| ; REQUIRES: asserts |
| ; RUN: llc < %s -mtriple=thumbv7-apple-ios -disable-ifcvt-diamond -stats 2>&1 | FileCheck %s |
| ; Evaluate the two vld1.8 instructions in separate MBB's, |
| ; instead of stalling on one and conditionally overwriting its result. |
| ; |
| ; Update: After if-conversion the two vld1.8 instructions are in the same MBB |
| ; again. So we disable this if-conversion to eliminate its influence to this |
| ; test. |
| |
| ; CHECK-NOT: Number of pipeline stalls |
| define <16 x i8> @multiselect(i32 %avail, i8* %foo, i8* %bar) { |
| entry: |
| %vld1 = call <16 x i8> @llvm.arm.neon.vld1.v16i8.p0i8(i8* %foo, i32 1) |
| %vld2 = call <16 x i8> @llvm.arm.neon.vld1.v16i8.p0i8(i8* %bar, i32 1) |
| %and = and i32 %avail, 3 |
| %tobool = icmp eq i32 %and, 0 |
| %retv = select i1 %tobool, <16 x i8> %vld1, <16 x i8> %vld2 |
| ret <16 x i8> %retv |
| } |
| |
| declare <16 x i8> @llvm.arm.neon.vld1.v16i8.p0i8(i8* , i32 ) |
