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37 lines
1.1 KiB
37 lines
1.1 KiB
4 months ago
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; Test that if an invoked function is inlined, and if that function cannot
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; throw, that the dead handler is now unreachable.
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; RUN: opt < %s -inline -simplifycfg -S | \
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; RUN: not grep UnreachableExceptionHandler
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declare void @might_throw()
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define internal i32 @callee() personality i32 (...)* @__gxx_personality_v0 {
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invoke void @might_throw( )
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to label %cont unwind label %exc
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cont: ; preds = %0
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ret i32 0
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exc: ; preds = %0
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%exn = landingpad {i8*, i32}
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cleanup
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ret i32 1
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}
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; caller returns true if might_throw throws an exception... callee cannot throw.
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define i32 @caller() personality i32 (...)* @__gxx_personality_v0 {
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%X = invoke i32 @callee( )
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to label %cont unwind label %UnreachableExceptionHandler ; <i32> [#uses=1]
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cont: ; preds = %0
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ret i32 %X
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UnreachableExceptionHandler: ; preds = %0
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%exn = landingpad {i8*, i32}
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cleanup
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ret i32 -1
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}
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declare i32 @__gxx_personality_v0(...)
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