Revert "remove f16 check"

This reverts commit be0013472904aaa960ff1b5fe1add5b5be79973d.

Author: mattarde

llvm/lib/Target/X86/X86ISelLowering.cpp

@@ -38365,7 +38365,8 @@ static bool matchUnaryShuffle(MVT MaskVT, ArrayRef<int> Mask,
 
   // Match against a VZEXT_MOVL instruction, SSE1 only supports 32-bits (MOVSS).
   if (((MaskEltSize == 32) || (MaskEltSize == 64 && Subtarget.hasSSE2()) ||
-       (MaskEltSize == 16 && Subtarget.hasAVX10_2())) &&
+       (MaskEltSize == 16 &&
+        (Subtarget.hasFP16() || Subtarget.hasAVX10_2()))) &&
       isUndefOrEqual(Mask[0], 0) &&
       isUndefOrZeroInRange(Mask, 1, NumMaskElts - 1)) {
     Shuffle = X86ISD::VZEXT_MOVL;

llvm/test/CodeGen/X86/avx512fp16-mov.ll

@@ -2094,14 +2094,14 @@ for.end:                                          ; preds = %for.body.preheader,
 define <16 x i32> @pr52561(<16 x i32> %a, <16 x i32> %b) "min-legal-vector-width"="256" "prefer-vector-width"="256" nounwind {
 ; X64-LABEL: pr52561:
 ; X64:       # %bb.0:
-; X64-NEXT:    vpaddd %ymm2, %ymm0, %ymm0
 ; X64-NEXT:    vpaddd %ymm3, %ymm1, %ymm1
+; X64-NEXT:    vpaddd %ymm2, %ymm0, %ymm0
 ; X64-NEXT:    vpbroadcastd {{.*#+}} ymm2 = [112,112,112,112,112,112,112,112]
-; X64-NEXT:    vpaddd %ymm2, %ymm1, %ymm1
 ; X64-NEXT:    vpaddd %ymm2, %ymm0, %ymm0
-; X64-NEXT:    vmovd {{.*#+}} xmm2 = [65535,0,0,0,0,0,0,0]
-; X64-NEXT:    vpand %ymm2, %ymm0, %ymm0
+; X64-NEXT:    vpaddd %ymm2, %ymm1, %ymm1
 ; X64-NEXT:    vpand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %ymm1, %ymm1
+; X64-NEXT:    vpxor %xmm2, %xmm2, %xmm2
+; X64-NEXT:    vmovsh %xmm0, %xmm2, %xmm0
 ; X64-NEXT:    retq
 ;
 ; X86-LABEL: pr52561:
@@ -2113,11 +2113,11 @@ define <16 x i32> @pr52561(<16 x i32> %a, <16 x i32> %b) "min-legal-vector-width
 ; X86-NEXT:    vpaddd %ymm2, %ymm0, %ymm0
 ; X86-NEXT:    vpaddd 8(%ebp), %ymm1, %ymm1
 ; X86-NEXT:    vpbroadcastd {{.*#+}} ymm2 = [112,112,112,112,112,112,112,112]
-; X86-NEXT:    vpaddd %ymm2, %ymm1, %ymm1
 ; X86-NEXT:    vpaddd %ymm2, %ymm0, %ymm0
-; X86-NEXT:    vmovd {{.*#+}} xmm2 = [65535,0,0,0,0,0,0,0]
-; X86-NEXT:    vpand %ymm2, %ymm0, %ymm0
+; X86-NEXT:    vpaddd %ymm2, %ymm1, %ymm1
 ; X86-NEXT:    vpand {{\.?LCPI[0-9]+_[0-9]+}}, %ymm1, %ymm1
+; X86-NEXT:    vpxor %xmm2, %xmm2, %xmm2
+; X86-NEXT:    vmovsh %xmm0, %xmm2, %xmm0
 ; X86-NEXT:    movl %ebp, %esp
 ; X86-NEXT:    popl %ebp
 ; X86-NEXT:    retl
@@ -2139,9 +2139,9 @@ define <8 x i16> @pr59628_xmm(i16 %arg) {
 ; X86-LABEL: pr59628_xmm:
 ; X86:       # %bb.0:
 ; X86-NEXT:    movzwl {{[0-9]+}}(%esp), %eax
-; X86-NEXT:    vpxor %xmm0, %xmm0, %xmm0
+; X86-NEXT:    vxorps %xmm0, %xmm0, %xmm0
 ; X86-NEXT:    vpbroadcastw %eax, %xmm1
-; X86-NEXT:    vpblendw {{.*#+}} xmm0 = xmm1[0],xmm0[1,2,3,4,5,6,7]
+; X86-NEXT:    vmovsh %xmm1, %xmm0, %xmm0
 ; X86-NEXT:    vpcmpneqw {{\.?LCPI[0-9]+_[0-9]+}}, %xmm1, %k1
 ; X86-NEXT:    vmovdqu16 %xmm0, %xmm0 {%k1} {z}
 ; X86-NEXT:    retl