#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <cuda.h>

unsigned int getmax(unsigned int *, unsigned int);

int main(int argc, char *argv[])
{
    unsigned int size = 0;  // The size of the array
    unsigned int i;  // loop index
    unsigned int * numbers; //pointer to the array
    
    if(argc !=2)
    {
        printf("usage: maxgpu num\n");
        printf("num = size of the array\n");
        exit(1);
    }
   
    size = atol(argv[1]);

    numbers = (unsigned int *)malloc(size * sizeof(unsigned int));
    if( !numbers )
    {
        printf("Unable to allocate mem for an array of size %u\n", size);
        exit(1);
    }    

    srand(time(NULL)); // setting a seed for the random number generator
    // Fill-up the array with random numbers from 0 to size-1 
    for( i = 0; i < size; i++)
        numbers[i] = rand()  % size;    
   
    printf(" The maximum number in the array is: %u\n", getmax(numbers, size));

    free(numbers);
    exit(0);
}

// kernel
__global__ void getmaxcu(unsigned int num[], unsigned int size, unsigned int offset) {
    __shared__ unsigned int block_num[1000];
    unsigned int t = threadIdx.x + (blockIdx.x * 1000);
    unsigned int boundary;

    if (offset != 1)
        offset = 1000;

    if (t < size) {
        block_num[threadIdx.x] = num[t*offset];

        boundary = 1000;
        if (t > (size - 1 - (size % 1000)))
            boundary = size % 1000;
        
        __syncthreads();

        while (boundary > 1) {
            if ((threadIdx.x < boundary/2) && (block_num[threadIdx.x] < block_num[threadIdx.x + (boundary+1)/2]))
                block_num[threadIdx.x] = block_num[threadIdx.x + (boundary+1)/2];

            boundary = (boundary+1)/2;

            __syncthreads();
        }

        if (threadIdx.x == 0)
            num[t] = block_num[0];
    }
}

/*
   input: pointer to an array of long int
          number of elements in the array
   output: the maximum number of the array
*/
unsigned int getmax(unsigned int num[], unsigned int size)
{
    unsigned int i;

    unsigned int * device_num;
    cudaMalloc(&device_num, size * sizeof(unsigned int));
    cudaMemcpy(device_num, num, size * sizeof(unsigned int), cudaMemcpyHostToDevice);

    unsigned int threads_per_block = 1000;
    unsigned int tot_blocks = ceil((double)size/(threads_per_block));
    for (i = 0; i < ceil((double)log10(size)/log10(1000)); i++)
        getmaxcu<<<tot_blocks, threads_per_block>>>(device_num, (int)size*(1000/pow(1000, (i+1))), i+1);

    cudaMemcpy(num, device_num, size * sizeof(unsigned int), cudaMemcpyDeviceToHost);

    cudaFree(device_num);

    return num[0];
}
	.file	"tmpxft_00320876_00000000-6_maxgpu.cudafe1.cpp"
	.text
#APP

#NO_APP
	.type	_ZL26__cudaUnregisterBinaryUtilv, @function
_ZL26__cudaUnregisterBinaryUtilv:
.LFB2032:
	.cfi_startproc
	endbr64
	movq	_ZL20__cudaFatCubinHandle(%rip), %rdi
	jmp	__cudaUnregisterFatBinary@PLT
	.cfi_endproc
.LFE2032:
	.size	_ZL26__cudaUnregisterBinaryUtilv, .-_ZL26__cudaUnregisterBinaryUtilv
	.globl	_Z29__device_stub__Z8getmaxcuPjjjPjjj
	.type	_Z29__device_stub__Z8getmaxcuPjjjPjjj, @function
_Z29__device_stub__Z8getmaxcuPjjjPjjj:
.LFB2054:
	.cfi_startproc
	endbr64
	subq	$120, %rsp
	.cfi_def_cfa_offset 128
	movq	%rdi, 8(%rsp)
	leaq	24(%rsp), %rcx
	leaq	32(%rsp), %rdi
	movl	%esi, 4(%rsp)
	leaq	44(%rsp), %rsi
	movl	%edx, (%rsp)
	leaq	16(%rsp), %rdx
	movq	%fs:40, %rax
	movq	%rax, 104(%rsp)
	xorl	%eax, %eax
	leaq	8(%rsp), %rax
	movl	$1, 40(%rsp)
	movq	%rax, 80(%rsp)
	leaq	4(%rsp), %rax
	movq	%rax, 88(%rsp)
	movq	%rsp, %rax
	movq	%rax, 96(%rsp)
	movabsq	$4294967297, %rax
	movq	%rax, 32(%rsp)
	movq	%rax, 44(%rsp)
	movl	$1, 52(%rsp)
	call	__cudaPopCallConfiguration@PLT
	testl	%eax, %eax
	jne	.L2
	pushq	24(%rsp)
	.cfi_def_cfa_offset 136
	leaq	_Z8getmaxcuPjjj(%rip), %rdi
	pushq	24(%rsp)
	.cfi_def_cfa_offset 144
	movq	60(%rsp), %rcx
	movl	68(%rsp), %r8d
	movq	48(%rsp), %rsi
	movl	56(%rsp), %edx
	leaq	96(%rsp), %r9
	call	cudaLaunchKernel@PLT
	popq	%rax
	.cfi_def_cfa_offset 136
	popq	%rdx
	.cfi_def_cfa_offset 128
.L2:
	movq	104(%rsp), %rax
	subq	%fs:40, %rax
	je	.L4
	call	__stack_chk_fail@PLT
.L4:
	addq	$120, %rsp
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE2054:
	.size	_Z29__device_stub__Z8getmaxcuPjjjPjjj, .-_Z29__device_stub__Z8getmaxcuPjjjPjjj
	.globl	_Z8getmaxcuPjjj
	.type	_Z8getmaxcuPjjj, @function
_Z8getmaxcuPjjj:
.LFB2055:
	.cfi_startproc
	endbr64
	jmp	_Z29__device_stub__Z8getmaxcuPjjjPjjj
	.cfi_endproc
.LFE2055:
	.size	_Z8getmaxcuPjjj, .-_Z8getmaxcuPjjj
	.globl	_Z6getmaxPjj
	.type	_Z6getmaxPjj, @function
_Z6getmaxPjj:
.LFB2028:
	.cfi_startproc
	endbr64
	pushq	%r15
	.cfi_def_cfa_offset 16
	.cfi_offset 15, -16
	pushq	%r14
	.cfi_def_cfa_offset 24
	.cfi_offset 14, -24
	pushq	%r13
	.cfi_def_cfa_offset 32
	.cfi_offset 13, -32
	pushq	%r12
	.cfi_def_cfa_offset 40
	.cfi_offset 12, -40
	pushq	%rbp
	.cfi_def_cfa_offset 48
	.cfi_offset 6, -48
	movl	%esi, %ebp
	pushq	%rbx
	.cfi_def_cfa_offset 56
	.cfi_offset 3, -56
	leaq	0(,%rbp,4), %r13
	movq	%rdi, %rbx
	movq	%rbp, %r12
	movq	%r13, %rsi
	subq	$56, %rsp
	.cfi_def_cfa_offset 112
	movq	%fs:40, %rax
	movq	%rax, 40(%rsp)
	xorl	%eax, %eax
	leaq	8(%rsp), %rdi
	call	cudaMalloc@PLT
	movq	8(%rsp), %rdi
	movq	%r13, %rdx
	movq	%rbx, %rsi
	movl	$1, %ecx
	call	cudaMemcpy@PLT
	cvtsi2sdq	%rbp, %xmm3
	xorl	%ebp, %ebp
	movaps	%xmm3, %xmm0
	movq	%xmm3, %r15
	divsd	.LC0(%rip), %xmm0
	call	ceil@PLT
	cvttsd2siq	%xmm0, %r14
.L11:
	movq	%r15, %xmm0
	call	log10@PLT
	divsd	.LC1(%rip), %xmm0
	call	ceil@PLT
	movl	%ebp, %eax
	movaps	%xmm0, %xmm1
	cvtsi2sdq	%rax, %xmm0
	comisd	%xmm0, %xmm1
	jbe	.L20
	movl	%r14d, 16(%rsp)
	movl	$536871037, %edx
	xorl	%r9d, %r9d
	xorl	%r8d, %r8d
	movabsq	$4294967297, %rax
	salq	$3, %rdx
	movl	$1, %ecx
	incl	%ebp
	movq	%rax, 20(%rsp)
	movq	16(%rsp), %rdi
	movl	24(%rsp), %esi
	call	__cudaPushCallConfiguration@PLT
	testl	%eax, %eax
	jne	.L11
	movl	%ebp, %eax
	movsd	.LC0(%rip), %xmm0
	cvtsi2sdq	%rax, %xmm1
	call	pow@PLT
	movsd	.LC0(%rip), %xmm1
	movq	8(%rsp), %rdi
	movl	%ebp, %edx
	movaps	%xmm0, %xmm2
	cvtsi2sdl	%r12d, %xmm0
	divsd	%xmm2, %xmm1
	mulsd	%xmm1, %xmm0
	cvttsd2siq	%xmm0, %rsi
	call	_Z29__device_stub__Z8getmaxcuPjjjPjjj
	jmp	.L11
.L20:
	movq	8(%rsp), %rsi
	movl	$2, %ecx
	movq	%r13, %rdx
	movq	%rbx, %rdi
	call	cudaMemcpy@PLT
	movq	8(%rsp), %rdi
	call	cudaFree@PLT
	movl	(%rbx), %eax
	movq	40(%rsp), %rdx
	subq	%fs:40, %rdx
	je	.L18
	call	__stack_chk_fail@PLT
.L18:
	addq	$56, %rsp
	.cfi_def_cfa_offset 56
	popq	%rbx
	.cfi_def_cfa_offset 48
	popq	%rbp
	.cfi_def_cfa_offset 40
	popq	%r12
	.cfi_def_cfa_offset 32
	popq	%r13
	.cfi_def_cfa_offset 24
	popq	%r14
	.cfi_def_cfa_offset 16
	popq	%r15
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE2028:
	.size	_Z6getmaxPjj, .-_Z6getmaxPjj
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC2:
	.string	"usage: maxgpu num\n"
.LC3:
	.string	"num = size of the array\n"
.LC4:
	.string	"Unable to allocate mem for an array of size %u\n"
.LC5:
	.string	" The maximum number in the array is: %u\n"
	.section	.text.startup,"ax",@progbits
	.globl	main
	.type	main, @function
main:
.LFB2027:
	.cfi_startproc
	endbr64
	pushq	%r12
	.cfi_def_cfa_offset 16
	.cfi_offset 12, -16
	pushq	%rbp
	.cfi_def_cfa_offset 24
	.cfi_offset 6, -24
	pushq	%rbx
	.cfi_def_cfa_offset 32
	.cfi_offset 3, -32
	cmpl	$2, %edi
	je	.L22
	leaq	.LC2(%rip), %rsi
	movl	$2, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	leaq	.LC3(%rip), %rsi
	movl	$2, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	jmp	.L27
.L22:
	movq	8(%rsi), %rdi
	call	atol@PLT
	movl	%eax, %ebp
	movl	%eax, %eax
	leaq	0(,%rax,4), %rdi
	call	malloc@PLT
	movq	%rax, %rbx
	testq	%rax, %rax
	jne	.L23
	movl	%ebp, %edx
	leaq	.LC4(%rip), %rsi
	movl	$2, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
.L27:
	movl	$1, %edi
.L28:
	call	exit@PLT
.L23:
	xorl	%edi, %edi
	xorl	%r12d, %r12d
	call	time@PLT
	movl	%eax, %edi
	call	srand@PLT
.L24:
	cmpl	%ebp, %r12d
	jnb	.L29
	call	rand@PLT
	xorl	%edx, %edx
	divl	%ebp
	movl	%edx, (%rbx,%r12,4)
	incq	%r12
	jmp	.L24
.L29:
	movl	%ebp, %esi
	movq	%rbx, %rdi
	call	_Z6getmaxPjj
	leaq	.LC5(%rip), %rsi
	movl	$2, %edi
	movl	%eax, %edx
	xorl	%eax, %eax
	call	__printf_chk@PLT
	movq	%rbx, %rdi
	call	free@PLT
	xorl	%edi, %edi
	jmp	.L28
	.cfi_endproc
.LFE2027:
	.size	main, .-main
	.section	.rodata.str1.1
.LC6:
	.string	"_Z8getmaxcuPjjj"
	.section	.text.startup
	.type	_ZL24__sti____cudaRegisterAllv, @function
_ZL24__sti____cudaRegisterAllv:
.LFB2057:
	.cfi_startproc
	endbr64
	pushq	%rax
	.cfi_def_cfa_offset 16
	leaq	_ZL15__fatDeviceText(%rip), %rdi
	call	__cudaRegisterFatBinary@PLT
	pushq	$0
	.cfi_def_cfa_offset 24
	xorl	%r9d, %r9d
	orl	$-1, %r8d
	pushq	$0
	.cfi_def_cfa_offset 32
	leaq	.LC6(%rip), %rdx
	movq	%rax, %rdi
	leaq	_Z8getmaxcuPjjj(%rip), %rsi
	pushq	$0
	.cfi_def_cfa_offset 40
	movq	%rdx, %rcx
	pushq	$0
	.cfi_def_cfa_offset 48
	movq	%rax, _ZL20__cudaFatCubinHandle(%rip)
	call	__cudaRegisterFunction@PLT
	movq	_ZL20__cudaFatCubinHandle(%rip), %rdi
	addq	$32, %rsp
	.cfi_def_cfa_offset 16
	call	__cudaRegisterFatBinaryEnd@PLT
	leaq	_ZL26__cudaUnregisterBinaryUtilv(%rip), %rdi
	popq	%rdx
	.cfi_def_cfa_offset 8
	jmp	atexit@PLT
	.cfi_endproc
.LFE2057:
	.size	_ZL24__sti____cudaRegisterAllv, .-_ZL24__sti____cudaRegisterAllv
	.section	.init_array,"aw"
	.align 8
	.quad	_ZL24__sti____cudaRegisterAllv
	.section	.nvFatBinSegment,"aw"
	.align 8
	.type	_ZL15__fatDeviceText, @object
	.size	_ZL15__fatDeviceText, 24
_ZL15__fatDeviceText:
	.long	1180844977
	.long	1
	.quad	fatbinData
	.quad	0
	.local	_ZL20__cudaFatCubinHandle
	.comm	_ZL20__cudaFatCubinHandle,8,8
	.section	.rodata.cst8,"aM",@progbits,8
	.align 8
.LC0:
	.long	0
	.long	1083129856
	.align 8
.LC1:
	.long	0
	.long	1074266112
	.ident	"GCC: (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <hip/hip_runtime.h>

unsigned int getmax(unsigned int *, unsigned int);

int main(int argc, char *argv[])
{
    unsigned int size = 0;  // The size of the array
    unsigned int i;  // loop index
    unsigned int * numbers; //pointer to the array
    
    if(argc !=2)
    {
        printf("usage: maxgpu num\n");
        printf("num = size of the array\n");
        exit(1);
    }
   
    size = atol(argv[1]);

    numbers = (unsigned int *)malloc(size * sizeof(unsigned int));
    if( !numbers )
    {
        printf("Unable to allocate mem for an array of size %u\n", size);
        exit(1);
    }    

    srand(time(NULL)); // setting a seed for the random number generator
    // Fill-up the array with random numbers from 0 to size-1 
    for( i = 0; i < size; i++)
        numbers[i] = rand()  % size;    
   
    printf(" The maximum number in the array is: %u\n", getmax(numbers, size));

    free(numbers);
    exit(0);
}

// kernel
__global__ void getmaxcu(unsigned int num[], unsigned int size, unsigned int offset) {
    __shared__ unsigned int block_num[1000];
    unsigned int t = threadIdx.x + (blockIdx.x * 1000);
    unsigned int boundary;

    if (offset != 1)
        offset = 1000;

    if (t < size) {
        block_num[threadIdx.x] = num[t*offset];

        boundary = 1000;
        if (t > (size - 1 - (size % 1000)))
            boundary = size % 1000;
        
        __syncthreads();

        while (boundary > 1) {
            if ((threadIdx.x < boundary/2) && (block_num[threadIdx.x] < block_num[threadIdx.x + (boundary+1)/2]))
                block_num[threadIdx.x] = block_num[threadIdx.x + (boundary+1)/2];

            boundary = (boundary+1)/2;

            __syncthreads();
        }

        if (threadIdx.x == 0)
            num[t] = block_num[0];
    }
}

/*
   input: pointer to an array of long int
          number of elements in the array
   output: the maximum number of the array
*/
unsigned int getmax(unsigned int num[], unsigned int size)
{
    unsigned int i;

    unsigned int * device_num;
    hipMalloc(&device_num, size * sizeof(unsigned int));
    hipMemcpy(device_num, num, size * sizeof(unsigned int), hipMemcpyHostToDevice);

    unsigned int threads_per_block = 1000;
    unsigned int tot_blocks = ceil((double)size/(threads_per_block));
    for (i = 0; i < ceil((double)log10(size)/log10(1000)); i++)
        getmaxcu<<<tot_blocks, threads_per_block>>>(device_num, (int)size*(1000/pow(1000, (i+1))), i+1);

    hipMemcpy(num, device_num, size * sizeof(unsigned int), hipMemcpyDeviceToHost);

    hipFree(device_num);

    return num[0];
}
	.text
	.file	"maxgpu.hip"
	.globl	main                            # -- Begin function main
	.type	main,@function
main:                                   # @main
	.cfi_startproc
# %bb.0:
	pushq	%r15
	.cfi_def_cfa_offset 16
	pushq	%r14
	.cfi_def_cfa_offset 24
	pushq	%r12
	.cfi_def_cfa_offset 32
	pushq	%rbx
	.cfi_def_cfa_offset 40
	pushq	%rax
	.cfi_def_cfa_offset 48
	.cfi_offset %rbx, -40
	.cfi_offset %r12, -32
	.cfi_offset %r14, -24
	.cfi_offset %r15, -16
	cmpl	$2, %edi
	jne	.LBB0_4
# %bb.1:
	movq	8(%rsi), %rdi
	callq	atol
	movq	%rax, %rbx
	movl	%ebx, %edi
	shlq	$2, %rdi
	callq	malloc
	testq	%rax, %rax
	jne	.LBB0_5
# %bb.2:
	movl	$.L.str.2, %edi
	movl	%ebx, %esi
	xorl	%eax, %eax
	callq	printf
	jmp	.LBB0_3
.LBB0_4:
	movl	$.Lstr, %edi
	callq	puts@PLT
	movl	$.Lstr.1, %edi
	callq	puts@PLT
.LBB0_3:
	movl	$1, %edi
	callq	exit
.LBB0_5:
	movq	%rax, %r14
	xorl	%edi, %edi
	callq	time
	movl	%eax, %edi
	callq	srand
	testl	%ebx, %ebx
	je	.LBB0_8
# %bb.6:                                # %.lr.ph.preheader
	movl	%ebx, %r15d
	xorl	%r12d, %r12d
.LBB0_7:                                # %.lr.ph
                                        # =>This Inner Loop Header: Depth=1
	callq	rand
	xorl	%edx, %edx
	divl	%ebx
	movl	%edx, (%r14,%r12,4)
	incq	%r12
	cmpq	%r12, %r15
	jne	.LBB0_7
.LBB0_8:                                # %._crit_edge
	movq	%r14, %rdi
	movl	%ebx, %esi
	callq	_Z6getmaxPjj
	movl	$.L.str.3, %edi
	movl	%eax, %esi
	xorl	%eax, %eax
	callq	printf
	movq	%r14, %rdi
	callq	free
	xorl	%edi, %edi
	callq	exit
.Lfunc_end0:
	.size	main, .Lfunc_end0-main
	.cfi_endproc
                                        # -- End function
	.section	.rodata.cst8,"aM",@progbits,8
	.p2align	3, 0x0                          # -- Begin function _Z6getmaxPjj
.LCPI1_0:
	.quad	0x4008000000000000              # double 3
.LCPI1_1:
	.quad	0x408f400000000000              # double 1000
	.text
	.globl	_Z6getmaxPjj
	.type	_Z6getmaxPjj,@function
_Z6getmaxPjj:                           # @_Z6getmaxPjj
	.cfi_startproc
# %bb.0:
	pushq	%rbp
	.cfi_def_cfa_offset 16
	pushq	%r15
	.cfi_def_cfa_offset 24
	pushq	%r14
	.cfi_def_cfa_offset 32
	pushq	%r13
	.cfi_def_cfa_offset 40
	pushq	%r12
	.cfi_def_cfa_offset 48
	pushq	%rbx
	.cfi_def_cfa_offset 56
	subq	$40, %rsp
	.cfi_def_cfa_offset 96
	.cfi_offset %rbx, -56
	.cfi_offset %r12, -48
	.cfi_offset %r13, -40
	.cfi_offset %r14, -32
	.cfi_offset %r15, -24
	.cfi_offset %rbp, -16
	movl	%esi, %ebp
	movq	%rdi, %rbx
	movl	%esi, %r12d
	leaq	(,%r12,4), %r14
	leaq	8(%rsp), %r15
	movq	%r15, %rdi
	movq	%r14, %rsi
	callq	hipMalloc
	movq	(%r15), %rdi
	movq	%rbx, %rsi
	movq	%r14, %rdx
	movl	$1, %ecx
	callq	hipMemcpy
	cvtsi2sd	%r12, %xmm0
	movsd	%xmm0, 16(%rsp)                 # 8-byte Spill
	callq	log10
	divsd	.LCPI1_0(%rip), %xmm0
	callq	ceil@PLT
	xorpd	%xmm1, %xmm1
	ucomisd	%xmm1, %xmm0
	jbe	.LBB1_6
# %bb.1:                                # %.lr.ph
	movabsq	$4294967296, %r15               # imm = 0x100000000
	movsd	16(%rsp), %xmm0                 # 8-byte Reload
                                        # xmm0 = mem[0],zero
	divsd	.LCPI1_1(%rip), %xmm0
	callq	ceil@PLT
	cvttsd2si	%xmm0, %rax
	movl	%eax, %r12d
	btsq	$32, %r12
	xorps	%xmm0, %xmm0
	cvtsi2sd	%ebp, %xmm0
	movsd	%xmm0, 32(%rsp)                 # 8-byte Spill
	xorl	%r13d, %r13d
	addq	$1000, %r15                     # imm = 0x3E8
.LBB1_2:                                # =>This Inner Loop Header: Depth=1
	movq	%r12, %rdi
	movl	$1, %esi
	movq	%r15, %rdx
	movl	$1, %ecx
	xorl	%r8d, %r8d
	xorl	%r9d, %r9d
	callq	__hipPushCallConfiguration
	testl	%eax, %eax
	je	.LBB1_4
# %bb.3:                                # %._crit_edge21
                                        #   in Loop: Header=BB1_2 Depth=1
	incl	%r13d
	xorps	%xmm0, %xmm0
	cvtsi2sd	%r13, %xmm0
	movsd	%xmm0, 24(%rsp)                 # 8-byte Spill
	jmp	.LBB1_5
.LBB1_4:                                #   in Loop: Header=BB1_2 Depth=1
	movq	8(%rsp), %rbp
	incl	%r13d
	xorps	%xmm1, %xmm1
	cvtsi2sd	%r13, %xmm1
	movsd	.LCPI1_1(%rip), %xmm0           # xmm0 = mem[0],zero
	movsd	%xmm1, 24(%rsp)                 # 8-byte Spill
	callq	pow
	movsd	.LCPI1_1(%rip), %xmm1           # xmm1 = mem[0],zero
	divsd	%xmm0, %xmm1
	mulsd	32(%rsp), %xmm1                 # 8-byte Folded Reload
	cvttsd2si	%xmm1, %rsi
	movq	%rbp, %rdi
                                        # kill: def $esi killed $esi killed $rsi
	movl	%r13d, %edx
	callq	_Z23__device_stub__getmaxcuPjjj
.LBB1_5:                                #   in Loop: Header=BB1_2 Depth=1
	movsd	16(%rsp), %xmm0                 # 8-byte Reload
                                        # xmm0 = mem[0],zero
	callq	log10
	divsd	.LCPI1_0(%rip), %xmm0
	callq	ceil@PLT
	ucomisd	24(%rsp), %xmm0                 # 8-byte Folded Reload
	ja	.LBB1_2
.LBB1_6:                                # %._crit_edge
	movq	8(%rsp), %rsi
	movq	%rbx, %rdi
	movq	%r14, %rdx
	movl	$2, %ecx
	callq	hipMemcpy
	movq	8(%rsp), %rdi
	callq	hipFree
	movl	(%rbx), %eax
	addq	$40, %rsp
	.cfi_def_cfa_offset 56
	popq	%rbx
	.cfi_def_cfa_offset 48
	popq	%r12
	.cfi_def_cfa_offset 40
	popq	%r13
	.cfi_def_cfa_offset 32
	popq	%r14
	.cfi_def_cfa_offset 24
	popq	%r15
	.cfi_def_cfa_offset 16
	popq	%rbp
	.cfi_def_cfa_offset 8
	retq
.Lfunc_end1:
	.size	_Z6getmaxPjj, .Lfunc_end1-_Z6getmaxPjj
	.cfi_endproc
                                        # -- End function
	.globl	_Z23__device_stub__getmaxcuPjjj # -- Begin function _Z23__device_stub__getmaxcuPjjj
	.type	_Z23__device_stub__getmaxcuPjjj,@function
_Z23__device_stub__getmaxcuPjjj:        # @_Z23__device_stub__getmaxcuPjjj
	.cfi_startproc
# %bb.0:
	pushq	%r15
	.cfi_def_cfa_offset 16
	pushq	%r14
	.cfi_def_cfa_offset 24
	pushq	%r13
	.cfi_def_cfa_offset 32
	pushq	%r12
	.cfi_def_cfa_offset 40
	pushq	%rbx
	.cfi_def_cfa_offset 48
	subq	$96, %rsp
	.cfi_def_cfa_offset 144
	.cfi_offset %rbx, -48
	.cfi_offset %r12, -40
	.cfi_offset %r13, -32
	.cfi_offset %r14, -24
	.cfi_offset %r15, -16
	leaq	24(%rsp), %rax
	movq	%rdi, (%rax)
	leaq	4(%rsp), %rcx
	movl	%esi, (%rcx)
	movq	%rsp, %rsi
	movl	%edx, (%rsi)
	leaq	64(%rsp), %rbx
	movq	%rax, (%rbx)
	movq	%rcx, 8(%rbx)
	movq	%rsi, 16(%rbx)
	leaq	48(%rsp), %r14
	leaq	32(%rsp), %r15
	leaq	16(%rsp), %r12
	leaq	8(%rsp), %r13
	movq	%r14, %rdi
	movq	%r15, %rsi
	movq	%r12, %rdx
	movq	%r13, %rcx
	callq	__hipPopCallConfiguration
	movq	(%r14), %rsi
	movl	8(%r14), %edx
	movq	(%r15), %rcx
	movl	8(%r15), %r8d
	movl	$_Z8getmaxcuPjjj, %edi
	movq	%rbx, %r9
	pushq	(%r13)
	.cfi_adjust_cfa_offset 8
	pushq	(%r12)
	.cfi_adjust_cfa_offset 8
	callq	hipLaunchKernel
	addq	$112, %rsp
	.cfi_adjust_cfa_offset -112
	popq	%rbx
	.cfi_def_cfa_offset 40
	popq	%r12
	.cfi_def_cfa_offset 32
	popq	%r13
	.cfi_def_cfa_offset 24
	popq	%r14
	.cfi_def_cfa_offset 16
	popq	%r15
	.cfi_def_cfa_offset 8
	retq
.Lfunc_end2:
	.size	_Z23__device_stub__getmaxcuPjjj, .Lfunc_end2-_Z23__device_stub__getmaxcuPjjj
	.cfi_endproc
                                        # -- End function
	.p2align	4, 0x90                         # -- Begin function __hip_module_ctor
	.type	__hip_module_ctor,@function
__hip_module_ctor:                      # @__hip_module_ctor
	.cfi_startproc
# %bb.0:
	subq	$40, %rsp
	.cfi_def_cfa_offset 48
	movq	__hip_gpubin_handle(%rip), %rdi
	testq	%rdi, %rdi
	jne	.LBB3_2
# %bb.1:
	movl	$__hip_fatbin_wrapper, %edi
	callq	__hipRegisterFatBinary
	movq	%rax, %rdi
	movq	%rax, __hip_gpubin_handle(%rip)
.LBB3_2:
	xorps	%xmm0, %xmm0
	movups	%xmm0, 16(%rsp)
	movups	%xmm0, (%rsp)
	movl	$_Z8getmaxcuPjjj, %esi
	movl	$.L__unnamed_1, %edx
	movl	$.L__unnamed_1, %ecx
	movl	$-1, %r8d
	xorl	%r9d, %r9d
	callq	__hipRegisterFunction
	movl	$__hip_module_dtor, %edi
	addq	$40, %rsp
	.cfi_def_cfa_offset 8
	jmp	atexit                          # TAILCALL
.Lfunc_end3:
	.size	__hip_module_ctor, .Lfunc_end3-__hip_module_ctor
	.cfi_endproc
                                        # -- End function
	.p2align	4, 0x90                         # -- Begin function __hip_module_dtor
	.type	__hip_module_dtor,@function
__hip_module_dtor:                      # @__hip_module_dtor
	.cfi_startproc
# %bb.0:
	movq	__hip_gpubin_handle(%rip), %rdi
	testq	%rdi, %rdi
	je	.LBB4_2
# %bb.1:
	pushq	%rax
	.cfi_def_cfa_offset 16
	callq	__hipUnregisterFatBinary
	movq	$0, __hip_gpubin_handle(%rip)
	addq	$8, %rsp
	.cfi_def_cfa_offset 8
.LBB4_2:
	retq
.Lfunc_end4:
	.size	__hip_module_dtor, .Lfunc_end4-__hip_module_dtor
	.cfi_endproc
                                        # -- End function
	.type	.L.str.2,@object                # @.str.2
	.section	.rodata.str1.1,"aMS",@progbits,1
.L.str.2:
	.asciz	"Unable to allocate mem for an array of size %u\n"
	.size	.L.str.2, 48

	.type	.L.str.3,@object                # @.str.3
.L.str.3:
	.asciz	" The maximum number in the array is: %u\n"
	.size	.L.str.3, 41

	.type	_Z8getmaxcuPjjj,@object         # @_Z8getmaxcuPjjj
	.section	.rodata,"a",@progbits
	.globl	_Z8getmaxcuPjjj
	.p2align	3, 0x0
_Z8getmaxcuPjjj:
	.quad	_Z23__device_stub__getmaxcuPjjj
	.size	_Z8getmaxcuPjjj, 8

	.type	.L__unnamed_1,@object           # @0
	.section	.rodata.str1.1,"aMS",@progbits,1
.L__unnamed_1:
	.asciz	"_Z8getmaxcuPjjj"
	.size	.L__unnamed_1, 16

	.type	__hip_fatbin_wrapper,@object    # @__hip_fatbin_wrapper
	.section	.hipFatBinSegment,"a",@progbits
	.p2align	3, 0x0
__hip_fatbin_wrapper:
	.long	1212764230                      # 0x48495046
	.long	1                               # 0x1
	.quad	__hip_fatbin
	.quad	0
	.size	__hip_fatbin_wrapper, 24

	.type	__hip_gpubin_handle,@object     # @__hip_gpubin_handle
	.local	__hip_gpubin_handle
	.comm	__hip_gpubin_handle,8,8
	.section	.init_array,"aw",@init_array
	.p2align	3, 0x0
	.quad	__hip_module_ctor
	.type	__hip_cuid_,@object             # @__hip_cuid_
	.bss
	.globl	__hip_cuid_
__hip_cuid_:
	.byte	0                               # 0x0
	.size	__hip_cuid_, 1

	.type	.Lstr,@object                   # @str
	.section	.rodata.str1.1,"aMS",@progbits,1
.Lstr:
	.asciz	"usage: maxgpu num"
	.size	.Lstr, 18

	.type	.Lstr.1,@object                 # @str.1
.Lstr.1:
	.asciz	"num = size of the array"
	.size	.Lstr.1, 24

	.ident	"AMD clang version 18.0.0git (https://github.com/RadeonOpenCompute/llvm-project roc-6.3.2 25012 e5bf7e55c91490b07c49d8960fa7983d864936c4)"
	.section	".note.GNU-stack","",@progbits
	.addrsig
	.addrsig_sym _Z23__device_stub__getmaxcuPjjj
	.addrsig_sym __hip_module_ctor
	.addrsig_sym __hip_module_dtor
	.addrsig_sym _Z8getmaxcuPjjj
	.addrsig_sym __hip_fatbin
	.addrsig_sym __hip_fatbin_wrapper
	.addrsig_sym __hip_cuid_

	.text
	.amdgcn_target "amdgcn-amd-amdhsa--gfx1100"
	.protected	_Z8getmaxcuPjjj         ; -- Begin function _Z8getmaxcuPjjj
	.globl	_Z8getmaxcuPjjj
	.p2align	8
	.type	_Z8getmaxcuPjjj,@function
_Z8getmaxcuPjjj:                        ; @_Z8getmaxcuPjjj
; %bb.0:
	s_load_b64 s[2:3], s[0:1], 0x8
	v_mad_u64_u32 v[1:2], null, 0x3e8, s15, v[0:1]
	s_mov_b32 s4, exec_lo
	s_waitcnt lgkmcnt(0)
	s_delay_alu instid0(VALU_DEP_1)
	v_cmpx_gt_u32_e64 s2, v1
	s_cbranch_execz .LBB0_12
; %bb.1:
	s_cmp_eq_u32 s3, 1
	s_load_b64 s[0:1], s[0:1], 0x0
	s_cselect_b32 s3, 1, 0x3e8
	s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_1) | instid1(SALU_CYCLE_1)
	v_mul_lo_u32 v2, s3, v1
	s_mul_hi_u32 s3, s2, 0x10624dd3
	s_lshr_b32 s3, s3, 6
	s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | instid1(SALU_CYCLE_1)
	s_mulk_i32 s3, 0x3e8
	s_sub_i32 s3, s2, s3
	v_mov_b32_e32 v3, 0
	s_delay_alu instid0(VALU_DEP_1) | instskip(SKIP_1) | instid1(VALU_DEP_1)
	v_lshlrev_b64 v[2:3], 2, v[2:3]
	s_waitcnt lgkmcnt(0)
	v_add_co_u32 v2, vcc_lo, s0, v2
	s_delay_alu instid0(VALU_DEP_2) | instskip(SKIP_3) | instid1(SALU_CYCLE_1)
	v_add_co_ci_u32_e32 v3, vcc_lo, s1, v3, vcc_lo
	global_load_b32 v4, v[2:3], off
	v_mov_b32_e32 v2, s3
	s_not_b32 s3, s3
	s_add_i32 s3, s3, s2
	s_mov_b32 s2, exec_lo
	v_cmp_lt_u32_e32 vcc_lo, s3, v1
	v_dual_cndmask_b32 v3, 0x3e8, v2 :: v_dual_lshlrev_b32 v2, 2, v0
	s_waitcnt vmcnt(0)
	ds_store_b32 v2, v4
	s_waitcnt lgkmcnt(0)
	s_barrier
	buffer_gl0_inv
	v_cmpx_lt_u32_e32 1, v3
	s_cbranch_execz .LBB0_10
; %bb.2:                                ; %.lr.ph.preheader
	s_mov_b32 s3, 0
.LBB0_3:                                ; %.lr.ph
                                        ; =>This Inner Loop Header: Depth=1
	v_lshrrev_b32_e32 v4, 1, v3
	v_add_nc_u32_e32 v5, 1, v3
	s_delay_alu instid0(VALU_DEP_2) | instskip(NEXT) | instid1(VALU_DEP_2)
	v_cmp_ge_u32_e32 vcc_lo, v0, v4
	v_lshrrev_b32_e32 v4, 1, v5
	s_and_saveexec_b32 s4, vcc_lo
	s_delay_alu instid0(SALU_CYCLE_1)
	s_xor_b32 s4, exec_lo, s4
; %bb.4:                                ; %.lr.ph._crit_edge
                                        ;   in Loop: Header=BB0_3 Depth=1
	v_lshrrev_b32_e32 v4, 1, v5
; %bb.5:                                ; %Flow30
                                        ;   in Loop: Header=BB0_3 Depth=1
	s_and_not1_saveexec_b32 s4, s4
	s_cbranch_execz .LBB0_9
; %bb.6:                                ;   in Loop: Header=BB0_3 Depth=1
	s_delay_alu instid0(VALU_DEP_1)
	v_lshl_add_u32 v5, v4, 2, v2
	s_mov_b32 s5, exec_lo
	ds_load_b32 v6, v2
	ds_load_b32 v5, v5
	s_waitcnt lgkmcnt(0)
	v_cmpx_lt_u32_e64 v6, v5
	s_cbranch_execz .LBB0_8
; %bb.7:                                ;   in Loop: Header=BB0_3 Depth=1
	ds_store_b32 v2, v5
.LBB0_8:                                ; %Flow29
                                        ;   in Loop: Header=BB0_3 Depth=1
	s_or_b32 exec_lo, exec_lo, s5
.LBB0_9:                                ;   in Loop: Header=BB0_3 Depth=1
	s_delay_alu instid0(SALU_CYCLE_1)
	s_or_b32 exec_lo, exec_lo, s4
	v_cmp_gt_u32_e32 vcc_lo, 3, v3
	v_mov_b32_e32 v3, v4
	s_waitcnt lgkmcnt(0)
	s_barrier
	buffer_gl0_inv
	s_or_b32 s3, vcc_lo, s3
	s_delay_alu instid0(SALU_CYCLE_1)
	s_and_not1_b32 exec_lo, exec_lo, s3
	s_cbranch_execnz .LBB0_3
.LBB0_10:                               ; %Flow32
	s_or_b32 exec_lo, exec_lo, s2
	v_cmp_eq_u32_e32 vcc_lo, 0, v0
	s_and_b32 exec_lo, exec_lo, vcc_lo
	s_cbranch_execz .LBB0_12
; %bb.11:
	v_mov_b32_e32 v2, 0
	ds_load_b32 v3, v2
	v_lshlrev_b64 v[0:1], 2, v[1:2]
	s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_2)
	v_add_co_u32 v0, vcc_lo, s0, v0
	v_add_co_ci_u32_e32 v1, vcc_lo, s1, v1, vcc_lo
	s_waitcnt lgkmcnt(0)
	global_store_b32 v[0:1], v3, off
.LBB0_12:
	s_nop 0
	s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
	s_endpgm
	.section	.rodata,"a",@progbits
	.p2align	6, 0x0
	.amdhsa_kernel _Z8getmaxcuPjjj
		.amdhsa_group_segment_fixed_size 4000
		.amdhsa_private_segment_fixed_size 0
		.amdhsa_kernarg_size 16
		.amdhsa_user_sgpr_count 15
		.amdhsa_user_sgpr_dispatch_ptr 0
		.amdhsa_user_sgpr_queue_ptr 0
		.amdhsa_user_sgpr_kernarg_segment_ptr 1
		.amdhsa_user_sgpr_dispatch_id 0
		.amdhsa_user_sgpr_private_segment_size 0
		.amdhsa_wavefront_size32 1
		.amdhsa_uses_dynamic_stack 0
		.amdhsa_enable_private_segment 0
		.amdhsa_system_sgpr_workgroup_id_x 1
		.amdhsa_system_sgpr_workgroup_id_y 0
		.amdhsa_system_sgpr_workgroup_id_z 0
		.amdhsa_system_sgpr_workgroup_info 0
		.amdhsa_system_vgpr_workitem_id 0
		.amdhsa_next_free_vgpr 7
		.amdhsa_next_free_sgpr 16
		.amdhsa_float_round_mode_32 0
		.amdhsa_float_round_mode_16_64 0
		.amdhsa_float_denorm_mode_32 3
		.amdhsa_float_denorm_mode_16_64 3
		.amdhsa_dx10_clamp 1
		.amdhsa_ieee_mode 1
		.amdhsa_fp16_overflow 0
		.amdhsa_workgroup_processor_mode 1
		.amdhsa_memory_ordered 1
		.amdhsa_forward_progress 0
		.amdhsa_shared_vgpr_count 0
		.amdhsa_exception_fp_ieee_invalid_op 0
		.amdhsa_exception_fp_denorm_src 0
		.amdhsa_exception_fp_ieee_div_zero 0
		.amdhsa_exception_fp_ieee_overflow 0
		.amdhsa_exception_fp_ieee_underflow 0
		.amdhsa_exception_fp_ieee_inexact 0
		.amdhsa_exception_int_div_zero 0
	.end_amdhsa_kernel
	.text
.Lfunc_end0:
	.size	_Z8getmaxcuPjjj, .Lfunc_end0-_Z8getmaxcuPjjj
                                        ; -- End function
	.section	.AMDGPU.csdata,"",@progbits
; Kernel info:
; codeLenInByte = 444
; NumSgprs: 18
; NumVgprs: 7
; ScratchSize: 0
; MemoryBound: 0
; FloatMode: 240
; IeeeMode: 1
; LDSByteSize: 4000 bytes/workgroup (compile time only)
; SGPRBlocks: 2
; VGPRBlocks: 0
; NumSGPRsForWavesPerEU: 18
; NumVGPRsForWavesPerEU: 7
; Occupancy: 16
; WaveLimiterHint : 0
; COMPUTE_PGM_RSRC2:SCRATCH_EN: 0
; COMPUTE_PGM_RSRC2:USER_SGPR: 15
; COMPUTE_PGM_RSRC2:TRAP_HANDLER: 0
; COMPUTE_PGM_RSRC2:TGID_X_EN: 1
; COMPUTE_PGM_RSRC2:TGID_Y_EN: 0
; COMPUTE_PGM_RSRC2:TGID_Z_EN: 0
; COMPUTE_PGM_RSRC2:TIDIG_COMP_CNT: 0
	.text
	.p2alignl 7, 3214868480
	.fill 96, 4, 3214868480
	.type	__hip_cuid_,@object             ; @__hip_cuid_
	.section	.bss,"aw",@nobits
	.globl	__hip_cuid_
__hip_cuid_:
	.byte	0                               ; 0x0
	.size	__hip_cuid_, 1

	.ident	"AMD clang version 18.0.0git (https://github.com/RadeonOpenCompute/llvm-project roc-6.3.2 25012 e5bf7e55c91490b07c49d8960fa7983d864936c4)"
	.section	".note.GNU-stack","",@progbits
	.addrsig
	.addrsig_sym __hip_cuid_
	.amdgpu_metadata
---
amdhsa.kernels:
  - .args:
      - .address_space:  global
        .offset:         0
        .size:           8
        .value_kind:     global_buffer
      - .offset:         8
        .size:           4
        .value_kind:     by_value
      - .offset:         12
        .size:           4
        .value_kind:     by_value
    .group_segment_fixed_size: 4000
    .kernarg_segment_align: 8
    .kernarg_segment_size: 16
    .language:       OpenCL C
    .language_version:
      - 2
      - 0
    .max_flat_workgroup_size: 1024
    .name:           _Z8getmaxcuPjjj
    .private_segment_fixed_size: 0
    .sgpr_count:     18
    .sgpr_spill_count: 0
    .symbol:         _Z8getmaxcuPjjj.kd
    .uniform_work_group_size: 1
    .uses_dynamic_stack: false
    .vgpr_count:     7
    .vgpr_spill_count: 0
    .wavefront_size: 32
    .workgroup_processor_mode: 1
amdhsa.target:   amdgcn-amd-amdhsa--gfx1100
amdhsa.version:
  - 1
  - 2
...

	.end_amdgpu_metadata
