mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 11:13:28 +01:00
fccad41366
multiple edges between two blocks is linear. If the caller is iterating all edges leaving a BB that would be a square time algorithm. It is more efficient to have the callers handle that case. Currently the only callers are: * GVN: already avoids the multiple edge case. * Verifier: could only hit this assert when looking at an invalid invoke. Since it already rejects the invoke, just avoid computing the dominance for it. llvm-svn: 162113
80 lines
1.8 KiB
LLVM
80 lines
1.8 KiB
LLVM
; 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
|
|
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
|
|
}
|