forked from OSchip/llvm-project
49 lines
1.2 KiB
LLVM
49 lines
1.2 KiB
LLVM
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; 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 | FileCheck %s
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; RUN: opt < %s -passes='cgscc(inline)' -S | FileCheck %s
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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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entry:
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invoke void @might_throw()
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to label %cont unwind label %exc
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cont:
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ret i32 0
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exc:
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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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; CHECK-LABEL: define i32 @caller()
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entry:
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%X = invoke i32 @callee()
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to label %cont unwind label %Handler
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; CHECK-NOT: @callee
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; CHECK: invoke void @might_throw()
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; At this point we just check that the rest of the function does not 'resume'
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; at any point and instead the inlined resume is threaded into normal control
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; flow.
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; CHECK-NOT: resume
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cont:
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ret i32 %X
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Handler:
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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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