[llvm] [NVPTX] legalize v2i32 to improve compatibility with v2f32 (PR #153478)

[Princeton Ferro via llvm-commits]

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@@ -1938,16 +1938,29 @@ define <2 x i64> @test_fptoui_2xi64(<2 x float> %a) #0 {
 }
 
 define <2 x float> @test_uitofp_2xi32(<2 x i32> %a) #0 {
-; CHECK-LABEL: test_uitofp_2xi32(
-; CHECK:       {
-; CHECK-NEXT:    .reg .b32 %r<5>;
-; CHECK-EMPTY:
-; CHECK-NEXT:  // %bb.0:
-; CHECK-NEXT:    ld.param.v2.b32 {%r1, %r2}, [test_uitofp_2xi32_param_0];
-; CHECK-NEXT:    cvt.rn.f32.u32 %r3, %r2;
-; CHECK-NEXT:    cvt.rn.f32.u32 %r4, %r1;
-; CHECK-NEXT:    st.param.v2.b32 [func_retval0], {%r4, %r3};
-; CHECK-NEXT:    ret;
+; CHECK-NOF32X2-LABEL: test_uitofp_2xi32(
+; CHECK-NOF32X2:       {
+; CHECK-NOF32X2-NEXT:    .reg .b32 %r<5>;
+; CHECK-NOF32X2-EMPTY:
+; CHECK-NOF32X2-NEXT:  // %bb.0:
+; CHECK-NOF32X2-NEXT:    ld.param.v2.b32 {%r1, %r2}, [test_uitofp_2xi32_param_0];
+; CHECK-NOF32X2-NEXT:    cvt.rn.f32.u32 %r3, %r2;
+; CHECK-NOF32X2-NEXT:    cvt.rn.f32.u32 %r4, %r1;
+; CHECK-NOF32X2-NEXT:    st.param.v2.b32 [func_retval0], {%r4, %r3};
+; CHECK-NOF32X2-NEXT:    ret;
+;
+; CHECK-F32X2-LABEL: test_uitofp_2xi32(
+; CHECK-F32X2:       {
+; CHECK-F32X2-NEXT:    .reg .b32 %r<5>;
+; CHECK-F32X2-NEXT:    .reg .b64 %rd<2>;
+; CHECK-F32X2-EMPTY:
+; CHECK-F32X2-NEXT:  // %bb.0:
+; CHECK-F32X2-NEXT:    ld.param.b64 %rd1, [test_uitofp_2xi32_param_0];
+; CHECK-F32X2-NEXT:    mov.b64 {%r1, %r2}, %rd1;
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Prince781 wrote:

Since this issue has come up several times, I've added an `-O3` RUN for this test.

https://github.com/llvm/llvm-project/pull/153478