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690248bf52
If the landingpad of the invoke is using a personality function that catches asynch exceptions, then it can catch a trap. Also add some landingpads to invalid LLVM IR test cases that lack them. Over-the-shoulder reviewed by David Majnemer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228782 91177308-0d34-0410-b5e6-96231b3b80d8
32 lines
811 B
LLVM
32 lines
811 B
LLVM
; RUN: opt -S -prune-eh < %s | FileCheck %s
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; Don't remove invokes of nounwind functions if the personality handles async
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; exceptions. The @div function in this test can fault, even though it can't
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; throw a synchronous exception.
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define i32 @div(i32 %n, i32 %d) nounwind {
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entry:
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%div = sdiv i32 %n, %d
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ret i32 %div
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}
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define i32 @main() nounwind {
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entry:
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%call = invoke i32 @div(i32 10, i32 0)
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to label %__try.cont unwind label %lpad
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lpad:
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%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
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catch i8* null
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br label %__try.cont
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__try.cont:
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%retval.0 = phi i32 [ %call, %entry ], [ 0, %lpad ]
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ret i32 %retval.0
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}
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; CHECK-LABEL: define i32 @main()
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; CHECK: invoke i32 @div(i32 10, i32 0)
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declare i32 @__C_specific_handler(...)
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