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llvm-mirror/test/Analysis/ScalarEvolution/trip-count2.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
1.1 KiB
LLVM

; RUN: opt < %s -analyze -scalar-evolution -disable-output | \
; RUN: grep {backedge-taken count is 4}
; PR1101
@A = weak global [1000 x i32] zeroinitializer, align 32
define void @test(i32 %N) {
entry:
"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
br label %bb3
bb: ; preds = %bb3
%tmp = getelementptr [1000 x i32]* @A, i32 0, i32 %i.0 ; <i32*> [#uses=1]
store i32 123, i32* %tmp
%tmp4 = mul i32 %i.0, 4 ; <i32> [#uses=1]
%tmp5 = or i32 %tmp4, 1
%tmp61 = xor i32 %tmp5, -2147483648
%tmp6 = trunc i32 %tmp61 to i16
%tmp71 = shl i16 %tmp6, 2
%tmp7 = zext i16 %tmp71 to i32
%tmp2 = add i32 %tmp7, %i.0
br label %bb3
bb3: ; preds = %bb, %entry
%i.0 = phi i32 [ 0, %entry ], [ %tmp2, %bb ] ; <i32> [#uses=3]
%tmp3 = icmp sle i32 %i.0, 9999 ; <i1> [#uses=1]
br i1 %tmp3, label %bb, label %bb5
bb5: ; preds = %bb3
br label %return
return: ; preds = %bb5
ret void
}