forked from OSchip/llvm-project
54 lines
1.6 KiB
LLVM
54 lines
1.6 KiB
LLVM
; RUN: opt -latesimplifycfg -S < %s | FileCheck %s
|
|
|
|
define void @test1(i32 %n) #0 {
|
|
entry:
|
|
%n.addr = alloca i32, align 4
|
|
%count = alloca i32, align 4
|
|
store i32 %n, i32* %n.addr, align 4
|
|
%0 = bitcast i32* %count to i8*
|
|
store i32 0, i32* %count, align 4
|
|
br label %while.cond
|
|
|
|
while.cond: ; preds = %if.end, %entry
|
|
%1 = load i32, i32* %count, align 4
|
|
%2 = load i32, i32* %n.addr, align 4
|
|
%cmp = icmp ule i32 %1, %2
|
|
br i1 %cmp, label %while.body, label %while.end
|
|
|
|
while.body: ; preds = %while.cond
|
|
%3 = load i32, i32* %count, align 4
|
|
%rem = urem i32 %3, 2
|
|
%cmp1 = icmp eq i32 %rem, 0
|
|
br i1 %cmp1, label %if.then, label %if.else
|
|
|
|
if.then: ; preds = %while.body
|
|
%4 = load i32, i32* %count, align 4
|
|
%add = add i32 %4, 1
|
|
store i32 %add, i32* %count, align 4
|
|
br label %if.end
|
|
|
|
; CHECK: if.then:
|
|
; CHECK: br label %while.cond, !llvm.loop !0
|
|
|
|
if.else: ; preds = %while.body
|
|
%5 = load i32, i32* %count, align 4
|
|
%add2 = add i32 %5, 2
|
|
store i32 %add2, i32* %count, align 4
|
|
br label %if.end
|
|
|
|
; CHECK: if.else:
|
|
; CHECK: br label %while.cond, !llvm.loop !0
|
|
|
|
if.end: ; preds = %if.else, %if.then
|
|
br label %while.cond, !llvm.loop !0
|
|
|
|
while.end: ; preds = %while.cond
|
|
%6 = bitcast i32* %count to i8*
|
|
ret void
|
|
}
|
|
|
|
!0 = distinct !{!0, !1}
|
|
!1 = !{!"llvm.loop.distribute.enable", i1 true}
|
|
; CHECK: !0 = distinct !{!0, !1}
|
|
; CHECK: !1 = !{!"llvm.loop.distribute.enable", i1 true}
|