| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=thumbv8--linux-gnueabihf | FileCheck %s |
| |
| ;; This used to cause a backend crash about not being able to |
| ;; select ROTL. Make sure if generates the basic VSHL/VSHR. |
| define <2 x i64> @testcase(ptr %in) { |
| ; CHECK-LABEL: testcase: |
| ; CHECK: @ %bb.0: |
| ; CHECK-NEXT: vld1.64 {d16, d17}, [r0] |
| ; CHECK-NEXT: vshr.u64 q9, q8, #8 |
| ; CHECK-NEXT: vshl.i64 q8, q8, #56 |
| ; CHECK-NEXT: vorr q0, q8, q9 |
| ; CHECK-NEXT: bx lr |
| %1 = load <2 x i64>, ptr %in |
| %2 = lshr <2 x i64> %1, <i64 8, i64 8> |
| %3 = shl <2 x i64> %1, <i64 56, i64 56> |
| %4 = or <2 x i64> %2, %3 |
| ret <2 x i64> %4 |
| } |