mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-01 16:33:37 +01:00
27 lines
525 B
LLVM
27 lines
525 B
LLVM
|
; RUN: opt < %s -loop-deletion -S | FileCheck %s
|
||
|
|
|
||
|
|
; Checks whether dead loops with multiple exits can be eliminated
|
||
|
|
|
||
|
|
; CHECK: entry:
|
||
|
|
; CHECK-NEXT: br label %return
|
||
|
|
|
||
|
|
; CHECK: return:
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
|
||
|
|
define void @foo(i64 %n, i64 %m) nounwind {
|
||
|
|
entry:
|
||
|
|
br label %bb
|
||
|
|
|
||
|
|
bb:
|
||
|
|
%x.0 = phi i64 [ 0, %entry ], [ %t0, %bb2 ]
|
||
|
|
%t0 = add i64 %x.0, 1
|
||
|
|
%t1 = icmp slt i64 %x.0, %n
|
||
|
|
br i1 %t1, label %bb2, label %return
|
||
|
|
bb2:
|
||
|
|
%t2 = icmp slt i64 %x.0, %m
|
||
|
|
br i1 %t1, label %bb, label %return
|
||
|
|
|
||
|
|
return:
|
||
|
|
ret void
|
||
|
|
}
|