| Richard Sandiford | f03789c | 2013-11-22 17:28:28 +0000 | [diff] [blame] | 1 | ; That that we don't try to use z196 instructions on z10 for TMHH and TMHL. |
| 2 | ; |
| 3 | ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 -O0 | FileCheck %s |
| 4 | |
| 5 | @g = global i32 0 |
| 6 | |
| 7 | ; Check the lowest useful TMHL value. |
| 8 | define void @f1(i64 %a) { |
| 9 | ; CHECK-LABEL: f1: |
| 10 | ; CHECK-NOT: risblg |
| 11 | ; CHECK-NOT: risbhg |
| 12 | ; CHECK: tmhl {{%r[0-5]}}, 1 |
| 13 | ; CHECK-NOT: risblg |
| 14 | ; CHECK-NOT: risbhg |
| 15 | ; CHECK: br %r14 |
| 16 | entry: |
| 17 | %and = and i64 %a, 4294967296 |
| 18 | %cmp = icmp eq i64 %and, 0 |
| 19 | br i1 %cmp, label %exit, label %store |
| 20 | |
| 21 | store: |
| 22 | store i32 1, i32 *@g |
| 23 | br label %exit |
| 24 | |
| 25 | exit: |
| 26 | ret void |
| 27 | } |
| 28 | |
| 29 | ; Check the lowest useful TMHH value. |
| 30 | define void @f2(i64 %a) { |
| 31 | ; CHECK-LABEL: f2: |
| 32 | ; CHECK-NOT: risblg |
| 33 | ; CHECK-NOT: risbhg |
| 34 | ; CHECK: tmhh {{%r[0-5]}}, 1 |
| 35 | ; CHECK-NOT: risblg |
| 36 | ; CHECK-NOT: risbhg |
| 37 | ; CHECK: br %r14 |
| 38 | entry: |
| 39 | %and = and i64 %a, 281474976710656 |
| 40 | %cmp = icmp ne i64 %and, 0 |
| 41 | br i1 %cmp, label %exit, label %store |
| 42 | |
| 43 | store: |
| 44 | store i32 1, i32 *@g |
| 45 | br label %exit |
| 46 | |
| 47 | exit: |
| 48 | ret void |
| 49 | } |