[llvm] [X86][FP16] Fix crash issue when AVX512VL is not set (PR #119309)

[Simon Pilgrim via llvm-commits]

================
@@ -413,9 +413,12 @@ define half @test_v2f16(<2 x half> %a0) nounwind {
 ; AVX512F:       # %bb.0:
 ; AVX512F-NEXT:    # kill: def $xmm0 killed $xmm0 def $zmm0
 ; AVX512F-NEXT:    vpsrld $16, %xmm0, %xmm1
-; AVX512F-NEXT:    vcvtph2ps %xmm0, %ymm2
-; AVX512F-NEXT:    vcvtph2ps %xmm1, %ymm3
-; AVX512F-NEXT:    vcmpltps %zmm2, %zmm3, %k1
+; AVX512F-NEXT:    vcvtph2ps %xmm0, %xmm2
+; AVX512F-NEXT:    vcvtph2ps %xmm1, %xmm3
+; AVX512F-NEXT:    vucomiss %xmm3, %xmm2
+; AVX512F-NEXT:    seta %al
+; AVX512F-NEXT:    negb %al
+; AVX512F-NEXT:    kmovd %eax, %k1
----------------
RKSimon wrote:

Annoying but not that important

https://github.com/llvm/llvm-project/pull/119309