mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-02-07 14:33:15 +00:00
cc714e2142
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 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239940 91177308-0d34-0410-b5e6-96231b3b80d8
39 lines
1.1 KiB
LLVM
39 lines
1.1 KiB
LLVM
; Test that any rethrown exceptions in an inlined function are automatically
|
|
; turned into branches to the invoke destination.
|
|
|
|
; RUN: opt < %s -inline -S | not grep unwind$
|
|
|
|
declare void @might_throw()
|
|
|
|
define internal i32 @callee() personality i32 (...)* @__gxx_personality_v0 {
|
|
invoke void @might_throw( )
|
|
to label %cont unwind label %exc
|
|
|
|
cont: ; preds = %0
|
|
ret i32 0
|
|
|
|
exc: ; preds = %0a
|
|
; This just rethrows the exception!
|
|
%exn = landingpad {i8*, i32}
|
|
cleanup
|
|
resume { i8*, i32 } %exn
|
|
}
|
|
|
|
; caller returns true if might_throw throws an exception... which gets
|
|
; propagated by callee.
|
|
define i32 @caller() personality i32 (...)* @__gxx_personality_v0 {
|
|
%X = invoke i32 @callee( )
|
|
to label %cont unwind label %Handler ; <i32> [#uses=1]
|
|
|
|
cont: ; preds = %0
|
|
ret i32 %X
|
|
|
|
Handler: ; preds = %0
|
|
; This consumes an exception thrown by might_throw
|
|
%exn = landingpad {i8*, i32}
|
|
cleanup
|
|
ret i32 1
|
|
}
|
|
|
|
declare i32 @__gxx_personality_v0(...)
|