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Vineet Gupta 67a9a71183 [ARC]PR 88409: miscompilation due to missing cc clobber in longlong.h macros 
simple test such as below was failing.

| void main(int argc, char *argv[])
| {
|    size_t total_time = 115424;                       // expected 115.424
|    double secs = (double)total_time/(double)1000;
|    printf("%s %d %lf\n", "secs", total_time, secs);  // prints 113.504
|    printf("%d\n", (size_t)secs);
| }

The printf eventually called into glibc stdlib/divrem.c:__mpn_divrem()
which uses the __arc__ specific inline asm macros from longlong.h which
were causing miscompilation.

include/
2019-03-28  Vineet Gupta <vgupta@synopsys.com>

        PR 89877

        * longlong.h [__arc__] (add_ssaaaa): Add cc clobber
        (sub_ddmmss): Likewise.

Signed-off-by: Claudiu Zissulescu <claziss@gmail.com>

From-SVN: r270118
2019-04-03 11:53:03 +02:00
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[ARC]PR 88409: miscompilation due to missing cc clobber in longlong.h macros
2019-04-03 11:53:03 +02:00
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libiberty.h
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longlong.h
[ARC]PR 88409: miscompilation due to missing cc clobber in longlong.h macros
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