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llvm-mirror/test/Analysis/ScalarEvolution/2008-11-18-LessThanOrEqual.ll
Dan Gohman 205b641954 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.

llvm-svn: 81537
2009-09-11 18:01:28 +00:00

33 lines
905 B
LLVM

; RUN: opt < %s -analyze -scalar-evolution -disable-output |& \
; RUN: grep {Loop bb: backedge-taken count is (7 + (-1 \\* %argc))}
; XFAIL: *
define i32 @main(i32 %argc, i8** %argv) nounwind {
entry:
%0 = icmp ugt i32 %argc, 7 ; <i1> [#uses=1]
br i1 %0, label %bb2, label %bb.nph
bb.nph: ; preds = %entry
br label %bb
bb: ; preds = %bb.nph, %bb1
%indvar = phi i32 [ 0, %bb.nph ], [ %indvar.next, %bb1 ] ; <i32> [#uses=2]
%argc_addr.04 = add i32 %indvar, %argc ; <i32> [#uses=1]
tail call void (...)* @Test() nounwind
%1 = add i32 %argc_addr.04, 1 ; <i32> [#uses=1]
br label %bb1
bb1: ; preds = %bb
%phitmp = icmp ugt i32 %1, 7 ; <i1> [#uses=1]
%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1]
br i1 %phitmp, label %bb1.bb2_crit_edge, label %bb
bb1.bb2_crit_edge: ; preds = %bb1
br label %bb2
bb2: ; preds = %bb1.bb2_crit_edge, %entry
ret i32 0
}
declare void @Test(...)