__attribute__((no)) int main1(float *__restrict__ pa) {
  int i;
  float pb[256] __attribute__((__aligned__(16))) = {0,  3,  6,  9,  12, 15, 18,
                                                    21, 24, 27, 30, 33, 36, 39,
                                                    42, 45, 48, 51, 54, 57};
  float pc[256] __attribute__((__aligned__(16))) = {
      0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19};
  for (i = 0; i < 256; i++) {
    pa[i] = pb[i] * pc[i];
  }
  return 0;
}


x86 assembly (clang, -O0):
<main1>:
push   %rbp
mov    %rsp,%rbp
sub    $0x810,%rsp
mov    %rdi,-0x8(%rbp)
lea    -0x410(%rbp),%rdi
lea    0xed3(%rip),%rsi
mov    $0x400,%edx
call   1030 <memcpy@plt>
lea    -0x810(%rbp),%rdi
lea    0x12bb(%rip),%rsi
mov    $0x400,%edx
call   1030 <memcpy@plt>
movl   $0x0,-0xc(%rbp)
cmpl   $0x100,-0xc(%rbp)
jge    1198 <main1+0x88>
movslq -0xc(%rbp),%rax
movss  -0x410(%rbp,%rax,4),%xmm0
ff ff
movslq -0xc(%rbp),%rax
mulss  -0x810(%rbp,%rax,4),%xmm0
ff ff
mov    -0x8(%rbp),%rax
movslq -0xc(%rbp),%rcx
movss  %xmm0,(%rax,%rcx,4)
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    1156 <main1+0x46>
xor    %eax,%eax
add    $0x810,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main1>:
xor    %eax,%eax
lea    0xef7(%rip),%rcx
lea    0x12f0(%rip),%rdx
movaps (%rcx,%rax,4),%xmm0
movaps 0x10(%rcx,%rax,4),%xmm1
movaps 0x20(%rcx,%rax,4),%xmm2
movaps 0x30(%rcx,%rax,4),%xmm3
mulps  (%rdx,%rax,4),%xmm0
mulps  0x10(%rdx,%rax,4),%xmm1
movups %xmm0,(%rdi,%rax,4)
movups %xmm1,0x10(%rdi,%rax,4)
mulps  0x20(%rdx,%rax,4),%xmm2
mulps  0x30(%rdx,%rax,4),%xmm3
movups %xmm2,0x20(%rdi,%rax,4)
movups %xmm3,0x30(%rdi,%rax,4)
add    $0x10,%rax
cmp    $0x100,%rax
jne    1110 <main1+0x10>
xor    %eax,%eax
ret

LLVM IR (-O0):
@__const.main1.pb = <{ [20 x float], [236 x float] }> <{ [20 x float] [float 0.000000e+00, float 3.000000e+00, float 6.000000e+00, float 9.000000e+00, float 1.200000e+01, float 1.500000e+01, float 1.800000e+01, float 2.100000e+01, float 2.400000e+01, float 2.700000e+01, float 3.000000e+01, float 3.300000e+01, float 3.600000e+01, float 3.900000e+01, float 4.200000e+01, float 4.500000e+01, float 4.800000e+01, float 5.100000e+01, float 5.400000e+01, float 5.700000e+01], [236 x float] zeroinitializer }>
@__const.main1.pc = <{ [20 x float], [236 x float] }> <{ [20 x float] [float 0.000000e+00, float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00, float 5.000000e+00, float 6.000000e+00, float 7.000000e+00, float 8.000000e+00, float 9.000000e+00, float 1.000000e+01, float 1.100000e+01, float 1.200000e+01, float 1.300000e+01, float 1.400000e+01, float 1.500000e+01, float 1.600000e+01, float 1.700000e+01, float 1.800000e+01, float 1.900000e+01], [236 x float] zeroinitializer }>
define i32 @main1(float* noalias %0) {
%2 = alloca float*
%3 = alloca i32
%4 = alloca [256 x float]
%5 = alloca [256 x float]
store float* %0, float** %2
%6 = bitcast [256 x float]* %4 to i8*
%7 = bitcast [256 x float]* %5 to i8*
store i32 0, i32* %3
br label %8
8: ; preds = %25, %1
%9 = load i32, i32* %3
%10 = icmp slt i32 %9, 256
br i1 %10, label %11, label %28
11: ; preds = %8
%12 = load i32, i32* %3
%13 = sext i32 %12 to i64
%14 = getelementptr inbounds [256 x float], [256 x float]* %4, i64 0, i64 %13
%15 = load float, float* %14
%16 = load i32, i32* %3
%17 = sext i32 %16 to i64
%18 = getelementptr inbounds [256 x float], [256 x float]* %5, i64 0, i64 %17
%19 = load float, float* %18
%20 = fmul float %15, %19
%21 = load float*, float** %2
%22 = load i32, i32* %3
%23 = sext i32 %22 to i64
%24 = getelementptr inbounds float, float* %21, i64 %23
store float %20, float* %24
br label %25
25: ; preds = %11
%26 = load i32, i32* %3
%27 = add nsw i32 %26, 1
store i32 %27, i32* %3
br label %8
28: ; preds = %8
ret i32 0
}

LLVM IR (-O2):
@__const.main1.pb = <{ [20 x float], [236 x float] }> <{ [20 x float] [float 0.000000e+00, float 3.000000e+00, float 6.000000e+00, float 9.000000e+00, float 1.200000e+01, float 1.500000e+01, float 1.800000e+01, float 2.100000e+01, float 2.400000e+01, float 2.700000e+01, float 3.000000e+01, float 3.300000e+01, float 3.600000e+01, float 3.900000e+01, float 4.200000e+01, float 4.500000e+01, float 4.800000e+01, float 5.100000e+01, float 5.400000e+01, float 5.700000e+01], [236 x float] zeroinitializer }>
@__const.main1.pc = <{ [20 x float], [236 x float] }> <{ [20 x float] [float 0.000000e+00, float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00, float 5.000000e+00, float 6.000000e+00, float 7.000000e+00, float 8.000000e+00, float 9.000000e+00, float 1.000000e+01, float 1.100000e+01, float 1.200000e+01, float 1.300000e+01, float 1.400000e+01, float 1.500000e+01, float 1.600000e+01, float 1.700000e+01, float 1.800000e+01, float 1.900000e+01], [236 x float] zeroinitializer }>
define i32 @main1(float* noalias nocapture writeonly %0) {
br label %2
2: ; preds = %2, %1
%3 = phi i64 [ 0, %1 ], [ %41, %2 ]
%4 = getelementptr inbounds [256 x float], [256 x float]* bitcast (<{ [20 x float], [236 x float] }>* @__const.main1.pb to [256 x float]*), i64 0, i64 %3
%5 = bitcast float* %4 to <4 x float>*
%6 = load <4 x float>, <4 x float>* %5
%7 = getelementptr inbounds float, float* %4, i64 4
%8 = bitcast float* %7 to <4 x float>*
%9 = load <4 x float>, <4 x float>* %8
%10 = getelementptr inbounds [256 x float], [256 x float]* bitcast (<{ [20 x float], [236 x float] }>* @__const.main1.pc to [256 x float]*), i64 0, i64 %3
%11 = bitcast float* %10 to <4 x float>*
%12 = load <4 x float>, <4 x float>* %11
%13 = getelementptr inbounds float, float* %10, i64 4
%14 = bitcast float* %13 to <4 x float>*
%15 = load <4 x float>, <4 x float>* %14
%16 = fmul <4 x float> %6, %12
%17 = fmul <4 x float> %9, %15
%18 = getelementptr inbounds float, float* %0, i64 %3
%19 = bitcast float* %18 to <4 x float>*
store <4 x float> %16, <4 x float>* %19
%20 = getelementptr inbounds float, float* %18, i64 4
%21 = bitcast float* %20 to <4 x float>*
store <4 x float> %17, <4 x float>* %21
%22 = or i64 %3, 8
%23 = getelementptr inbounds [256 x float], [256 x float]* bitcast (<{ [20 x float], [236 x float] }>* @__const.main1.pb to [256 x float]*), i64 0, i64 %22
%24 = bitcast float* %23 to <4 x float>*
%25 = load <4 x float>, <4 x float>* %24
%26 = getelementptr inbounds float, float* %23, i64 4
%27 = bitcast float* %26 to <4 x float>*
%28 = load <4 x float>, <4 x float>* %27
%29 = getelementptr inbounds [256 x float], [256 x float]* bitcast (<{ [20 x float], [236 x float] }>* @__const.main1.pc to [256 x float]*), i64 0, i64 %22
%30 = bitcast float* %29 to <4 x float>*
%31 = load <4 x float>, <4 x float>* %30
%32 = getelementptr inbounds float, float* %29, i64 4
%33 = bitcast float* %32 to <4 x float>*
%34 = load <4 x float>, <4 x float>* %33
%35 = fmul <4 x float> %25, %31
%36 = fmul <4 x float> %28, %34
%37 = getelementptr inbounds float, float* %0, i64 %22
%38 = bitcast float* %37 to <4 x float>*
store <4 x float> %35, <4 x float>* %38
%39 = getelementptr inbounds float, float* %37, i64 4
%40 = bitcast float* %39 to <4 x float>*
store <4 x float> %36, <4 x float>* %40
%41 = add nuw nsw i64 %3, 16
%42 = icmp eq i64 %41, 256
br i1 %42, label %43, label %2
43: ; preds = %2
ret i32 0
}