blob: d7c7e4ef12d7d10aca7398436f607145ea5a383d [file] [log] [blame]
; 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
; PR2607
define i32 @_Z1aj(i32 %j) nounwind {
entry:
icmp sgt i32 0, %j ; <i1>:0 [#uses=1]
br i1 %0, label %bb.preheader, label %return
bb.preheader: ; preds = %entry
br label %bb
bb: ; preds = %bb, %bb.preheader
%i.01 = phi i32 [ %1, %bb ], [ 0, %bb.preheader ] ; <i32> [#uses=1]
add i32 %i.01, -1 ; <i32>:1 [#uses=3]
icmp sgt i32 %1, %j ; <i1>:2 [#uses=1]
br i1 %2, label %bb, label %return.loopexit
return.loopexit: ; preds = %bb
br label %return
return: ; preds = %return.loopexit, %entry
%i.0.lcssa = phi i32 [ 0, %entry ], [ %1, %return.loopexit ] ; <i32> [#uses=1]
ret i32 %i.0.lcssa
}
; CHECK: backedge-taken count is (-1 + (-1 * %j))