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