| Will Dietz | 5cb7f4e | 2013-10-14 16:57:17 +0000 | [diff] [blame] | 1 | ; REQUIRES: asserts |
| Cong Hou | f9f9ffb | 2015-09-18 18:19:40 +0000 | [diff] [blame] | 2 | ; RUN: llc < %s -mtriple=thumbv7-apple-ios -disable-ifcvt-diamond -stats 2>&1 | FileCheck %s |
| Will Dietz | 5cb7f4e | 2013-10-14 16:57:17 +0000 | [diff] [blame] | 3 | ; Evaluate the two vld1.8 instructions in separate MBB's, |
| 4 | ; instead of stalling on one and conditionally overwriting its result. |
| Cong Hou | f9f9ffb | 2015-09-18 18:19:40 +0000 | [diff] [blame] | 5 | ; |
| 6 | ; Update: After if-conversion the two vld1.8 instructions are in the same MBB |
| 7 | ; again. So we disable this if-conversion to eliminate its influence to this |
| 8 | ; test. |
| Will Dietz | 5cb7f4e | 2013-10-14 16:57:17 +0000 | [diff] [blame] | 9 | |
| Cong Hou | f9f9ffb | 2015-09-18 18:19:40 +0000 | [diff] [blame] | 10 | ; CHECK-NOT: Number of pipeline stalls |
| Will Dietz | 5cb7f4e | 2013-10-14 16:57:17 +0000 | [diff] [blame] | 11 | define <16 x i8> @multiselect(i32 %avail, i8* %foo, i8* %bar) { |
| 12 | entry: |
| Jeroen Ketema | ab99b59 | 2015-09-30 10:56:37 +0000 | [diff] [blame] | 13 | %vld1 = call <16 x i8> @llvm.arm.neon.vld1.v16i8.p0i8(i8* %foo, i32 1) |
| 14 | %vld2 = call <16 x i8> @llvm.arm.neon.vld1.v16i8.p0i8(i8* %bar, i32 1) |
| Daniel Jasper | a73f3d5 | 2015-04-15 06:24:07 +0000 | [diff] [blame] | 15 | %and = and i32 %avail, 3 |
| Will Dietz | 5cb7f4e | 2013-10-14 16:57:17 +0000 | [diff] [blame] | 16 | %tobool = icmp eq i32 %and, 0 |
| 17 | %retv = select i1 %tobool, <16 x i8> %vld1, <16 x i8> %vld2 |
| 18 | ret <16 x i8> %retv |
| 19 | } |
| 20 | |
| Jeroen Ketema | ab99b59 | 2015-09-30 10:56:37 +0000 | [diff] [blame] | 21 | declare <16 x i8> @llvm.arm.neon.vld1.v16i8.p0i8(i8* , i32 ) |