https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98789
Bug ID: 98789
Summary: Error with bit-operation after macro operation
Product: gcc
Version: 8.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: maxim81m at mail dot ru
Target Milestone: ---
Created attachment 50029
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50029&action=edit
contains data for Debian10: README (compilers parameters), 1.i; 1.c; 1.s; 1.o
files
Good Day.
Error on x86-64 platform for Slackware 12 (gcc 4.3.3) and Debian 10 (gcc
8.3.0).
In platforms i386 works good.
Build command: gcc -save-temps 1.c
Running: ./a.out
( I did rename 1.c to 1.cpp and build with g++ error is same )
The compilers parameters are in attachment.
CODE:
1 #include <stdio.h>
2
3 int main()
4 {
5
6 typedef unsigned long int UINT4;
7
8 #define F(x, y, z) (((x) & (y)) | ((~x) & (z)))
9 #define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
10
11 UINT4 a, b, c, d, x;
12
13 a = 0x0da0d5a9;
14 printf("%010x\n", a ); // result: 0x0da0d5a9
15 a = ROTATE_LEFT(a, 7);
16 printf("%010x\n", a ); // result: 0xd06ad486
17
18 printf("\n" );
19
20 a = 0x0da0d5a9;
21 printf("%010x\n", a ); // result: 0x0da0d5a9
22 a = ROTATE_LEFT(a, 7);
23 printf("%010x\n", a ); // result: 0xd06ad486 <<< OK
24
25 printf("\n" );
26
27 x = 0x36363132;
28 a = 0x67452301;
29 b = 0xefcdab89;
30 c = 0x98badcfe;
31 d = 0x10325476;
32
33 a += F ((b), (c), (d)) + (x) + (UINT4)(3614090360U);
34 printf("%010x\n", a ); // result: 0x0da0d5a9 as in string 13
35 a = ROTATE_LEFT(a, 7);
36 printf("%010x\n", a ); // result: 0xd06ad586 <<< ERROR
37
38 return 0;
39 }
40
Thank You for a time.
