25 lines
756 B
LLVM
25 lines
756 B
LLVM
|
; RUN: opt < %s -analyze -enable-new-pm=0 -scalar-evolution -scalar-evolution-max-iterations=0 | FileCheck %s
|
||
|
|
; RUN: opt < %s -disable-output "-passes=print<scalar-evolution>" -scalar-evolution-max-iterations=0 2>&1 | FileCheck %s
|
||
|
|
; PR1706
|
||
|
|
|
||
|
|
; CHECK: backedge-taken count is 13
|
||
|
|
|
||
|
|
define i32 @f() {
|
||
|
|
entry:
|
||
|
|
br label %bb5
|
||
|
|
|
||
|
|
bb: ; preds = %bb5
|
||
|
|
%tmp2 = shl i32 %j.0, 1 ; <i32> [#uses=1]
|
||
|
|
%tmp4 = add i32 %i.0, 268435456 ; <i32> [#uses=1]
|
||
|
|
br label %bb5
|
||
|
|
|
||
|
|
bb5: ; preds = %bb, %entry
|
||
|
|
%j.0 = phi i32 [ 1, %entry ], [ %tmp2, %bb ] ; <i32> [#uses=2]
|
||
|
|
%i.0 = phi i32 [ -1879048192, %entry ], [ %tmp4, %bb ] ; <i32> [#uses=2]
|
||
|
|
%tmp7 = icmp slt i32 %i.0, 1610612736 ; <i1> [#uses=1]
|
||
|
|
br i1 %tmp7, label %bb, label %return
|
||
|
|
|
||
|
|
return: ; preds = %bb5
|
||
|
|
ret i32 %j.0
|
||
|
|
}
|