llvm-6502/test/Analysis/ScalarEvolution/2008-05-25-NegativeStepToZero.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

23 lines
613 B
LLVM

; RUN: opt < %s -analyze -scalar-evolution -disable-output \
; RUN: -scalar-evolution-max-iterations=0 | grep {backedge-taken count is 61}
; PR2364
define i32 @func_6() nounwind {
entry:
br label %bb5
bb: ; preds = %bb5
%tmp2 = add i32 %i.0, 1 ; <i32> [#uses=1]
%tmp4 = add i8 %x.0, -4 ; <i8> [#uses=1]
br label %bb5
bb5: ; preds = %bb, %entry
%x.0 = phi i8 [ 0, %entry ], [ %tmp4, %bb ] ; <i8> [#uses=2]
%i.0 = phi i32 [ 0, %entry ], [ %tmp2, %bb ] ; <i32> [#uses=2]
%tmp7 = icmp eq i8 %x.0, 12 ; <i1> [#uses=1]
br i1 %tmp7, label %return, label %bb
return: ; preds = %bb5
ret i32 %i.0
}