| Commit message (Collapse) | Author | Age | Files | Lines | |
|---|---|---|---|---|---|
| * | host-utils: Improve mulu64 and muls64 | Richard Henderson | 2013-02-17 | 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> | ||||
| * | host-utils: Use __int128_t for mul[us]64 | Richard Henderson | 2013-02-17 | 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> | ||||
| * | build: move libqemuutil.a components to util/ | Paolo Bonzini | 2013-01-12 | 1 | -0/+105 |
| Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> | |||||
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| HQEMU | Raptor Engineering, LLC |
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