From fa2f4fd9a2838c98966ed30a4e5e404338d8a0f3 Mon Sep 17 00:00:00 2001
From: Bruno Cardoso Lopes <bruno.cardoso@gmail.com>
Date: Fri, 12 Aug 2011 21:48:22 +0000
Subject: [PATCH] Move code around and add comments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137518 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/X86/X86InstrSSE.td | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)

diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td
index 60c544169cd..a8d6a36a1f1 100644
--- a/lib/Target/X86/X86InstrSSE.td
+++ b/lib/Target/X86/X86InstrSSE.td
@@ -5615,7 +5615,7 @@ defm VMASKMOVPD : avx_movmask_rm<0x2D, 0x2F, "vmaskmovpd",
                                  memopv2f64, memopv4f64>;
 
 //===----------------------------------------------------------------------===//
-// VPERM - Permute Floating-Point Values
+// VPERMIL - Permute Single and Double Floating-Point Values
 //
 multiclass avx_permil<bits<8> opc_rm, bits<8> opc_rmi, string OpcodeStr,
                       RegisterClass RC, X86MemOperand x86memop_f,
@@ -5657,6 +5657,18 @@ defm VPERMILPDY : avx_permil<0x0D, 0x05, "vpermilpd", VR256, f256mem, i256mem,
                              int_x86_avx_vpermilvar_pd_256,
                              int_x86_avx_vpermil_pd_256>;
 
+def : Pat<(v8f32 (X86VPermilpsy VR256:$src1, (i8 imm:$imm))),
+          (VPERMILPSYri VR256:$src1, imm:$imm)>;
+def : Pat<(v4f64 (X86VPermilpdy VR256:$src1, (i8 imm:$imm))),
+          (VPERMILPDYri VR256:$src1, imm:$imm)>;
+def : Pat<(v8i32 (X86VPermilpsy VR256:$src1, (i8 imm:$imm))),
+          (VPERMILPSYri VR256:$src1, imm:$imm)>;
+def : Pat<(v4i64 (X86VPermilpdy VR256:$src1, (i8 imm:$imm))),
+          (VPERMILPDYri VR256:$src1, imm:$imm)>;
+
+//===----------------------------------------------------------------------===//
+// VPERM2F128 - Permute Floating-Point Values in 128-bit chunks
+//
 def VPERM2F128rr : AVXAIi8<0x06, MRMSrcReg, (outs VR256:$dst),
           (ins VR256:$src1, VR256:$src2, i8imm:$src3),
           "vperm2f128\t{$src3, $src2, $src1, $dst|$dst, $src1, $src2, $src3}",
@@ -5683,16 +5695,6 @@ def : Pat<(int_x86_avx_vperm2f128_si_256
                   VR256:$src1, (memopv8i32 addr:$src2), imm:$src3),
           (VPERM2F128rm VR256:$src1, addr:$src2, imm:$src3)>;
 
-// Shuffle with VPERMIL instructions
-def : Pat<(v8f32 (X86VPermilpsy VR256:$src1, (i8 imm:$imm))),
-          (VPERMILPSYri VR256:$src1, imm:$imm)>;
-def : Pat<(v4f64 (X86VPermilpdy VR256:$src1, (i8 imm:$imm))),
-          (VPERMILPDYri VR256:$src1, imm:$imm)>;
-def : Pat<(v8i32 (X86VPermilpsy VR256:$src1, (i8 imm:$imm))),
-          (VPERMILPSYri VR256:$src1, imm:$imm)>;
-def : Pat<(v4i64 (X86VPermilpdy VR256:$src1, (i8 imm:$imm))),
-          (VPERMILPDYri VR256:$src1, imm:$imm)>;
-
 //===----------------------------------------------------------------------===//
 // VZERO - Zero YMM registers
 //
-- 
2.34.1