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1; RUN: opt -S -passes=vector-combine < %s | FileCheck %s2 3target datalayout = "e-m:e-p:32:32-i1:32-i8:8-i16:16-i32:32-i64:64-f16:16-f32:32-f64:64-n8:16:32:64"4target triple = "dxil-unknown-shadermodel6.7-library"5 6; Make sure vec combine min vec size is 1 instead of 4 for float.7; CHECK:@foo()8; CHECK-NEXT:%[[LD:[0-9]+]] = load <1 x float>, ptr @a, align 89; CHECK-NEXT:%shuffle = shufflevector <1 x float> %[[LD]], <1 x float> poison, <2 x i32> zeroinitializer10; CHECK-NEXT:ret <2 x float> %shuffle11 12@a = external local_unnamed_addr constant float13 14; Function Attrs: mustprogress nofree norecurse nosync nounwind readnone willreturn15define noundef <2 x float> @foo() local_unnamed_addr {16 %1 = load float, ptr @a, align 817 %insert = insertelement <2 x float> poison, float %1, i64 018 %shuffle = shufflevector <2 x float> %insert, <2 x float> poison, <2 x i32> zeroinitializer19 ret <2 x float> %shuffle20}21