gistfile1.txt

$ cat test.c
#import <stdio.h>
#define NYBBLE 4

int main(int argc, const char * argv[]) {
    unsigned long t = (unsigned long)argc;

    t = (t << NYBBLE) | (t >> (sizeof(t) * 8 - NYBBLE));
    
    printf("t is now 0x%lx\n", t);
        
    return 0;
}

$ clang -S -O1 -o - test.c
	.section	__TEXT,__text,regular,pure_instructions
	.globl	_main
	.align	4, 0x90
_main:                                  ## @main
	.cfi_startproc
## BB#0:
	pushq	%rbp
Ltmp2:
	.cfi_def_cfa_offset 16
Ltmp3:
	.cfi_offset %rbp, -16
	movq	%rsp, %rbp
Ltmp4:
	.cfi_def_cfa_register %rbp
	movslq	%edi, %rsi
	rolq	$4, %rsi
	leaq	L_.str(%rip), %rdi
	xorb	%al, %al
	callq	_printf
	xorl	%eax, %eax
	popq	%rbp
	ret
	.cfi_endproc

	.section	__TEXT,__cstring,cstring_literals
L_.str:                                 ## @.str
	.asciz	 "t is now 0x%lx\n"


.subsections_via_symbols