[PATCH 1/3][rs6000] Replace vsx_xvcdpsp by vsx_xvcvdpsp

[Kewen.Lin]

Hi,

I noticed that vsx_xvcdpsp and vsx_xvcvdpsp are almost the same,
and vsx_xvcdpsp looks replaceable with vsx_xvcvdpsp since it's only
called by gen_*.

Bootstrapped and regress tested on powerpc64le-linux-gnu.


gcc/ChangeLog

2019-10-23  Kewen Lin  <li...@gcc.gnu.org>

        * config/rs6000/vsx.md (vsx_xvcdpsp): Remove define_insn.
        (UNSPEC_VSX_XVCDPSP): Remove.
        * config/rs6000/rs6000.c (rs6000_generate_float2_double_code):
        Replace gen_vsx_xvcdpsp by gen_vsx_xvcvdpsp.


>From 8c6309c131b7614ed8d6aeb4ca2d3d89ab0b8d38 Mon Sep 17 00:00:00 2001
From: Kewen Lin <li...@linux.ibm.com>
Date: Tue, 8 Oct 2019 01:51:06 -0500
Subject: [PATCH 1/3] Replace vsx_xvcdpsp by vsx_xvcvdpsp

---
 gcc/config/rs6000/rs6000.c | 4 ++--
 gcc/config/rs6000/vsx.md   | 9 ---------
 2 files changed, 2 insertions(+), 11 deletions(-)

diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index c2834bd..23898b1 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -25549,8 +25549,8 @@ rs6000_generate_float2_double_code (rtx dst, rtx src1, 
rtx src2)
   rtx_tmp2 = gen_reg_rtx (V4SFmode);
   rtx_tmp3 = gen_reg_rtx (V4SFmode);
 
-  emit_insn (gen_vsx_xvcdpsp (rtx_tmp2, rtx_tmp0));
-  emit_insn (gen_vsx_xvcdpsp (rtx_tmp3, rtx_tmp1));
+  emit_insn (gen_vsx_xvcvdpsp (rtx_tmp2, rtx_tmp0));
+  emit_insn (gen_vsx_xvcvdpsp (rtx_tmp3, rtx_tmp1));
 
   if (BYTES_BIG_ENDIAN)
     emit_insn (gen_p8_vmrgew_v4sf (dst, rtx_tmp2, rtx_tmp3));
diff --git a/gcc/config/rs6000/vsx.md b/gcc/config/rs6000/vsx.md
index f54d343..d6f079c 100644
--- a/gcc/config/rs6000/vsx.md
+++ b/gcc/config/rs6000/vsx.md
@@ -301,7 +301,6 @@
    UNSPEC_VSX_XVCVSXDDP
    UNSPEC_VSX_XVCVUXDDP
    UNSPEC_VSX_XVCVDPSXDS
-   UNSPEC_VSX_XVCDPSP
    UNSPEC_VSX_XVCVDPUXDS
    UNSPEC_VSX_SIGN_EXTEND
    UNSPEC_VSX_XVCVSPSXWS
@@ -2367,14 +2366,6 @@
   "xvcvuxdsp %x0,%x1"
   [(set_attr "type" "vecdouble")])
 
-(define_insn "vsx_xvcdpsp"
-  [(set (match_operand:V4SF 0 "vsx_register_operand" "=wa")
-       (unspec:V4SF [(match_operand:V2DF 1 "vsx_register_operand" "wa")]
-                    UNSPEC_VSX_XVCDPSP))]
-  "VECTOR_UNIT_VSX_P (V2DFmode)"
-  "xvcvdpsp %x0,%x1"
-  [(set_attr "type" "vecdouble")])
-
 ;; Convert from 32-bit to 64-bit types
 ;; Provide both vector and scalar targets
 (define_insn "vsx_xvcvsxwdp"
-- 
2.7.4