#define NULL ((void *)0)
typedef unsigned long size_t; // Customize by platform.
typedef long intptr_t;
typedef unsigned long uintptr_t;
typedef long scalar_t__; // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */

/* Type definitions */

/* Variables and functions */
scalar_t__ isnan(float);
scalar_t__ signbit(float);
float __hsail_max_f32(float a, float b) {
  if (isnan(a))
    return b;
  else if (isnan(b))
    return a;
  else if (a == 0.0f && b == 0.0f && signbit(a))
    return b;
  else if (a < b)
    return b;
  else
    return a;
}


x86 assembly (clang, -O0):
<__hsail_max_f32>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movss  %xmm0,-0x8(%rbp)
movss  %xmm1,-0xc(%rbp)
movss  -0x8(%rbp),%xmm0
call   1030 <isnan@plt>
cmp    $0x0,%rax
je     1155 <__hsail_max_f32+0x35>
movss  -0xc(%rbp),%xmm0
movss  %xmm0,-0x4(%rbp)
jmp    11f5 <__hsail_max_f32+0xd5>
movss  -0xc(%rbp),%xmm0
call   1030 <isnan@plt>
cmp    $0x0,%rax
je     1178 <__hsail_max_f32+0x58>
movss  -0x8(%rbp),%xmm0
movss  %xmm0,-0x4(%rbp)
jmp    11f5 <__hsail_max_f32+0xd5>
movss  -0x8(%rbp),%xmm0
xorps  %xmm1,%xmm1
ucomiss %xmm1,%xmm0
jne    11c9 <__hsail_max_f32+0xa9>
jp     11c9 <__hsail_max_f32+0xa9>
movss  -0xc(%rbp),%xmm0
xorps  %xmm1,%xmm1
ucomiss %xmm1,%xmm0
jne    11c9 <__hsail_max_f32+0xa9>
jp     11c9 <__hsail_max_f32+0xa9>
movss  -0x8(%rbp),%xmm0
call   1040 <signbit@plt>
cmp    $0x0,%rax
je     11c9 <__hsail_max_f32+0xa9>
movss  -0xc(%rbp),%xmm0
movss  %xmm0,-0x4(%rbp)
jmp    11f5 <__hsail_max_f32+0xd5>
movss  -0x8(%rbp),%xmm1
movss  -0xc(%rbp),%xmm0
ucomiss %xmm1,%xmm0
jbe    11eb <__hsail_max_f32+0xcb>
movss  -0xc(%rbp),%xmm0
movss  %xmm0,-0x4(%rbp)
jmp    11f5 <__hsail_max_f32+0xd5>
movss  -0x8(%rbp),%xmm0
movss  %xmm0,-0x4(%rbp)
movss  -0x4(%rbp),%xmm0
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<__hsail_max_f32>:
push   %rax
movss  %xmm1,(%rsp)
movss  %xmm0,0x4(%rsp)
call   1030 <isnan@plt>
test   %rax,%rax
je     113d <__hsail_max_f32+0x1d>
movss  (%rsp),%xmm1
jmp    1189 <__hsail_max_f32+0x69>
movss  (%rsp),%xmm0
call   1030 <isnan@plt>
test   %rax,%rax
je     1154 <__hsail_max_f32+0x34>
movss  0x4(%rsp),%xmm1
jmp    1189 <__hsail_max_f32+0x69>
xorps  %xmm2,%xmm2
movss  0x4(%rsp),%xmm0
ucomiss %xmm2,%xmm0
movss  (%rsp),%xmm1
jne    1185 <__hsail_max_f32+0x65>
jp     1185 <__hsail_max_f32+0x65>
ucomiss %xmm2,%xmm1
jne    1185 <__hsail_max_f32+0x65>
jp     1185 <__hsail_max_f32+0x65>
call   1040 <signbit@plt>
movss  0x4(%rsp),%xmm0
movss  (%rsp),%xmm1
test   %rax,%rax
jne    1189 <__hsail_max_f32+0x69>
maxss  %xmm0,%xmm1
movaps %xmm1,%xmm0
pop    %rax
ret

LLVM IR (-O0):
define float @__hsail_max_f32(float %0, float %1) {
%3 = alloca float
%4 = alloca float
%5 = alloca float
store float %0, float* %4
store float %1, float* %5
%6 = load float, float* %4
%7 = call i64 @isnan(float %6)
%8 = icmp ne i64 %7, 0
br i1 %8, label %9, label %11
9: ; preds = %2
%10 = load float, float* %5
store float %10, float* %3
br label %37
11: ; preds = %2
%12 = load float, float* %5
%13 = call i64 @isnan(float %12)
%14 = icmp ne i64 %13, 0
br i1 %14, label %15, label %17
15: ; preds = %11
%16 = load float, float* %4
store float %16, float* %3
br label %37
17: ; preds = %11
%18 = load float, float* %4
%19 = fcmp oeq float %18, 0.000000e+00
br i1 %19, label %20, label %29
20: ; preds = %17
%21 = load float, float* %5
%22 = fcmp oeq float %21, 0.000000e+00
br i1 %22, label %23, label %29
23: ; preds = %20
%24 = load float, float* %4
%25 = call i64 @signbit(float %24)
%26 = icmp ne i64 %25, 0
br i1 %26, label %27, label %29
27: ; preds = %23
%28 = load float, float* %5
store float %28, float* %3
br label %37
29: ; preds = %23, %20, %17
%30 = load float, float* %4
%31 = load float, float* %5
%32 = fcmp olt float %30, %31
br i1 %32, label %33, label %35
33: ; preds = %29
%34 = load float, float* %5
store float %34, float* %3
br label %37
35: ; preds = %29
%36 = load float, float* %4
store float %36, float* %3
br label %37
37: ; preds = %35, %33, %27, %15, %9
%38 = load float, float* %3
ret float %38
}

LLVM IR (-O2):
define float @__hsail_max_f32(float %0, float %1) {
%3 = tail call i64 @isnan(float %0)
%4 = icmp eq i64 %3, 0
br i1 %4, label %5, label %18
5: ; preds = %2
%6 = tail call i64 @isnan(float %1)
%7 = icmp eq i64 %6, 0
br i1 %7, label %8, label %18
8: ; preds = %5
%9 = fcmp oeq float %0, 0.000000e+00
%10 = fcmp oeq float %1, 0.000000e+00
%11 = and i1 %9, %10
br i1 %11, label %12, label %15
12: ; preds = %8
%13 = tail call i64 @signbit(float %0)
%14 = icmp eq i64 %13, 0
br i1 %14, label %15, label %18
15: ; preds = %12, %8
%16 = fcmp olt float %0, %1
%17 = select i1 %16, float %1, float %0
br label %18
18: ; preds = %15, %12, %5, %2
%19 = phi float [ %1, %2 ], [ %0, %5 ], [ %1, %12 ], [ %17, %15 ]
ret float %19
}