target/7643: H8300 - ___muldi3 is generated for multiplication by long long constant

dhananjayd@kpit.com dhananjayd@kpit.com
Mon Aug 19 23:46:00 GMT 2002


>Number:         7643
>Category:       target
>Synopsis:       H8300 - ___muldi3 is generated for multiplication by long long constant
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Aug 19 23:46:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Dhananjay Deshpande
>Release:        3.0, 3.1
>Organization:
>Environment:
GNU/Linux X H8300
>Description:
The compiler generates call to ___muldi for LL constants.
___muldi is not generated in libgcc unless sizeof(long long ) > 32.
This gives linker error when rand() is used from newlib.
This problem should be there for other targets where sizeof( long long ) is not more than 32.
>How-To-Repeat:
Compile code below with h8300-*-gcc -S and you will see a call to ___muldi3 
void foo()
{ 
	unsigned long long a  ; 
	a = a * 664136223846793005LL ;
}
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:



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