| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sve < %s 2>%t | FileCheck %s |
| ; RUN: FileCheck --check-prefix=WARN --allow-empty %s <%t |
| |
| ; If this check fails please read test/CodeGen/AArch64/README for instructions on how to resolve it. |
| ; WARN-NOT: warning |
| |
| ; Test that DAGCombiner doesn't drop the scalable flag when it tries to fold: |
| ; extract_subv (bitcast X), Index --> bitcast (extract_subv X, Index') |
| define <vscale x 16 x i8> @extract_nxv16i8_nxv4i64(<vscale x 4 x i64> %z0_z1) { |
| ; CHECK-LABEL: extract_nxv16i8_nxv4i64: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: mov z0.d, z1.d |
| ; CHECK-NEXT: ret |
| %z0_z1_bc = bitcast <vscale x 4 x i64> %z0_z1 to <vscale x 32 x i8> |
| %ext = call <vscale x 16 x i8> @llvm.aarch64.sve.tuple.get.nxv32i8(<vscale x 32 x i8> %z0_z1_bc, i32 1) |
| ret <vscale x 16 x i8> %ext |
| } |
| |
| |
| define <vscale x 2 x i64> @extract_nxv2i64_nxv32i8(<vscale x 32 x i8> %z0_z1) { |
| ; CHECK-LABEL: extract_nxv2i64_nxv32i8: |
| ; CHECK: // %bb.0: |
| ; CHECK-NEXT: mov z0.d, z1.d |
| ; CHECK-NEXT: ret |
| %z0_z1_bc = bitcast <vscale x 32 x i8> %z0_z1 to <vscale x 4 x i64> |
| %ext = call <vscale x 2 x i64> @llvm.aarch64.sve.tuple.get.nxv4i64(<vscale x 4 x i64> %z0_z1_bc, i32 1) |
| ret <vscale x 2 x i64> %ext |
| } |
| |
| declare <vscale x 2 x i64> @llvm.aarch64.sve.tuple.get.nxv4i64(<vscale x 4 x i64>, i32) |
| declare <vscale x 16 x i8> @llvm.aarch64.sve.tuple.get.nxv32i8(<vscale x 32 x i8>, i32) |