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; RUN: not llvm-as < %s -o /dev/null 2>&1 | FileCheck %s
; PR1042
define i32 @foo() {
; CHECK: The unwind destination does not have a landingpad instruction
%A = invoke i32 @foo( )
to label %L unwind label %L ; <i32> [#uses=1]
L: ; preds = %0, %0
ret i32 %A
}
; PR1042
define i32 @bar() {
br i1 false, label %L1, label %L2
L1: ; preds = %0
%A = invoke i32 @bar( )
to label %L unwind label %L ; <i32> [#uses=1]
L2: ; preds = %0
br label %L
L: ; preds = %L2, %L1, %L1
; CHECK: The unwind destination does not have a landingpad instruction
; CHECK: Instruction does not dominate all uses
ret i32 %A
}
declare i32 @__gxx_personality_v0(...)
declare void @llvm.donothing()
declare void @llvm.trap()
declare i8 @llvm.expect.i8(i8,i8)
declare i32 @fn(i8 (i8, i8)*)
define void @f1() {
entry:
; OK
invoke void @llvm.donothing()
to label %conta unwind label %contb
conta:
ret void
contb:
%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
filter [0 x i8*] zeroinitializer
ret void
}
define i8 @f2() {
entry:
; CHECK: Cannot invoke an intrinsinc other than donothing
invoke void @llvm.trap()
to label %cont unwind label %lpad
cont:
ret i8 3
lpad:
%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
filter [0 x i8*] zeroinitializer
ret i8 2
}
define i32 @f3() {
entry:
; CHECK: Cannot take the address of an intrinsic
%call = call i32 @fn(i8 (i8, i8)* @llvm.expect.i8)
ret i32 %call
}
define void @f4() {
entry:
invoke void @llvm.donothing()
to label %cont unwind label %cont
cont:
; CHECK: Block containing LandingPadInst must be jumped to only by the unwind edge of an invoke.
%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
filter [0 x i8*] zeroinitializer
ret void
}
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