.objc.release(ptr) local_unnamed_addr
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declare dllimport ptr @llvm.objc.retainAutoreleasedReturnValue(ptr returned) local_unnamed_addr
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declare i32 @__CxxFrameHandler3(...)
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define void @"\01?f@@YAXXZ"() local_unnamed_addr personality ptr @__CxxFrameHandler3 {
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entry:
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%call = invoke zeroext i1 @"\01?g@@YA_NXZ"()
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to label %invoke.cont unwind label %ehcleanup6
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invoke.cont: ; preds = %entry
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br i1 %call, label %if.then, label %if.end
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if.then: ; preds = %invoke.cont
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%call2 = invoke ptr @"\01?h@@YAPEAUobjc_object@@XZ"()
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to label %invoke.cont1 unwind label %ehcleanup6
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invoke.cont1: ; preds = %if.then
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%0 = tail call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call2)
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tail call void @llvm.objc.release(ptr null), !clang.imprecise_release !1
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br label %if.end
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if.end: ; preds = %invoke.cont1, %invoke.cont
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%a.0 = phi ptr [ %call2, %invoke.cont1 ], [ null, %invoke.cont ]
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%call4 = invoke zeroext i1 @"\01?g@@YA_NXZ"()
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to label %invoke.cont3 unwind label %ehcleanup
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invoke.cont3: ; preds = %if.end
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tail call void @llvm.objc.release(ptr null), !clang.imprecise_release !1
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tail call void @llvm.objc.release(ptr %a.0), !clang.imprecise_release !1
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ret void
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ehcleanup: ; preds = %if.end
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%1 = cleanuppad within none []
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call void @llvm.objc.release(ptr null) [ "funclet"(token %1) ], !clang.imprecise_release !1
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cleanupret from %1 unwind label %ehcleanup6
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ehcleanup6: ; preds = %ehcleanup, %if.then, %entry
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%a.1 = phi ptr [ %a.0, %ehcleanup ], [ null, %if.then ], [ null, %entry ]
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%2 = cleanuppad within none []
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call void @llvm.objc.release(ptr %a.1) [ "funclet"(token %2) ], !clang.imprecise_release !1
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cleanupret from %2 unwind to caller
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}
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; CHECK-LABEL: ?f@@YAXXZ
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; CHECK: call void @llvm.objc.release(ptr {{.*}}) {{.*}}[ "funclet"(token %1) ]
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; CHECK-NOT: call void @llvm.objc.release(ptr {{.*}}) {{.*}}[ "funclet"(token %2) ]
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define void @"\01?i@@YAXXZ"() local_unnamed_addr personality ptr @__CxxFrameHandler3 {
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entry:
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%call = invoke zeroext i1 @"\01?g@@YA_NXZ"()
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to label %invoke.cont unwind label %ehcleanup6
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invoke.cont: ; preds = %entry
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br i1 %call, label %if.then, label %if.end
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if.then: ; preds = %invoke.cont
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%call2 = invoke ptr @"\01?h@@YAPEAUobjc_object@@XZ"()
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to label %invoke.cont1 unwind label %ehcleanup6
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invoke.cont1: ; preds = %if.then
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%0 = tail call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %call2)
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tail call void @llvm.objc.release(ptr null), !clang.imprecise_release !1
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br label %if.end
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if.end: ; preds = %invoke.cont1, %invoke.cont
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%a.0 = phi ptr [ %call2, %invoke.cont1 ], [ null, %invoke.cont ]
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%call4 = invoke zeroext i1 @"\01?g@@YA_NXZ"()
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to label %invoke.cont3 unwind label %ehcleanup
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invoke.cont3: ; preds = %if.end
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tail call void @llvm.objc.release(ptr null), !clang.imprecise_release !1
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tail call void @llvm.objc.release(ptr %a.0), !clang.imprecise_release !1
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ret void
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ehcleanup: ; preds = %if.end
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%1 = cleanuppad within none []
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call void @llvm.objc.release(ptr null) [ "funclet"(token %1) ], !clang.imprecise_release !1
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br label %ehcleanup.1
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ehcleanup.1:
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cleanupret from %1 unwind label %ehcleanup6
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ehcleanup6: ; preds = %ehcleanup, %if.then, %entry
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%a.1 = phi ptr [ %a.0, %ehcleanup.1 ], [ null, %if.then ], [ null, %entry ]
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%2 = cleanuppad within none []
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call void @llvm.objc.release(ptr %a.1) [ "funclet"(token %2) ], !clang.imprecise_release !1
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cleanupret from %2 unwind to caller
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}
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; CHECK-LABEL: ?i@@YAXXZ
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; CHECK: call void @llvm.objc.release(ptr {{.*}}) {{.*}}[ "funclet"(token %1) ]
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; CHECK-NOT: call void @llvm.objc.release(ptr {{.*}}) {{.*}}[ "funclet"(token %2) ]
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!1 = !{}
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