-; Test CFG simplify removal of branch instructions...
+; Test CFG simplify removal of branch instructions.
;
-; RUN: opt < %s -simplifycfg -S | not grep br
+; RUN: opt < %s -simplifycfg -S | FileCheck %s
define void @test1() {
br label %BB1
BB1: ; preds = %0
ret void
+; CHECK: @test1
+; CHECK-NEXT: ret void
}
define void @test2() {
ret void
BB1: ; No predecessors!
ret void
+; CHECK: @test2
+; CHECK-NEXT: ret void
+; CHECK-NEXT: }
}
define void @test3(i1 %T) {
br i1 %T, label %BB1, label %BB1
BB1: ; preds = %0, %0
ret void
+; CHECK: @test3
+; CHECK-NEXT: ret void
}
+define void @test4() {
+ br label %return
+return:
+ ret void
+; CHECK: @test4
+; CHECK-NEXT: ret void
+}
+@test4g = global i8* blockaddress(@test4, %return)
+
+
+; PR5795
+define void @test5(i32 %A) {
+ switch i32 %A, label %return [
+ i32 2, label %bb
+ i32 10, label %bb1
+ ]
+bb: ; preds = %entry
+ ret void
+bb1: ; preds = %entry
+ ret void
+
+return: ; preds = %entry
+ ret void
+; CHECK: @test5
+; CHECK-NEXT: bb:
+; CHECK-NEXT: ret void
+}