42 changes: 42 additions & 0 deletions llvm/test/Verifier/deoptimize-intrinsic.ll
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; RUN: not opt -verify < %s 2>&1 | FileCheck %s

declare i8 @llvm.experimental.deoptimize.i8(...)
declare void @llvm.experimental.deoptimize.isVoid(...)

declare void @unknown()

define void @f_notail() {
entry:
call void(...) @llvm.experimental.deoptimize.isVoid(i32 0) [ "deopt"() ]
; CHECK: calls to experimental_deoptimize must be followed by a return
call void @unknown()
ret void
}

define void @f_nodeopt() {
entry:
call void(...) @llvm.experimental.deoptimize.isVoid()
; CHECK: experimental_deoptimize must have exactly one "deopt" operand bundle
ret void
}

define void @f_invoke() personality i8 3 {
entry:
invoke void(...) @llvm.experimental.deoptimize.isVoid(i32 0, float 0.0) to label %ok unwind label %not_ok
; CHECK: experimental_deoptimize cannot be invoked

ok:
ret void

not_ok:
%0 = landingpad { i8*, i32 }
filter [0 x i8*] zeroinitializer
ret void
}

define i8 @f_incorrect_return() {
entry:
%val = call i8(...) @llvm.experimental.deoptimize.i8() [ "deopt"() ]
; CHECK: calls to experimental_deoptimize must be followed by a return of the value computed by experimental_deoptimize
ret i8 0
}