d64b83266b
When creating a call to storeStrong in ObjCARCContract, ensure the call gets the correct funclet token, otherwise WinEHPrepare will turn the call (and all subsequent instructions) into unreachable. We already have logic to do this for the ARC autorelease elision marker; factor that out into a common function that's used for both. These are the only two places in this transform that create call instructions. Differential Revision: https://reviews.llvm.org/D45857 llvm-svn: 330487
38 lines
1.3 KiB
LLVM
38 lines
1.3 KiB
LLVM
; RUN: opt -mtriple=i686-unknown-windows-msvc -objc-arc-contract -S -o - %s | FileCheck %s
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declare void @f()
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declare i32 @__CxxFrameHandler3(...)
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declare dllimport i8* @objc_retain(i8*)
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declare dllimport i8* @objc_retainAutoreleasedReturnValue(i8*)
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declare dllimport void @objc_release(i8*)
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@x = external global i8*
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define void @g(i8* %p) personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
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invoke void @f() to label %invoke.cont unwind label %ehcleanup
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invoke.cont:
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%call = tail call i8* @objc_retain(i8* %p) nounwind
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%tmp = load i8*, i8** @x, align 4
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store i8* %call, i8** @x, align 4
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tail call void @objc_release(i8* %tmp) nounwind
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ret void
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ehcleanup:
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%1 = cleanuppad within none []
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%call1 = tail call i8* @objc_retain(i8* %p) nounwind [ "funclet"(token %1) ]
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%tmp1 = load i8*, i8** @x, align 4
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store i8* %call1, i8** @x, align 4
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tail call void @objc_release(i8* %tmp1) nounwind [ "funclet"(token %1) ]
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cleanupret from %1 unwind to caller
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}
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; CHECK-LABEL: invoke.cont:
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; CHECK: tail call void @objc_storeStrong(i8** @x, i8* %p) #0{{$}}
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; CHECK: ret void
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; CHECK-LABEL: ehcleanup:
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; CHECK: %1 = cleanuppad within none []
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; CHECK: tail call void @objc_storeStrong(i8** @x, i8* %p) #0 [ "funclet"(token %1) ]
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; CHECK: cleanupret from %1 unwind to caller
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