#include <stdio.h>

float uniform(float low, float high) {
    return low + (static_cast<float>(rand())/RAND_MAX)*(high - low);
}

int main() {

    int size = static_cast<int>(1 << 25);

    float* host_arr = (float*) malloc(size*sizeof(float));
    for(size_t i = 0; i < size; ++i) {
        host_arr[i] = uniform(0.0, 1.0);
    }
    float* dev_arr;

    cudaMalloc(&dev_arr, size*sizeof(float));
    cudaMemcpy(dev_arr, host_arr, size*sizeof(float), cudaMemcpyHostToDevice);
    cudaMemcpy(host_arr, dev_arr, size*sizeof(float), cudaMemcpyDeviceToHost);

    int ix = 4000000;
    printf("%f\n", host_arr[ix]);

    return 0;
}

	.file	"tmpxft_002d7b8f_00000000-6_repro.cudafe1.cpp"
	.text
#APP

#NO_APP
	.type	_ZL26__cudaUnregisterBinaryUtilv, @function
_ZL26__cudaUnregisterBinaryUtilv:
.LFB2031:
	.cfi_startproc
	endbr64
	movq	_ZL20__cudaFatCubinHandle(%rip), %rdi
	jmp	__cudaUnregisterFatBinary@PLT
	.cfi_endproc
.LFE2031:
	.size	_ZL26__cudaUnregisterBinaryUtilv, .-_ZL26__cudaUnregisterBinaryUtilv
	.globl	_Z7uniformff
	.type	_Z7uniformff, @function
_Z7uniformff:
.LFB2027:
	.cfi_startproc
	endbr64
	subq	$24, %rsp
	.cfi_def_cfa_offset 32
	movss	%xmm0, 12(%rsp)
	movss	%xmm1, 8(%rsp)
	call	rand@PLT
	movss	12(%rsp), %xmm2
	movss	8(%rsp), %xmm1
	cvtsi2ssl	%eax, %xmm0
	mulss	.LC0(%rip), %xmm0
	addq	$24, %rsp
	.cfi_def_cfa_offset 8
	subss	%xmm2, %xmm1
	mulss	%xmm0, %xmm1
	movaps	%xmm1, %xmm0
	addss	%xmm2, %xmm0
	ret
	.cfi_endproc
.LFE2027:
	.size	_Z7uniformff, .-_Z7uniformff
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC3:
	.string	"%f\n"
	.section	.text.startup,"ax",@progbits
	.globl	main
	.type	main, @function
main:
.LFB2028:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movl	$134217728, %edi
	xorl	%ebp, %ebp
	pushq	%rbx
	.cfi_def_cfa_offset 24
	.cfi_offset 3, -24
	subq	$24, %rsp
	.cfi_def_cfa_offset 48
	movq	%fs:40, %rax
	movq	%rax, 8(%rsp)
	xorl	%eax, %eax
	call	malloc@PLT
	movq	%rax, %rbx
.L5:
	movss	.LC1(%rip), %xmm1
	xorps	%xmm0, %xmm0
	call	_Z7uniformff
	movss	%xmm0, (%rbx,%rbp,4)
	incq	%rbp
	cmpq	$33554432, %rbp
	jne	.L5
	movq	%rsp, %rdi
	movl	$134217728, %esi
	call	cudaMalloc@PLT
	movq	(%rsp), %rdi
	movl	$1, %ecx
	movq	%rbx, %rsi
	movl	$134217728, %edx
	call	cudaMemcpy@PLT
	movq	(%rsp), %rsi
	movq	%rbx, %rdi
	movl	$2, %ecx
	movl	$134217728, %edx
	call	cudaMemcpy@PLT
	leaq	.LC3(%rip), %rsi
	movb	$1, %al
	movl	$2, %edi
	cvtss2sd	16000000(%rbx), %xmm0
	call	__printf_chk@PLT
	movq	8(%rsp), %rax
	subq	%fs:40, %rax
	je	.L6
	call	__stack_chk_fail@PLT
.L6:
	addq	$24, %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
.LFE2028:
	.size	main, .-main
	.type	_ZL24__sti____cudaRegisterAllv, @function
_ZL24__sti____cudaRegisterAllv:
.LFB2054:
	.cfi_startproc
	endbr64
	pushq	%rax
	.cfi_def_cfa_offset 16
	leaq	_ZL15__fatDeviceText(%rip), %rdi
	call	__cudaRegisterFatBinary@PLT
	movq	%rax, %rdi
	movq	%rax, _ZL20__cudaFatCubinHandle(%rip)
	call	__cudaRegisterFatBinaryEnd@PLT
	leaq	_ZL26__cudaUnregisterBinaryUtilv(%rip), %rdi
	popq	%rdx
	.cfi_def_cfa_offset 8
	jmp	atexit@PLT
	.cfi_endproc
.LFE2054:
	.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
.LC0:
	.long	805306368
	.align 4
.LC1:
	.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 <hip/hip_runtime.h>
#include <stdio.h>

float uniform(float low, float high) {
    return low + (static_cast<float>(rand())/RAND_MAX)*(high - low);
}

int main() {

    int size = static_cast<int>(1 << 25);

    float* host_arr = (float*) malloc(size*sizeof(float));
    for(size_t i = 0; i < size; ++i) {
        host_arr[i] = uniform(0.0, 1.0);
    }
    float* dev_arr;

    hipMalloc(&dev_arr, size*sizeof(float));
    hipMemcpy(dev_arr, host_arr, size*sizeof(float), hipMemcpyHostToDevice);
    hipMemcpy(host_arr, dev_arr, size*sizeof(float), hipMemcpyDeviceToHost);

    int ix = 4000000;
    printf("%f\n", host_arr[ix]);

    return 0;
}

	.text
	.file	"repro.hip"
	.section	.rodata.cst4,"aM",@progbits,4
	.p2align	2, 0x0                          # -- Begin function _Z7uniformff
.LCPI0_0:
	.long	0x30000000                      # float 4.65661287E-10
	.text
	.globl	_Z7uniformff
	.type	_Z7uniformff,@function
_Z7uniformff:                           # @_Z7uniformff
	.cfi_startproc
# %bb.0:
	pushq	%rax
	.cfi_def_cfa_offset 16
	movss	%xmm1, 4(%rsp)                  # 4-byte Spill
	movss	%xmm0, (%rsp)                   # 4-byte Spill
	callq	rand
	xorps	%xmm1, %xmm1
	cvtsi2ss	%eax, %xmm1
	mulss	.LCPI0_0(%rip), %xmm1
	movss	4(%rsp), %xmm0                  # 4-byte Reload
                                        # xmm0 = mem[0],zero,zero,zero
	movss	(%rsp), %xmm2                   # 4-byte Reload
                                        # xmm2 = mem[0],zero,zero,zero
	subss	%xmm2, %xmm0
	mulss	%xmm1, %xmm0
	addss	%xmm2, %xmm0
	popq	%rax
	.cfi_def_cfa_offset 8
	retq
.Lfunc_end0:
	.size	_Z7uniformff, .Lfunc_end0-_Z7uniformff
	.cfi_endproc
                                        # -- End function
	.section	.rodata.cst4,"aM",@progbits,4
	.p2align	2, 0x0                          # -- Begin function main
.LCPI1_0:
	.long	0x30000000                      # float 4.65661287E-10
.LCPI1_1:
	.long	0x00000000                      # float 0
	.text
	.globl	main
	.type	main,@function
main:                                   # @main
	.cfi_startproc
# %bb.0:
	pushq	%r14
	.cfi_def_cfa_offset 16
	pushq	%rbx
	.cfi_def_cfa_offset 24
	pushq	%rax
	.cfi_def_cfa_offset 32
	.cfi_offset %rbx, -24
	.cfi_offset %r14, -16
	movl	$134217728, %edi                # imm = 0x8000000
	callq	malloc
	movq	%rax, %rbx
	xorl	%r14d, %r14d
.LBB1_1:                                # =>This Inner Loop Header: Depth=1
	callq	rand
	xorps	%xmm0, %xmm0
	cvtsi2ss	%eax, %xmm0
	mulss	.LCPI1_0(%rip), %xmm0
	addss	.LCPI1_1(%rip), %xmm0
	movss	%xmm0, (%rbx,%r14,4)
	incq	%r14
	cmpq	$33554432, %r14                 # imm = 0x2000000
	jne	.LBB1_1
# %bb.2:
	movq	%rsp, %r14
	movl	$134217728, %esi                # imm = 0x8000000
	movq	%r14, %rdi
	callq	hipMalloc
	movq	(%r14), %rdi
	movl	$134217728, %edx                # imm = 0x8000000
	movq	%rbx, %rsi
	movl	$1, %ecx
	callq	hipMemcpy
	movq	(%r14), %rsi
	movl	$134217728, %edx                # imm = 0x8000000
	movq	%rbx, %rdi
	movl	$2, %ecx
	callq	hipMemcpy
	xorps	%xmm0, %xmm0
	cvtss2sd	16000000(%rbx), %xmm0
	movl	$.L.str, %edi
	movb	$1, %al
	callq	printf
	xorl	%eax, %eax
	addq	$8, %rsp
	.cfi_def_cfa_offset 24
	popq	%rbx
	.cfi_def_cfa_offset 16
	popq	%r14
	.cfi_def_cfa_offset 8
	retq
.Lfunc_end1:
	.size	main, .Lfunc_end1-main
	.cfi_endproc
                                        # -- End function
	.type	.L.str,@object                  # @.str
	.section	.rodata.str1.1,"aMS",@progbits,1
.L.str:
	.asciz	"%f\n"
	.size	.L.str, 4

	.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 __hip_cuid_

	.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_
	.amdgcn_target "amdgcn-amd-amdhsa--gfx1100"
	.amdgpu_metadata
---
amdhsa.kernels:  []
amdhsa.target:   amdgcn-amd-amdhsa--gfx1100
amdhsa.version:
  - 1
  - 2
...

	.end_amdgpu_metadata
