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; RUN: opt < %s -simplifycfg -S | FileCheck %s
define void @test1(i1 %C, i1* %BP) {
; CHECK-LABEL: @test1(
; CHECK: entry:
; CHECK-NEXT: ret void
entry:
br i1 %C, label %T, label %F
T:
store i1 %C, i1* %BP
unreachable
F:
ret void
}
define void @test2() {
; CHECK-LABEL: @test2(
; CHECK: entry:
; CHECK-NEXT: call void @test2()
; CHECK-NEXT: ret void
entry:
invoke void @test2( )
to label %N unwind label %U
U:
unreachable
N:
ret void
}
define i32 @test3(i32 %v) {
; CHECK-LABEL: @test3(
; CHECK: entry:
; CHECK-NEXT: [[CMP:%[A-Za-z0-9]+]] = icmp eq i32 %v, 2
; CHECK-NEXT: select i1 [[CMP]], i32 2, i32 1
; CHECK-NEXT: ret
entry:
switch i32 %v, label %default [
i32 1, label %U
i32 2, label %T
]
default:
ret i32 1
U:
unreachable
T:
ret i32 2
}
; PR9450
define i32 @test4(i32 %v) {
; CHECK: entry:
; CHECK-NEXT: switch i32 %v, label %T [
; CHECK-NEXT: i32 3, label %V
; CHECK-NEXT: i32 2, label %U
; CHECK-NEXT: ]
entry:
br label %SWITCH
V:
ret i32 7
SWITCH:
switch i32 %v, label %default [
i32 1, label %T
i32 2, label %U
i32 3, label %V
]
default:
unreachable
U:
ret i32 1
T:
ret i32 2
}
|
