| ; RUN: llc -mtriple=aarch64 -mattr=+v8.9a --global-isel=0 < %s | FileCheck %s |
| ; RUN: llc -mtriple=aarch64 -mattr=+v8.9a --global-isel=1 --global-isel-abort=1 < %s | FileCheck %s |
| |
| @a = internal global ptr null, align 8 |
| @b = external global ptr, align 8 |
| |
| define void @test(ptr %i, i32 %j) nounwind ssp { |
| entry: |
| ; CHECK-LABEL: @test |
| %j.addr = alloca i32, align 4 |
| store i32 %j, ptr %j.addr, align 4, !tbaa !0 |
| %tmp = bitcast ptr %j.addr to ptr |
| |
| %i.next = getelementptr i8, ptr %i, i64 2 |
| |
| ; Verify prefetching works for all the different kinds of pointers we might |
| ; want to prefetch. |
| |
| ; CHECK: prfm pldl1keep, |
| call void @llvm.aarch64.prefetch(ptr null, i32 0, i32 0, i32 0, i32 1) |
| |
| ; CHECK: prfum pldl1keep, |
| call void @llvm.aarch64.prefetch(ptr %tmp, i32 0, i32 0, i32 0, i32 1) |
| |
| ; CHECK: prfm pldl1keep, |
| call void @llvm.aarch64.prefetch(ptr %i, i32 0, i32 0, i32 0, i32 1) |
| |
| ; CHECK: prfum pldl1keep, |
| call void @llvm.aarch64.prefetch(ptr %i.next, i32 0, i32 0, i32 0, i32 1) |
| |
| ; CHECK: prfm pldl1keep, |
| call void @llvm.aarch64.prefetch(ptr @a, i32 0, i32 0, i32 0, i32 1) |
| |
| ; CHECK: prfm pldl1keep, |
| call void @llvm.aarch64.prefetch(ptr @b, i32 0, i32 0, i32 0, i32 1) |
| |
| ; Verify that we can generate every single valid prefetch value. |
| |
| ; CHECK: prfm pstl1keep, |
| call void @llvm.aarch64.prefetch(ptr null, i32 1, i32 0, i32 0, i32 1) |
| |
| ; CHECK: prfm pldl2keep, |
| call void @llvm.aarch64.prefetch(ptr null, i32 0, i32 1, i32 0, i32 1) |
| |
| ; CHECK: prfm pldl3keep, |
| call void @llvm.aarch64.prefetch(ptr null, i32 0, i32 2, i32 0, i32 1) |
| |
| ; CHECK: prfm pldslckeep, |
| call void @llvm.aarch64.prefetch(ptr null, i32 0, i32 3, i32 0, i32 1) |
| |
| ; CHECK: prfm pldl1strm, |
| call void @llvm.aarch64.prefetch(ptr null, i32 0, i32 0, i32 1, i32 1) |
| |
| ; CHECK: prfm plil1keep, |
| call void @llvm.aarch64.prefetch(ptr null, i32 0, i32 0, i32 0, i32 0) |
| |
| ret void |
| } |
| |
| declare void @llvm.aarch64.prefetch(ptr readonly, i32 immarg, i32 immarg, i32 immarg, i32 immarg) #0 |
| |
| attributes #0 = { inaccessiblemem_or_argmemonly nounwind willreturn } |
| |
| !0 = !{!"int", !1} |
| !1 = !{!"omnipotent char", !2} |
| !2 = !{!"Simple C/C++ TBAA"} |
| !3 = !{!"any pointer", !1} |