-; RUN: llvm-upgrade < %s | llvm-as | opt -simplifycfg | llvm-dis | \
-; RUN: grep switch | wc -l | grep 1
+; RUN: opt < %s -simplifycfg -S | \
+; RUN: grep switch | count 1
; Test that a switch going to a switch on the same value can be merged. All
; three switches in this example can be merged into one big one.
-declare void %foo1()
-declare void %foo2()
-declare void %foo3()
-declare void %foo4()
+declare void @foo1()
-void %test1(uint %V) {
- switch uint %V, label %F [
- uint 4, label %T
- uint 17, label %T
- uint 5, label %T
- uint 1234, label %F
- ]
+declare void @foo2()
+
+declare void @foo3()
-T:
- switch uint %V, label %F [
- uint 4, label %A
- uint 17, label %B
- uint 42, label %C
+declare void @foo4()
+
+define void @test1(i32 %V) {
+ switch i32 %V, label %F [
+ i32 4, label %T
+ i32 17, label %T
+ i32 5, label %T
+ i32 1234, label %F
+ ]
+T: ; preds = %0, %0, %0
+ switch i32 %V, label %F [
+ i32 4, label %A
+ i32 17, label %B
+ i32 42, label %C
]
-A:
- call void %foo1()
+A: ; preds = %T
+ call void @foo1( )
ret void
-
-B:
- call void %foo2()
+B: ; preds = %F, %F, %T
+ call void @foo2( )
ret void
-C:
- call void %foo3()
- ret void
-
-F:
- switch uint %V, label %F [
- uint 4, label %B
- uint 18, label %B
- uint 42, label %D
+C: ; preds = %T
+ call void @foo3( )
+ ret void
+F: ; preds = %F, %T, %0, %0
+ switch i32 %V, label %F [
+ i32 4, label %B
+ i32 18, label %B
+ i32 42, label %D
]
-D:
- call void %foo4()
+D: ; preds = %F
+ call void @foo4( )
ret void
}