| ; RUN: llc < %s -march=arm64 -aarch64-neon-syntax=apple | FileCheck %s |
| |
| ; DAGCombine to transform a conversion of an extract_vector_elt to an |
| ; extract_vector_elt of a conversion, which saves a round trip of copies |
| ; of the value to a GPR and back to and FPR. |
| ; rdar://11855286 |
| define double @foo0(<2 x i64> %a) nounwind { |
| ; CHECK: scvtf.2d [[REG:v[0-9]+]], v0, #9 |
| ; CHECK-NEXT: ins.d v0[0], [[REG]][1] |
| %vecext = extractelement <2 x i64> %a, i32 1 |
| %fcvt_n = tail call double @llvm.aarch64.neon.vcvtfxs2fp.f64.i64(i64 %vecext, i32 9) |
| ret double %fcvt_n |
| } |
| |
| declare double @llvm.aarch64.neon.vcvtfxs2fp.f64.i64(i64, i32) nounwind readnone |
