| Ulrich Weigand | ce4c109 | 2015-05-05 19:25:42 +0000 | [diff] [blame^] | 1 | ; Test vector byte masks, v16i8 version. |
| 2 | ; |
| 3 | ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s |
| 4 | |
| 5 | ; Test an all-zeros vector. |
| 6 | define <16 x i8> @f1() { |
| 7 | ; CHECK-LABEL: f1: |
| 8 | ; CHECK: vgbm %v24, 0 |
| 9 | ; CHECK: br %r14 |
| 10 | ret <16 x i8> zeroinitializer |
| 11 | } |
| 12 | |
| 13 | ; Test an all-ones vector. |
| 14 | define <16 x i8> @f2() { |
| 15 | ; CHECK-LABEL: f2: |
| 16 | ; CHECK: vgbm %v24, 65535 |
| 17 | ; CHECK: br %r14 |
| 18 | ret <16 x i8> <i8 -1, i8 -1, i8 -1, i8 -1, |
| 19 | i8 -1, i8 -1, i8 -1, i8 -1, |
| 20 | i8 -1, i8 -1, i8 -1, i8 -1, |
| 21 | i8 -1, i8 -1, i8 -1, i8 -1> |
| 22 | } |
| 23 | |
| 24 | ; Test a mixed vector (mask 0x8c75). |
| 25 | define <16 x i8> @f3() { |
| 26 | ; CHECK-LABEL: f3: |
| 27 | ; CHECK: vgbm %v24, 35957 |
| 28 | ; CHECK: br %r14 |
| 29 | ret <16 x i8> <i8 -1, i8 0, i8 0, i8 0, |
| 30 | i8 -1, i8 -1, i8 0, i8 0, |
| 31 | i8 0, i8 -1, i8 -1, i8 -1, |
| 32 | i8 0, i8 -1, i8 0, i8 -1> |
| 33 | } |
| 34 | |
| 35 | ; Test that undefs are treated as zero. |
| 36 | define <16 x i8> @f4() { |
| 37 | ; CHECK-LABEL: f4: |
| 38 | ; CHECK: vgbm %v24, 35957 |
| 39 | ; CHECK: br %r14 |
| 40 | ret <16 x i8> <i8 -1, i8 undef, i8 undef, i8 undef, |
| 41 | i8 -1, i8 -1, i8 undef, i8 undef, |
| 42 | i8 undef, i8 -1, i8 -1, i8 -1, |
| 43 | i8 undef, i8 -1, i8 undef, i8 -1> |
| 44 | } |
| 45 | |
| 46 | ; Test that we don't use VGBM if one of the bytes is not 0 or 0xff. |
| 47 | define <16 x i8> @f5() { |
| 48 | ; CHECK-LABEL: f5: |
| 49 | ; CHECK-NOT: vgbm |
| 50 | ; CHECK: br %r14 |
| 51 | ret <16 x i8> <i8 -1, i8 0, i8 0, i8 0, |
| 52 | i8 -1, i8 -1, i8 0, i8 1, |
| 53 | i8 0, i8 -1, i8 -1, i8 -1, |
| 54 | i8 0, i8 -1, i8 0, i8 -1> |
| 55 | } |