id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	field_blocks	field_dependson	field_seealso
739	IA-64 FP possibly broken	Jiří Zárevúcky	Jakub Jermář	"libgcc for IA-64 uses floating-point instructions to implement 64b integer division and modulo. The unsigned modulo (see [https://github.com/HelenOS/gcc/blob/8_2_0-helenos/libgcc/config/ia64/lib1funcs.S#L326 source]) however gives incorrect results for large dividends.

Superficially, it seems as if the operand is interpreted as signed, returning the signed (negative) modulo result instead of the correct unsigned one, however I haven't confirmed this.
While this might be problem in the libgcc assembly, I'm more inclined to suspect that the problem lies in our FP support."	defect	closed	major	0.8.0	helenos/unspecified	mainline	fixed