llvm-6502/test/Analysis/ScalarEvolution/2008-07-29-SGTTripCount.ll
Dan Gohman f2f6ce65b7 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 18:01:28 +00:00

28 lines
786 B
LLVM

; RUN: opt < %s -analyze -scalar-evolution -disable-output \
; RUN: -scalar-evolution-max-iterations=0 | \
; RUN: grep -F "backedge-taken count is (-1 + (-1 * %j))"
; 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
}