5 Commits

Author	SHA1	Message	Date
Russ Cox	d42495aa80	cmd/cc: add PREFETCH built-in (like SET, USED) ... This makes it possible to inline the prefetch of upcoming memory addresses during garbage collection, instead of needing to flush registers, make a function call, and reload registers. On garbage collection-heavy workloads, this results in a 5% speedup. Fixes #3493. R=dvyukov, ken, r, dave CC=golang-dev https://golang.org/cl/5990066	2012-05-02 16:22:56 -04:00
Russ Cox	1d26908d3f	build: use gcc -Werror ... Better to fix the warnings that we find. R=iant CC=golang-dev https://golang.org/cl/4406042	2011-04-13 16:18:09 -04:00
Russ Cox	9e2f2fcd2e	compilers were inconsistent about ... whether no register argument was REGARG == 0 or REGARG < 0. use REGARG < 0 because arm needs 0 for R0. R=ken OCL=31562 CL=31566	2009-07-13 19:20:43 -07:00
Ken Thompson	4f49b88dda	optimizer bug w STOstring ... R=r OCL=23820 CL=23820	2009-01-29 15:13:36 -08:00
Russ Cox	4dee747fb9	8a, 8c, and 8l from inferno distribution ... R=r DELTA=19539 (19539 added, 0 deleted, 0 changed) OCL=22109 CL=22109	2009-01-06 09:41:38 -08:00