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1; RUN: opt < %s -indvars -S | FileCheck %s
2
3; Indvars should do the IV arithmetic in the canonical IV type (i64),
4; and only use one truncation.
5
6define void @foo(i64* %A, i64* %B, i64 %n, i64 %a, i64 %s) nounwind {
7; CHECK-LABEL: @foo(
8; CHECK-NOT: trunc
9; CHECK: and
10; CHECK-NOT: and
11entry:
12	%t0 = icmp sgt i64 %n, 0		; <i1> [#uses=1]
13	br i1 %t0, label %bb.preheader, label %return
14
15bb.preheader:		; preds = %entry
16	br label %bb
17
18bb:		; preds = %bb, %bb.preheader
19	%i.01 = phi i64 [ %t6, %bb ], [ %a, %bb.preheader ]		; <i64> [#uses=3]
20	%t1 = and i64 %i.01, 255		; <i64> [#uses=1]
21	%t2 = getelementptr i64, i64* %A, i64 %t1		; <i64*> [#uses=1]
22	store i64 %i.01, i64* %t2, align 8
23	%t6 = add i64 %i.01, %s		; <i64> [#uses=1]
24	br label %bb
25
26return:		; preds = %entry
27	ret void
28}
29