| Sanjoy Das | 1459883 | 2015-03-26 17:28:26 +0000 | [diff] [blame] | 1 | ; RUN: opt -S -indvars < %s | FileCheck %s |
| 2 | |
| 3 | declare void @use(i1) |
| 4 | |
| 5 | define void @sext_condition(i8 %t) { |
| 6 | ; CHECK-LABEL: sext_condition |
| 7 | entry: |
| 8 | %st = sext i8 %t to i16 |
| 9 | %ecmp = icmp slt i16 %st, 42 |
| 10 | br i1 %ecmp, label %loop, label %exit |
| 11 | |
| 12 | loop: |
| 13 | ; CHECK-LABEL: loop |
| 14 | %idx = phi i8 [ %t, %entry ], [ %idx.inc, %loop ] |
| 15 | %idx.inc = add i8 %idx, 1 |
| 16 | %c = icmp slt i8 %idx, 42 |
| 17 | ; CHECK: call void @use(i1 true) |
| 18 | call void @use(i1 %c) |
| 19 | %be = icmp slt i8 %idx.inc, 42 |
| 20 | br i1 %be, label %loop, label %exit |
| 21 | |
| 22 | exit: |
| 23 | ret void |
| 24 | } |
| 25 | |
| 26 | define void @zext_condition(i8 %t) { |
| 27 | ; CHECK-LABEL: zext_condition |
| 28 | entry: |
| 29 | %st = zext i8 %t to i16 |
| 30 | %ecmp = icmp ult i16 %st, 42 |
| 31 | br i1 %ecmp, label %loop, label %exit |
| 32 | |
| 33 | loop: |
| 34 | ; CHECK-LABEL: loop |
| 35 | %idx = phi i8 [ %t, %entry ], [ %idx.inc, %loop ] |
| 36 | %idx.inc = add i8 %idx, 1 |
| 37 | %c = icmp ult i8 %idx, 42 |
| 38 | ; CHECK: call void @use(i1 true) |
| 39 | call void @use(i1 %c) |
| 40 | %be = icmp ult i8 %idx.inc, 42 |
| 41 | br i1 %be, label %loop, label %exit |
| 42 | |
| 43 | exit: |
| 44 | ret void |
| 45 | } |