http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46198
Uros Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |INVALID
--- Comment #1 from Uros Bizjak <ubizjak at gmail dot com> 2010-10-27 18:00:13
UTC ---
This is all what TARGET_INTER_UNIT_MOVES is for. On AMD (and generic) targets,
TARGET_INTER_UNIT_MOVES is disabled, for -march=core2 is enabled.
The situation is thus totally under control ;)
I recommend that you read [1], especially:
Part 2: Optimizing subroutines in assembly language: An optimization guide for
x86 platforms
Part 3: The microarchitecture of Intel, AMD and VIA CPUs: An optimization guide
for assembly programmers and compiler makers
Part 4: Instruction tables: Lists of instruction latencies, throughputs and
micro-operation breakdowns for Intel, AMD and VIA CPUs
[1] http://www.agner.org/optimize/
