llvm-6502/test/Analysis/ScalarEvolution/2007-07-15-NegativeStride.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

22 lines
678 B
LLVM

; RUN: opt < %s -analyze -scalar-evolution -disable-output \
; RUN: -scalar-evolution-max-iterations=0 | grep {Loop bb: backedge-taken count is 100}
; PR1533
@array = weak global [101 x i32] zeroinitializer, align 32 ; <[100 x i32]*> [#uses=1]
define void @loop(i32 %x) {
entry:
br label %bb
bb: ; preds = %bb, %entry
%i.01.0 = phi i32 [ 100, %entry ], [ %tmp4, %bb ] ; <i32> [#uses=2]
%tmp1 = getelementptr [101 x i32]* @array, i32 0, i32 %i.01.0 ; <i32*> [#uses=1]
store i32 %x, i32* %tmp1
%tmp4 = add i32 %i.01.0, -1 ; <i32> [#uses=2]
%tmp7 = icmp sgt i32 %tmp4, -1 ; <i1> [#uses=1]
br i1 %tmp7, label %bb, label %return
return: ; preds = %bb
ret void
}