[llvm] r358171 - [AArch64] Add lowering pattern for llvm.aarch64.neon.vcvtfxs2fp.f16.i64

[Diogo N. Sampaio via llvm-commits]

Author: dnsampaio
Date: Thu Apr 11 07:19:43 2019
New Revision: 358171

URL: http://llvm.org/viewvc/llvm-project?rev=358171&view=rev
Log:
[AArch64] Add lowering pattern for llvm.aarch64.neon.vcvtfxs2fp.f16.i64

Summary:  Add lowering pattern for llvm.aarch64.neon.vcvtfxs2fp.f16.i64

Reviewers: pbarrio, DavidSpickett, LukeGeeson

Reviewed By: LukeGeeson

Subscribers: javed.absar, kristof.beyls, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D60259


Modified:
    llvm/trunk/lib/Target/AArch64/AArch64InstrInfo.td
    llvm/trunk/test/CodeGen/AArch64/fp16_intrinsic_scalar_2op.ll

Modified: llvm/trunk/lib/Target/AArch64/AArch64InstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AArch64InstrInfo.td?rev=358171&r1=358170&r2=358171&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/AArch64InstrInfo.td (original)
+++ llvm/trunk/lib/Target/AArch64/AArch64InstrInfo.td Thu Apr 11 07:19:43 2019
@@ -5327,6 +5327,8 @@ def : Pat<(f16 (int_aarch64_neon_vcvtfxs
           (SCVTFh (EXTRACT_SUBREG FPR32:$Rn, hsub), vecshiftR16:$imm)>;
 def : Pat<(f16 (int_aarch64_neon_vcvtfxs2fp (i32 FPR32:$Rn), vecshiftR16:$imm)),
           (SCVTFh (EXTRACT_SUBREG FPR32:$Rn, hsub), vecshiftR16:$imm)>;
+def : Pat<(f16 (int_aarch64_neon_vcvtfxs2fp (i64 FPR64:$Rn), vecshiftR16:$imm)),
+          (SCVTFh (EXTRACT_SUBREG FPR64:$Rn, hsub), vecshiftR16:$imm)>;
 def : Pat<(f16 (int_aarch64_neon_vcvtfxu2fp
             (and FPR32:$Rn, (i32 65535)),
             vecshiftR16:$imm)),

Modified: llvm/trunk/test/CodeGen/AArch64/fp16_intrinsic_scalar_2op.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/fp16_intrinsic_scalar_2op.ll?rev=358171&r1=358170&r2=358171&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/AArch64/fp16_intrinsic_scalar_2op.ll (original)
+++ llvm/trunk/test/CodeGen/AArch64/fp16_intrinsic_scalar_2op.ll Thu Apr 11 07:19:43 2019
@@ -342,3 +342,13 @@ entry:
   %0 = trunc i32 %facg to i16
   ret i16 %0
 }
+
+define dso_local half @vcvth_n_f16_s64_test(i64 %a) {
+; CHECK-LABEL: vcvth_n_f16_s64_test:
+; CHECK:       fmov    d0, x0
+; CHECK-NEXT:  scvtf   h0, h0, #16
+; CHECK-NEXT:  ret
+entry:
+  %vcvth_n_f16_s64 = tail call half @llvm.aarch64.neon.vcvtfxs2fp.f16.i64(i64 %a, i32 16)
+  ret half %vcvth_n_f16_s64
+}