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; RUN: llvm-upgrade < %s | llvm-as | opt -simplifycfg | llvm-dis | \
; 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()
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
]
T:
switch uint %V, label %F [
uint 4, label %A
uint 17, label %B
uint 42, label %C
]
A:
call void %foo1()
ret void
B:
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
]
D:
call void %foo4()
ret void
}
|
