| ; 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 | |
| } |