test.c
```
void my_fun(int *arr, int N)
{
int sum = 0;
for (int i = 0; i < N; ++i) {
sum += arr[i];
}
}
int main(void)
{
return 0;
}
```
clang -c -g test.c ; objdump -S test.o > test.s
`my_fun` appears twice in the disassembly code.
Excerpt of test.s:
```
void my_fun(int *arr, int N)
{
0: 55 push %rbp
1: 48 89 e5 mov %rsp,%rbp
4: 48 89 7d f8 mov %rdi,-0x8(%rbp)
8: 89 75 f4 mov %esi,-0xc(%rbp)
int sum = 0;
b: c7 45 f0 00 00 00 00 movl $0x0,-0x10(%rbp)
for (int i = 0; i < N; ++i) {
12: c7 45 ec 00 00 00 00 movl $0x0,-0x14(%rbp)
19: 8b 45 ec mov -0x14(%rbp),%eax
1c: 3b 45 f4 cmp -0xc(%rbp),%eax
1f: 0f 8d 21 00 00 00 jge 46 <my_fun+0x46>
sum += arr[i];
25: 48 63 45 ec movslq -0x14(%rbp),%rax
29: 48 8b 4d f8 mov -0x8(%rbp),%rcx
2d: 8b 14 81 mov (%rcx,%rax,4),%edx
30: 03 55 f0 add -0x10(%rbp),%edx
33: 89 55 f0 mov %edx,-0x10(%rbp)
void my_fun(int *arr, int N)
{
int sum = 0;
for (int i = 0; i < N; ++i) {
36: 8b 45 ec mov -0x14(%rbp),%eax
39: 05 01 00 00 00 add $0x1,%eax
3e: 89 45 ec mov %eax,-0x14(%rbp)
41: e9 d3 ff ff ff jmpq 19 <my_fun+0x19>
sum += arr[i];
}
}
```
clang:
Ubuntu clang version 3.6.2-svn240577-1~exp1 (branches/release_36)
(based on LLVM 3.6.2) Target: x86_64-pc-linux-gnu
Thread model: posix
objdump:
GNU objdump (GNU Binutils for Ubuntu) 2.24
--
Best Regards
Yours faithfully
Albert Netymk
_______________________________________________
bug-binutils mailing list
bug-binutils@gnu.org
https://lists.gnu.org/mailman/listinfo/bug-binutils
