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Re: [BENCH] Improvements to popping x87 stack in reg-stack.c
- From: Richard Henderson <rth at redhat dot com>
- To: Uros Bizjak <uros at kss-loka dot si>
- Cc: Roger Sayle <roger at eyesopen dot com>, gcc-patches at gcc dot gnu dot org
- Date: Wed, 1 Dec 2004 00:51:22 -0800
- Subject: Re: [BENCH] Improvements to popping x87 stack in reg-stack.c
- References: <41AADBDD.2030706@kss-loka.si> <20041130021009.GB1489@redhat.com> <41AD850F.4090208@kss-loka.si>
On Wed, Dec 01, 2004 at 09:47:11AM +0100, Uros Bizjak wrote:
> "fstp r" has latency of 6, reciprocal throughput of 1, uses port 0 and
> execution unit mov.
Surely that value is for a store to memory, not a register to
register move....
r~