| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s | FileCheck %s |
| |
| target triple = "aarch64-unknown-linux-gnu" |
| |
| ; |
| ; RDFFR |
| ; |
| |
| define <vscale x 16 x i1> @rdffr() #0 { |
| ; CHECK-LABEL: rdffr: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: rdffr p0.b |
| ; CHECK-NEXT: ret |
| %out = call <vscale x 16 x i1> @llvm.aarch64.sve.rdffr() |
| ret <vscale x 16 x i1> %out |
| } |
| |
| define <vscale x 16 x i1> @rdffr_z(<vscale x 16 x i1> %pg) #0 { |
| ; CHECK-LABEL: rdffr_z: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: rdffr p0.b, p0/z |
| ; CHECK-NEXT: ret |
| %out = call <vscale x 16 x i1> @llvm.aarch64.sve.rdffr.z(<vscale x 16 x i1> %pg) |
| ret <vscale x 16 x i1> %out |
| } |
| |
| ; Test that rdffr.z followed by ptest optimizes to flags-setting rdffrs. |
| define i1 @rdffr_z_ptest(<vscale x 16 x i1> %pg) #0 { |
| ; CHECK-LABEL: rdffr_z_ptest: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: rdffrs p0.b, p0/z |
| ; CHECK-NEXT: cset w0, ne |
| ; CHECK-NEXT: ret |
| %rdffr = call <vscale x 16 x i1> @llvm.aarch64.sve.rdffr.z(<vscale x 16 x i1> %pg) |
| %out = call i1 @llvm.aarch64.sve.ptest.any.nxv16i1(<vscale x 16 x i1> %pg, <vscale x 16 x i1> %rdffr) |
| ret i1 %out |
| } |
| |
| ; |
| ; SETFFR |
| ; |
| |
| define void @set_ffr() #0 { |
| ; CHECK-LABEL: set_ffr: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: setffr |
| ; CHECK-NEXT: ret |
| call void @llvm.aarch64.sve.setffr() |
| ret void |
| } |
| |
| ; |
| ; WRFFR |
| ; |
| |
| define void @wrffr(<vscale x 16 x i1> %a) #0 { |
| ; CHECK-LABEL: wrffr: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: wrffr p0.b |
| ; CHECK-NEXT: ret |
| call void @llvm.aarch64.sve.wrffr(<vscale x 16 x i1> %a) |
| ret void |
| } |
| |
| declare <vscale x 16 x i1> @llvm.aarch64.sve.rdffr() |
| declare <vscale x 16 x i1> @llvm.aarch64.sve.rdffr.z(<vscale x 16 x i1>) |
| declare void @llvm.aarch64.sve.setffr() |
| declare void @llvm.aarch64.sve.wrffr(<vscale x 16 x i1>) |
| |
| declare i1 @llvm.aarch64.sve.ptest.any.nxv16i1(<vscale x 16 x i1>, <vscale x 16 x i1>) |
| |
| attributes #0 = { "target-features"="+sve" } |