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- ; RUN: opt < %s -analyze -scalar-evolution > %t
- ; RUN: grep "sext i57 {0,+,199}<%bb> to i64" %t | count 1
- ; RUN: grep "sext i59 {0,+,199}<%bb> to i64" %t | count 1
- target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
- target triple = "i386-apple-darwin9.6"
- define i64 @foo(i64* nocapture %x, i64 %n) nounwind {
- entry:
- %t0 = icmp sgt i64 %n, 0 ; <i1> [#uses=1]
- br i1 %t0, label %bb, label %return
- bb: ; preds = %bb, %entry
- %i.01 = phi i64 [ 0, %entry ], [ %indvar.next, %bb ] ; <i32> [#uses=2]
- %t1 = shl i64 %i.01, 7 ; <i32> [#uses=1]
- %t2 = ashr i64 %t1, 7 ; <i32> [#uses=1]
- %s1 = shl i64 %i.01, 5 ; <i32> [#uses=1]
- %s2 = ashr i64 %s1, 5 ; <i32> [#uses=1]
- %t3 = getelementptr i64, i64* %x, i64 %i.01 ; <i64*> [#uses=1]
- store i64 0, i64* %t3, align 1
- %indvar.next = add i64 %i.01, 199 ; <i32> [#uses=2]
- %exitcond = icmp eq i64 %indvar.next, %n ; <i1> [#uses=1]
- br i1 %exitcond, label %return, label %bb
- return: ; preds = %bb, %entry
- %p = phi i64 [ 0, %entry ], [ %t2, %bb ]
- %q = phi i64 [ 0, %entry ], [ %s2, %bb ]
- %v = xor i64 %p, %q
- ret i64 %v
- }
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