forked from OSchip/llvm-project
39 lines
561 B
LLVM
39 lines
561 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: %. = select i1 %cond, i32 5, i32 0
|
|
; CHECK: ret i32 %.
|
|
}
|
|
|
|
|
|
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
|
|
}
|