From fe0c6ead85ea4fc03f4f90d9ff22c398354796bf Mon Sep 17 00:00:00 2001
From: Elena Demikhovsky <elena.demikhovsky@intel.com>
Date: Wed, 27 Aug 2014 07:38:43 +0000
Subject: [PATCH] AVX-512: Added intrinsic for VMOVSS store form with mask.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216530 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/X86/X86InstrAVX512.td      | 10 ++++++++++
 test/CodeGen/X86/avx512-intrinsics.ll |  9 +++++++++
 2 files changed, 19 insertions(+)

diff --git a/lib/Target/X86/X86InstrAVX512.td b/lib/Target/X86/X86InstrAVX512.td
index a372a60c336..e264a3de437 100644
--- a/lib/Target/X86/X86InstrAVX512.td
+++ b/lib/Target/X86/X86InstrAVX512.td
@@ -2088,10 +2088,16 @@ multiclass avx512_move_scalar <string asm, RegisterClass RC,
               !strconcat(asm, " \t{$src, $dst|$dst, $src}"),
               [(set RC:$dst, (mem_pat addr:$src))], IIC_SSE_MOV_S_RM>,
               EVEX, VEX_LIG;
+  let mayStore = 1 in {
   def mr: SI<0x11, MRMDestMem, (outs), (ins x86memop:$dst, RC:$src),
              !strconcat(asm, " \t{$src, $dst|$dst, $src}"),
              [(store RC:$src, addr:$dst)], IIC_SSE_MOV_S_MR>,
              EVEX, VEX_LIG;
+  def mrk: SI<0x11, MRMDestMem, (outs), (ins x86memop:$dst, VK1WM:$mask, RC:$src),
+             !strconcat(asm, " \t{$src, $dst {${mask}}|$dst {${mask}}, $src}"),
+             [], IIC_SSE_MOV_S_MR>,
+             EVEX, VEX_LIG, EVEX_K;
+  } // mayStore
   } //hasSideEffects = 0
 }
 
@@ -2111,6 +2117,10 @@ def : Pat<(f64 (X86select VK1WM:$mask, (f64 FR64X:$src1), (f64 FR64X:$src2))),
           (COPY_TO_REGCLASS (VMOVSDZrrk (COPY_TO_REGCLASS FR64X:$src2, VR128X),
            VK1WM:$mask, (f64 (IMPLICIT_DEF)), FR64X:$src1), FR64X)>;
 
+def : Pat<(int_x86_avx512_mask_store_ss addr:$dst, VR128X:$src, GR8:$mask),
+          (VMOVSSZmrk addr:$dst, (i1 (COPY_TO_REGCLASS GR8:$mask, VK1WM)),
+           (COPY_TO_REGCLASS VR128X:$src, FR32X))>;
+
 // For the disassembler
 let isCodeGenOnly = 1, ForceDisassemble = 1, hasSideEffects = 0 in {
   def VMOVSSZrr_REV : SI<0x11, MRMDestReg, (outs VR128X:$dst),
diff --git a/test/CodeGen/X86/avx512-intrinsics.ll b/test/CodeGen/X86/avx512-intrinsics.ll
index a586f32c5d4..3762f60986f 100644
--- a/test/CodeGen/X86/avx512-intrinsics.ll
+++ b/test/CodeGen/X86/avx512-intrinsics.ll
@@ -636,3 +636,12 @@ define <16 x i32> @test_maskz_valign_d(<16 x i32> %a, <16 x i32> %b, i16 %mask)
 }
 
 declare <16 x i32> @llvm.x86.avx512.mask.valign.d.512(<16 x i32>, <16 x i32>, i8, <16 x i32>, i16)
+
+define void @test_mask_store_ss(i8* %ptr, <4 x float> %data, i8 %mask) {
+ ; CHECK-LABEL: test_mask_store_ss
+ ; CHECK: vmovss %xmm0, (%rdi) {%k1}     ## encoding: [0x62,0xf1,0x7e,0x09,0x11,0x07]
+ call void @llvm.x86.avx512.mask.store.ss(i8* %ptr, <4 x float> %data, i8 %mask)
+ ret void
+}
+
+declare void @llvm.x86.avx512.mask.store.ss(i8*, <4 x float>, i8 )
\ No newline at end of file
-- 
2.11.0