[llvm] [X86] lowerFPToIntToFP - handle UI2FP on AVX512VL targets and i64 types on AVX512DQ targets (PR #162656)

[Simon Pilgrim via llvm-commits]

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@@ -10,10 +10,8 @@ declare i64 @llvm.fptosi.sat.i64.f64(double)
 define float @trunc_unsigned_f32(float %x) #0 {
 ; SSE2-LABEL: trunc_unsigned_f32:
 ; SSE2:       # %bb.0:
-; SSE2-NEXT:    cvttss2si %xmm0, %rax
-; SSE2-NEXT:    movl %eax, %eax
-; SSE2-NEXT:    xorps %xmm0, %xmm0
-; SSE2-NEXT:    cvtsi2ss %rax, %xmm0
+; SSE2-NEXT:    cvttps2dq %xmm0, %xmm0
+; SSE2-NEXT:    cvtdq2ps %xmm0, %xmm0
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RKSimon wrote:

suspicious?

https://github.com/llvm/llvm-project/pull/162656