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; RUN: opt < %s -simplifycfg -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
declare i32 @__gxx_personality_v0(...)
declare void @fn()
; CHECK-LABEL: @test1
define void @test1() {
entry:
; CHECK-LABEL: entry:
; CHECK: to label %invoke2 unwind label %lpad2
invoke void @fn()
to label %invoke2 unwind label %lpad1
invoke2:
; CHECK-LABEL: invoke2:
; CHECK: to label %invoke.cont unwind label %lpad2
invoke void @fn()
to label %invoke.cont unwind label %lpad2
invoke.cont:
ret void
lpad1:
%exn = landingpad {i8*, i32} personality i32 (...)* @__gxx_personality_v0
cleanup
br label %shared_resume
lpad2:
; CHECK-LABEL: lpad2:
; CHECK: landingpad { i8*, i32 } personality i32 (...)* @__gxx_personality_v0
; CHECK-NEXT: cleanup
; CHECK-NEXT: call void @fn()
; CHECK-NEXT: ret void
%exn2 = landingpad {i8*, i32} personality i32 (...)* @__gxx_personality_v0
cleanup
br label %shared_resume
shared_resume:
call void @fn()
ret void
}
; Don't trigger if blocks aren't the same/empty
define void @neg1() {
; CHECK-LABEL: @neg1
entry:
; CHECK-LABEL: entry:
; CHECK: to label %invoke2 unwind label %lpad1
invoke void @fn()
to label %invoke2 unwind label %lpad1
invoke2:
; CHECK-LABEL: invoke2:
; CHECK: to label %invoke.cont unwind label %lpad2
invoke void @fn()
to label %invoke.cont unwind label %lpad2
invoke.cont:
ret void
lpad1:
%exn = landingpad {i8*, i32} personality i32 (...)* @__gxx_personality_v0
filter [0 x i8*] zeroinitializer
call void @fn()
br label %shared_resume
lpad2:
%exn2 = landingpad {i8*, i32} personality i32 (...)* @__gxx_personality_v0
cleanup
br label %shared_resume
shared_resume:
call void @fn()
ret void
}
; Should not trigger when the landing pads are not the exact same
define void @neg2() {
; CHECK-LABEL: @neg2
entry:
; CHECK-LABEL: entry:
; CHECK: to label %invoke2 unwind label %lpad1
invoke void @fn()
to label %invoke2 unwind label %lpad1
invoke2:
; CHECK-LABEL: invoke2:
; CHECK: to label %invoke.cont unwind label %lpad2
invoke void @fn()
to label %invoke.cont unwind label %lpad2
invoke.cont:
ret void
lpad1:
%exn = landingpad {i8*, i32} personality i32 (...)* @__gxx_personality_v0
filter [0 x i8*] zeroinitializer
br label %shared_resume
lpad2:
%exn2 = landingpad {i8*, i32} personality i32 (...)* @__gxx_personality_v0
cleanup
br label %shared_resume
shared_resume:
call void @fn()
ret void
}
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