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c8b1f095a3
The personality routine currently lives in the LandingPadInst. This isn't desirable because: - All LandingPadInsts in the same function must have the same personality routine. This means that each LandingPadInst beyond the first has an operand which produces no additional information. - There is ongoing work to introduce EH IR constructs other than LandingPadInst. Moving the personality routine off of any one particular Instruction and onto the parent function seems a lot better than have N different places a personality function can sneak onto an exceptional function. Differential Revision: http://reviews.llvm.org/D10429 llvm-svn: 239940
39 lines
1.1 KiB
LLVM
39 lines
1.1 KiB
LLVM
; Test that any rethrown exceptions in an inlined function are automatically
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; turned into branches to the invoke destination.
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; RUN: opt < %s -inline -S | not grep unwind$
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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 = %0a
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; This just rethrows the exception!
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%exn = landingpad {i8*, i32}
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cleanup
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resume { i8*, i32 } %exn
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}
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; caller returns true if might_throw throws an exception... which gets
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; propagated by callee.
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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 %Handler ; <i32> [#uses=1]
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cont: ; preds = %0
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ret i32 %X
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Handler: ; preds = %0
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; This consumes an exception thrown by might_throw
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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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