Bug with using of %z0 in inline asm directives

[Alexey Tigarev]

Hello ! 

I have found such a bug in GCC compiler (egcs-2.90.29 980515 (egcs-1.0.3
release))

Here's bug description :

I defined a template function :

template <class Value>
void test()
{
 Value arg;
 int shift;
 scanf("%d%d", &shift, &arg);
 ROR(shift, arg); 
 printf("%d\n", arg);
}

and used in it the following macro :

#define ROR(arg, shift) \
        __asm__ volatile ("ror%z0 %b1, %0" : "=r" (arg) : "c" (shift), "0" (arg))


GCC output was:

test_asm_macro.cc: In function `void test()':
test_asm_macro.cc:11: Internal compiler error 40.
test_asm_macro.cc:11: Please submit a full bug report to `egcs-bugs@cygnus.com'.

Version of compiler :
egcs-2.90.29 980515 (egcs-1.0.3 release)

Here's 'test_asm_macro.cc' :

//////////////////////////// test_asm_macro.cc ////////////////////////////
#include <stdio.h>

#define ROR(arg, shift) \
     __asm__ volatile ("ror%z0 %b1, %0" : "=r" (arg) : "c" (shift), "0" (arg))

template <class Value>
void test()
{
 Value arg;
 int shift;
 scanf("%d%d", &shift, &arg);
 ROR(shift, arg); 
 printf("%d\n", arg);
}

void main()
{
 test<int>();
}

////////////////////////// End of test_asm_macro.cc ///////////////////////

The same error occured when I removed template function :

///////////////////////////////////////////////////////////////////////////
#include <stdio.h>

#define ROR(arg, shift) \
    __asm__ volatile ("ror%z0 %b1, %0" : "=r" (arg) : "c" (shift), "0" (arg))

void main()
{
 int arg;
 int shift;
 scanf("%d%d", &shift, &arg);
 ROR(shift, arg); 
 printf("%d\n", arg);
}
////////////////////////////////////////////////////////////////////////////


SY: Tigra           [ UNIX ]  [ RL ]  [ IMEM ]  [ OHN ]  [ ACM ] 
atigarev@acm.org    http://www.rl.odessa.ua/~tigra  ICQ #95550