1 ; RUN: opt < %s -passes=indvars -S | FileCheck %s
3 ; Indvars should do the IV arithmetic in the canonical IV type (i64),
4 ; and only use one truncation.
6 define void @foo(ptr %A, ptr %B, i64 %n, i64 %a, i64 %s) nounwind {
12 %t0 = icmp sgt i64 %n, 0 ; <i1> [#uses=1]
13 br i1 %t0, label %bb.preheader, label %return
15 bb.preheader: ; preds = %entry
18 bb: ; 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, ptr %A, i64 %t1 ; <ptr> [#uses=1]
22 store i64 %i.01, ptr %t2, align 8
23 %t6 = add i64 %i.01, %s ; <i64> [#uses=1]
26 return: ; preds = %entry