Index: llvm/lib/Target/X86/X86ISelLowering.cpp
===================================================================
--- llvm/lib/Target/X86/X86ISelLowering.cpp
+++ llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -1627,6 +1627,9 @@
     setOperationAction(ISD::FP_TO_UINT,         MVT::v8i32, Legal);
     setOperationAction(ISD::FP_TO_UINT,         MVT::v4i32, Legal);
     setOperationAction(ISD::FP_TO_UINT,         MVT::v2i32, Custom);
+    setOperationAction(ISD::STRICT_FP_TO_UINT,  MVT::v8i32, Legal);
+    setOperationAction(ISD::STRICT_FP_TO_UINT,  MVT::v4i32, Legal);
+    setOperationAction(ISD::STRICT_FP_TO_UINT,  MVT::v2i32, Custom);
     setOperationAction(ISD::UINT_TO_FP,         MVT::v8i32, Legal);
     setOperationAction(ISD::UINT_TO_FP,         MVT::v4i32, Legal);
 
Index: llvm/test/CodeGen/X86/vec-strict-fptoint-128.ll
===================================================================
--- llvm/test/CodeGen/X86/vec-strict-fptoint-128.ll
+++ llvm/test/CodeGen/X86/vec-strict-fptoint-128.ll
@@ -934,11 +934,7 @@
 ;
 ; AVX512VL-LABEL: strict_vector_fptoui_v2f64_to_v2i32:
 ; AVX512VL:       # %bb.0:
-; AVX512VL-NEXT:    vpermilpd {{.*#+}} xmm1 = xmm0[1,0]
-; AVX512VL-NEXT:    vcvttsd2usi %xmm1, %eax
-; AVX512VL-NEXT:    vcvttsd2usi %xmm0, %ecx
-; AVX512VL-NEXT:    vmovd %ecx, %xmm0
-; AVX512VL-NEXT:    vpinsrd $1, %eax, %xmm0, %xmm0
+; AVX512VL-NEXT:    vcvttpd2udq %xmm0, %xmm0
 ; AVX512VL-NEXT:    ret{{[l|q]}}
 ;
 ; AVX512DQ-LABEL: strict_vector_fptoui_v2f64_to_v2i32:
@@ -1758,21 +1754,11 @@
 ; AVX512VL-NEXT:    vmovdqa64 %xmm0, %xmm0 {%k1} {z}
 ; AVX512VL-NEXT:    ret{{[l|q]}}
 ;
+; FIXME: This is an unsafe behavior for strict FP
 ; AVX512DQ-LABEL: strict_vector_fptoui_v2f64_to_v2i1:
 ; AVX512DQ:       # %bb.0:
-; AVX512DQ-NEXT:    vcvttsd2usi %xmm0, %eax
-; AVX512DQ-NEXT:    vmovd %eax, %xmm1
-; AVX512DQ-NEXT:    vpinsrd $1, %eax, %xmm1, %xmm1
-; AVX512DQ-NEXT:    vpinsrd $2, %eax, %xmm1, %xmm1
-; AVX512DQ-NEXT:    vpinsrd $3, %eax, %xmm1, %xmm1
-; AVX512DQ-NEXT:    vpermilpd {{.*#+}} xmm2 = xmm0[1,0]
-; AVX512DQ-NEXT:    vcvttsd2usi %xmm2, %ecx
-; AVX512DQ-NEXT:    vcvttsd2usi %xmm0, %edx
-; AVX512DQ-NEXT:    vmovd %edx, %xmm0
-; AVX512DQ-NEXT:    vpinsrd $1, %ecx, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpinsrd $2, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vpinsrd $3, %eax, %xmm0, %xmm0
-; AVX512DQ-NEXT:    vinserti128 $1, %xmm1, %ymm0, %ymm0
+; AVX512DQ-NEXT:    # kill: def $xmm0 killed $xmm0 def $zmm0
+; AVX512DQ-NEXT:    vcvttpd2udq %zmm0, %ymm0
 ; AVX512DQ-NEXT:    vpslld $31, %ymm0, %ymm0
 ; AVX512DQ-NEXT:    vpmovd2m %zmm0, %k0
 ; AVX512DQ-NEXT:    vpmovm2q %k0, %zmm0
@@ -2281,32 +2267,16 @@
 ;
 ; AVX512VL-LABEL: strict_vector_fptoui_v4f32_to_v4i32:
 ; AVX512VL:       # %bb.0:
-; AVX512VL-NEXT:    vmovshdup {{.*#+}} xmm1 = xmm0[1,1,3,3]
-; AVX512VL-NEXT:    vcvttss2usi %xmm1, %eax
-; AVX512VL-NEXT:    vcvttss2usi %xmm0, %ecx
-; AVX512VL-NEXT:    vmovd %ecx, %xmm1
-; AVX512VL-NEXT:    vpinsrd $1, %eax, %xmm1, %xmm1
-; AVX512VL-NEXT:    vpermilpd {{.*#+}} xmm2 = xmm0[1,0]
-; AVX512VL-NEXT:    vcvttss2usi %xmm2, %eax
-; AVX512VL-NEXT:    vpinsrd $2, %eax, %xmm1, %xmm1
-; AVX512VL-NEXT:    vpermilps {{.*#+}} xmm0 = xmm0[3,1,2,3]
-; AVX512VL-NEXT:    vcvttss2usi %xmm0, %eax
-; AVX512VL-NEXT:    vpinsrd $3, %eax, %xmm1, %xmm0
+; AVX512VL-NEXT:    vcvttps2udq %xmm0, %xmm0
 ; AVX512VL-NEXT:    ret{{[l|q]}}
 ;
+; FIXME: This is an unsafe behavior for strict FP
 ; AVX512DQ-LABEL: strict_vector_fptoui_v4f32_to_v4i32:
 ; AVX512DQ:       # %bb.0:
-; AVX512DQ-NEXT:    vmovshdup {{.*#+}} xmm1 = xmm0[1,1,3,3]
-; AVX512DQ-NEXT:    vcvttss2usi %xmm1, %eax
-; AVX512DQ-NEXT:    vcvttss2usi %xmm0, %ecx
-; AVX512DQ-NEXT:    vmovd %ecx, %xmm1
-; AVX512DQ-NEXT:    vpinsrd $1, %eax, %xmm1, %xmm1
-; AVX512DQ-NEXT:    vpermilpd {{.*#+}} xmm2 = xmm0[1,0]
-; AVX512DQ-NEXT:    vcvttss2usi %xmm2, %eax
-; AVX512DQ-NEXT:    vpinsrd $2, %eax, %xmm1, %xmm1
-; AVX512DQ-NEXT:    vpermilps {{.*#+}} xmm0 = xmm0[3,1,2,3]
-; AVX512DQ-NEXT:    vcvttss2usi %xmm0, %eax
-; AVX512DQ-NEXT:    vpinsrd $3, %eax, %xmm1, %xmm0
+; AVX512DQ-NEXT:    # kill: def $xmm0 killed $xmm0 def $zmm0
+; AVX512DQ-NEXT:    vcvttps2udq %zmm0, %zmm0
+; AVX512DQ-NEXT:    # kill: def $xmm0 killed $xmm0 killed $zmm0
+; AVX512DQ-NEXT:    vzeroupper
 ; AVX512DQ-NEXT:    ret{{[l|q]}}
   %ret = call <4 x i32> @llvm.experimental.constrained.fptoui.v4i32.v4f32(<4 x float> %a,
                                               metadata !"fpexcept.strict")
Index: llvm/test/CodeGen/X86/vec-strict-fptoint-256.ll
===================================================================
--- llvm/test/CodeGen/X86/vec-strict-fptoint-256.ll
+++ llvm/test/CodeGen/X86/vec-strict-fptoint-256.ll
@@ -856,33 +856,16 @@
 ;
 ; AVX512VL-LABEL: strict_vector_fptoui_v4f64_to_v4i32:
 ; AVX512VL:       # %bb.0:
-; AVX512VL-NEXT:    vpermilpd {{.*#+}} xmm1 = xmm0[1,0]
-; AVX512VL-NEXT:    vcvttsd2usi %xmm1, %eax
-; AVX512VL-NEXT:    vcvttsd2usi %xmm0, %ecx
-; AVX512VL-NEXT:    vmovd %ecx, %xmm1
-; AVX512VL-NEXT:    vpinsrd $1, %eax, %xmm1, %xmm1
-; AVX512VL-NEXT:    vextractf128 $1, %ymm0, %xmm0
-; AVX512VL-NEXT:    vcvttsd2usi %xmm0, %eax
-; AVX512VL-NEXT:    vpinsrd $2, %eax, %xmm1, %xmm1
-; AVX512VL-NEXT:    vpermilpd {{.*#+}} xmm0 = xmm0[1,0]
-; AVX512VL-NEXT:    vcvttsd2usi %xmm0, %eax
-; AVX512VL-NEXT:    vpinsrd $3, %eax, %xmm1, %xmm0
+; AVX512VL-NEXT:    vcvttpd2udq %ymm0, %xmm0
 ; AVX512VL-NEXT:    vzeroupper
 ; AVX512VL-NEXT:    ret{{[l|q]}}
 ;
+; FIXME: This is an unsafe behavior for strict FP
 ; AVX512DQ-LABEL: strict_vector_fptoui_v4f64_to_v4i32:
 ; AVX512DQ:       # %bb.0:
-; AVX512DQ-NEXT:    vpermilpd {{.*#+}} xmm1 = xmm0[1,0]
-; AVX512DQ-NEXT:    vcvttsd2usi %xmm1, %eax
-; AVX512DQ-NEXT:    vcvttsd2usi %xmm0, %ecx
-; AVX512DQ-NEXT:    vmovd %ecx, %xmm1
-; AVX512DQ-NEXT:    vpinsrd $1, %eax, %xmm1, %xmm1
-; AVX512DQ-NEXT:    vextractf128 $1, %ymm0, %xmm0
-; AVX512DQ-NEXT:    vcvttsd2usi %xmm0, %eax
-; AVX512DQ-NEXT:    vpinsrd $2, %eax, %xmm1, %xmm1
-; AVX512DQ-NEXT:    vpermilpd {{.*#+}} xmm0 = xmm0[1,0]
-; AVX512DQ-NEXT:    vcvttsd2usi %xmm0, %eax
-; AVX512DQ-NEXT:    vpinsrd $3, %eax, %xmm1, %xmm0
+; AVX512DQ-NEXT:    # kill: def $ymm0 killed $ymm0 def $zmm0
+; AVX512DQ-NEXT:    vcvttpd2udq %zmm0, %ymm0
+; AVX512DQ-NEXT:    # kill: def $xmm0 killed $xmm0 killed $ymm0
 ; AVX512DQ-NEXT:    vzeroupper
 ; AVX512DQ-NEXT:    ret{{[l|q]}}
   %ret = call <4 x i32> @llvm.experimental.constrained.fptoui.v4i32.v4f64(<4 x double> %a,
@@ -1099,58 +1082,15 @@
 ;
 ; AVX512VL-LABEL: strict_vector_fptoui_v8f32_to_v8i32:
 ; AVX512VL:       # %bb.0:
-; AVX512VL-NEXT:    vextractf128 $1, %ymm0, %xmm1
-; AVX512VL-NEXT:    vmovshdup {{.*#+}} xmm2 = xmm1[1,1,3,3]
-; AVX512VL-NEXT:    vcvttss2usi %xmm2, %eax
-; AVX512VL-NEXT:    vcvttss2usi %xmm1, %ecx
-; AVX512VL-NEXT:    vmovd %ecx, %xmm2
-; AVX512VL-NEXT:    vpinsrd $1, %eax, %xmm2, %xmm2
-; AVX512VL-NEXT:    vpermilpd {{.*#+}} xmm3 = xmm1[1,0]
-; AVX512VL-NEXT:    vcvttss2usi %xmm3, %eax
-; AVX512VL-NEXT:    vpinsrd $2, %eax, %xmm2, %xmm2
-; AVX512VL-NEXT:    vpermilps {{.*#+}} xmm1 = xmm1[3,1,2,3]
-; AVX512VL-NEXT:    vcvttss2usi %xmm1, %eax
-; AVX512VL-NEXT:    vpinsrd $3, %eax, %xmm2, %xmm1
-; AVX512VL-NEXT:    vmovshdup {{.*#+}} xmm2 = xmm0[1,1,3,3]
-; AVX512VL-NEXT:    vcvttss2usi %xmm2, %eax
-; AVX512VL-NEXT:    vcvttss2usi %xmm0, %ecx
-; AVX512VL-NEXT:    vmovd %ecx, %xmm2
-; AVX512VL-NEXT:    vpinsrd $1, %eax, %xmm2, %xmm2
-; AVX512VL-NEXT:    vpermilpd {{.*#+}} xmm3 = xmm0[1,0]
-; AVX512VL-NEXT:    vcvttss2usi %xmm3, %eax
-; AVX512VL-NEXT:    vpinsrd $2, %eax, %xmm2, %xmm2
-; AVX512VL-NEXT:    vpermilps {{.*#+}} xmm0 = xmm0[3,1,2,3]
-; AVX512VL-NEXT:    vcvttss2usi %xmm0, %eax
-; AVX512VL-NEXT:    vpinsrd $3, %eax, %xmm2, %xmm0
-; AVX512VL-NEXT:    vinserti128 $1, %xmm1, %ymm0, %ymm0
+; AVX512VL-NEXT:    vcvttps2udq %ymm0, %ymm0
 ; AVX512VL-NEXT:    ret{{[l|q]}}
 ;
+; FIXME: This is an unsafe behavior for strict FP
 ; AVX512DQ-LABEL: strict_vector_fptoui_v8f32_to_v8i32:
 ; AVX512DQ:       # %bb.0:
-; AVX512DQ-NEXT:    vextractf128 $1, %ymm0, %xmm1
-; AVX512DQ-NEXT:    vmovshdup {{.*#+}} xmm2 = xmm1[1,1,3,3]
-; AVX512DQ-NEXT:    vcvttss2usi %xmm2, %eax
-; AVX512DQ-NEXT:    vcvttss2usi %xmm1, %ecx
-; AVX512DQ-NEXT:    vmovd %ecx, %xmm2
-; AVX512DQ-NEXT:    vpinsrd $1, %eax, %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpermilpd {{.*#+}} xmm3 = xmm1[1,0]
-; AVX512DQ-NEXT:    vcvttss2usi %xmm3, %eax
-; AVX512DQ-NEXT:    vpinsrd $2, %eax, %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpermilps {{.*#+}} xmm1 = xmm1[3,1,2,3]
-; AVX512DQ-NEXT:    vcvttss2usi %xmm1, %eax
-; AVX512DQ-NEXT:    vpinsrd $3, %eax, %xmm2, %xmm1
-; AVX512DQ-NEXT:    vmovshdup {{.*#+}} xmm2 = xmm0[1,1,3,3]
-; AVX512DQ-NEXT:    vcvttss2usi %xmm2, %eax
-; AVX512DQ-NEXT:    vcvttss2usi %xmm0, %ecx
-; AVX512DQ-NEXT:    vmovd %ecx, %xmm2
-; AVX512DQ-NEXT:    vpinsrd $1, %eax, %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpermilpd {{.*#+}} xmm3 = xmm0[1,0]
-; AVX512DQ-NEXT:    vcvttss2usi %xmm3, %eax
-; AVX512DQ-NEXT:    vpinsrd $2, %eax, %xmm2, %xmm2
-; AVX512DQ-NEXT:    vpermilps {{.*#+}} xmm0 = xmm0[3,1,2,3]
-; AVX512DQ-NEXT:    vcvttss2usi %xmm0, %eax
-; AVX512DQ-NEXT:    vpinsrd $3, %eax, %xmm2, %xmm0
-; AVX512DQ-NEXT:    vinserti128 $1, %xmm1, %ymm0, %ymm0
+; AVX512DQ-NEXT:    # kill: def $ymm0 killed $ymm0 def $zmm0
+; AVX512DQ-NEXT:    vcvttps2udq %zmm0, %zmm0
+; AVX512DQ-NEXT:    # kill: def $ymm0 killed $ymm0 killed $zmm0
 ; AVX512DQ-NEXT:    ret{{[l|q]}}
   %ret = call <8 x i32> @llvm.experimental.constrained.fptoui.v8i32.v8f32(<8 x float> %a,
                                               metadata !"fpexcept.strict")
Index: llvm/test/CodeGen/X86/vec-strict-fptoint-512.ll
===================================================================
--- llvm/test/CodeGen/X86/vec-strict-fptoint-512.ll
+++ llvm/test/CodeGen/X86/vec-strict-fptoint-512.ll
@@ -651,30 +651,7 @@
 define <8 x i32> @strict_vector_fptoui_v8f64_to_v8i32(<8 x double> %a) #0 {
 ; CHECK-LABEL: strict_vector_fptoui_v8f64_to_v8i32:
 ; CHECK:       # %bb.0:
-; CHECK-NEXT:    vextractf32x4 $2, %zmm0, %xmm1
-; CHECK-NEXT:    vpermilpd {{.*#+}} xmm2 = xmm1[1,0]
-; CHECK-NEXT:    vcvttsd2usi %xmm2, %eax
-; CHECK-NEXT:    vcvttsd2usi %xmm1, %ecx
-; CHECK-NEXT:    vmovd %ecx, %xmm1
-; CHECK-NEXT:    vpinsrd $1, %eax, %xmm1, %xmm1
-; CHECK-NEXT:    vextractf32x4 $3, %zmm0, %xmm2
-; CHECK-NEXT:    vcvttsd2usi %xmm2, %eax
-; CHECK-NEXT:    vpinsrd $2, %eax, %xmm1, %xmm1
-; CHECK-NEXT:    vpermilpd {{.*#+}} xmm2 = xmm2[1,0]
-; CHECK-NEXT:    vcvttsd2usi %xmm2, %eax
-; CHECK-NEXT:    vpinsrd $3, %eax, %xmm1, %xmm1
-; CHECK-NEXT:    vpermilpd {{.*#+}} xmm2 = xmm0[1,0]
-; CHECK-NEXT:    vcvttsd2usi %xmm2, %eax
-; CHECK-NEXT:    vcvttsd2usi %xmm0, %ecx
-; CHECK-NEXT:    vmovd %ecx, %xmm2
-; CHECK-NEXT:    vpinsrd $1, %eax, %xmm2, %xmm2
-; CHECK-NEXT:    vextractf128 $1, %ymm0, %xmm0
-; CHECK-NEXT:    vcvttsd2usi %xmm0, %eax
-; CHECK-NEXT:    vpinsrd $2, %eax, %xmm2, %xmm2
-; CHECK-NEXT:    vpermilpd {{.*#+}} xmm0 = xmm0[1,0]
-; CHECK-NEXT:    vcvttsd2usi %xmm0, %eax
-; CHECK-NEXT:    vpinsrd $3, %eax, %xmm2, %xmm0
-; CHECK-NEXT:    vinserti128 $1, %xmm1, %ymm0, %ymm0
+; CHECK-NEXT:    vcvttpd2udq %zmm0, %ymm0
 ; CHECK-NEXT:    ret{{[l|q]}}
   %ret = call <8 x i32> @llvm.experimental.constrained.fptoui.v8i32.v8f64(<8 x double> %a,
                                               metadata !"fpexcept.strict")
Index: llvm/test/CodeGen/X86/vector-constrained-fp-intrinsics.ll
===================================================================
--- llvm/test/CodeGen/X86/vector-constrained-fp-intrinsics.ll
+++ llvm/test/CodeGen/X86/vector-constrained-fp-intrinsics.ll
@@ -4445,14 +4445,10 @@
 ;
 ; AVX512-LABEL: constrained_vector_fptoui_v4i32_v4f32:
 ; AVX512:       # %bb.0: # %entry
-; AVX512-NEXT:    vcvttss2usi {{.*}}(%rip), %eax
-; AVX512-NEXT:    vmovd %eax, %xmm0
-; AVX512-NEXT:    vcvttss2usi {{.*}}(%rip), %eax
-; AVX512-NEXT:    vpinsrd $1, %eax, %xmm0, %xmm0
-; AVX512-NEXT:    vcvttss2usi {{.*}}(%rip), %eax
-; AVX512-NEXT:    vpinsrd $2, %eax, %xmm0, %xmm0
-; AVX512-NEXT:    vcvttss2usi {{.*}}(%rip), %eax
-; AVX512-NEXT:    vpinsrd $3, %eax, %xmm0, %xmm0
+; AVX512-NEXT:    vmovaps {{.*#+}} xmm0 = [4.2E+1,4.3E+1,4.4E+1,4.5E+1]
+; AVX512-NEXT:    vcvttps2udq %zmm0, %zmm0
+; AVX512-NEXT:    # kill: def $xmm0 killed $xmm0 killed $zmm0
+; AVX512-NEXT:    vzeroupper
 ; AVX512-NEXT:    retq
 entry:
   %result = call <4 x i32> @llvm.experimental.constrained.fptoui.v4i32.v4f32(
@@ -4990,14 +4986,10 @@
 ;
 ; AVX512-LABEL: constrained_vector_fptoui_v4i32_v4f64:
 ; AVX512:       # %bb.0: # %entry
-; AVX512-NEXT:    vcvttsd2usi {{.*}}(%rip), %eax
-; AVX512-NEXT:    vmovd %eax, %xmm0
-; AVX512-NEXT:    vcvttsd2usi {{.*}}(%rip), %eax
-; AVX512-NEXT:    vpinsrd $1, %eax, %xmm0, %xmm0
-; AVX512-NEXT:    vcvttsd2usi {{.*}}(%rip), %eax
-; AVX512-NEXT:    vpinsrd $2, %eax, %xmm0, %xmm0
-; AVX512-NEXT:    vcvttsd2usi {{.*}}(%rip), %eax
-; AVX512-NEXT:    vpinsrd $3, %eax, %xmm0, %xmm0
+; AVX512-NEXT:    vmovaps {{.*#+}} ymm0 = [4.2100000000000001E+1,4.2200000000000003E+1,4.2299999999999997E+1,4.2399999999999999E+1]
+; AVX512-NEXT:    vcvttpd2udq %zmm0, %ymm0
+; AVX512-NEXT:    # kill: def $xmm0 killed $xmm0 killed $ymm0
+; AVX512-NEXT:    vzeroupper
 ; AVX512-NEXT:    retq
 entry:
   %result = call <4 x i32> @llvm.experimental.constrained.fptoui.v4i32.v4f64(