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6bf371c84a
In the case that the CallInst that is being moved has an associated operand bundle which is a funclet, the move will construct an invalid instruction. The new site will have a different token and needs to be reassociated with the new instruction. Unfortunately, there is no way to alter the bundle after the construction of the instruction. Replace the call instruction cloning with a custom helper to clone the instruction and reassociate the funclet token. llvm-svn: 327336
113 lines
4.4 KiB
LLVM
113 lines
4.4 KiB
LLVM
; RUN: opt -mtriple x86_64-unknown-windows-msvc -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 i8* @"\01?h@@YAPEAUobjc_object@@XZ"() local_unnamed_addr
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declare dllimport void @objc_release(i8*) local_unnamed_addr
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declare dllimport i8* @objc_retainAutoreleasedReturnValue(i8* returned) local_unnamed_addr
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declare i32 @__CxxFrameHandler3(...)
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define void @"\01?f@@YAXXZ"() local_unnamed_addr personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
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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 i8* @"\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 i8* @objc_retainAutoreleasedReturnValue(i8* %call2)
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tail call void @objc_release(i8* 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 i8* [ %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 @objc_release(i8* null), !clang.imprecise_release !1
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tail call void @objc_release(i8* %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 @objc_release(i8* 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 i8* [ %a.0, %ehcleanup ], [ null, %if.then ], [ null, %entry ]
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%2 = cleanuppad within none []
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call void @objc_release(i8* %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 @objc_release(i8* {{.*}}) {{.*}}[ "funclet"(token %1) ]
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; CHECK-NOT: call void @objc_release(i8* {{.*}}) {{.*}}[ "funclet"(token %2) ]
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define void @"\01?i@@YAXXZ"() local_unnamed_addr personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
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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 i8* @"\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 i8* @objc_retainAutoreleasedReturnValue(i8* %call2)
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tail call void @objc_release(i8* 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 i8* [ %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 @objc_release(i8* null), !clang.imprecise_release !1
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tail call void @objc_release(i8* %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 @objc_release(i8* 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 i8* [ %a.0, %ehcleanup.1 ], [ null, %if.then ], [ null, %entry ]
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%2 = cleanuppad within none []
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call void @objc_release(i8* %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 @objc_release(i8* {{.*}}) {{.*}}[ "funclet"(token %1) ]
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; CHECK-NOT: call void @objc_release(i8* {{.*}}) {{.*}}[ "funclet"(token %2) ]
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!1 = !{}
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