#include <stdio.h>
#include <stdlib.h>
#include <cuda_runtime.h>
#include <iostream>

__global__ void sharedMem_reduce_kernel(float *d_out, float *d_in) {
  // shared_data is allocated in the kernel call: 3rd argument
  extern __shared__ float shared_data[];

  int myId = threadIdx.x + blockDim.x * blockIdx.x;
  int thrId = threadIdx.x;

  // load shared memory from global memory
  shared_data[thrId] = d_in[myId];
  __syncthreads();

  // do reduction in SHARED memory
  for (unsigned int s = blockDim.x / 2; s > 0; s >>= 1) {
    if (thrId < s) {
      shared_data[thrId] += shared_data[thrId + s];
    }
    __syncthreads();
  }

  // thread 0 writes result of this block from shared to global memory
  if (thrId == 0) {
    d_out[blockIdx.x] = shared_data[0];
  }
}

void reduce(float *d_out, float *d_intermediate, float *d_in, int size) {
  // assumption 1: size is not greater than maxThreadsPerBlock ** 2
  // assumption 2: size is a multiple of maxThreadsPerBlock

  const int maxThreadsPerBlock = 1024;
  int threads = maxThreadsPerBlock;
  int blocks = size / maxThreadsPerBlock;

  sharedMem_reduce_kernel<<<blocks, threads, threads * sizeof(float)>>>(d_intermediate, d_in);
  
  // now we are down to one block, reduce it
  threads = blocks;  // each block wrote one number into d_intermediate
  blocks = 1;

  sharedMem_reduce_kernel<<<blocks, threads, threads * sizeof(float)>>>(d_out, d_intermediate);
}

int main(int argc, char* argv[]) {

  // --- Checking whether there is a device --- //
  int deviceCount;
  cudaGetDeviceCount(&deviceCount);
  if (deviceCount == 0) {
    std::cerr << "No GPUs found" << std::endl;
    exit(EXIT_FAILURE);
  }
  // --- Properties of device --- //
  int dev = 0;
  cudaSetDevice(dev);

  cudaDeviceProp deviceProps;
  if (cudaGetDeviceProperties(&deviceProps, dev) == 0) {
    std::cout << "Using device " << dev << std::endl;
    std::cout << deviceProps.name << std::endl;
    std::cout << "Global memory: " << deviceProps.totalGlobalMem << std::endl;
    std::cout << "Comoute v: " << static_cast<int>(deviceProps.major) << "." <<
        static_cast<int>(deviceProps.minor)<< std::endl;
    std::cout << "Clock: " << static_cast<int>(deviceProps.clockRate) << std::endl;
  }

  // --- Actual task - Reducing a sequence of numbers wit op "+" --- //
  const int ARRAY_SIZE = 1 << 20;
  const int ARRAY_BYTES = ARRAY_SIZE * sizeof(float);

  // generate input array on host
  float h_in[ARRAY_SIZE];
  float sum = 0.0f;
  for (int i = 0; i < ARRAY_SIZE; i++) {
    h_in[i] = -1.0f + static_cast<float>(random())/(static_cast<float>(RAND_MAX)/2.0f);
    sum += h_in[i];
  }

  // declare device pointers
  float *d_in, *d_intermediate, *d_out;

  // allocate device memory
  cudaMalloc((void **) &d_in, ARRAY_BYTES);
  cudaMalloc((void **) &d_intermediate, ARRAY_BYTES); // overallocated
  cudaMalloc((void **) &d_out, sizeof(float));

  // transfer input array to device
  cudaMemcpy(d_in, h_in, ARRAY_BYTES, cudaMemcpyHostToDevice);

  cudaEvent_t start, stop;
  cudaEventCreate(&start);
  cudaEventCreate(&stop);

  cudaEventRecord(start, 0);
  reduce(d_out, d_intermediate, d_in, ARRAY_SIZE);
  cudaEventRecord(stop, 0);

  // calculate elapsed time
  cudaEventSynchronize(stop);
  float elapsed;
  cudaEventElapsedTime(&elapsed, start, stop);

  // copy back the result to host
  float h_out;
  cudaMemcpy(&h_out, d_out, sizeof(float), cudaMemcpyDeviceToHost);

  std::cout << "Time elapsed: " << elapsed << std::endl;
  std::cout << "Host result: " << sum << ", device result: " << h_out << std::endl;

  cudaFree(d_in);
  cudaFree(d_intermediate);
  cudaFree(d_out);
  return 0;
}

	.file	"tmpxft_0036048b_00000000-6_reduce.cudafe1.cpp"
	.text
#APP
	.globl _ZSt21ios_base_library_initv

#NO_APP
	.type	_ZL26__cudaUnregisterBinaryUtilv, @function
_ZL26__cudaUnregisterBinaryUtilv:
.LFB3639:
	.cfi_startproc
	endbr64
	movq	_ZL20__cudaFatCubinHandle(%rip), %rdi
	jmp	__cudaUnregisterFatBinary@PLT
	.cfi_endproc
.LFE3639:
	.size	_ZL26__cudaUnregisterBinaryUtilv, .-_ZL26__cudaUnregisterBinaryUtilv
	.align 2
	.type	_ZNSolsEPFRSoS_E.isra.0, @function
_ZNSolsEPFRSoS_E.isra.0:
.LFB4295:
	.cfi_startproc
	jmp	*%rsi
	.cfi_endproc
.LFE4295:
	.size	_ZNSolsEPFRSoS_E.isra.0, .-_ZNSolsEPFRSoS_E.isra.0
	.globl	_Z45__device_stub__Z23sharedMem_reduce_kernelPfS_PfS_
	.type	_Z45__device_stub__Z23sharedMem_reduce_kernelPfS_PfS_, @function
_Z45__device_stub__Z23sharedMem_reduce_kernelPfS_PfS_:
.LFB3661:
	.cfi_startproc
	endbr64
	subq	$120, %rsp
	.cfi_def_cfa_offset 128
	movq	%rdi, 8(%rsp)
	leaq	32(%rsp), %rcx
	leaq	24(%rsp), %rdx
	movq	%rsi, (%rsp)
	leaq	40(%rsp), %rdi
	leaq	52(%rsp), %rsi
	movq	%fs:40, %rax
	movq	%rax, 104(%rsp)
	xorl	%eax, %eax
	leaq	8(%rsp), %rax
	movl	$1, 48(%rsp)
	movq	%rax, 88(%rsp)
	movq	%rsp, %rax
	movq	%rax, 96(%rsp)
	movabsq	$4294967297, %rax
	movq	%rax, 40(%rsp)
	movq	%rax, 52(%rsp)
	movl	$1, 60(%rsp)
	call	__cudaPopCallConfiguration@PLT
	testl	%eax, %eax
	jne	.L3
	pushq	32(%rsp)
	.cfi_def_cfa_offset 136
	leaq	_Z23sharedMem_reduce_kernelPfS_(%rip), %rdi
	pushq	32(%rsp)
	.cfi_def_cfa_offset 144
	movq	68(%rsp), %rcx
	movl	76(%rsp), %r8d
	movq	56(%rsp), %rsi
	movl	64(%rsp), %edx
	leaq	104(%rsp), %r9
	call	cudaLaunchKernel@PLT
	popq	%rax
	.cfi_def_cfa_offset 136
	popq	%rdx
	.cfi_def_cfa_offset 128
.L3:
	movq	104(%rsp), %rax
	subq	%fs:40, %rax
	je	.L5
	call	__stack_chk_fail@PLT
.L5:
	addq	$120, %rsp
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE3661:
	.size	_Z45__device_stub__Z23sharedMem_reduce_kernelPfS_PfS_, .-_Z45__device_stub__Z23sharedMem_reduce_kernelPfS_PfS_
	.globl	_Z23sharedMem_reduce_kernelPfS_
	.type	_Z23sharedMem_reduce_kernelPfS_, @function
_Z23sharedMem_reduce_kernelPfS_:
.LFB3662:
	.cfi_startproc
	endbr64
	jmp	_Z45__device_stub__Z23sharedMem_reduce_kernelPfS_PfS_
	.cfi_endproc
.LFE3662:
	.size	_Z23sharedMem_reduce_kernelPfS_, .-_Z23sharedMem_reduce_kernelPfS_
	.globl	_Z6reducePfS_S_i
	.type	_Z6reducePfS_S_i, @function
_Z6reducePfS_S_i:
.LFB3635:
	.cfi_startproc
	endbr64
	movl	%ecx, %eax
	pushq	%r13
	.cfi_def_cfa_offset 16
	.cfi_offset 13, -16
	movq	%rdx, %r13
	xorl	%r9d, %r9d
	pushq	%r12
	.cfi_def_cfa_offset 24
	.cfi_offset 12, -24
	cltd
	movq	%rdi, %r12
	movl	$4096, %r8d
	pushq	%rbp
	.cfi_def_cfa_offset 32
	.cfi_offset 6, -32
	movq	%rsi, %rbp
	movl	$1024, %esi
	movl	$1, %ecx
	idivl	%esi
	pushq	%rbx
	.cfi_def_cfa_offset 40
	.cfi_offset 3, -40
	subq	$40, %rsp
	.cfi_def_cfa_offset 80
	movl	$4194305, %edx
	salq	$10, %rdx
	movl	$1, 28(%rsp)
	movq	%rdx, 20(%rsp)
	movslq	%eax, %rbx
	movabsq	$4294967297, %rax
	movq	%rax, 12(%rsp)
	movl	16(%rsp), %esi
	movl	%ebx, 8(%rsp)
	movq	8(%rsp), %rdi
	call	__cudaPushCallConfiguration@PLT
	testl	%eax, %eax
	jne	.L10
	movq	%r13, %rsi
	movq	%rbp, %rdi
	call	_Z45__device_stub__Z23sharedMem_reduce_kernelPfS_PfS_
.L10:
	movl	%ebx, 20(%rsp)
	xorl	%r9d, %r9d
	movabsq	$4294967297, %rdi
	leaq	0(,%rbx,4), %r8
	movq	%rdi, 24(%rsp)
	movl	28(%rsp), %ecx
	movl	$1, %esi
	movq	20(%rsp), %rdx
	movq	%rdi, 8(%rsp)
	movl	$1, 16(%rsp)
	call	__cudaPushCallConfiguration@PLT
	testl	%eax, %eax
	jne	.L9
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 40
	movq	%rbp, %rsi
	movq	%r12, %rdi
	popq	%rbx
	.cfi_def_cfa_offset 32
	popq	%rbp
	.cfi_def_cfa_offset 24
	popq	%r12
	.cfi_def_cfa_offset 16
	popq	%r13
	.cfi_def_cfa_offset 8
	jmp	_Z45__device_stub__Z23sharedMem_reduce_kernelPfS_PfS_
.L9:
	.cfi_restore_state
	addq	$40, %rsp
	.cfi_def_cfa_offset 40
	popq	%rbx
	.cfi_def_cfa_offset 32
	popq	%rbp
	.cfi_def_cfa_offset 24
	popq	%r12
	.cfi_def_cfa_offset 16
	popq	%r13
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE3635:
	.size	_Z6reducePfS_S_i, .-_Z6reducePfS_S_i
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC1:
	.string	"No GPUs found"
.LC2:
	.string	"Using device "
.LC3:
	.string	"Global memory: "
.LC4:
	.string	"Comoute v: "
.LC5:
	.string	"."
.LC6:
	.string	"Clock: "
.LC9:
	.string	"Time elapsed: "
.LC10:
	.string	"Host result: "
.LC11:
	.string	", device result: "
	.section	.text.startup,"ax",@progbits
	.globl	main
	.type	main, @function
main:
.LFB3636:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	pushq	%rbx
	.cfi_def_cfa_offset 24
	.cfi_offset 3, -24
	leaq	-4194304(%rsp), %r11
	.cfi_def_cfa 11, 4194328
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	.cfi_def_cfa_register 7
	subq	$1128, %rsp
	.cfi_def_cfa_offset 4195456
	movq	%fs:40, %rax
	movq	%rax, 4195416(%rsp)
	xorl	%eax, %eax
	leaq	28(%rsp), %rdi
	call	cudaGetDeviceCount@PLT
	cmpl	$0, 28(%rsp)
	jne	.L14
	leaq	.LC1(%rip), %rsi
	leaq	_ZSt4cerr(%rip), %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	movq	_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_@GOTPCREL(%rip), %rsi
	movq	%rax, %rdi
	call	_ZNSolsEPFRSoS_E.isra.0
	movl	$1, %edi
	call	exit@PLT
.L14:
	xorl	%edi, %edi
	leaq	80(%rsp), %rbp
	call	cudaSetDevice@PLT
	xorl	%esi, %esi
	movq	%rbp, %rdi
	call	cudaGetDeviceProperties_v2@PLT
	testl	%eax, %eax
	jne	.L15
	leaq	_ZSt4cout(%rip), %rbx
	leaq	.LC2(%rip), %rsi
	movq	%rbx, %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	xorl	%esi, %esi
	movq	%rax, %rdi
	call	_ZNSolsEi@PLT
	movq	_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_@GOTPCREL(%rip), %rsi
	movq	%rax, %rdi
	call	_ZNSolsEPFRSoS_E.isra.0
	movq	%rbp, %rsi
	movq	%rbx, %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	movq	_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_@GOTPCREL(%rip), %rsi
	movq	%rax, %rdi
	call	_ZNSolsEPFRSoS_E.isra.0
	leaq	.LC3(%rip), %rsi
	movq	%rbx, %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	movq	368(%rsp), %rsi
	movq	%rax, %rdi
	call	_ZNSo9_M_insertImEERSoT_@PLT
	movq	_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_@GOTPCREL(%rip), %rsi
	movq	%rax, %rdi
	call	_ZNSolsEPFRSoS_E.isra.0
	leaq	.LC4(%rip), %rsi
	movq	%rbx, %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	movl	440(%rsp), %esi
	movq	%rax, %rdi
	call	_ZNSolsEi@PLT
	leaq	.LC5(%rip), %rsi
	movq	%rax, %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	movl	444(%rsp), %esi
	movq	%rax, %rdi
	call	_ZNSolsEi@PLT
	movq	_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_@GOTPCREL(%rip), %rsi
	movq	%rax, %rdi
	call	_ZNSolsEPFRSoS_E.isra.0
	leaq	.LC6(%rip), %rsi
	movq	%rbx, %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	movl	428(%rsp), %esi
	movq	%rax, %rdi
	call	_ZNSolsEi@PLT
	movq	_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_@GOTPCREL(%rip), %rsi
	movq	%rax, %rdi
	call	_ZNSolsEPFRSoS_E.isra.0
.L15:
	movl	$0x00000000, 12(%rsp)
	xorl	%ebx, %ebx
.L16:
	call	random@PLT
	leaq	1112(%rsp), %rbp
	cvtsi2ssq	%rax, %xmm0
	mulss	.LC7(%rip), %xmm0
	subss	.LC8(%rip), %xmm0
	movss	%xmm0, 0(%rbp,%rbx,4)
	addss	12(%rsp), %xmm0
	incq	%rbx
	movss	%xmm0, 12(%rsp)
	cmpq	$1048576, %rbx
	jne	.L16
	leaq	40(%rsp), %rdi
	movl	$4194304, %esi
	leaq	_ZSt4cout(%rip), %rbx
	call	cudaMalloc@PLT
	leaq	48(%rsp), %rdi
	movl	$4194304, %esi
	call	cudaMalloc@PLT
	leaq	56(%rsp), %rdi
	movl	$4, %esi
	call	cudaMalloc@PLT
	movq	40(%rsp), %rdi
	movl	$1, %ecx
	movq	%rbp, %rsi
	movl	$4194304, %edx
	call	cudaMemcpy@PLT
	leaq	64(%rsp), %rdi
	call	cudaEventCreate@PLT
	leaq	72(%rsp), %rdi
	call	cudaEventCreate@PLT
	movq	64(%rsp), %rdi
	xorl	%esi, %esi
	call	cudaEventRecord@PLT
	movq	40(%rsp), %rdx
	movq	48(%rsp), %rsi
	movl	$1048576, %ecx
	movq	56(%rsp), %rdi
	call	_Z6reducePfS_S_i
	movq	72(%rsp), %rdi
	xorl	%esi, %esi
	call	cudaEventRecord@PLT
	movq	72(%rsp), %rdi
	call	cudaEventSynchronize@PLT
	movq	72(%rsp), %rdx
	movq	64(%rsp), %rsi
	leaq	32(%rsp), %rdi
	call	cudaEventElapsedTime@PLT
	movq	56(%rsp), %rsi
	movl	$2, %ecx
	movl	$4, %edx
	leaq	36(%rsp), %rdi
	call	cudaMemcpy@PLT
	leaq	.LC9(%rip), %rsi
	movq	%rbx, %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	cvtss2sd	32(%rsp), %xmm0
	movq	%rax, %rdi
	call	_ZNSo9_M_insertIdEERSoT_@PLT
	movq	_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_@GOTPCREL(%rip), %rsi
	movq	%rax, %rdi
	call	_ZNSolsEPFRSoS_E.isra.0
	leaq	.LC10(%rip), %rsi
	movq	%rbx, %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	cvtss2sd	12(%rsp), %xmm0
	movq	%rax, %rdi
	call	_ZNSo9_M_insertIdEERSoT_@PLT
	leaq	.LC11(%rip), %rsi
	movq	%rax, %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	cvtss2sd	36(%rsp), %xmm0
	movq	%rax, %rdi
	call	_ZNSo9_M_insertIdEERSoT_@PLT
	movq	_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_@GOTPCREL(%rip), %rsi
	movq	%rax, %rdi
	call	_ZNSolsEPFRSoS_E.isra.0
	movq	40(%rsp), %rdi
	call	cudaFree@PLT
	movq	48(%rsp), %rdi
	call	cudaFree@PLT
	movq	56(%rsp), %rdi
	call	cudaFree@PLT
	movq	4195416(%rsp), %rax
	subq	%fs:40, %rax
	je	.L17
	call	__stack_chk_fail@PLT
.L17:
	addq	$4195432, %rsp
	.cfi_def_cfa_offset 24
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 16
	popq	%rbp
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE3636:
	.size	main, .-main
	.section	.rodata.str1.1
.LC12:
	.string	"_Z23sharedMem_reduce_kernelPfS_"
	.section	.text.startup
	.type	_ZL24__sti____cudaRegisterAllv, @function
_ZL24__sti____cudaRegisterAllv:
.LFB3664:
	.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	.LC12(%rip), %rdx
	movq	%rax, %rdi
	leaq	_Z23sharedMem_reduce_kernelPfS_(%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
.LFE3664:
	.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.cst4,"aM",@progbits,4
	.align 4
.LC7:
	.long	813694976
	.align 4
.LC8:
	.long	1065353216
	.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 <hip/hip_runtime.h>
#include <iostream>

__global__ void sharedMem_reduce_kernel(float *d_out, float *d_in) {
  // shared_data is allocated in the kernel call: 3rd argument
  extern __shared__ float shared_data[];

  int myId = threadIdx.x + blockDim.x * blockIdx.x;
  int thrId = threadIdx.x;

  // load shared memory from global memory
  shared_data[thrId] = d_in[myId];
  __syncthreads();

  // do reduction in SHARED memory
  for (unsigned int s = blockDim.x / 2; s > 0; s >>= 1) {
    if (thrId < s) {
      shared_data[thrId] += shared_data[thrId + s];
    }
    __syncthreads();
  }

  // thread 0 writes result of this block from shared to global memory
  if (thrId == 0) {
    d_out[blockIdx.x] = shared_data[0];
  }
}

void reduce(float *d_out, float *d_intermediate, float *d_in, int size) {
  // assumption 1: size is not greater than maxThreadsPerBlock ** 2
  // assumption 2: size is a multiple of maxThreadsPerBlock

  const int maxThreadsPerBlock = 1024;
  int threads = maxThreadsPerBlock;
  int blocks = size / maxThreadsPerBlock;

  sharedMem_reduce_kernel<<<blocks, threads, threads * sizeof(float)>>>(d_intermediate, d_in);
  
  // now we are down to one block, reduce it
  threads = blocks;  // each block wrote one number into d_intermediate
  blocks = 1;

  sharedMem_reduce_kernel<<<blocks, threads, threads * sizeof(float)>>>(d_out, d_intermediate);
}

int main(int argc, char* argv[]) {

  // --- Checking whether there is a device --- //
  int deviceCount;
  hipGetDeviceCount(&deviceCount);
  if (deviceCount == 0) {
    std::cerr << "No GPUs found" << std::endl;
    exit(EXIT_FAILURE);
  }
  // --- Properties of device --- //
  int dev = 0;
  hipSetDevice(dev);

  hipDeviceProp_t deviceProps;
  if (hipGetDeviceProperties(&deviceProps, dev) == 0) {
    std::cout << "Using device " << dev << std::endl;
    std::cout << deviceProps.name << std::endl;
    std::cout << "Global memory: " << deviceProps.totalGlobalMem << std::endl;
    std::cout << "Comoute v: " << static_cast<int>(deviceProps.major) << "." <<
        static_cast<int>(deviceProps.minor)<< std::endl;
    std::cout << "Clock: " << static_cast<int>(deviceProps.clockRate) << std::endl;
  }

  // --- Actual task - Reducing a sequence of numbers wit op "+" --- //
  const int ARRAY_SIZE = 1 << 20;
  const int ARRAY_BYTES = ARRAY_SIZE * sizeof(float);

  // generate input array on host
  float h_in[ARRAY_SIZE];
  float sum = 0.0f;
  for (int i = 0; i < ARRAY_SIZE; i++) {
    h_in[i] = -1.0f + static_cast<float>(random())/(static_cast<float>(RAND_MAX)/2.0f);
    sum += h_in[i];
  }

  // declare device pointers
  float *d_in, *d_intermediate, *d_out;

  // allocate device memory
  hipMalloc((void **) &d_in, ARRAY_BYTES);
  hipMalloc((void **) &d_intermediate, ARRAY_BYTES); // overallocated
  hipMalloc((void **) &d_out, sizeof(float));

  // transfer input array to device
  hipMemcpy(d_in, h_in, ARRAY_BYTES, hipMemcpyHostToDevice);

  hipEvent_t start, stop;
  hipEventCreate(&start);
  hipEventCreate(&stop);

  hipEventRecord(start, 0);
  reduce(d_out, d_intermediate, d_in, ARRAY_SIZE);
  hipEventRecord(stop, 0);

  // calculate elapsed time
  hipEventSynchronize(stop);
  float elapsed;
  hipEventElapsedTime(&elapsed, start, stop);

  // copy back the result to host
  float h_out;
  hipMemcpy(&h_out, d_out, sizeof(float), hipMemcpyDeviceToHost);

  std::cout << "Time elapsed: " << elapsed << std::endl;
  std::cout << "Host result: " << sum << ", device result: " << h_out << std::endl;

  hipFree(d_in);
  hipFree(d_intermediate);
  hipFree(d_out);
  return 0;
}

	.text
	.file	"reduce.hip"
                                        # Start of file scope inline assembly
	.globl	_ZSt21ios_base_library_initv

                                        # End of file scope inline assembly
	.globl	_Z38__device_stub__sharedMem_reduce_kernelPfS_ # -- Begin function _Z38__device_stub__sharedMem_reduce_kernelPfS_
	.type	_Z38__device_stub__sharedMem_reduce_kernelPfS_,@function
_Z38__device_stub__sharedMem_reduce_kernelPfS_: # @_Z38__device_stub__sharedMem_reduce_kernelPfS_
	.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	$80, %rsp
	.cfi_def_cfa_offset 128
	.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	16(%rsp), %rcx
	movq	%rsi, (%rcx)
	leaq	64(%rsp), %rbx
	movq	%rax, (%rbx)
	movq	%rcx, 8(%rbx)
	leaq	48(%rsp), %r14
	leaq	32(%rsp), %r15
	leaq	8(%rsp), %r12
	movq	%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	$_Z23sharedMem_reduce_kernelPfS_, %edi
	movq	%rbx, %r9
	pushq	(%r13)
	.cfi_adjust_cfa_offset 8
	pushq	(%r12)
	.cfi_adjust_cfa_offset 8
	callq	hipLaunchKernel
	addq	$96, %rsp
	.cfi_adjust_cfa_offset -96
	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_end0:
	.size	_Z38__device_stub__sharedMem_reduce_kernelPfS_, .Lfunc_end0-_Z38__device_stub__sharedMem_reduce_kernelPfS_
	.cfi_endproc
                                        # -- End function
	.globl	_Z6reducePfS_S_i                # -- Begin function _Z6reducePfS_S_i
	.type	_Z6reducePfS_S_i,@function
_Z6reducePfS_S_i:                       # @_Z6reducePfS_S_i
	.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
	pushq	%rax
	.cfi_def_cfa_offset 64
	.cfi_offset %rbx, -56
	.cfi_offset %r12, -48
	.cfi_offset %r13, -40
	.cfi_offset %r14, -32
	.cfi_offset %r15, -24
	.cfi_offset %rbp, -16
                                        # kill: def $ecx killed $ecx def $rcx
	movq	%rdx, %r13
	movq	%rsi, %rbx
	movq	%rdi, %r14
	movabsq	$4294967296, %r15               # imm = 0x100000000
	leal	1023(%rcx), %ebp
	testl	%ecx, %ecx
	cmovnsl	%ecx, %ebp
	sarl	$10, %ebp
	movq	%rbp, %r12
	btsq	$32, %r12
	leaq	1024(%r15), %rdx
	movl	$4096, %r8d                     # imm = 0x1000
	movq	%r12, %rdi
	movl	$1, %esi
	movl	$1, %ecx
	xorl	%r9d, %r9d
	callq	__hipPushCallConfiguration
	testl	%eax, %eax
	jne	.LBB1_2
# %bb.1:
	movq	%rbx, %rdi
	movq	%r13, %rsi
	callq	_Z38__device_stub__sharedMem_reduce_kernelPfS_
.LBB1_2:
	movslq	%ebp, %r8
	shlq	$2, %r8
	incq	%r15
	movq	%r15, %rdi
	movl	$1, %esi
	movq	%r12, %rdx
	movl	$1, %ecx
	xorl	%r9d, %r9d
	callq	__hipPushCallConfiguration
	testl	%eax, %eax
	je	.LBB1_4
# %bb.3:
	addq	$8, %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
.LBB1_4:
	.cfi_def_cfa_offset 64
	movq	%r14, %rdi
	movq	%rbx, %rsi
	addq	$8, %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
	jmp	_Z38__device_stub__sharedMem_reduce_kernelPfS_ # TAILCALL
.Lfunc_end1:
	.size	_Z6reducePfS_S_i, .Lfunc_end1-_Z6reducePfS_S_i
	.cfi_endproc
                                        # -- End function
	.section	.rodata.cst4,"aM",@progbits,4
	.p2align	2, 0x0                          # -- Begin function main
.LCPI2_0:
	.long	0x30800000                      # float 9.31322574E-10
.LCPI2_1:
	.long	0xbf800000                      # float -1
	.text
	.globl	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	%r13
	.cfi_def_cfa_offset 32
	pushq	%r12
	.cfi_def_cfa_offset 40
	pushq	%rbx
	.cfi_def_cfa_offset 48
	subq	$4195840, %rsp                  # imm = 0x400600
	.cfi_def_cfa_offset 4195888
	.cfi_offset %rbx, -48
	.cfi_offset %r12, -40
	.cfi_offset %r13, -32
	.cfi_offset %r14, -24
	.cfi_offset %r15, -16
	leaq	20(%rsp), %rbx
	movq	%rbx, %rdi
	callq	hipGetDeviceCount
	cmpl	$0, (%rbx)
	je	.LBB2_6
# %bb.1:
	xorl	%edi, %edi
	callq	hipSetDevice
	leaq	64(%rsp), %rdi
	xorl	%esi, %esi
	callq	hipGetDevicePropertiesR0600
	testl	%eax, %eax
	jne	.LBB2_3
# %bb.2:
	movl	$_ZSt4cout, %r14d
	movl	$_ZSt4cout, %edi
	movl	$.L.str.1, %esi
	movl	$13, %edx
	callq	_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
	movl	$_ZSt4cout, %edi
	xorl	%esi, %esi
	callq	_ZNSolsEi
	movq	%rax, %rbx
	movq	(%rax), %rax
	movq	-24(%rax), %rdi
	addq	%rbx, %rdi
	movl	$10, %esi
	callq	_ZNKSt9basic_iosIcSt11char_traitsIcEE5widenEc
	movsbl	%al, %esi
	movq	%rbx, %rdi
	callq	_ZNSo3putEc
	movq	%rax, %rdi
	callq	_ZNSo5flushEv
	leaq	64(%rsp), %rbx
	movq	%rbx, %rdi
	callq	strlen
	movl	$_ZSt4cout, %edi
	movq	%rbx, %rsi
	movq	%rax, %rdx
	callq	_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
	movq	_ZSt4cout(%rip), %rax
	movq	-24(%rax), %rdi
	addq	%r14, %rdi
	movl	$10, %esi
	callq	_ZNKSt9basic_iosIcSt11char_traitsIcEE5widenEc
	movsbl	%al, %esi
	movl	$_ZSt4cout, %edi
	callq	_ZNSo3putEc
	movq	%rax, %rdi
	callq	_ZNSo5flushEv
	movl	$_ZSt4cout, %edi
	movl	$.L.str.2, %esi
	movl	$15, %edx
	callq	_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
	movq	288(%rbx), %rsi
	movl	$_ZSt4cout, %edi
	callq	_ZNSo9_M_insertImEERSoT_
	movq	%rax, %r14
	movq	(%rax), %rax
	movq	-24(%rax), %rdi
	addq	%r14, %rdi
	movl	$10, %esi
	callq	_ZNKSt9basic_iosIcSt11char_traitsIcEE5widenEc
	movsbl	%al, %esi
	movq	%r14, %rdi
	callq	_ZNSo3putEc
	movq	%rax, %rdi
	callq	_ZNSo5flushEv
	movl	$_ZSt4cout, %edi
	movl	$.L.str.3, %esi
	movl	$11, %edx
	callq	_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
	movl	360(%rbx), %esi
	movl	$_ZSt4cout, %edi
	callq	_ZNSolsEi
	movq	%rax, %r14
	movl	$.L.str.4, %esi
	movl	$1, %edx
	movq	%rax, %rdi
	callq	_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
	movl	364(%rbx), %esi
	movq	%r14, %rdi
	callq	_ZNSolsEi
	movq	%rax, %r14
	movq	(%rax), %rax
	movq	-24(%rax), %rdi
	addq	%r14, %rdi
	movl	$10, %esi
	callq	_ZNKSt9basic_iosIcSt11char_traitsIcEE5widenEc
	movsbl	%al, %esi
	movq	%r14, %rdi
	callq	_ZNSo3putEc
	movq	%rax, %rdi
	callq	_ZNSo5flushEv
	movl	$_ZSt4cout, %edi
	movl	$.L.str.5, %esi
	movl	$7, %edx
	callq	_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
	movl	348(%rbx), %esi
	movl	$_ZSt4cout, %edi
	callq	_ZNSolsEi
	movq	%rax, %rbx
	movq	(%rax), %rax
	movq	-24(%rax), %rdi
	addq	%rbx, %rdi
	movl	$10, %esi
	callq	_ZNKSt9basic_iosIcSt11char_traitsIcEE5widenEc
	movsbl	%al, %esi
	movq	%rbx, %rdi
	callq	_ZNSo3putEc
	movq	%rax, %rdi
	callq	_ZNSo5flushEv
.LBB2_3:
	xorps	%xmm0, %xmm0
	movss	%xmm0, 8(%rsp)                  # 4-byte Spill
	xorl	%ebx, %ebx
.LBB2_4:                                # =>This Inner Loop Header: Depth=1
	callq	random
	xorps	%xmm0, %xmm0
	cvtsi2ss	%rax, %xmm0
	mulss	.LCPI2_0(%rip), %xmm0
	addss	.LCPI2_1(%rip), %xmm0
	movss	%xmm0, 1536(%rsp,%rbx,4)
	movss	8(%rsp), %xmm1                  # 4-byte Reload
                                        # xmm1 = mem[0],zero,zero,zero
	addss	%xmm0, %xmm1
	movss	%xmm1, 8(%rsp)                  # 4-byte Spill
	incq	%rbx
	cmpq	$1048576, %rbx                  # imm = 0x100000
	jne	.LBB2_4
# %bb.5:
	leaq	56(%rsp), %rbx
	movl	$4194304, %esi                  # imm = 0x400000
	movq	%rbx, %rdi
	callq	hipMalloc
	leaq	48(%rsp), %r14
	movl	$4194304, %esi                  # imm = 0x400000
	movq	%r14, %rdi
	callq	hipMalloc
	leaq	40(%rsp), %r15
	movl	$4, %esi
	movq	%r15, %rdi
	callq	hipMalloc
	movq	(%rbx), %rdi
	leaq	1536(%rsp), %rsi
	movl	$4194304, %edx                  # imm = 0x400000
	movl	$1, %ecx
	callq	hipMemcpy
	leaq	32(%rsp), %r12
	movq	%r12, %rdi
	callq	hipEventCreate
	leaq	24(%rsp), %r13
	movq	%r13, %rdi
	callq	hipEventCreate
	movq	(%r12), %rdi
	xorl	%esi, %esi
	callq	hipEventRecord
	movq	(%r15), %rdi
	movq	(%r14), %rsi
	movq	(%rbx), %rdx
	movl	$1048576, %ecx                  # imm = 0x100000
	callq	_Z6reducePfS_S_i
	movq	(%r13), %rdi
	xorl	%esi, %esi
	callq	hipEventRecord
	movq	(%r13), %rdi
	callq	hipEventSynchronize
	movq	(%r12), %rsi
	movq	(%r13), %rdx
	leaq	16(%rsp), %r13
	movq	%r13, %rdi
	callq	hipEventElapsedTime
	movq	(%r15), %rsi
	leaq	12(%rsp), %r12
	movl	$4, %edx
	movq	%r12, %rdi
	movl	$2, %ecx
	callq	hipMemcpy
	movl	$_ZSt4cout, %edi
	movl	$.L.str.6, %esi
	movl	$14, %edx
	callq	_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
	xorps	%xmm0, %xmm0
	cvtss2sd	(%r13), %xmm0
	movl	$_ZSt4cout, %edi
	callq	_ZNSo9_M_insertIdEERSoT_
	movq	%rax, %r13
	movq	(%rax), %rax
	movq	-24(%rax), %rdi
	addq	%r13, %rdi
	movl	$10, %esi
	callq	_ZNKSt9basic_iosIcSt11char_traitsIcEE5widenEc
	movsbl	%al, %esi
	movq	%r13, %rdi
	callq	_ZNSo3putEc
	movq	%rax, %rdi
	callq	_ZNSo5flushEv
	movl	$_ZSt4cout, %edi
	movl	$.L.str.7, %esi
	movl	$13, %edx
	callq	_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
	xorps	%xmm0, %xmm0
	cvtss2sd	8(%rsp), %xmm0                  # 4-byte Folded Reload
	movl	$_ZSt4cout, %edi
	callq	_ZNSo9_M_insertIdEERSoT_
	movq	%rax, %r13
	movl	$.L.str.8, %esi
	movl	$17, %edx
	movq	%rax, %rdi
	callq	_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
	xorps	%xmm0, %xmm0
	cvtss2sd	(%r12), %xmm0
	movq	%r13, %rdi
	callq	_ZNSo9_M_insertIdEERSoT_
	movq	%rax, %r12
	movq	(%rax), %rax
	movq	-24(%rax), %rdi
	addq	%r12, %rdi
	movl	$10, %esi
	callq	_ZNKSt9basic_iosIcSt11char_traitsIcEE5widenEc
	movsbl	%al, %esi
	movq	%r12, %rdi
	callq	_ZNSo3putEc
	movq	%rax, %rdi
	callq	_ZNSo5flushEv
	movq	(%rbx), %rdi
	callq	hipFree
	movq	(%r14), %rdi
	callq	hipFree
	movq	(%r15), %rdi
	callq	hipFree
	xorl	%eax, %eax
	addq	$4195840, %rsp                  # imm = 0x400600
	.cfi_def_cfa_offset 48
	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
.LBB2_6:
	.cfi_def_cfa_offset 4195888
	movl	$_ZSt4cerr, %edi
	movl	$.L.str, %esi
	callq	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc
	movq	%rax, %rdi
	callq	_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_
	movl	$1, %edi
	callq	exit
.Lfunc_end2:
	.size	main, .Lfunc_end2-main
	.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	$_Z23sharedMem_reduce_kernelPfS_, %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	_Z23sharedMem_reduce_kernelPfS_,@object # @_Z23sharedMem_reduce_kernelPfS_
	.section	.rodata,"a",@progbits
	.globl	_Z23sharedMem_reduce_kernelPfS_
	.p2align	3, 0x0
_Z23sharedMem_reduce_kernelPfS_:
	.quad	_Z38__device_stub__sharedMem_reduce_kernelPfS_
	.size	_Z23sharedMem_reduce_kernelPfS_, 8

	.type	.L.str,@object                  # @.str
	.section	.rodata.str1.1,"aMS",@progbits,1
.L.str:
	.asciz	"No GPUs found"
	.size	.L.str, 14

	.type	.L.str.1,@object                # @.str.1
.L.str.1:
	.asciz	"Using device "
	.size	.L.str.1, 14

	.type	.L.str.2,@object                # @.str.2
.L.str.2:
	.asciz	"Global memory: "
	.size	.L.str.2, 16

	.type	.L.str.3,@object                # @.str.3
.L.str.3:
	.asciz	"Comoute v: "
	.size	.L.str.3, 12

	.type	.L.str.4,@object                # @.str.4
.L.str.4:
	.asciz	"."
	.size	.L.str.4, 2

	.type	.L.str.5,@object                # @.str.5
.L.str.5:
	.asciz	"Clock: "
	.size	.L.str.5, 8

	.type	.L.str.6,@object                # @.str.6
.L.str.6:
	.asciz	"Time elapsed: "
	.size	.L.str.6, 15

	.type	.L.str.7,@object                # @.str.7
.L.str.7:
	.asciz	"Host result: "
	.size	.L.str.7, 14

	.type	.L.str.8,@object                # @.str.8
.L.str.8:
	.asciz	", device result: "
	.size	.L.str.8, 18

	.type	.L__unnamed_1,@object           # @0
.L__unnamed_1:
	.asciz	"_Z23sharedMem_reduce_kernelPfS_"
	.size	.L__unnamed_1, 32

	.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

	.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 _Z38__device_stub__sharedMem_reduce_kernelPfS_
	.addrsig_sym __hip_module_ctor
	.addrsig_sym __hip_module_dtor
	.addrsig_sym _Z23sharedMem_reduce_kernelPfS_
	.addrsig_sym _ZSt4cerr
	.addrsig_sym _ZSt4cout
	.addrsig_sym __hip_fatbin
	.addrsig_sym __hip_fatbin_wrapper
	.addrsig_sym __hip_cuid_

	.text
	.amdgcn_target "amdgcn-amd-amdhsa--gfx1100"
	.protected	_Z23sharedMem_reduce_kernelPfS_ ; -- Begin function _Z23sharedMem_reduce_kernelPfS_
	.globl	_Z23sharedMem_reduce_kernelPfS_
	.p2align	8
	.type	_Z23sharedMem_reduce_kernelPfS_,@function
_Z23sharedMem_reduce_kernelPfS_:        ; @_Z23sharedMem_reduce_kernelPfS_
; %bb.0:
	s_clause 0x1
	s_load_b32 s5, s[0:1], 0x1c
	s_load_b128 s[0:3], s[0:1], 0x0
	s_mov_b32 s4, s15
	s_waitcnt lgkmcnt(0)
	s_and_b32 s5, s5, 0xffff
	s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_1) | instid1(VALU_DEP_1)
	v_mad_u64_u32 v[1:2], null, s4, s5, v[0:1]
	s_cmp_lt_u32 s5, 2
	v_ashrrev_i32_e32 v2, 31, v1
	s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
	v_lshlrev_b64 v[1:2], 2, v[1:2]
	v_add_co_u32 v1, vcc_lo, s2, v1
	s_delay_alu instid0(VALU_DEP_2)
	v_add_co_ci_u32_e32 v2, vcc_lo, s3, v2, vcc_lo
	global_load_b32 v2, v[1:2], off
	v_lshl_add_u32 v1, v0, 2, 0
	s_waitcnt vmcnt(0)
	ds_store_b32 v1, v2
	s_waitcnt lgkmcnt(0)
	s_barrier
.LBB0_1:                                ; =>This Inner Loop Header: Depth=1
	buffer_gl0_inv
	s_cbranch_scc1 .LBB0_5
; %bb.2:                                ; %.lr.ph
                                        ;   in Loop: Header=BB0_1 Depth=1
	s_lshr_b32 s2, s5, 1
	s_mov_b32 s3, exec_lo
	v_cmpx_gt_u32_e64 s2, v0
	s_cbranch_execz .LBB0_4
; %bb.3:                                ;   in Loop: Header=BB0_1 Depth=1
	v_lshl_add_u32 v2, s2, 2, v1
	ds_load_b32 v2, v2
	ds_load_b32 v3, v1
	s_waitcnt lgkmcnt(0)
	v_add_f32_e32 v2, v2, v3
	ds_store_b32 v1, v2
.LBB0_4:                                ;   in Loop: Header=BB0_1 Depth=1
	s_or_b32 exec_lo, exec_lo, s3
	s_waitcnt lgkmcnt(0)
	s_barrier
	s_cmp_lt_u32 s5, 4
	s_mov_b32 s5, s2
	s_branch .LBB0_1
.LBB0_5:                                ; %._crit_edge
	s_mov_b32 s2, exec_lo
	v_cmpx_eq_u32_e32 0, v0
	s_cbranch_execz .LBB0_7
; %bb.6:
	v_mov_b32_e32 v0, 0
	s_mov_b32 s5, 0
	s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | instid1(SALU_CYCLE_1)
	s_lshl_b64 s[2:3], s[4:5], 2
	s_add_u32 s0, s0, s2
	ds_load_b32 v1, v0
	s_addc_u32 s1, s1, s3
	s_waitcnt lgkmcnt(0)
	global_store_b32 v0, v1, s[0:1]
.LBB0_7:
	s_nop 0
	s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
	s_endpgm
	.section	.rodata,"a",@progbits
	.p2align	6, 0x0
	.amdhsa_kernel _Z23sharedMem_reduce_kernelPfS_
		.amdhsa_group_segment_fixed_size 0
		.amdhsa_private_segment_fixed_size 0
		.amdhsa_kernarg_size 272
		.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 4
		.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	_Z23sharedMem_reduce_kernelPfS_, .Lfunc_end0-_Z23sharedMem_reduce_kernelPfS_
                                        ; -- End function
	.section	.AMDGPU.csdata,"",@progbits
; Kernel info:
; codeLenInByte = 284
; NumSgprs: 18
; NumVgprs: 4
; ScratchSize: 0
; MemoryBound: 0
; FloatMode: 240
; IeeeMode: 1
; LDSByteSize: 0 bytes/workgroup (compile time only)
; SGPRBlocks: 2
; VGPRBlocks: 0
; NumSGPRsForWavesPerEU: 18
; NumVGPRsForWavesPerEU: 4
; 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
      - .address_space:  global
        .offset:         8
        .size:           8
        .value_kind:     global_buffer
      - .offset:         16
        .size:           4
        .value_kind:     hidden_block_count_x
      - .offset:         20
        .size:           4
        .value_kind:     hidden_block_count_y
      - .offset:         24
        .size:           4
        .value_kind:     hidden_block_count_z
      - .offset:         28
        .size:           2
        .value_kind:     hidden_group_size_x
      - .offset:         30
        .size:           2
        .value_kind:     hidden_group_size_y
      - .offset:         32
        .size:           2
        .value_kind:     hidden_group_size_z
      - .offset:         34
        .size:           2
        .value_kind:     hidden_remainder_x
      - .offset:         36
        .size:           2
        .value_kind:     hidden_remainder_y
      - .offset:         38
        .size:           2
        .value_kind:     hidden_remainder_z
      - .offset:         56
        .size:           8
        .value_kind:     hidden_global_offset_x
      - .offset:         64
        .size:           8
        .value_kind:     hidden_global_offset_y
      - .offset:         72
        .size:           8
        .value_kind:     hidden_global_offset_z
      - .offset:         80
        .size:           2
        .value_kind:     hidden_grid_dims
      - .offset:         136
        .size:           4
        .value_kind:     hidden_dynamic_lds_size
    .group_segment_fixed_size: 0
    .kernarg_segment_align: 8
    .kernarg_segment_size: 272
    .language:       OpenCL C
    .language_version:
      - 2
      - 0
    .max_flat_workgroup_size: 1024
    .name:           _Z23sharedMem_reduce_kernelPfS_
    .private_segment_fixed_size: 0
    .sgpr_count:     18
    .sgpr_spill_count: 0
    .symbol:         _Z23sharedMem_reduce_kernelPfS_.kd
    .uniform_work_group_size: 1
    .uses_dynamic_stack: false
    .vgpr_count:     4
    .vgpr_spill_count: 0
    .wavefront_size: 32
    .workgroup_processor_mode: 1
amdhsa.target:   amdgcn-amd-amdhsa--gfx1100
amdhsa.version:
  - 1
  - 2
...

	.end_amdgpu_metadata
