; LLVM IR from sp-nitech/SPTK :: src/conversion (linear_predictive_coefficients_to_parcor_coefficients)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.__gnu_cxx::__normal_iterator.0" = type { ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%class.anon = type { double }
%"class.sptk::LinearPredictiveCoefficientsToParcorCoefficients" = type <{ ptr, i32, [4 x i8], double, i8, [7 x i8] }>
%"class.sptk::LinearPredictiveCoefficientsToParcorCoefficients::Buffer" = type { ptr, %"class.std::vector" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl" }
%"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl" = type { %"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl_data" }
%"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl_data" = type { ptr, ptr, ptr }

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZNK4sptk48LinearPredictiveCoefficientsToParcorCoefficients3RunERKSt6vectorIdSaIdEEPS3_PbPNS0_6BufferE(ptr noundef nonnull align 8 dereferenceable(25) %0, ptr noundef nonnull align 8 dereferenceable(24) %1, ptr noundef %2, ptr noundef %3, ptr noundef %4) #0 align 2 {
  %6 = alloca i1, align 1
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %15 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %16 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %17 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %18 = alloca double, align 8
  %19 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %20 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %21 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %22 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %23 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %24 = alloca %class.anon, align 8
  %25 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %26 = alloca ptr, align 8
  %27 = alloca ptr, align 8
  %28 = alloca i32, align 4
  %29 = alloca i32, align 4
  %30 = alloca double, align 8
  %31 = alloca i32, align 4
  store ptr %0, ptr %7, align 8, !tbaa !5
  store ptr %1, ptr %8, align 8, !tbaa !5
  store ptr %2, ptr %9, align 8, !tbaa !5
  store ptr %3, ptr %10, align 8, !tbaa !5
  store ptr %4, ptr %11, align 8, !tbaa !5
  %32 = load ptr, ptr %7, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #5
  %33 = getelementptr inbounds %"class.sptk::LinearPredictiveCoefficientsToParcorCoefficients", ptr %32, i32 0, i32 1
  %34 = load i32, ptr %33, align 8, !tbaa !9
  %35 = add nsw i32 %34, 1
  store i32 %35, ptr %12, align 4, !tbaa !14
  %36 = getelementptr inbounds %"class.sptk::LinearPredictiveCoefficientsToParcorCoefficients", ptr %32, i32 0, i32 4
  %37 = load i8, ptr %36, align 8, !tbaa !15, !range !16, !noundef !17
  %38 = trunc i8 %37 to i1
  br i1 %38, label %39, label %54

39:                                               ; preds = %5
  %40 = load ptr, ptr %8, align 8, !tbaa !5
  %41 = call noundef i64 @_ZNKSt6vectorIdSaIdEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %40) #5
  %42 = load i32, ptr %12, align 4, !tbaa !14
  %43 = sext i32 %42 to i64
  %44 = icmp ne i64 %41, %43
  br i1 %44, label %54, label %45

45:                                               ; preds = %39
  %46 = load ptr, ptr %9, align 8, !tbaa !5
  %47 = icmp eq ptr null, %46
  br i1 %47, label %54, label %48

48:                                               ; preds = %45
  %49 = load ptr, ptr %10, align 8, !tbaa !5
  %50 = icmp eq ptr null, %49
  br i1 %50, label %54, label %51

51:                                               ; preds = %48
  %52 = load ptr, ptr %11, align 8, !tbaa !5
  %53 = icmp eq ptr null, %52
  br i1 %53, label %54, label %55

54:                                               ; preds = %51, %48, %45, %39, %5
  store i1 false, ptr %6, align 1
  store i32 1, ptr %13, align 4
  br label %243

55:                                               ; preds = %51
  %56 = load ptr, ptr %9, align 8, !tbaa !5
  %57 = call noundef i64 @_ZNKSt6vectorIdSaIdEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %56) #5
  %58 = load i32, ptr %12, align 4, !tbaa !14
  %59 = sext i32 %58 to i64
  %60 = icmp ne i64 %57, %59
  br i1 %60, label %61, label %65

61:                                               ; preds = %55
  %62 = load ptr, ptr %9, align 8, !tbaa !5
  %63 = load i32, ptr %12, align 4, !tbaa !14
  %64 = sext i32 %63 to i64
  call void @_ZNSt6vectorIdSaIdEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) %62, i64 noundef %64)
  br label %65

65:                                               ; preds = %61, %55
  %66 = load ptr, ptr %11, align 8, !tbaa !5
  %67 = getelementptr inbounds %"class.sptk::LinearPredictiveCoefficientsToParcorCoefficients::Buffer", ptr %66, i32 0, i32 1
  %68 = call noundef i64 @_ZNKSt6vectorIdSaIdEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %67) #5
  %69 = load i32, ptr %12, align 4, !tbaa !14
  %70 = sext i32 %69 to i64
  %71 = icmp ne i64 %68, %70
  br i1 %71, label %72, label %77

72:                                               ; preds = %65
  %73 = load ptr, ptr %11, align 8, !tbaa !5
  %74 = getelementptr inbounds %"class.sptk::LinearPredictiveCoefficientsToParcorCoefficients::Buffer", ptr %73, i32 0, i32 1
  %75 = load i32, ptr %12, align 4, !tbaa !14
  %76 = sext i32 %75 to i64
  call void @_ZNSt6vectorIdSaIdEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) %74, i64 noundef %76)
  br label %77

77:                                               ; preds = %72, %65
  %78 = load ptr, ptr %10, align 8, !tbaa !5
  store i8 1, ptr %78, align 1, !tbaa !18
  %79 = load ptr, ptr %8, align 8, !tbaa !5
  %80 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %79, i64 noundef 0) #5
  %81 = load double, ptr %80, align 8, !tbaa !19
  %82 = load ptr, ptr %9, align 8, !tbaa !5
  %83 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %82, i64 noundef 0) #5
  store double %81, ptr %83, align 8, !tbaa !19
  %84 = getelementptr inbounds %"class.sptk::LinearPredictiveCoefficientsToParcorCoefficients", ptr %32, i32 0, i32 1
  %85 = load i32, ptr %84, align 8, !tbaa !9
  %86 = icmp eq i32 0, %85
  br i1 %86, label %87, label %88

87:                                               ; preds = %77
  store i1 true, ptr %6, align 1
  store i32 1, ptr %13, align 4
  br label %243

88:                                               ; preds = %77
  %89 = getelementptr inbounds %"class.sptk::LinearPredictiveCoefficientsToParcorCoefficients", ptr %32, i32 0, i32 3
  %90 = load double, ptr %89, align 8, !tbaa !20
  %91 = fcmp oeq double 1.000000e+00, %90
  br i1 %91, label %92, label %111

92:                                               ; preds = %88
  %93 = load ptr, ptr %8, align 8, !tbaa !5
  %94 = call ptr @_ZNKSt6vectorIdSaIdEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %93) #5
  %95 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.0", ptr %14, i32 0, i32 0
  store ptr %94, ptr %95, align 8
  %96 = load ptr, ptr %8, align 8, !tbaa !5
  %97 = call ptr @_ZNKSt6vectorIdSaIdEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %96) #5
  %98 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.0", ptr %15, i32 0, i32 0
  store ptr %97, ptr %98, align 8
  %99 = load ptr, ptr %11, align 8, !tbaa !5
  %100 = getelementptr inbounds %"class.sptk::LinearPredictiveCoefficientsToParcorCoefficients::Buffer", ptr %99, i32 0, i32 1
  %101 = call ptr @_ZNSt6vectorIdSaIdEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %100) #5
  %102 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %16, i32 0, i32 0
  store ptr %101, ptr %102, align 8
  %103 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.0", ptr %14, i32 0, i32 0
  %104 = load ptr, ptr %103, align 8
  %105 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.0", ptr %15, i32 0, i32 0
  %106 = load ptr, ptr %105, align 8
  %107 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %16, i32 0, i32 0
  %108 = load ptr, ptr %107, align 8
  %109 = call ptr @_ZSt4copyIN9__gnu_cxx17__normal_iteratorIPKdSt6vectorIdSaIdEEEENS1_IPdS6_EEET0_T_SB_SA_(ptr %104, ptr %106, ptr %108)
  %110 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %17, i32 0, i32 0
  store ptr %109, ptr %110, align 8
  br label %140

111:                                              ; preds = %88
  call void @llvm.lifetime.start.p0(i64 8, ptr %18) #5
  %112 = getelementptr inbounds %"class.sptk::LinearPredictiveCoefficientsToParcorCoefficients", ptr %32, i32 0, i32 3
  %113 = load double, ptr %112, align 8, !tbaa !20
  store double %113, ptr %18, align 8, !tbaa !19
  call void @llvm.lifetime.start.p0(i64 8, ptr %20) #5
  %114 = load ptr, ptr %8, align 8, !tbaa !5
  %115 = call ptr @_ZNKSt6vectorIdSaIdEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %114) #5
  %116 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.0", ptr %20, i32 0, i32 0
  store ptr %115, ptr %116, align 8
  %117 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKdSt6vectorIdSaIdEEEplEl(ptr noundef nonnull align 8 dereferenceable(8) %20, i64 noundef 1) #5
  %118 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.0", ptr %19, i32 0, i32 0
  store ptr %117, ptr %118, align 8
  %119 = load ptr, ptr %8, align 8, !tbaa !5
  %120 = call ptr @_ZNKSt6vectorIdSaIdEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %119) #5
  %121 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.0", ptr %21, i32 0, i32 0
  store ptr %120, ptr %121, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %23) #5
  %122 = load ptr, ptr %11, align 8, !tbaa !5
  %123 = getelementptr inbounds %"class.sptk::LinearPredictiveCoefficientsToParcorCoefficients::Buffer", ptr %122, i32 0, i32 1
  %124 = call ptr @_ZNSt6vectorIdSaIdEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %123) #5
  %125 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %23, i32 0, i32 0
  store ptr %124, ptr %125, align 8
  %126 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPdSt6vectorIdSaIdEEEplEl(ptr noundef nonnull align 8 dereferenceable(8) %23, i64 noundef 1) #5
  %127 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %22, i32 0, i32 0
  store ptr %126, ptr %127, align 8
  %128 = getelementptr inbounds %class.anon, ptr %24, i32 0, i32 0
  %129 = load double, ptr %18, align 8, !tbaa !19
  store double %129, ptr %128, align 8, !tbaa !21
  %130 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.0", ptr %19, i32 0, i32 0
  %131 = load ptr, ptr %130, align 8
  %132 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator.0", ptr %21, i32 0, i32 0
  %133 = load ptr, ptr %132, align 8
  %134 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %22, i32 0, i32 0
  %135 = load ptr, ptr %134, align 8
  %136 = getelementptr inbounds %class.anon, ptr %24, i32 0, i32 0
  %137 = load double, ptr %136, align 8
  %138 = call ptr @"_ZSt9transformIN9__gnu_cxx17__normal_iteratorIPKdSt6vectorIdSaIdEEEENS1_IPdS6_EEZNK4sptk48LinearPredictiveCoefficientsToParcorCoefficients3RunERKS6_PS6_PbPNSB_6BufferEE3$_0ET0_T_SK_SJ_T1_"(ptr %131, ptr %133, ptr %135, double %137)
  %139 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %25, i32 0, i32 0
  store ptr %138, ptr %139, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %23) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %20) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #5
  br label %140

140:                                              ; preds = %111, %92
  call void @llvm.lifetime.start.p0(i64 8, ptr %26) #5
  %141 = load ptr, ptr %11, align 8, !tbaa !5
  %142 = getelementptr inbounds %"class.sptk::LinearPredictiveCoefficientsToParcorCoefficients::Buffer", ptr %141, i32 0, i32 1
  %143 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %142, i64 noundef 0) #5
  store ptr %143, ptr %26, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %27) #5
  %144 = load ptr, ptr %9, align 8, !tbaa !5
  %145 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %144, i64 noundef 0) #5
  store ptr %145, ptr %27, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %28) #5
  %146 = getelementptr inbounds %"class.sptk::LinearPredictiveCoefficientsToParcorCoefficients", ptr %32, i32 0, i32 1
  %147 = load i32, ptr %146, align 8, !tbaa !9
  store i32 %147, ptr %28, align 4, !tbaa !14
  br label %148

148:                                              ; preds = %236, %140
  %149 = load i32, ptr %28, align 4, !tbaa !14
  %150 = icmp sle i32 1, %149
  br i1 %150, label %152, label %151

151:                                              ; preds = %148
  store i32 2, ptr %13, align 4
  br label %239

152:                                              ; preds = %148
  call void @llvm.lifetime.start.p0(i64 4, ptr %29) #5
  store i32 1, ptr %29, align 4, !tbaa !14
  br label %153

153:                                              ; preds = %168, %152
  %154 = load i32, ptr %29, align 4, !tbaa !14
  %155 = load i32, ptr %28, align 4, !tbaa !14
  %156 = icmp sle i32 %154, %155
  br i1 %156, label %158, label %157

157:                                              ; preds = %153
  store i32 5, ptr %13, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %29) #5
  br label %171

158:                                              ; preds = %153
  %159 = load ptr, ptr %26, align 8, !tbaa !5
  %160 = load i32, ptr %29, align 4, !tbaa !14
  %161 = sext i32 %160 to i64
  %162 = getelementptr inbounds double, ptr %159, i64 %161
  %163 = load double, ptr %162, align 8, !tbaa !19
  %164 = load ptr, ptr %27, align 8, !tbaa !5
  %165 = load i32, ptr %29, align 4, !tbaa !14
  %166 = sext i32 %165 to i64
  %167 = getelementptr inbounds double, ptr %164, i64 %166
  store double %163, ptr %167, align 8, !tbaa !19
  br label %168

168:                                              ; preds = %158
  %169 = load i32, ptr %29, align 4, !tbaa !14
  %170 = add nsw i32 %169, 1
  store i32 %170, ptr %29, align 4, !tbaa !14
  br label %153, !llvm.loop !23

171:                                              ; preds = %157
  call void @llvm.lifetime.start.p0(i64 8, ptr %30) #5
  %172 = load ptr, ptr %27, align 8, !tbaa !5
  %173 = load i32, ptr %28, align 4, !tbaa !14
  %174 = sext i32 %173 to i64
  %175 = getelementptr inbounds double, ptr %172, i64 %174
  %176 = load double, ptr %175, align 8, !tbaa !19
  %177 = load ptr, ptr %27, align 8, !tbaa !5
  %178 = load i32, ptr %28, align 4, !tbaa !14
  %179 = sext i32 %178 to i64
  %180 = getelementptr inbounds double, ptr %177, i64 %179
  %181 = load double, ptr %180, align 8, !tbaa !19
  %182 = fneg double %176
  %183 = call double @llvm.fmuladd.f64(double %182, double %181, double 1.000000e+00)
  store double %183, ptr %30, align 8, !tbaa !19
  %184 = load double, ptr %30, align 8, !tbaa !19
  %185 = fcmp oeq double 0.000000e+00, %184
  br i1 %185, label %186, label %187

186:                                              ; preds = %171
  store i1 false, ptr %6, align 1
  store i32 1, ptr %13, align 4
  br label %233

187:                                              ; preds = %171
  %188 = load ptr, ptr %27, align 8, !tbaa !5
  %189 = load i32, ptr %28, align 4, !tbaa !14
  %190 = sext i32 %189 to i64
  %191 = getelementptr inbounds double, ptr %188, i64 %190
  %192 = load double, ptr %191, align 8, !tbaa !19
  %193 = call double @llvm.fabs.f64(double %192)
  %194 = fcmp ole double 1.000000e+00, %193
  br i1 %194, label %195, label %197

195:                                              ; preds = %187
  %196 = load ptr, ptr %10, align 8, !tbaa !5
  store i8 0, ptr %196, align 1, !tbaa !18
  br label %197

197:                                              ; preds = %195, %187
  call void @llvm.lifetime.start.p0(i64 4, ptr %31) #5
  store i32 1, ptr %31, align 4, !tbaa !14
  br label %198

198:                                              ; preds = %229, %197
  %199 = load i32, ptr %31, align 4, !tbaa !14
  %200 = load i32, ptr %28, align 4, !tbaa !14
  %201 = icmp slt i32 %199, %200
  br i1 %201, label %203, label %202

202:                                              ; preds = %198
  store i32 8, ptr %13, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %31) #5
  br label %232

203:                                              ; preds = %198
  %204 = load ptr, ptr %27, align 8, !tbaa !5
  %205 = load i32, ptr %31, align 4, !tbaa !14
  %206 = sext i32 %205 to i64
  %207 = getelementptr inbounds double, ptr %204, i64 %206
  %208 = load double, ptr %207, align 8, !tbaa !19
  %209 = load ptr, ptr %27, align 8, !tbaa !5
  %210 = load i32, ptr %28, align 4, !tbaa !14
  %211 = sext i32 %210 to i64
  %212 = getelementptr inbounds double, ptr %209, i64 %211
  %213 = load double, ptr %212, align 8, !tbaa !19
  %214 = load ptr, ptr %27, align 8, !tbaa !5
  %215 = load i32, ptr %28, align 4, !tbaa !14
  %216 = load i32, ptr %31, align 4, !tbaa !14
  %217 = sub nsw i32 %215, %216
  %218 = sext i32 %217 to i64
  %219 = getelementptr inbounds double, ptr %214, i64 %218
  %220 = load double, ptr %219, align 8, !tbaa !19
  %221 = fneg double %213
  %222 = call double @llvm.fmuladd.f64(double %221, double %220, double %208)
  %223 = load double, ptr %30, align 8, !tbaa !19
  %224 = fdiv double %222, %223
  %225 = load ptr, ptr %26, align 8, !tbaa !5
  %226 = load i32, ptr %31, align 4, !tbaa !14
  %227 = sext i32 %226 to i64
  %228 = getelementptr inbounds double, ptr %225, i64 %227
  store double %224, ptr %228, align 8, !tbaa !19
  br label %229

229:                                              ; preds = %203
  %230 = load i32, ptr %31, align 4, !tbaa !14
  %231 = add nsw i32 %230, 1
  store i32 %231, ptr %31, align 4, !tbaa !14
  br label %198, !llvm.loop !25

232:                                              ; preds = %202
  store i32 0, ptr %13, align 4
  br label %233

233:                                              ; preds = %232, %186
  call void @llvm.lifetime.end.p0(i64 8, ptr %30) #5
  %234 = load i32, ptr %13, align 4
  switch i32 %234, label %239 [
    i32 0, label %235
  ]

235:                                              ; preds = %233
  br label %236

236:                                              ; preds = %235
  %237 = load i32, ptr %28, align 4, !tbaa !14
  %238 = add nsw i32 %237, -1
  store i32 %238, ptr %28, align 4, !tbaa !14
  br label %148, !llvm.loop !26

239:                                              ; preds = %233, %151
  call void @llvm.lifetime.end.p0(i64 4, ptr %28) #5
  %240 = load i32, ptr %13, align 4
  switch i32 %240, label %242 [
    i32 2, label %241
  ]

241:                                              ; preds = %239
  store i1 true, ptr %6, align 1
  store i32 1, ptr %13, align 4
  br label %242

242:                                              ; preds = %241, %239
  call void @llvm.lifetime.end.p0(i64 8, ptr %27) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %26) #5
  br label %243

243:                                              ; preds = %242, %87, %54
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #5
  %244 = load i1, ptr %6, align 1
  ret i1 %244
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIdSaIdEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIdSaIdEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt4copyIN9__gnu_cxx17__normal_iteratorIPKdSt6vectorIdSaIdEEEENS1_IPdS6_EEET0_T_SB_SA_(ptr, ptr, ptr) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorIdSaIdEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorIdSaIdEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIdSaIdEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress uwtable
declare hidden ptr @"_ZSt9transformIN9__gnu_cxx17__normal_iteratorIPKdSt6vectorIdSaIdEEEENS1_IPdS6_EEZNK4sptk48LinearPredictiveCoefficientsToParcorCoefficients3RunERKS6_PS6_PbPNSB_6BufferEE3$_0ET0_T_SK_SJ_T1_"(ptr, ptr, ptr, double) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKdSt6vectorIdSaIdEEEplEl(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNK9__gnu_cxx17__normal_iteratorIPdSt6vectorIdSaIdEEEplEl(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #2 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #4

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fabs.f64(double) #4

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #5 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !11, i64 8}
!10 = !{!"_ZTSN4sptk48LinearPredictiveCoefficientsToParcorCoefficientsE", !11, i64 8, !12, i64 16, !13, i64 24}
!11 = !{!"int", !7, i64 0}
!12 = !{!"double", !7, i64 0}
!13 = !{!"bool", !7, i64 0}
!14 = !{!11, !11, i64 0}
!15 = !{!10, !13, i64 24}
!16 = !{i8 0, i8 2}
!17 = !{}
!18 = !{!13, !13, i64 0}
!19 = !{!12, !12, i64 0}
!20 = !{!10, !12, i64 16}
!21 = !{!22, !12, i64 0}
!22 = !{!"_ZTSZNK4sptk48LinearPredictiveCoefficientsToParcorCoefficients3RunERKSt6vectorIdSaIdEEPS3_PbPNS0_6BufferEE3$_0", !12, i64 0}
!23 = distinct !{!23, !24}
!24 = !{!"llvm.loop.mustprogress"}
!25 = distinct !{!25, !24}
!26 = distinct !{!26, !24}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.__gnu_cxx::__normal_iterator.0" = type { ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZNK4sptk48LinearPredictiveCoefficientsToParcorCoefficients3RunERKSt6vectorIdSaIdEEPS3_PbPNS0_6BufferE(ptr nocapture noundef nonnull readonly align 8 dereferenceable(25) %0, ptr noundef nonnull align 8 dereferenceable(24) %1, ptr noundef %2, ptr noundef writeonly %3, ptr noundef %4) local_unnamed_addr #0 align 2 {
  %6 = alloca %"class.__gnu_cxx::__normal_iterator.0", align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = getelementptr inbounds i8, ptr %0, i64 8
  %9 = getelementptr inbounds i8, ptr %0, i64 24
  %10 = load i8, ptr %9, align 8, !tbaa !5, !range !12, !noundef !13
  %11 = trunc nuw i8 %10 to i1
  br i1 %11, label %12, label %.critedge

12:                                               ; preds = %5
  %13 = load i32, ptr %8, align 8, !tbaa !14
  %14 = add nsw i32 %13, 1
  %15 = tail call noundef i64 @_ZNKSt6vectorIdSaIdEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #6
  %16 = sext i32 %14 to i64
  %17 = icmp ne i64 %15, %16
  %18 = icmp eq ptr %2, null
  %or.cond = or i1 %18, %17
  %19 = icmp eq ptr %3, null
  %or.cond4 = or i1 %19, %or.cond
  %20 = icmp eq ptr %4, null
  %or.cond6 = or i1 %20, %or.cond4
  br i1 %or.cond6, label %.critedge, label %21

21:                                               ; preds = %12
  %22 = tail call noundef i64 @_ZNKSt6vectorIdSaIdEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  %.not = icmp eq i64 %22, %15
  br i1 %.not, label %24, label %23

23:                                               ; preds = %21
  tail call void @_ZNSt6vectorIdSaIdEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %15)
  br label %24

24:                                               ; preds = %23, %21
  %25 = getelementptr inbounds i8, ptr %4, i64 8
  %26 = tail call noundef i64 @_ZNKSt6vectorIdSaIdEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %25) #6
  %.not83 = icmp eq i64 %26, %15
  br i1 %.not83, label %28, label %27

27:                                               ; preds = %24
  tail call void @_ZNSt6vectorIdSaIdEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24) %25, i64 noundef %15)
  br label %28

28:                                               ; preds = %27, %24
  store i8 1, ptr %3, align 1, !tbaa !15
  %29 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef 0) #6
  %30 = load double, ptr %29, align 8, !tbaa !16
  %31 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef 0) #6
  store double %30, ptr %31, align 8, !tbaa !16
  %32 = load i32, ptr %8, align 8, !tbaa !14
  %33 = icmp eq i32 %32, 0
  br i1 %33, label %.critedge, label %34

34:                                               ; preds = %28
  %35 = getelementptr inbounds i8, ptr %0, i64 16
  %36 = load double, ptr %35, align 8, !tbaa !17
  %37 = fcmp oeq double %36, 1.000000e+00
  br i1 %37, label %38, label %43

38:                                               ; preds = %34
  %39 = tail call ptr @_ZNKSt6vectorIdSaIdEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #6
  %40 = tail call ptr @_ZNKSt6vectorIdSaIdEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #6
  %41 = tail call ptr @_ZNSt6vectorIdSaIdEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %25) #6
  %42 = tail call ptr @_ZSt4copyIN9__gnu_cxx17__normal_iteratorIPKdSt6vectorIdSaIdEEEENS1_IPdS6_EEET0_T_SB_SA_(ptr %39, ptr %40, ptr %41)
  br label %50

43:                                               ; preds = %34
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #6
  %44 = tail call ptr @_ZNKSt6vectorIdSaIdEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #6
  store ptr %44, ptr %6, align 8
  %45 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKdSt6vectorIdSaIdEEEplEl(ptr noundef nonnull align 8 dereferenceable(8) %6, i64 noundef 1) #6
  %46 = call ptr @_ZNKSt6vectorIdSaIdEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #6
  %47 = call ptr @_ZNSt6vectorIdSaIdEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %25) #6
  store ptr %47, ptr %7, align 8
  %48 = call ptr @_ZNK9__gnu_cxx17__normal_iteratorIPdSt6vectorIdSaIdEEEplEl(ptr noundef nonnull align 8 dereferenceable(8) %7, i64 noundef 1) #6
  %49 = call ptr @"_ZSt9transformIN9__gnu_cxx17__normal_iteratorIPKdSt6vectorIdSaIdEEEENS1_IPdS6_EEZNK4sptk48LinearPredictiveCoefficientsToParcorCoefficients3RunERKS6_PS6_PbPNSB_6BufferEE3$_0ET0_T_SK_SJ_T1_"(ptr %45, ptr %46, ptr %48, double %36)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #6
  br label %50

50:                                               ; preds = %43, %38
  %51 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %25, i64 noundef 0) #6
  %52 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef 0) #6
  %53 = load i32, ptr %8, align 8, !tbaa !14
  %54 = icmp slt i32 %53, 1
  br i1 %54, label %.critedge, label %.preheader.preheader

.preheader.preheader:                             ; preds = %50
  %55 = ptrtoint ptr %52 to i64
  %56 = ptrtoint ptr %51 to i64
  %57 = add nuw i32 %53, 1
  %58 = zext i32 %57 to i64
  %59 = zext nneg i32 %53 to i64
  %scevgep = getelementptr inbounds i8, ptr %51, i64 8
  %60 = shl nuw nsw i64 %59, 3
  %scevgep110 = getelementptr inbounds i8, ptr %52, i64 8
  %61 = sub i64 %55, %56
  %62 = zext nneg i32 %53 to i64
  %63 = zext nneg i32 %53 to i64
  %64 = getelementptr i8, ptr %52, i64 %60
  %65 = getelementptr i8, ptr %64, i64 8
  %diff.check = icmp ult i64 %61, 32
  %bound1114 = icmp ult ptr %52, %51
  %invariant.gep = getelementptr i8, ptr %52, i64 -8
  br label %.preheader

.preheader:                                       ; preds = %._crit_edge, %.preheader.preheader
  %indvar = phi i64 [ %indvar.next, %._crit_edge ], [ 0, %.preheader.preheader ]
  %indvars.iv102 = phi i64 [ %indvars.iv.next103, %._crit_edge ], [ %59, %.preheader.preheader ]
  %indvars.iv100 = phi i64 [ %indvars.iv.next101, %._crit_edge ], [ %58, %.preheader.preheader ]
  %66 = xor i64 %indvar, -1
  %67 = add i64 %66, %59
  %68 = sub i64 %62, %indvar
  %69 = xor i64 %indvar, -1
  %70 = add i64 %69, %59
  %71 = mul nsw i64 %indvar, -8
  %72 = add i64 %60, %71
  %scevgep109 = getelementptr i8, ptr %51, i64 %72
  %scevgep111 = getelementptr i8, ptr %52, i64 %72
  %scevgep112 = getelementptr i8, ptr %65, i64 %71
  %min.iters.check122 = icmp ult i64 %68, 4
  %or.cond135 = or i1 %min.iters.check122, %diff.check
  br i1 %or.cond135, label %scalar.ph121.preheader, label %vector.ph123

scalar.ph121.preheader:                           ; preds = %middle.block120, %.preheader
  %indvars.iv.ph = phi i64 [ 1, %.preheader ], [ %ind.end126, %middle.block120 ]
  %73 = sub i64 %indvars.iv100, %indvars.iv.ph
  %74 = add i64 %indvar, %indvars.iv.ph
  %75 = sub i64 %63, %74
  %xtraiter = and i64 %73, 3
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %scalar.ph121.prol.loopexit, label %scalar.ph121.prol

scalar.ph121.prol:                                ; preds = %scalar.ph121.preheader, %scalar.ph121.prol
  %indvars.iv.prol = phi i64 [ %indvars.iv.next.prol, %scalar.ph121.prol ], [ %indvars.iv.ph, %scalar.ph121.preheader ]
  %prol.iter = phi i64 [ %prol.iter.next, %scalar.ph121.prol ], [ 0, %scalar.ph121.preheader ]
  %76 = getelementptr inbounds double, ptr %51, i64 %indvars.iv.prol
  %77 = load double, ptr %76, align 8, !tbaa !16
  %78 = getelementptr inbounds double, ptr %52, i64 %indvars.iv.prol
  store double %77, ptr %78, align 8, !tbaa !16
  %indvars.iv.next.prol = add nuw nsw i64 %indvars.iv.prol, 1
  %prol.iter.next = add i64 %prol.iter, 1
  %prol.iter.cmp.not = icmp eq i64 %prol.iter.next, %xtraiter
  br i1 %prol.iter.cmp.not, label %scalar.ph121.prol.loopexit, label %scalar.ph121.prol, !llvm.loop !18

scalar.ph121.prol.loopexit:                       ; preds = %scalar.ph121.prol, %scalar.ph121.preheader
  %indvars.iv.unr = phi i64 [ %indvars.iv.ph, %scalar.ph121.preheader ], [ %indvars.iv.next.prol, %scalar.ph121.prol ]
  %79 = icmp ult i64 %75, 3
  br i1 %79, label %.loopexit, label %scalar.ph121

vector.ph123:                                     ; preds = %.preheader
  %n.vec125 = and i64 %68, -4
  %ind.end126 = or disjoint i64 %n.vec125, 1
  br label %vector.body128

vector.body128:                                   ; preds = %vector.body128, %vector.ph123
  %index129 = phi i64 [ 0, %vector.ph123 ], [ %index.next133, %vector.body128 ]
  %offset.idx130 = or disjoint i64 %index129, 1
  %80 = getelementptr inbounds double, ptr %51, i64 %offset.idx130
  %81 = getelementptr inbounds i8, ptr %80, i64 16
  %wide.load131 = load <2 x double>, ptr %80, align 8, !tbaa !16
  %wide.load132 = load <2 x double>, ptr %81, align 8, !tbaa !16
  %82 = getelementptr inbounds double, ptr %52, i64 %offset.idx130
  %83 = getelementptr inbounds i8, ptr %82, i64 16
  store <2 x double> %wide.load131, ptr %82, align 8, !tbaa !16
  store <2 x double> %wide.load132, ptr %83, align 8, !tbaa !16
  %index.next133 = add nuw i64 %index129, 4
  %84 = icmp eq i64 %index.next133, %n.vec125
  br i1 %84, label %middle.block120, label %vector.body128, !llvm.loop !20

middle.block120:                                  ; preds = %vector.body128
  %cmp.n134 = icmp eq i64 %68, %n.vec125
  br i1 %cmp.n134, label %.loopexit, label %scalar.ph121.preheader

.loopexit:                                        ; preds = %scalar.ph121.prol.loopexit, %scalar.ph121, %middle.block120
  %85 = getelementptr inbounds double, ptr %52, i64 %indvars.iv102
  %86 = load double, ptr %85, align 8, !tbaa !16
  %87 = fneg double %86
  %88 = call double @llvm.fmuladd.f64(double %87, double %86, double 1.000000e+00)
  %89 = fcmp une double %88, 0.000000e+00
  br i1 %89, label %102, label %.critedge

scalar.ph121:                                     ; preds = %scalar.ph121.prol.loopexit, %scalar.ph121
  %indvars.iv = phi i64 [ %indvars.iv.next.3, %scalar.ph121 ], [ %indvars.iv.unr, %scalar.ph121.prol.loopexit ]
  %90 = getelementptr inbounds double, ptr %51, i64 %indvars.iv
  %91 = load double, ptr %90, align 8, !tbaa !16
  %92 = getelementptr inbounds double, ptr %52, i64 %indvars.iv
  store double %91, ptr %92, align 8, !tbaa !16
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %93 = getelementptr inbounds double, ptr %51, i64 %indvars.iv.next
  %94 = load double, ptr %93, align 8, !tbaa !16
  %95 = getelementptr inbounds double, ptr %52, i64 %indvars.iv.next
  store double %94, ptr %95, align 8, !tbaa !16
  %indvars.iv.next.1 = add nuw nsw i64 %indvars.iv, 2
  %96 = getelementptr inbounds double, ptr %51, i64 %indvars.iv.next.1
  %97 = load double, ptr %96, align 8, !tbaa !16
  %98 = getelementptr inbounds double, ptr %52, i64 %indvars.iv.next.1
  store double %97, ptr %98, align 8, !tbaa !16
  %indvars.iv.next.2 = add nuw nsw i64 %indvars.iv, 3
  %99 = getelementptr inbounds double, ptr %51, i64 %indvars.iv.next.2
  %100 = load double, ptr %99, align 8, !tbaa !16
  %101 = getelementptr inbounds double, ptr %52, i64 %indvars.iv.next.2
  store double %100, ptr %101, align 8, !tbaa !16
  %indvars.iv.next.3 = add nuw nsw i64 %indvars.iv, 4
  %exitcond.not.3 = icmp eq i64 %indvars.iv.next.3, %indvars.iv100
  br i1 %exitcond.not.3, label %.loopexit, label %scalar.ph121, !llvm.loop !24

102:                                              ; preds = %.loopexit
  %103 = call double @llvm.fabs.f64(double %86)
  %104 = fcmp ult double %103, 1.000000e+00
  br i1 %104, label %106, label %105

105:                                              ; preds = %102
  store i8 0, ptr %3, align 1, !tbaa !15
  br label %106

106:                                              ; preds = %105, %102
  %107 = icmp sgt i64 %indvars.iv102, 1
  br i1 %107, label %.lr.ph.preheader, label %.critedge

.lr.ph.preheader:                                 ; preds = %106
  %min.iters.check = icmp ult i64 %70, 2
  br i1 %min.iters.check, label %.lr.ph.preheader136, label %vector.memcheck

vector.memcheck:                                  ; preds = %.lr.ph.preheader
  %bound0 = icmp ult ptr %scevgep, %scevgep111
  %bound1 = icmp ult ptr %scevgep110, %scevgep109
  %found.conflict = and i1 %bound0, %bound1
  %bound0113 = icmp ult ptr %scevgep, %scevgep112
  %found.conflict115 = and i1 %bound0113, %bound1114
  %conflict.rdx = or i1 %found.conflict, %found.conflict115
  br i1 %conflict.rdx, label %.lr.ph.preheader136, label %vector.ph

vector.ph:                                        ; preds = %vector.memcheck
  %n.vec = and i64 %70, -2
  %ind.end = or i64 %70, 1
  %broadcast.splatinsert117 = insertelement <2 x double> poison, double %88, i64 0
  %broadcast.splat118 = shufflevector <2 x double> %broadcast.splatinsert117, <2 x double> poison, <2 x i32> zeroinitializer
  %108 = load double, ptr %85, align 8, !tbaa !16, !alias.scope !25
  %broadcast.splatinsert = insertelement <2 x double> poison, double %108, i64 0
  %broadcast.splat = shufflevector <2 x double> %broadcast.splatinsert, <2 x double> poison, <2 x i32> zeroinitializer
  %109 = fneg <2 x double> %broadcast.splat
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %offset.idx = or disjoint i64 %index, 1
  %110 = getelementptr inbounds double, ptr %52, i64 %offset.idx
  %wide.load = load <2 x double>, ptr %110, align 8, !tbaa !16, !alias.scope !28
  %111 = sub nsw i64 %indvars.iv102, %offset.idx
  %gep = getelementptr double, ptr %invariant.gep, i64 %111
  %wide.load116 = load <2 x double>, ptr %gep, align 8, !tbaa !16, !alias.scope !28
  %reverse = shufflevector <2 x double> %wide.load116, <2 x double> poison, <2 x i32> <i32 1, i32 0>
  %112 = call <2 x double> @llvm.fmuladd.v2f64(<2 x double> %109, <2 x double> %reverse, <2 x double> %wide.load)
  %113 = fdiv <2 x double> %112, %broadcast.splat118
  %114 = getelementptr inbounds double, ptr %51, i64 %offset.idx
  store <2 x double> %113, ptr %114, align 8, !tbaa !16, !alias.scope !30, !noalias !32
  %index.next = add nuw i64 %index, 2
  %115 = icmp eq i64 %index.next, %n.vec
  br i1 %115, label %middle.block, label %vector.body, !llvm.loop !33

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %70, %n.vec
  br i1 %cmp.n, label %._crit_edge, label %.lr.ph.preheader136

.lr.ph.preheader136:                              ; preds = %middle.block, %vector.memcheck, %.lr.ph.preheader
  %indvars.iv95.ph = phi i64 [ 1, %vector.memcheck ], [ 1, %.lr.ph.preheader ], [ %ind.end, %middle.block ]
  %116 = and i64 %indvars.iv102, 1
  %lcmp.mod138.not.not = icmp eq i64 %116, 0
  br i1 %lcmp.mod138.not.not, label %.lr.ph.prol, label %.lr.ph.prol.loopexit

.lr.ph.prol:                                      ; preds = %.lr.ph.preheader136
  %117 = getelementptr inbounds double, ptr %52, i64 %indvars.iv95.ph
  %118 = load double, ptr %117, align 8, !tbaa !16
  %119 = load double, ptr %85, align 8, !tbaa !16
  %120 = sub nsw i64 %indvars.iv102, %indvars.iv95.ph
  %121 = getelementptr inbounds double, ptr %52, i64 %120
  %122 = load double, ptr %121, align 8, !tbaa !16
  %123 = fneg double %119
  %124 = call double @llvm.fmuladd.f64(double %123, double %122, double %118)
  %125 = fdiv double %124, %88
  %126 = getelementptr inbounds double, ptr %51, i64 %indvars.iv95.ph
  store double %125, ptr %126, align 8, !tbaa !16
  %indvars.iv.next96.prol = add nuw nsw i64 %indvars.iv95.ph, 1
  br label %.lr.ph.prol.loopexit

.lr.ph.prol.loopexit:                             ; preds = %.lr.ph.prol, %.lr.ph.preheader136
  %indvars.iv95.unr = phi i64 [ %indvars.iv95.ph, %.lr.ph.preheader136 ], [ %indvars.iv.next96.prol, %.lr.ph.prol ]
  %127 = icmp eq i64 %67, %indvars.iv95.ph
  br i1 %127, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.prol.loopexit, %.lr.ph
  %indvars.iv95 = phi i64 [ %indvars.iv.next96.1, %.lr.ph ], [ %indvars.iv95.unr, %.lr.ph.prol.loopexit ]
  %128 = getelementptr inbounds double, ptr %52, i64 %indvars.iv95
  %129 = load double, ptr %128, align 8, !tbaa !16
  %130 = load double, ptr %85, align 8, !tbaa !16
  %131 = sub nsw i64 %indvars.iv102, %indvars.iv95
  %132 = getelementptr inbounds double, ptr %52, i64 %131
  %133 = load double, ptr %132, align 8, !tbaa !16
  %134 = fneg double %130
  %135 = call double @llvm.fmuladd.f64(double %134, double %133, double %129)
  %136 = fdiv double %135, %88
  %137 = getelementptr inbounds double, ptr %51, i64 %indvars.iv95
  store double %136, ptr %137, align 8, !tbaa !16
  %indvars.iv.next96 = add nuw nsw i64 %indvars.iv95, 1
  %138 = getelementptr inbounds double, ptr %52, i64 %indvars.iv.next96
  %139 = load double, ptr %138, align 8, !tbaa !16
  %140 = load double, ptr %85, align 8, !tbaa !16
  %141 = sub nsw i64 %indvars.iv102, %indvars.iv.next96
  %142 = getelementptr inbounds double, ptr %52, i64 %141
  %143 = load double, ptr %142, align 8, !tbaa !16
  %144 = fneg double %140
  %145 = call double @llvm.fmuladd.f64(double %144, double %143, double %139)
  %146 = fdiv double %145, %88
  %147 = getelementptr inbounds double, ptr %51, i64 %indvars.iv.next96
  store double %146, ptr %147, align 8, !tbaa !16
  %indvars.iv.next96.1 = add nuw nsw i64 %indvars.iv95, 2
  %exitcond99.not.1 = icmp eq i64 %indvars.iv.next96.1, %indvars.iv102
  br i1 %exitcond99.not.1, label %._crit_edge, label %.lr.ph, !llvm.loop !34

._crit_edge:                                      ; preds = %.lr.ph.prol.loopexit, %.lr.ph, %middle.block
  %indvars.iv.next103 = add nsw i64 %indvars.iv102, -1
  %indvars.iv.next101 = add nsw i64 %indvars.iv100, -1
  %indvar.next = add i64 %indvar, 1
  br label %.preheader, !llvm.loop !35

.critedge:                                        ; preds = %106, %.loopexit, %50, %28, %5, %12
  %.4 = phi i1 [ false, %12 ], [ false, %5 ], [ true, %28 ], [ true, %50 ], [ %89, %.loopexit ], [ %89, %106 ]
  ret i1 %.4
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIdSaIdEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIdSaIdEE6resizeEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIdSaIdEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt4copyIN9__gnu_cxx17__normal_iteratorIPKdSt6vectorIdSaIdEEEENS1_IPdS6_EEET0_T_SB_SA_(ptr, ptr, ptr) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorIdSaIdEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorIdSaIdEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIdSaIdEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare hidden ptr @"_ZSt9transformIN9__gnu_cxx17__normal_iteratorIPKdSt6vectorIdSaIdEEEENS1_IPdS6_EEZNK4sptk48LinearPredictiveCoefficientsToParcorCoefficients3RunERKS6_PS6_PbPNSB_6BufferEE3$_0ET0_T_SK_SJ_T1_"(ptr, ptr, ptr, double) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKdSt6vectorIdSaIdEEEplEl(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNK9__gnu_cxx17__normal_iteratorIPdSt6vectorIdSaIdEEEplEl(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #4

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fabs.f64(double) #4

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare <2 x double> @llvm.fmuladd.v2f64(<2 x double>, <2 x double>, <2 x double>) #5

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #5 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #6 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !11, i64 24}
!6 = !{!"_ZTSN4sptk48LinearPredictiveCoefficientsToParcorCoefficientsE", !7, i64 8, !10, i64 16, !11, i64 24}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"double", !8, i64 0}
!11 = !{!"bool", !8, i64 0}
!12 = !{i8 0, i8 2}
!13 = !{}
!14 = !{!6, !7, i64 8}
!15 = !{!11, !11, i64 0}
!16 = !{!10, !10, i64 0}
!17 = !{!6, !10, i64 16}
!18 = distinct !{!18, !19}
!19 = !{!"llvm.loop.unroll.disable"}
!20 = distinct !{!20, !21, !22, !23}
!21 = !{!"llvm.loop.mustprogress"}
!22 = !{!"llvm.loop.isvectorized", i32 1}
!23 = !{!"llvm.loop.unroll.runtime.disable"}
!24 = distinct !{!24, !21, !22}
!25 = !{!26}
!26 = distinct !{!26, !27}
!27 = distinct !{!27, !"LVerDomain"}
!28 = !{!29}
!29 = distinct !{!29, !27}
!30 = !{!31}
!31 = distinct !{!31, !27}
!32 = !{!29, !26}
!33 = distinct !{!33, !21, !22, !23}
!34 = distinct !{!34, !21, !22}
!35 = distinct !{!35, !21}


; Effective O3 passes: ConstraintEliminationPass,CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopLoadEliminationPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,LoopVectorizePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass