llvm-6502/test/Transforms/SimplifyCFG/switch-masked-bits.ll
2011-05-14 15:57:25 +00:00

39 lines
569 B
LLVM

; RUN: opt -S -simplifycfg < %s | FileCheck %s
define i32 @test1(i32 %x) nounwind {
%i = shl i32 %x, 1
switch i32 %i, label %a [
i32 21, label %b
i32 24, label %c
]
a:
ret i32 0
b:
ret i32 3
c:
ret i32 5
; CHECK: @test1
; CHECK: %cond = icmp eq i32 %i, 24
; CHECK: %merge = select i1 %cond, i32 5, i32 0
; CHECK: ret i32 %merge
}
define i32 @test2(i32 %x) nounwind {
%i = shl i32 %x, 1
switch i32 %i, label %a [
i32 21, label %b
i32 23, label %c
]
a:
ret i32 0
b:
ret i32 3
c:
ret i32 5
; CHECK: @test2
; CHECK: ret i32 0
}