| Kit Barton | 4f79f96 | 2015-06-16 16:01:15 +0000 | [diff] [blame] | 1 | ; Check handling of the mftb instruction. |
| 2 | ; For CPUs 601 and pwr3, the mftb instruction should be emitted. |
| 3 | ; On all other CPUs (including generic, ppc, ppc64), the mfspr instruction |
| 4 | ; should be used instead. There should no longer be a deprecated warning |
| 5 | ; message emittedfor this instruction for any CPU. |
| 6 | |
| 7 | ; RUN: llc -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 < %s 2>&1 \ |
| 8 | ; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR |
| 9 | ; RUN: llc -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr8 < %s 2>&1 \ |
| 10 | ; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR |
| 11 | ; RUN: llc -mtriple=powerpc64le-unknown-linux-gnu < %s 2>&1 \ |
| 12 | ; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR |
| 13 | ; RUN: llc -mtriple=powerpc-unknown-linux-gnu < %s 2>&1 \ |
| 14 | ; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR |
| 15 | ; RUN: llc -mtriple=powerpc-unknown-linux-gnu -mcpu=ppc < %s 2>&1 \ |
| 16 | ; RUN: | FileCheck %s --check-prefix=CHECK-MFSPR |
| 17 | ; RUN: llc -mtriple=powerpc-unknown-linux-gnu -mcpu=601 < %s 2>&1 \ |
| 18 | ; RUN: | FileCheck %s --check-prefix=CHECK-MFTB |
| 19 | ; RUN: llc -mtriple=powerpc-unknown-linux-gnu -mcpu=pwr3 < %s 2>&1 \ |
| 20 | ; RUN: | FileCheck %s --check-prefix=CHECK-MFTB |
| 21 | |
| 22 | ; CHECK-MFSPR-NOT: warning: deprecated |
| 23 | ; CHECK-MFTB-NOT: warning: deprecated |
| 24 | |
| 25 | define i32 @get_time() { |
| 26 | %time = call i32 asm "mftb $0, 268", "=r"() |
| 27 | ret i32 %time |
| 28 | ; CHECK-MFSPR-LABEL: @get_time |
| 29 | ; CHECK-MFSPR: mfspr 3, 268 |
| 30 | ; CHECK-MFSPR: blr |
| 31 | |
| 32 | ; CHECK-MFTB-LABEL: @get_time |
| 33 | ; CHECK-MFTB: mftb 3, 268 |
| 34 | ; CHECK-MFTB: blr |
| 35 | } |
| 36 | |
| 37 | define i32 @get_timeu() { |
| 38 | %time = call i32 asm "mftb $0, 269", "=r"() |
| 39 | ret i32 %time |
| 40 | ; CHECK-MFSPR-LABEL: @get_timeu |
| 41 | ; CHECK-MFSPR: mfspr 3, 269 |
| 42 | ; CHECK-MFSPR: blr |
| 43 | |
| 44 | ; CHECK-MFTB-LABEL: @get_timeu |
| 45 | ; CHECK-MFTB: mftbu 3 |
| 46 | ; CHECK-MFTB: blr |
| 47 | } |
| 48 | |
| 49 | define i32 @get_time_e() { |
| 50 | %time = call i32 asm "mftb $0", "=r"() |
| 51 | ret i32 %time |
| 52 | ; CHECK-MFSPR-LABEL: @get_time_e |
| 53 | ; CHECK-MFSPR: mfspr 3, 268 |
| 54 | ; CHECK-MFSPR: blr |
| 55 | |
| 56 | ; CHECK-MFTB-LABEL: @get_time_e |
| 57 | ; CHECK-MFTB: mftb 3, 268 |
| 58 | ; CHECK-MFTB: blr |
| 59 | } |
| 60 | |
| 61 | define i32 @get_timeu_e() { |
| 62 | %time = call i32 asm "mftbu $0", "=r"() |
| 63 | ret i32 %time |
| 64 | ; CHECK-MFSPR-LABEL: @get_timeu_e |
| 65 | ; CHECK-MFSPR: mfspr 3, 269 |
| 66 | ; CHECK-MFSPR: blr |
| 67 | |
| 68 | ; CHECK-MFTB-LABEL: @get_timeu_e |
| 69 | ; CHECK-MFTB: mftbu 3 |
| 70 | ; CHECK-MFTB: blr |
| 71 | } |
| 72 | |