llvm/test/Analysis/ScalarEvolution/2008-12-11-SMaxOverflow.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

29 lines
688 B
LLVM

; RUN: opt < %s -analyze -scalar-evolution -disable-output | grep {0 smax}
; XFAIL: *
define i32 @f(i32 %c.idx.val) {
bb2:
%k.018 = add i32 %c.idx.val, -1 ; <i32> [#uses=2]
%a14 = icmp slt i32 %k.018, 0 ; <i1> [#uses=1]
br i1 %a14, label %bb19, label %bb16.preheader
bb16.preheader:
%k.019 = phi i32 [ %k.0, %bb18 ], [ %k.018, %bb2 ] ; <i32> [#uses=5]
%x = phi i32 [ 0, %bb2 ], [ %x.1, %bb18]
br label %bb18
bb18: ; preds = %bb18.loopexit
%x.1 = add i32 %x, 1
%k.0 = add i32 %k.019, -1 ; <i32> [#uses=2]
%a107 = icmp slt i32 %k.0, 0 ; <i1> [#uses=1]
br i1 %a107, label %bb18.bb19_crit_edge, label %bb16.preheader
bb18.bb19_crit_edge:
ret i32 %x
bb19:
ret i32 0
}