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llvm-mirror/test/Analysis/ScalarEvolution/avoid-smax-0.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

36 lines
769 B
LLVM

; RUN: opt < %s -scalar-evolution -analyze -disable-output | grep {Loop bb3: backedge-taken count is (-1 + %n)}
; We don't want to use a max in the trip count expression in
; this testcase.
define void @foo(i32 %n, i32* %p, i32* %q) nounwind {
entry:
icmp sgt i32 %n, 0
br i1 %0, label %bb, label %return
bb:
load i32* %q, align 4
icmp eq i32 %1, 0
br i1 %2, label %return, label %bb3.preheader
bb3.preheader:
br label %bb3
bb3:
%i.0 = phi i32 [ %7, %bb3 ], [ 0, %bb3.preheader ]
getelementptr i32* %p, i32 %i.0
load i32* %3, align 4
add i32 %4, 1
getelementptr i32* %p, i32 %i.0
store i32 %5, i32* %6, align 4
add i32 %i.0, 1
icmp slt i32 %7, %n
br i1 %8, label %bb3, label %return.loopexit
return.loopexit:
br label %return
return:
ret void
}