[llvm] r336387 - This is a recommit of r336322, previously reverted in r336324 due to

Sander de Smalen via llvm-commits llvm-commits at lists.llvm.org
Thu Jul 5 13:21:22 PDT 2018 

Author: s.desmalen
Date: Thu Jul  5 13:21:21 2018
New Revision: 336387

URL: http://llvm.org/viewvc/llvm-project?rev=336387&view=rev
Log:
This is a recommit of r336322, previously reverted in r336324 due to
a deficiency in TableGen that has been addressed in r336334.

[AArch64][SVE] Asm: Support for predicated FP rounding instructions.

This patch also adds instructions for predicated FP square-root and
reciprocal exponent.

The added instructions are:
- FRINTI  Round to integral value (current FPCR rounding mode)
- FRINTX  Round to integral value (current FPCR rounding mode, signalling inexact)
- FRINTA  Round to integral value (to nearest, with ties away from zero)
- FRINTN  Round to integral value (to nearest, with ties to even)
- FRINTZ  Round to integral value (toward zero)
- FRINTM  Round to integral value (toward minus Infinity)
- FRINTP  Round to integral value (toward plus Infinity)
- FSQRT   Floating-point square root
- FRECPX  Floating-point reciprocal exponent

Added:
    llvm/trunk/test/MC/AArch64/SVE/frecpx-diagnostics.s
      - copied unchanged from r336323, llvm/trunk/test/MC/AArch64/SVE/frecpx-diagnostics.s
    llvm/trunk/test/MC/AArch64/SVE/frecpx.s
      - copied unchanged from r336323, llvm/trunk/test/MC/AArch64/SVE/frecpx.s
    llvm/trunk/test/MC/AArch64/SVE/frinta-diagnostics.s
      - copied unchanged from r336323, llvm/trunk/test/MC/AArch64/SVE/frinta-diagnostics.s
    llvm/trunk/test/MC/AArch64/SVE/frinta.s
      - copied unchanged from r336323, llvm/trunk/test/MC/AArch64/SVE/frinta.s
    llvm/trunk/test/MC/AArch64/SVE/frinti-diagnostics.s
      - copied unchanged from r336323, llvm/trunk/test/MC/AArch64/SVE/frinti-diagnostics.s
    llvm/trunk/test/MC/AArch64/SVE/frinti.s
      - copied unchanged from r336323, llvm/trunk/test/MC/AArch64/SVE/frinti.s
    llvm/trunk/test/MC/AArch64/SVE/frintm-diagnostics.s
      - copied unchanged from r336323, llvm/trunk/test/MC/AArch64/SVE/frintm-diagnostics.s
    llvm/trunk/test/MC/AArch64/SVE/frintm.s
      - copied unchanged from r336323, llvm/trunk/test/MC/AArch64/SVE/frintm.s
    llvm/trunk/test/MC/AArch64/SVE/frintn-diagnostics.s
      - copied unchanged from r336323, llvm/trunk/test/MC/AArch64/SVE/frintn-diagnostics.s
    llvm/trunk/test/MC/AArch64/SVE/frintn.s
      - copied unchanged from r336323, llvm/trunk/test/MC/AArch64/SVE/frintn.s
    llvm/trunk/test/MC/AArch64/SVE/frintp-diagnostics.s
      - copied unchanged from r336323, llvm/trunk/test/MC/AArch64/SVE/frintp-diagnostics.s
    llvm/trunk/test/MC/AArch64/SVE/frintp.s
      - copied unchanged from r336323, llvm/trunk/test/MC/AArch64/SVE/frintp.s
    llvm/trunk/test/MC/AArch64/SVE/frintx-diagnostics.s
      - copied unchanged from r336323, llvm/trunk/test/MC/AArch64/SVE/frintx-diagnostics.s
    llvm/trunk/test/MC/AArch64/SVE/frintx.s
      - copied unchanged from r336323, llvm/trunk/test/MC/AArch64/SVE/frintx.s
    llvm/trunk/test/MC/AArch64/SVE/frintz-diagnostics.s
      - copied unchanged from r336323, llvm/trunk/test/MC/AArch64/SVE/frintz-diagnostics.s
    llvm/trunk/test/MC/AArch64/SVE/frintz.s
      - copied unchanged from r336323, llvm/trunk/test/MC/AArch64/SVE/frintz.s
    llvm/trunk/test/MC/AArch64/SVE/fsqrt-diagnostics.s
      - copied unchanged from r336323, llvm/trunk/test/MC/AArch64/SVE/fsqrt-diagnostics.s
    llvm/trunk/test/MC/AArch64/SVE/fsqrt.s
      - copied unchanged from r336323, llvm/trunk/test/MC/AArch64/SVE/fsqrt.s
Modified:
    llvm/trunk/lib/Target/AArch64/AArch64SVEInstrInfo.td
    llvm/trunk/lib/Target/AArch64/SVEInstrFormats.td

Modified: llvm/trunk/lib/Target/AArch64/AArch64SVEInstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AArch64SVEInstrInfo.td?rev=336387&r1=336386&r2=336387&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/AArch64SVEInstrInfo.td (original)
+++ llvm/trunk/lib/Target/AArch64/AArch64SVEInstrInfo.td Thu Jul  5 13:21:21 2018
@@ -716,6 +716,16 @@ let Predicates = [HasSVE] in {
   def FCVTZS_ZPmZ_DtoD : sve_fp_2op_p_zd<0b1111110, "fcvtzs", ZPR64, ZPR64>;
   def FCVTZU_ZPmZ_DtoD : sve_fp_2op_p_zd<0b1111111, "fcvtzu", ZPR64, ZPR64>;
 
+  defm FRINTN_ZPmZ : sve_fp_2op_p_zd_HSD<0b00000, "frintn">;
+  defm FRINTP_ZPmZ : sve_fp_2op_p_zd_HSD<0b00001, "frintp">;
+  defm FRINTM_ZPmZ : sve_fp_2op_p_zd_HSD<0b00010, "frintm">;
+  defm FRINTZ_ZPmZ : sve_fp_2op_p_zd_HSD<0b00011, "frintz">;
+  defm FRINTA_ZPmZ : sve_fp_2op_p_zd_HSD<0b00100, "frinta">;
+  defm FRINTX_ZPmZ : sve_fp_2op_p_zd_HSD<0b00110, "frintx">;
+  defm FRINTI_ZPmZ : sve_fp_2op_p_zd_HSD<0b00111, "frinti">;
+  defm FRECPX_ZPmZ : sve_fp_2op_p_zd_HSD<0b01100, "frecpx">;
+  defm FSQRT_ZPmZ  : sve_fp_2op_p_zd_HSD<0b01101, "fsqrt">;
+
   // InstAliases
   def : InstAlias<"mov $Zd, $Zn",
                   (ORR_ZZZ ZPR64:$Zd, ZPR64:$Zn, ZPR64:$Zn), 1>;

Modified: llvm/trunk/lib/Target/AArch64/SVEInstrFormats.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/SVEInstrFormats.td?rev=336387&r1=336386&r2=336387&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/SVEInstrFormats.td (original)
+++ llvm/trunk/lib/Target/AArch64/SVEInstrFormats.td Thu Jul  5 13:21:21 2018
@@ -1018,7 +1018,12 @@ class sve_fp_2op_p_zd<bits<7> opc, strin
   let Constraints = "$Zd = $_Zd";
 }
 
-
+multiclass sve_fp_2op_p_zd_HSD<bits<5> opc, string asm> {
+  def _H : sve_fp_2op_p_zd<{ 0b01, opc }, asm, ZPR16, ZPR16>;
+  def _S : sve_fp_2op_p_zd<{ 0b10, opc }, asm, ZPR32, ZPR32>;
+  def _D : sve_fp_2op_p_zd<{ 0b11, opc }, asm, ZPR64, ZPR64>;
+}
+ 
 //===----------------------------------------------------------------------===//
 // SVE Integer Arithmetic - Binary Predicated Group
 //===----------------------------------------------------------------------===//

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