AVX512 : vpextrw.s implementation.

[igorb]

Summary

AVX512: Implemented encoding for vpextrw.s instructions.

[delena]

LGTM

llvm/trunk/lib/Target/X86/X86InstrAVX512.td

multiclass avx512_extract_elt_w<string OpcodeStr, X86VectorVTInfo _> {
   let Predicates = [HasBWI] in {
     def rr : AVX512Ii8<0xC5, MRMSrcReg, (outs GR32orGR64:$dst),
                   (ins _.RC:$src1, u8imm:$src2),
                   OpcodeStr#"\t{$src2, $src1, $dst|$dst, $src1, $src2}",
                   [(set GR32orGR64:$dst,
                         (X86pextrw (_.VT _.RC:$src1), imm:$src2))]>,
                   EVEX, PD;
 
+    def rr_REV : AVX512Ii8<0x15, MRMDestReg, (outs GR32orGR64:$dst),
+                   (ins _.RC:$src1, u8imm:$src2),
+                   OpcodeStr#".s\t{$src2, $src1, $dst|$dst, $src1, $src2}", []>,
+                   EVEX, TAPD;
+
     defm NAME : avx512_extract_elt_bw_m<0x15, OpcodeStr, X86pextrw, _>, TAPD;
   }
 }
 
 multiclass avx512_extract_elt_dq<string OpcodeStr, X86VectorVTInfo _,
                                                             RegisterClass GRC> {
   let Predicates = [HasDQI] in {
     def rr : AVX512Ii8<0x16, MRMDestReg, (outs GRC:$dst),

llvm/trunk/test/MC/X86/x86-64-avx512bw.s

 // CHECK: vpbroadcastw %eax, %zmm24 {%k1}
 // CHECK:  encoding: [0x62,0x62,0x7d,0x49,0x7b,0xc0]
           vpbroadcastw %eax, %zmm24 {%k1}
 
 // CHECK: vpbroadcastw %eax, %zmm24 {%k1} {z}
 // CHECK:  encoding: [0x62,0x62,0x7d,0xc9,0x7b,0xc0]
           vpbroadcastw %eax, %zmm24 {%k1} {z}
 
+// CHECK: vpextrw.s $171, %xmm28, %eax
+// CHECK:  encoding: [0x62,0x63,0x7d,0x08,0x15,0xe0,0xab]
+          vpextrw.s $0xab, %xmm28, %eax
+
+// CHECK: vpextrw.s $123, %xmm28, %eax
+// CHECK:  encoding: [0x62,0x63,0x7d,0x08,0x15,0xe0,0x7b]
+          vpextrw.s $0x7b, %xmm28, %eax
+
+// CHECK: vpextrw.s $123, %xmm28, %r8d
+// CHECK:  encoding: [0x62,0x43,0x7d,0x08,0x15,0xe0,0x7b]
+          vpextrw.s $0x7b, %xmm28, %r8d
+
+// CHECK: vpextrw.s $171, %xmm28, %eax
+// CHECK:  encoding: [0x62,0x63,0x7d,0x08,0x15,0xe0,0xab]
+          vpextrw.s $0xab, %xmm28, %eax
+
+// CHECK: vpextrw.s $123, %xmm28, %eax
+// CHECK:  encoding: [0x62,0x63,0x7d,0x08,0x15,0xe0,0x7b]
+          vpextrw.s $0x7b, %xmm28, %eax
+
+// CHECK: vpextrw.s $123, %xmm28, %r8d
+// CHECK:  encoding: [0x62,0x43,0x7d,0x08,0x15,0xe0,0x7b]
+          vpextrw.s $0x7b, %xmm28, %r8d
+
+// CHECK: vpextrw.s $171, %xmm20, %eax
+// CHECK:  encoding: [0x62,0xe3,0x7d,0x08,0x15,0xe0,0xab]
+          vpextrw.s $0xab, %xmm20, %eax
+
+// CHECK: vpextrw.s $123, %xmm20, %eax
+// CHECK:  encoding: [0x62,0xe3,0x7d,0x08,0x15,0xe0,0x7b]
+          vpextrw.s $0x7b, %xmm20, %eax
+
+// CHECK: vpextrw.s $123, %xmm20, %r8d
+// CHECK:  encoding: [0x62,0xc3,0x7d,0x08,0x15,0xe0,0x7b]
+          vpextrw.s $0x7b, %xmm20, %r8d
+
+// CHECK: vpextrw.s $171, %xmm19, %eax
+// CHECK:  encoding: [0x62,0xe3,0x7d,0x08,0x15,0xd8,0xab]
+          vpextrw.s $0xab, %xmm19, %eax
+
+// CHECK: vpextrw.s $123, %xmm19, %eax
+// CHECK:  encoding: [0x62,0xe3,0x7d,0x08,0x15,0xd8,0x7b]
+          vpextrw.s $0x7b, %xmm19, %eax
+
+// CHECK: vpextrw.s $123, %xmm19, %r8d
+// CHECK:  encoding: [0x62,0xc3,0x7d,0x08,0x15,0xd8,0x7b]
+          vpextrw.s $0x7b, %xmm19, %r8d
+