; LLVM IR from cryspen/libcrux :: sys/hacl/c/src (Hacl_HPKE_Curve51_CP128_SHA256)

; 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"

%struct.Hacl_Impl_HPKE_context_s_s = type { ptr, ptr, ptr, ptr }

; Function Attrs: nounwind uwtable
declare dso_local i32 @Hacl_HPKE_Curve51_CP128_SHA256_setupBaseS(ptr noundef, ptr noundef byval(%struct.Hacl_Impl_HPKE_context_s_s) align 8, ptr noundef, ptr noundef, i32 noundef, ptr noundef) #0

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

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

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

; Function Attrs: nounwind uwtable
define dso_local i32 @Hacl_HPKE_Curve51_CP128_SHA256_sealBase(ptr noundef %0, ptr noundef %1, i32 noundef %2, ptr noundef %3, i32 noundef %4, ptr noundef %5, i32 noundef %6, ptr noundef %7, ptr noundef %8, ptr noundef %9) #0 {
  %11 = alloca i32, align 4
  %12 = alloca ptr, align 8
  %13 = alloca ptr, align 8
  %14 = alloca i32, align 4
  %15 = alloca ptr, align 8
  %16 = alloca i32, align 4
  %17 = alloca ptr, align 8
  %18 = alloca i32, align 4
  %19 = alloca ptr, align 8
  %20 = alloca ptr, align 8
  %21 = alloca ptr, align 8
  %22 = alloca [32 x i8], align 16
  %23 = alloca [12 x i8], align 1
  %24 = alloca i64, align 8
  %25 = alloca [32 x i8], align 16
  %26 = alloca %struct.Hacl_Impl_HPKE_context_s_s, align 8
  %27 = alloca i32, align 4
  %28 = alloca [12 x i8], align 1
  %29 = alloca i64, align 8
  %30 = alloca [12 x i8], align 1
  %31 = alloca i32, align 4
  %32 = alloca i8, align 1
  %33 = alloca i8, align 1
  %34 = alloca i8, align 1
  %35 = alloca i8, align 1
  %36 = alloca i8, align 1
  %37 = alloca i8, align 1
  %38 = alloca i8, align 1
  %39 = alloca i8, align 1
  %40 = alloca i8, align 1
  %41 = alloca i8, align 1
  %42 = alloca i8, align 1
  %43 = alloca i8, align 1
  %44 = alloca i8, align 1
  %45 = alloca i8, align 1
  %46 = alloca i8, align 1
  %47 = alloca i8, align 1
  %48 = alloca i8, align 1
  %49 = alloca i8, align 1
  %50 = alloca i8, align 1
  %51 = alloca i8, align 1
  %52 = alloca i8, align 1
  %53 = alloca i8, align 1
  %54 = alloca i8, align 1
  %55 = alloca i8, align 1
  %56 = alloca ptr, align 8
  %57 = alloca ptr, align 8
  %58 = alloca i64, align 8
  %59 = alloca i32, align 4
  %60 = alloca i64, align 8
  %61 = alloca i32, align 4
  %62 = alloca i32, align 4
  store ptr %0, ptr %12, align 8, !tbaa !5
  store ptr %1, ptr %13, align 8, !tbaa !5
  store i32 %2, ptr %14, align 4, !tbaa !9
  store ptr %3, ptr %15, align 8, !tbaa !5
  store i32 %4, ptr %16, align 4, !tbaa !9
  store ptr %5, ptr %17, align 8, !tbaa !5
  store i32 %6, ptr %18, align 4, !tbaa !9
  store ptr %7, ptr %19, align 8, !tbaa !5
  store ptr %8, ptr %20, align 8, !tbaa !5
  store ptr %9, ptr %21, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 32, ptr %22) #5
  call void @llvm.memset.p0.i64(ptr align 16 %22, i8 0, i64 32, i1 false)
  call void @llvm.lifetime.start.p0(i64 12, ptr %23) #5
  call void @llvm.memset.p0.i64(ptr align 1 %23, i8 0, i64 12, i1 false)
  call void @llvm.lifetime.start.p0(i64 8, ptr %24) #5
  store i64 0, ptr %24, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 32, ptr %25) #5
  call void @llvm.memset.p0.i64(ptr align 16 %25, i8 0, i64 32, i1 false)
  call void @llvm.lifetime.start.p0(i64 32, ptr %26) #5
  %63 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 0
  %64 = getelementptr inbounds [32 x i8], ptr %22, i64 0, i64 0
  store ptr %64, ptr %63, align 8, !tbaa !13
  %65 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 1
  %66 = getelementptr inbounds [12 x i8], ptr %23, i64 0, i64 0
  store ptr %66, ptr %65, align 8, !tbaa !15
  %67 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 2
  store ptr %24, ptr %67, align 8, !tbaa !16
  %68 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 3
  %69 = getelementptr inbounds [32 x i8], ptr %25, i64 0, i64 0
  store ptr %69, ptr %68, align 8, !tbaa !17
  call void @llvm.lifetime.start.p0(i64 4, ptr %27) #5
  %70 = load ptr, ptr %20, align 8, !tbaa !5
  %71 = load ptr, ptr %12, align 8, !tbaa !5
  %72 = load ptr, ptr %13, align 8, !tbaa !5
  %73 = load i32, ptr %14, align 4, !tbaa !9
  %74 = load ptr, ptr %15, align 8, !tbaa !5
  %75 = call i32 @Hacl_HPKE_Curve51_CP128_SHA256_setupBaseS(ptr noundef %70, ptr noundef byval(%struct.Hacl_Impl_HPKE_context_s_s) align 8 %26, ptr noundef %71, ptr noundef %72, i32 noundef %73, ptr noundef %74)
  store i32 %75, ptr %27, align 4, !tbaa !9
  %76 = load i32, ptr %27, align 4, !tbaa !9
  %77 = icmp eq i32 %76, 0
  br i1 %77, label %78, label %385

78:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 12, ptr %28) #5
  call void @llvm.memset.p0.i64(ptr align 1 %28, i8 0, i64 12, i1 false)
  call void @llvm.lifetime.start.p0(i64 8, ptr %29) #5
  %79 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 2
  %80 = load ptr, ptr %79, align 8, !tbaa !16
  %81 = getelementptr inbounds i64, ptr %80, i64 0
  %82 = load i64, ptr %81, align 8, !tbaa !11
  store i64 %82, ptr %29, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 12, ptr %30) #5
  call void @llvm.memset.p0.i64(ptr align 1 %30, i8 0, i64 12, i1 false)
  %83 = getelementptr inbounds [12 x i8], ptr %30, i64 0, i64 0
  %84 = getelementptr inbounds i8, ptr %83, i64 4
  %85 = load i64, ptr %29, align 8, !tbaa !11
  %86 = call i64 @__bswap_64(i64 noundef %85)
  call void @store64(ptr noundef %84, i64 noundef %86)
  br label %87

87:                                               ; preds = %78
  call void @llvm.lifetime.start.p0(i64 4, ptr %31) #5
  store i32 0, ptr %31, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 1, ptr %32) #5
  %88 = load i32, ptr %31, align 4, !tbaa !9
  %89 = zext i32 %88 to i64
  %90 = getelementptr inbounds [12 x i8], ptr %30, i64 0, i64 %89
  %91 = load i8, ptr %90, align 1, !tbaa !18
  store i8 %91, ptr %32, align 1, !tbaa !18
  call void @llvm.lifetime.start.p0(i64 1, ptr %33) #5
  %92 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 1
  %93 = load ptr, ptr %92, align 8, !tbaa !15
  %94 = load i32, ptr %31, align 4, !tbaa !9
  %95 = zext i32 %94 to i64
  %96 = getelementptr inbounds i8, ptr %93, i64 %95
  %97 = load i8, ptr %96, align 1, !tbaa !18
  store i8 %97, ptr %33, align 1, !tbaa !18
  %98 = load i8, ptr %32, align 1, !tbaa !18
  %99 = zext i8 %98 to i32
  %100 = load i8, ptr %33, align 1, !tbaa !18
  %101 = zext i8 %100 to i32
  %102 = xor i32 %99, %101
  %103 = trunc i32 %102 to i8
  %104 = load i32, ptr %31, align 4, !tbaa !9
  %105 = zext i32 %104 to i64
  %106 = getelementptr inbounds [12 x i8], ptr %28, i64 0, i64 %105
  store i8 %103, ptr %106, align 1, !tbaa !18
  %107 = load i32, ptr %31, align 4, !tbaa !9
  %108 = add i32 %107, 1
  store i32 %108, ptr %31, align 4, !tbaa !9
  %109 = load i32, ptr %31, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %33) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %32) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %34) #5
  %110 = load i32, ptr %31, align 4, !tbaa !9
  %111 = zext i32 %110 to i64
  %112 = getelementptr inbounds [12 x i8], ptr %30, i64 0, i64 %111
  %113 = load i8, ptr %112, align 1, !tbaa !18
  store i8 %113, ptr %34, align 1, !tbaa !18
  call void @llvm.lifetime.start.p0(i64 1, ptr %35) #5
  %114 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 1
  %115 = load ptr, ptr %114, align 8, !tbaa !15
  %116 = load i32, ptr %31, align 4, !tbaa !9
  %117 = zext i32 %116 to i64
  %118 = getelementptr inbounds i8, ptr %115, i64 %117
  %119 = load i8, ptr %118, align 1, !tbaa !18
  store i8 %119, ptr %35, align 1, !tbaa !18
  %120 = load i8, ptr %34, align 1, !tbaa !18
  %121 = zext i8 %120 to i32
  %122 = load i8, ptr %35, align 1, !tbaa !18
  %123 = zext i8 %122 to i32
  %124 = xor i32 %121, %123
  %125 = trunc i32 %124 to i8
  %126 = load i32, ptr %31, align 4, !tbaa !9
  %127 = zext i32 %126 to i64
  %128 = getelementptr inbounds [12 x i8], ptr %28, i64 0, i64 %127
  store i8 %125, ptr %128, align 1, !tbaa !18
  %129 = load i32, ptr %31, align 4, !tbaa !9
  %130 = add i32 %129, 1
  store i32 %130, ptr %31, align 4, !tbaa !9
  %131 = load i32, ptr %31, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %35) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %34) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %36) #5
  %132 = load i32, ptr %31, align 4, !tbaa !9
  %133 = zext i32 %132 to i64
  %134 = getelementptr inbounds [12 x i8], ptr %30, i64 0, i64 %133
  %135 = load i8, ptr %134, align 1, !tbaa !18
  store i8 %135, ptr %36, align 1, !tbaa !18
  call void @llvm.lifetime.start.p0(i64 1, ptr %37) #5
  %136 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 1
  %137 = load ptr, ptr %136, align 8, !tbaa !15
  %138 = load i32, ptr %31, align 4, !tbaa !9
  %139 = zext i32 %138 to i64
  %140 = getelementptr inbounds i8, ptr %137, i64 %139
  %141 = load i8, ptr %140, align 1, !tbaa !18
  store i8 %141, ptr %37, align 1, !tbaa !18
  %142 = load i8, ptr %36, align 1, !tbaa !18
  %143 = zext i8 %142 to i32
  %144 = load i8, ptr %37, align 1, !tbaa !18
  %145 = zext i8 %144 to i32
  %146 = xor i32 %143, %145
  %147 = trunc i32 %146 to i8
  %148 = load i32, ptr %31, align 4, !tbaa !9
  %149 = zext i32 %148 to i64
  %150 = getelementptr inbounds [12 x i8], ptr %28, i64 0, i64 %149
  store i8 %147, ptr %150, align 1, !tbaa !18
  %151 = load i32, ptr %31, align 4, !tbaa !9
  %152 = add i32 %151, 1
  store i32 %152, ptr %31, align 4, !tbaa !9
  %153 = load i32, ptr %31, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %37) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %36) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %38) #5
  %154 = load i32, ptr %31, align 4, !tbaa !9
  %155 = zext i32 %154 to i64
  %156 = getelementptr inbounds [12 x i8], ptr %30, i64 0, i64 %155
  %157 = load i8, ptr %156, align 1, !tbaa !18
  store i8 %157, ptr %38, align 1, !tbaa !18
  call void @llvm.lifetime.start.p0(i64 1, ptr %39) #5
  %158 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 1
  %159 = load ptr, ptr %158, align 8, !tbaa !15
  %160 = load i32, ptr %31, align 4, !tbaa !9
  %161 = zext i32 %160 to i64
  %162 = getelementptr inbounds i8, ptr %159, i64 %161
  %163 = load i8, ptr %162, align 1, !tbaa !18
  store i8 %163, ptr %39, align 1, !tbaa !18
  %164 = load i8, ptr %38, align 1, !tbaa !18
  %165 = zext i8 %164 to i32
  %166 = load i8, ptr %39, align 1, !tbaa !18
  %167 = zext i8 %166 to i32
  %168 = xor i32 %165, %167
  %169 = trunc i32 %168 to i8
  %170 = load i32, ptr %31, align 4, !tbaa !9
  %171 = zext i32 %170 to i64
  %172 = getelementptr inbounds [12 x i8], ptr %28, i64 0, i64 %171
  store i8 %169, ptr %172, align 1, !tbaa !18
  %173 = load i32, ptr %31, align 4, !tbaa !9
  %174 = add i32 %173, 1
  store i32 %174, ptr %31, align 4, !tbaa !9
  %175 = load i32, ptr %31, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %39) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %38) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %40) #5
  %176 = load i32, ptr %31, align 4, !tbaa !9
  %177 = zext i32 %176 to i64
  %178 = getelementptr inbounds [12 x i8], ptr %30, i64 0, i64 %177
  %179 = load i8, ptr %178, align 1, !tbaa !18
  store i8 %179, ptr %40, align 1, !tbaa !18
  call void @llvm.lifetime.start.p0(i64 1, ptr %41) #5
  %180 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 1
  %181 = load ptr, ptr %180, align 8, !tbaa !15
  %182 = load i32, ptr %31, align 4, !tbaa !9
  %183 = zext i32 %182 to i64
  %184 = getelementptr inbounds i8, ptr %181, i64 %183
  %185 = load i8, ptr %184, align 1, !tbaa !18
  store i8 %185, ptr %41, align 1, !tbaa !18
  %186 = load i8, ptr %40, align 1, !tbaa !18
  %187 = zext i8 %186 to i32
  %188 = load i8, ptr %41, align 1, !tbaa !18
  %189 = zext i8 %188 to i32
  %190 = xor i32 %187, %189
  %191 = trunc i32 %190 to i8
  %192 = load i32, ptr %31, align 4, !tbaa !9
  %193 = zext i32 %192 to i64
  %194 = getelementptr inbounds [12 x i8], ptr %28, i64 0, i64 %193
  store i8 %191, ptr %194, align 1, !tbaa !18
  %195 = load i32, ptr %31, align 4, !tbaa !9
  %196 = add i32 %195, 1
  store i32 %196, ptr %31, align 4, !tbaa !9
  %197 = load i32, ptr %31, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %41) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %40) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %42) #5
  %198 = load i32, ptr %31, align 4, !tbaa !9
  %199 = zext i32 %198 to i64
  %200 = getelementptr inbounds [12 x i8], ptr %30, i64 0, i64 %199
  %201 = load i8, ptr %200, align 1, !tbaa !18
  store i8 %201, ptr %42, align 1, !tbaa !18
  call void @llvm.lifetime.start.p0(i64 1, ptr %43) #5
  %202 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 1
  %203 = load ptr, ptr %202, align 8, !tbaa !15
  %204 = load i32, ptr %31, align 4, !tbaa !9
  %205 = zext i32 %204 to i64
  %206 = getelementptr inbounds i8, ptr %203, i64 %205
  %207 = load i8, ptr %206, align 1, !tbaa !18
  store i8 %207, ptr %43, align 1, !tbaa !18
  %208 = load i8, ptr %42, align 1, !tbaa !18
  %209 = zext i8 %208 to i32
  %210 = load i8, ptr %43, align 1, !tbaa !18
  %211 = zext i8 %210 to i32
  %212 = xor i32 %209, %211
  %213 = trunc i32 %212 to i8
  %214 = load i32, ptr %31, align 4, !tbaa !9
  %215 = zext i32 %214 to i64
  %216 = getelementptr inbounds [12 x i8], ptr %28, i64 0, i64 %215
  store i8 %213, ptr %216, align 1, !tbaa !18
  %217 = load i32, ptr %31, align 4, !tbaa !9
  %218 = add i32 %217, 1
  store i32 %218, ptr %31, align 4, !tbaa !9
  %219 = load i32, ptr %31, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %43) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %42) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %44) #5
  %220 = load i32, ptr %31, align 4, !tbaa !9
  %221 = zext i32 %220 to i64
  %222 = getelementptr inbounds [12 x i8], ptr %30, i64 0, i64 %221
  %223 = load i8, ptr %222, align 1, !tbaa !18
  store i8 %223, ptr %44, align 1, !tbaa !18
  call void @llvm.lifetime.start.p0(i64 1, ptr %45) #5
  %224 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 1
  %225 = load ptr, ptr %224, align 8, !tbaa !15
  %226 = load i32, ptr %31, align 4, !tbaa !9
  %227 = zext i32 %226 to i64
  %228 = getelementptr inbounds i8, ptr %225, i64 %227
  %229 = load i8, ptr %228, align 1, !tbaa !18
  store i8 %229, ptr %45, align 1, !tbaa !18
  %230 = load i8, ptr %44, align 1, !tbaa !18
  %231 = zext i8 %230 to i32
  %232 = load i8, ptr %45, align 1, !tbaa !18
  %233 = zext i8 %232 to i32
  %234 = xor i32 %231, %233
  %235 = trunc i32 %234 to i8
  %236 = load i32, ptr %31, align 4, !tbaa !9
  %237 = zext i32 %236 to i64
  %238 = getelementptr inbounds [12 x i8], ptr %28, i64 0, i64 %237
  store i8 %235, ptr %238, align 1, !tbaa !18
  %239 = load i32, ptr %31, align 4, !tbaa !9
  %240 = add i32 %239, 1
  store i32 %240, ptr %31, align 4, !tbaa !9
  %241 = load i32, ptr %31, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %45) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %44) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %46) #5
  %242 = load i32, ptr %31, align 4, !tbaa !9
  %243 = zext i32 %242 to i64
  %244 = getelementptr inbounds [12 x i8], ptr %30, i64 0, i64 %243
  %245 = load i8, ptr %244, align 1, !tbaa !18
  store i8 %245, ptr %46, align 1, !tbaa !18
  call void @llvm.lifetime.start.p0(i64 1, ptr %47) #5
  %246 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 1
  %247 = load ptr, ptr %246, align 8, !tbaa !15
  %248 = load i32, ptr %31, align 4, !tbaa !9
  %249 = zext i32 %248 to i64
  %250 = getelementptr inbounds i8, ptr %247, i64 %249
  %251 = load i8, ptr %250, align 1, !tbaa !18
  store i8 %251, ptr %47, align 1, !tbaa !18
  %252 = load i8, ptr %46, align 1, !tbaa !18
  %253 = zext i8 %252 to i32
  %254 = load i8, ptr %47, align 1, !tbaa !18
  %255 = zext i8 %254 to i32
  %256 = xor i32 %253, %255
  %257 = trunc i32 %256 to i8
  %258 = load i32, ptr %31, align 4, !tbaa !9
  %259 = zext i32 %258 to i64
  %260 = getelementptr inbounds [12 x i8], ptr %28, i64 0, i64 %259
  store i8 %257, ptr %260, align 1, !tbaa !18
  %261 = load i32, ptr %31, align 4, !tbaa !9
  %262 = add i32 %261, 1
  store i32 %262, ptr %31, align 4, !tbaa !9
  %263 = load i32, ptr %31, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %47) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %46) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %48) #5
  %264 = load i32, ptr %31, align 4, !tbaa !9
  %265 = zext i32 %264 to i64
  %266 = getelementptr inbounds [12 x i8], ptr %30, i64 0, i64 %265
  %267 = load i8, ptr %266, align 1, !tbaa !18
  store i8 %267, ptr %48, align 1, !tbaa !18
  call void @llvm.lifetime.start.p0(i64 1, ptr %49) #5
  %268 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 1
  %269 = load ptr, ptr %268, align 8, !tbaa !15
  %270 = load i32, ptr %31, align 4, !tbaa !9
  %271 = zext i32 %270 to i64
  %272 = getelementptr inbounds i8, ptr %269, i64 %271
  %273 = load i8, ptr %272, align 1, !tbaa !18
  store i8 %273, ptr %49, align 1, !tbaa !18
  %274 = load i8, ptr %48, align 1, !tbaa !18
  %275 = zext i8 %274 to i32
  %276 = load i8, ptr %49, align 1, !tbaa !18
  %277 = zext i8 %276 to i32
  %278 = xor i32 %275, %277
  %279 = trunc i32 %278 to i8
  %280 = load i32, ptr %31, align 4, !tbaa !9
  %281 = zext i32 %280 to i64
  %282 = getelementptr inbounds [12 x i8], ptr %28, i64 0, i64 %281
  store i8 %279, ptr %282, align 1, !tbaa !18
  %283 = load i32, ptr %31, align 4, !tbaa !9
  %284 = add i32 %283, 1
  store i32 %284, ptr %31, align 4, !tbaa !9
  %285 = load i32, ptr %31, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %49) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %48) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %50) #5
  %286 = load i32, ptr %31, align 4, !tbaa !9
  %287 = zext i32 %286 to i64
  %288 = getelementptr inbounds [12 x i8], ptr %30, i64 0, i64 %287
  %289 = load i8, ptr %288, align 1, !tbaa !18
  store i8 %289, ptr %50, align 1, !tbaa !18
  call void @llvm.lifetime.start.p0(i64 1, ptr %51) #5
  %290 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 1
  %291 = load ptr, ptr %290, align 8, !tbaa !15
  %292 = load i32, ptr %31, align 4, !tbaa !9
  %293 = zext i32 %292 to i64
  %294 = getelementptr inbounds i8, ptr %291, i64 %293
  %295 = load i8, ptr %294, align 1, !tbaa !18
  store i8 %295, ptr %51, align 1, !tbaa !18
  %296 = load i8, ptr %50, align 1, !tbaa !18
  %297 = zext i8 %296 to i32
  %298 = load i8, ptr %51, align 1, !tbaa !18
  %299 = zext i8 %298 to i32
  %300 = xor i32 %297, %299
  %301 = trunc i32 %300 to i8
  %302 = load i32, ptr %31, align 4, !tbaa !9
  %303 = zext i32 %302 to i64
  %304 = getelementptr inbounds [12 x i8], ptr %28, i64 0, i64 %303
  store i8 %301, ptr %304, align 1, !tbaa !18
  %305 = load i32, ptr %31, align 4, !tbaa !9
  %306 = add i32 %305, 1
  store i32 %306, ptr %31, align 4, !tbaa !9
  %307 = load i32, ptr %31, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %51) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %50) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %52) #5
  %308 = load i32, ptr %31, align 4, !tbaa !9
  %309 = zext i32 %308 to i64
  %310 = getelementptr inbounds [12 x i8], ptr %30, i64 0, i64 %309
  %311 = load i8, ptr %310, align 1, !tbaa !18
  store i8 %311, ptr %52, align 1, !tbaa !18
  call void @llvm.lifetime.start.p0(i64 1, ptr %53) #5
  %312 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 1
  %313 = load ptr, ptr %312, align 8, !tbaa !15
  %314 = load i32, ptr %31, align 4, !tbaa !9
  %315 = zext i32 %314 to i64
  %316 = getelementptr inbounds i8, ptr %313, i64 %315
  %317 = load i8, ptr %316, align 1, !tbaa !18
  store i8 %317, ptr %53, align 1, !tbaa !18
  %318 = load i8, ptr %52, align 1, !tbaa !18
  %319 = zext i8 %318 to i32
  %320 = load i8, ptr %53, align 1, !tbaa !18
  %321 = zext i8 %320 to i32
  %322 = xor i32 %319, %321
  %323 = trunc i32 %322 to i8
  %324 = load i32, ptr %31, align 4, !tbaa !9
  %325 = zext i32 %324 to i64
  %326 = getelementptr inbounds [12 x i8], ptr %28, i64 0, i64 %325
  store i8 %323, ptr %326, align 1, !tbaa !18
  %327 = load i32, ptr %31, align 4, !tbaa !9
  %328 = add i32 %327, 1
  store i32 %328, ptr %31, align 4, !tbaa !9
  %329 = load i32, ptr %31, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %53) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %52) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %54) #5
  %330 = load i32, ptr %31, align 4, !tbaa !9
  %331 = zext i32 %330 to i64
  %332 = getelementptr inbounds [12 x i8], ptr %30, i64 0, i64 %331
  %333 = load i8, ptr %332, align 1, !tbaa !18
  store i8 %333, ptr %54, align 1, !tbaa !18
  call void @llvm.lifetime.start.p0(i64 1, ptr %55) #5
  %334 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 1
  %335 = load ptr, ptr %334, align 8, !tbaa !15
  %336 = load i32, ptr %31, align 4, !tbaa !9
  %337 = zext i32 %336 to i64
  %338 = getelementptr inbounds i8, ptr %335, i64 %337
  %339 = load i8, ptr %338, align 1, !tbaa !18
  store i8 %339, ptr %55, align 1, !tbaa !18
  %340 = load i8, ptr %54, align 1, !tbaa !18
  %341 = zext i8 %340 to i32
  %342 = load i8, ptr %55, align 1, !tbaa !18
  %343 = zext i8 %342 to i32
  %344 = xor i32 %341, %343
  %345 = trunc i32 %344 to i8
  %346 = load i32, ptr %31, align 4, !tbaa !9
  %347 = zext i32 %346 to i64
  %348 = getelementptr inbounds [12 x i8], ptr %28, i64 0, i64 %347
  store i8 %345, ptr %348, align 1, !tbaa !18
  %349 = load i32, ptr %31, align 4, !tbaa !9
  %350 = add i32 %349, 1
  store i32 %350, ptr %31, align 4, !tbaa !9
  %351 = load i32, ptr %31, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 1, ptr %55) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %54) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %31) #5
  br label %352

352:                                              ; preds = %87
  br label %353

353:                                              ; preds = %352
  call void @llvm.lifetime.start.p0(i64 8, ptr %56) #5
  %354 = load ptr, ptr %21, align 8, !tbaa !5
  store ptr %354, ptr %56, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %57) #5
  %355 = load ptr, ptr %21, align 8, !tbaa !5
  %356 = load i32, ptr %18, align 4, !tbaa !9
  %357 = zext i32 %356 to i64
  %358 = getelementptr inbounds i8, ptr %355, i64 %357
  store ptr %358, ptr %57, align 8, !tbaa !5
  %359 = load ptr, ptr %56, align 8, !tbaa !5
  %360 = load ptr, ptr %57, align 8, !tbaa !5
  %361 = load ptr, ptr %19, align 8, !tbaa !5
  %362 = load i32, ptr %18, align 4, !tbaa !9
  %363 = load ptr, ptr %17, align 8, !tbaa !5
  %364 = load i32, ptr %16, align 4, !tbaa !9
  %365 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 0
  %366 = load ptr, ptr %365, align 8, !tbaa !13
  %367 = getelementptr inbounds [12 x i8], ptr %28, i64 0, i64 0
  call void @Hacl_AEAD_Chacha20Poly1305_Simd128_encrypt(ptr noundef %359, ptr noundef %360, ptr noundef %361, i32 noundef %362, ptr noundef %363, i32 noundef %364, ptr noundef %366, ptr noundef %367)
  call void @llvm.lifetime.start.p0(i64 8, ptr %58) #5
  %368 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 2
  %369 = load ptr, ptr %368, align 8, !tbaa !16
  %370 = getelementptr inbounds i64, ptr %369, i64 0
  %371 = load i64, ptr %370, align 8, !tbaa !11
  store i64 %371, ptr %58, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %59) #5
  %372 = load i64, ptr %58, align 8, !tbaa !11
  %373 = icmp eq i64 %372, -1
  br i1 %373, label %374, label %375

374:                                              ; preds = %353
  store i32 1, ptr %59, align 4, !tbaa !9
  br label %382

375:                                              ; preds = %353
  call void @llvm.lifetime.start.p0(i64 8, ptr %60) #5
  %376 = load i64, ptr %58, align 8, !tbaa !11
  %377 = add i64 %376, 1
  store i64 %377, ptr %60, align 8, !tbaa !11
  %378 = load i64, ptr %60, align 8, !tbaa !11
  %379 = getelementptr inbounds %struct.Hacl_Impl_HPKE_context_s_s, ptr %26, i32 0, i32 2
  %380 = load ptr, ptr %379, align 8, !tbaa !16
  %381 = getelementptr inbounds i64, ptr %380, i64 0
  store i64 %378, ptr %381, align 8, !tbaa !11
  store i32 0, ptr %59, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %60) #5
  br label %382

382:                                              ; preds = %375, %374
  call void @llvm.lifetime.start.p0(i64 4, ptr %61) #5
  %383 = load i32, ptr %59, align 4, !tbaa !9
  store i32 %383, ptr %61, align 4, !tbaa !9
  %384 = load i32, ptr %61, align 4, !tbaa !9
  store i32 %384, ptr %11, align 4
  store i32 1, ptr %62, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %61) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %59) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %58) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %57) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %56) #5
  call void @llvm.lifetime.end.p0(i64 12, ptr %30) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %29) #5
  call void @llvm.lifetime.end.p0(i64 12, ptr %28) #5
  br label %386

385:                                              ; preds = %10
  store i32 1, ptr %11, align 4
  store i32 1, ptr %62, align 4
  br label %386

386:                                              ; preds = %385, %382
  call void @llvm.lifetime.end.p0(i64 4, ptr %27) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %26) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %25) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %24) #5
  call void @llvm.lifetime.end.p0(i64 12, ptr %23) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %22) #5
  %387 = load i32, ptr %11, align 4
  ret i32 %387
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @store64(ptr noundef, i64 noundef) #3

; Function Attrs: inlinehint nounwind uwtable
declare hidden i64 @__bswap_64(i64 noundef) #3

declare void @Hacl_AEAD_Chacha20Poly1305_Simd128_encrypt(ptr noundef, ptr noundef, ptr noundef, i32 noundef, ptr noundef, i32 noundef, ptr noundef, ptr noundef) #4

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { inlinehint 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 #4 = { "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 #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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!14, !6, i64 0}
!14 = !{!"Hacl_Impl_HPKE_context_s_s", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24}
!15 = !{!14, !6, i64 8}
!16 = !{!14, !6, i64 16}
!17 = !{!14, !6, i64 24}
!18 = !{!7, !7, i64 0}


; 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"

%struct.Hacl_Impl_HPKE_context_s_s = type { ptr, ptr, ptr, ptr }

; Function Attrs: nounwind uwtable
declare dso_local i32 @Hacl_HPKE_Curve51_CP128_SHA256_setupBaseS(ptr noundef, ptr noundef byval(%struct.Hacl_Impl_HPKE_context_s_s) align 8, ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #0

; 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 nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #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: nounwind uwtable
define dso_local range(i32 0, 2) i32 @Hacl_HPKE_Curve51_CP128_SHA256_sealBase(ptr noundef %0, ptr noundef %1, i32 noundef %2, ptr noundef %3, i32 noundef %4, ptr noundef %5, i32 noundef %6, ptr noundef %7, ptr noundef %8, ptr noundef %9) local_unnamed_addr #0 {
  %11 = alloca [32 x i8], align 16
  %12 = alloca [12 x i8], align 1
  %13 = alloca i64, align 8
  %14 = alloca [32 x i8], align 16
  %15 = alloca %struct.Hacl_Impl_HPKE_context_s_s, align 8
  %16 = alloca [12 x i8], align 8
  %17 = alloca [12 x i8], align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %11) #5
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(32) %11, i8 0, i64 32, i1 false)
  call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %12) #5
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 1 dereferenceable(12) %12, i8 0, i64 12, i1 false)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %13) #5
  store i64 0, ptr %13, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %14) #5
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 16 dereferenceable(32) %14, i8 0, i64 32, i1 false)
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %15) #5
  store ptr %11, ptr %15, align 8, !tbaa !9
  %18 = getelementptr inbounds i8, ptr %15, i64 8
  store ptr %12, ptr %18, align 8, !tbaa !12
  %19 = getelementptr inbounds i8, ptr %15, i64 16
  store ptr %13, ptr %19, align 8, !tbaa !13
  %20 = getelementptr inbounds i8, ptr %15, i64 24
  store ptr %14, ptr %20, align 8, !tbaa !14
  %21 = call i32 @Hacl_HPKE_Curve51_CP128_SHA256_setupBaseS(ptr noundef %8, ptr noundef nonnull byval(%struct.Hacl_Impl_HPKE_context_s_s) align 8 %15, ptr noundef %0, ptr noundef %1, i32 noundef %2, ptr noundef %3)
  %22 = icmp eq i32 %21, 0
  br i1 %22, label %23, label %47

23:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %16) #5
  %24 = load ptr, ptr %19, align 8, !tbaa !13
  %25 = load i64, ptr %24, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %17) #5
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(12) %17, i8 0, i64 12, i1 false)
  %26 = getelementptr inbounds i8, ptr %17, i64 4
  %27 = call i64 @__bswap_64(i64 noundef %25)
  call void @store64(ptr noundef nonnull %26, i64 noundef %27)
  %28 = load ptr, ptr %18, align 8, !tbaa !12
  %29 = load <8 x i8>, ptr %17, align 8, !tbaa !15
  %30 = load <8 x i8>, ptr %28, align 1, !tbaa !15
  %31 = xor <8 x i8> %30, %29
  store <8 x i8> %31, ptr %16, align 8, !tbaa !15
  %32 = getelementptr inbounds i8, ptr %17, i64 8
  %33 = getelementptr inbounds i8, ptr %28, i64 8
  %34 = getelementptr inbounds i8, ptr %16, i64 8
  %35 = load <4 x i8>, ptr %32, align 8, !tbaa !15
  %36 = load <4 x i8>, ptr %33, align 1, !tbaa !15
  %37 = xor <4 x i8> %36, %35
  store <4 x i8> %37, ptr %34, align 8, !tbaa !15
  %38 = zext i32 %6 to i64
  %39 = getelementptr inbounds i8, ptr %9, i64 %38
  %40 = load ptr, ptr %15, align 8, !tbaa !9
  call void @Hacl_AEAD_Chacha20Poly1305_Simd128_encrypt(ptr noundef %9, ptr noundef %39, ptr noundef %7, i32 noundef %6, ptr noundef %5, i32 noundef %4, ptr noundef %40, ptr noundef nonnull %16) #5
  %41 = load ptr, ptr %19, align 8, !tbaa !13
  %42 = load i64, ptr %41, align 8, !tbaa !5
  %43 = icmp eq i64 %42, -1
  br i1 %43, label %46, label %44

44:                                               ; preds = %23
  %45 = add nuw i64 %42, 1
  store i64 %45, ptr %41, align 8, !tbaa !5
  br label %46

46:                                               ; preds = %23, %44
  %.0105 = phi i32 [ 0, %44 ], [ 1, %23 ]
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %17) #5
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %16) #5
  br label %47

47:                                               ; preds = %10, %46
  %.0 = phi i32 [ %.0105, %46 ], [ 1, %10 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %15) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %14) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %13) #5
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %12) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %11) #5
  ret i32 %.0
}

; Function Attrs: inlinehint nounwind uwtable
declare hidden void @store64(ptr noundef, i64 noundef) local_unnamed_addr #3

; Function Attrs: inlinehint nounwind uwtable
declare hidden i64 @__bswap_64(i64 noundef) local_unnamed_addr #3

declare void @Hacl_AEAD_Chacha20Poly1305_Simd128_encrypt(ptr noundef, ptr noundef, ptr noundef, i32 noundef, ptr noundef, i32 noundef, ptr noundef, ptr noundef) local_unnamed_addr #4

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { inlinehint 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 #4 = { "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 #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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"Hacl_Impl_HPKE_context_s_s", !11, i64 0, !11, i64 8, !11, i64 16, !11, i64 24}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!10, !11, i64 8}
!13 = !{!10, !11, i64 16}
!14 = !{!10, !11, i64 24}
!15 = !{!7, !7, i64 0}


; Effective O3 passes: DSEPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,ReassociatePass,SLPVectorizerPass,SROAPass,SimplifyCFGPass