From: Adam Nemet <anemet@apple.com>
Date: Wed, 2 Jul 2014 21:25:58 +0000 (+0000)
Subject: [X86] AVX512: Generate Pat<>'s for the vpermt2* intrinsics via multiclass
X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=commitdiff_plain;h=31d2114a347432b107f1ba9cb0414afe3627550d

[X86] AVX512: Generate Pat<>'s for the vpermt2* intrinsics via multiclass

This new multiclass, avx512_perm_table_3src derives from the current one and
provides the Pat<>.  The next patch will add another Pat<> that uses the
writemask.

Note that I dropped the type annotation from the intrinsic call, i.e.: (v16f32
VR512:$src1) -> R512:$src1.  I think that this should be fine (at least many
intrinsic calls don't provide them) and it greatly reduces the number of
template arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212222 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86InstrAVX512.td b/lib/Target/X86/X86InstrAVX512.td
index daff30bea45..dd1a52facf0 100644
--- a/lib/Target/X86/X86InstrAVX512.td
+++ b/lib/Target/X86/X86InstrAVX512.td
@@ -691,30 +691,25 @@ defm VPERMI2PD : avx512_perm_3src<0x77, "vpermi2pd",  VR512, memopv8f64,
                                   i512mem, X86VPermiv3, v8f64, VK8WM>,
                   EVEX_V512, VEX_W, EVEX_CD8<64, CD8VF>;
 
-defm VPERMT2D  : avx512_perm_3src<0x7E, "vpermt2d",  VR512, memopv16i32, i512mem, 
+multiclass avx512_perm_table_3src<bits<8> opc, string Suffix, RegisterClass RC,
+                          PatFrag mem_frag, X86MemOperand x86memop,
+                          SDNode OpNode, ValueType OpVT, RegisterClass KRC> :
+        avx512_perm_3src<opc, "vpermt2"##Suffix, RC, mem_frag, x86memop, OpNode,
+                         OpVT, KRC> {
+  def : Pat<(OpVT (!cast<Intrinsic>("int_x86_avx512_mask_vpermt_"##Suffix##"_512")
+                     VR512:$idx, VR512:$src1, VR512:$src2, -1)),
+            (!cast<Instruction>(NAME#rr) VR512:$src1, VR512:$idx, VR512:$src2)>;
+}
+
+defm VPERMT2D  : avx512_perm_table_3src<0x7E, "d",  VR512, memopv16i32, i512mem,
                                X86VPermv3, v16i32, VK16WM>, EVEX_V512, EVEX_CD8<32, CD8VF>;
-defm VPERMT2Q  : avx512_perm_3src<0x7E, "vpermt2q",  VR512, memopv8i64, i512mem, 
+defm VPERMT2Q  : avx512_perm_table_3src<0x7E, "q",  VR512, memopv8i64, i512mem,
                                X86VPermv3, v8i64, VK8WM>, EVEX_V512, VEX_W, EVEX_CD8<64, CD8VF>;
-defm VPERMT2PS : avx512_perm_3src<0x7F, "vpermt2ps",  VR512, memopv16f32, i512mem, 
+defm VPERMT2PS : avx512_perm_table_3src<0x7F, "ps",  VR512, memopv16f32, i512mem,
                                X86VPermv3, v16f32, VK16WM>, EVEX_V512, EVEX_CD8<32, CD8VF>;
-defm VPERMT2PD : avx512_perm_3src<0x7F, "vpermt2pd",  VR512, memopv8f64, i512mem, 
+defm VPERMT2PD : avx512_perm_table_3src<0x7F, "pd",  VR512, memopv8f64, i512mem,
                                X86VPermv3, v8f64, VK8WM>, EVEX_V512, VEX_W, EVEX_CD8<64, CD8VF>;
 
-def : Pat<(v16f32 (int_x86_avx512_mask_vpermt_ps_512 (v16i32 VR512:$idx),
-                   (v16f32 VR512:$src1), (v16f32 VR512:$src2), (i16 -1))),
-          (VPERMT2PSrr VR512:$src1, VR512:$idx, VR512:$src2)>;
-
-def : Pat<(v16i32 (int_x86_avx512_mask_vpermt_d_512 (v16i32 VR512:$idx),
-                   (v16i32 VR512:$src1), (v16i32 VR512:$src2), (i16 -1))),
-          (VPERMT2Drr VR512:$src1, VR512:$idx, VR512:$src2)>;
-
-def : Pat<(v8f64 (int_x86_avx512_mask_vpermt_pd_512 (v8i64 VR512:$idx),
-                   (v8f64 VR512:$src1), (v8f64 VR512:$src2), (i8 -1))),
-          (VPERMT2PDrr VR512:$src1, VR512:$idx, VR512:$src2)>;
-
-def : Pat<(v8i64 (int_x86_avx512_mask_vpermt_q_512 (v8i64 VR512:$idx),
-                   (v8i64 VR512:$src1), (v8i64 VR512:$src2), (i8 -1))),
-          (VPERMT2Qrr VR512:$src1, VR512:$idx, VR512:$src2)>;
 //===----------------------------------------------------------------------===//
 // AVX-512 - BLEND using mask
 //