Re: [PATCH] MIPS: MIPS32r2 FP MADD instruction set support

2013-03-08 Thread Maciej W. Rozycki
On Thu, 21 Feb 2013, Mike Stump wrote: > > BTW, do you happen to know a way to reliable force all our testsuites NOT > > to delete executables after run? Personally I think it's missing the > > point to have them deleted -- how can one debug any regressions then? > > So, I go into the source a

Re: [PATCH] MIPS: MIPS32r2 FP MADD instruction set support

2013-02-27 Thread Maciej W. Rozycki
On Wed, 27 Feb 2013, Richard Sandiford wrote: > > I checked with one of the AVP engineers and he said: > > > > "madd/msub/nmadd/nmsub.fmt instructions are required for all release 2 > > implementations, > > whether or not that implementation has a 64 bit fpu. They are also > > required for mips64

Re: [PATCH] MIPS: MIPS32r2 FP MADD instruction set support

2013-02-27 Thread Richard Sandiford
Steve Ellcey writes: > From: Maciej W. Rozycki [ma...@codesourcery.com] > >> Steve, would you therefore please do us a favour and check what the AVP >> for MIPS32r2 requires for support of the floating-point MADD instruction >> subset, or preferably, the whole COP1X instruction set? Are these >>

RE: [PATCH] MIPS: MIPS32r2 FP MADD instruction set support

2013-02-27 Thread Steve Ellcey
From: Maciej W. Rozycki [ma...@codesourcery.com] > Steve, would you therefore please do us a favour and check what the AVP > for MIPS32r2 requires for support of the floating-point MADD instruction > subset, or preferably, the whole COP1X instruction set? Are these > instructions only mandatory

Re: [PATCH] MIPS: MIPS32r2 FP MADD instruction set support

2013-02-21 Thread Ramana Radhakrishnan
>> What do other people do? > > We usually can cut and paste the one line and run the one case by hand. Test > cases that don't fall into this category, well, suck, I mean, are more > annoying. > These days I find contrib/repro_fail file.log.useful to rebuild the failing test(s). regards Rama

Re: [PATCH] MIPS: MIPS32r2 FP MADD instruction set support

2013-02-21 Thread Mike Stump
On Feb 20, 2013, at 3:50 PM, Maciej W. Rozycki wrote: > BTW, do you happen to know a way to reliable force all our testsuites NOT > to delete executables after run? Personally I think it's missing the > point to have them deleted -- how can one debug any regressions then? So, I go into the sou

Re: [PATCH] MIPS: MIPS32r2 FP MADD instruction set support

2013-02-21 Thread Maciej W. Rozycki
On Thu, 21 Feb 2013, Richard Sandiford wrote: > > This issue was originally raised here: > > > > http://gcc.gnu.org/ml/gcc-patches/2012-12/msg00863.html > > > > We have a shortcoming in GCC in that we only allow the use half of the FP > > MADD instruction subset (MADD.fmt and MSUB.fmt) in the 6

Re: [PATCH] MIPS: MIPS32r2 FP MADD instruction set support

2013-02-21 Thread Richard Sandiford
"Maciej W. Rozycki" writes: > This issue was originally raised here: > > http://gcc.gnu.org/ml/gcc-patches/2012-12/msg00863.html > > We have a shortcoming in GCC in that we only allow the use half of the FP > MADD instruction subset (MADD.fmt and MSUB.fmt) in the 64-bit/32-register > mode (CP0