| ; RUN: opt < %s -indvars -S > %t |
| ; RUN: not grep trunc %t |
| ; RUN: grep and %t | count 1 |
| |
| ; Indvars should do the IV arithmetic in the canonical IV type (i64), |
| ; and only use one truncation. |
| |
| define void @foo(i64* %A, i64* %B, i64 %n, i64 %a, i64 %s) nounwind { |
| entry: |
| %t0 = icmp sgt i64 %n, 0 ; <i1> [#uses=1] |
| br i1 %t0, label %bb.preheader, label %return |
| |
| bb.preheader: ; preds = %entry |
| br label %bb |
| |
| bb: ; preds = %bb, %bb.preheader |
| %i.01 = phi i64 [ %t6, %bb ], [ %a, %bb.preheader ] ; <i64> [#uses=3] |
| %t1 = and i64 %i.01, 255 ; <i64> [#uses=1] |
| %t2 = getelementptr i64* %A, i64 %t1 ; <i64*> [#uses=1] |
| store i64 %i.01, i64* %t2, align 8 |
| %t6 = add i64 %i.01, %s ; <i64> [#uses=1] |
| br label %bb |
| |
| return: ; preds = %entry |
| ret void |
| } |
