gistfile1.txt

#include <limits.h>
#include <stdlib.h>

size_t tmul(int x, int y) {
        long long tv = (long long)x * (long long)y;
        if (tv < 0 || tv > UINT_MAX)
                return -1;
        return tv;
}




        .file   "test2.c"
        .text
        .p2align 4,,15
.globl tmul
        .type   tmul, @function
tmul:
        pushl   %ebp
        movl    $-1, %ecx
        movl    %esp, %ebp
        movl    12(%ebp), %eax
        imull   8(%ebp)
        cmpl    $0, %edx
        ja      .L3
        movl    %eax, %ecx
.L3:
        movl    %ecx, %eax
        popl    %ebp
        ret
        .size   tmul, .-tmul
        .ident  "GCC: (Ubuntu 4.3.3-5ubuntu4) 4.3.3"
        .section        .note.GNU-stack,"",@progbits