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2e31412faa
Summary: This intrinsic can be used to extract a pointer to the exception caught by a given catchpad. Its argument has token type and must be a `catchpad`. Also clarify ExtendingLLVM documentation regarding overloaded intrinsics. Reviewers: majnemer, andrew.w.kaylor, sanjoy, rnk Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D12533 llvm-svn: 246752
47 lines
1.3 KiB
LLVM
47 lines
1.3 KiB
LLVM
; RUN: opt -lint -disable-output < %s
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; This test is meant to prove that the verifier does not report errors for correct
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; use of the llvm.eh.exceptionpointer intrinsic.
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target triple = "x86_64-pc-windows-msvc"
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declare i8* @llvm.eh.exceptionpointer.p0i8(token)
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declare i8 addrspace(1)* @llvm.eh.exceptionpointer.p1i8(token)
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declare void @f(...)
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define void @test1() personality i32 (...)* @__CxxFrameHandler3 {
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entry:
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invoke void (...) @f(i32 1)
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to label %exit unwind label %catchpad
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catchpad:
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%catch = catchpad [i32 1] to label %do_catch unwind label %catchend
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do_catch:
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%exn = call i8* @llvm.eh.exceptionpointer.p0i8(token %catch)
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call void (...) @f(i8* %exn)
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catchret %catch to label %exit
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catchend:
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catchendpad unwind to caller
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exit:
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ret void
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}
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define void @test2() personality i32 (...)* @ProcessManagedException {
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entry:
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invoke void (...) @f(i32 1)
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to label %exit unwind label %catchpad
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catchpad:
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%catch = catchpad [i32 1] to label %do_catch unwind label %catchend
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do_catch:
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%exn = call i8 addrspace(1)* @llvm.eh.exceptionpointer.p1i8(token %catch)
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call void (...) @f(i8 addrspace(1)* %exn)
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catchret %catch to label %exit
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catchend:
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catchendpad unwind to caller
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exit:
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ret void
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}
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declare i32 @__CxxFrameHandler3(...)
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declare i32 @ProcessManagedException(...)
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