riscv-gnu-toolchain/qemu.git - Unnamed repository; edit this file 'description' to name the repository.

Age	Commit message (Collapse)	Author	Files	Lines
2013-02-17	host-utils: Improve mulu64 and muls64	Richard Henderson	1	-54/+38
	The new formulation makes better use of add-with-carry type insns that the host may have. Use gcc's sign adjustment trick to avoid having to perform a 128-bit negation. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-02-17	host-utils: Use __int128_t for mul[us]64	Richard Henderson	1	-2/+2
	Replace some x86_64 specific inline assembly with something that all 64-bit hosts ought to optimize well. At worst this becomes a call to the gcc __multi3 routine, which is no worse than our implementation in util/host-utils.c. With gcc 4.7, we get identical code generation for x86_64. We now get native multiplication on ia64 and s390x hosts. With minor improvements to gcc we can get it for ppc64 as well. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-12	build: move libqemuutil.a components to util/	Paolo Bonzini	1	-0/+105
	Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>