2014-06-10-SwitchContiguousOpt.ll
461 Bytes
; RUN: opt < %s -lowerswitch -S | FileCheck %s
; CHECK-NOT: icmp eq i32 %0, 1
define i32 @foo(i32 %a) #0 {
entry:
%retval = alloca i32, align 4
%a.addr = alloca i32, align 4
store i32 %a, i32* %a.addr, align 4
%0 = load i32, i32* %a.addr, align 4
switch i32 %0, label %sw.default [
i32 0, label %sw.bb
i32 1, label %sw.bb1
i32 2, label %sw.bb2
]
sw.bb:
ret i32 12
sw.bb1:
ret i32 4
sw.bb2:
ret i32 2
sw.default:
ret i32 9
}