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Re: target/5728: GCC generated non-optimal code for Hitachi SH-4
- From: rth at gcc dot gnu dot org
- To: gcc-bugs at gcc dot gnu dot org, gcc-prs at gcc dot gnu dot org, michaels at stochastik dot rwth-aachen dot de, nobody at gcc dot gnu dot org, rth at gcc dot gnu dot org
- Date: 30 Mar 2002 02:41:28 -0000
- Subject: Re: target/5728: GCC generated non-optimal code for Hitachi SH-4
- Reply-to: rth at gcc dot gnu dot org, gcc-bugs at gcc dot gnu dot org, gcc-prs at gcc dot gnu dot org, michaels at stochastik dot rwth-aachen dot de, nobody at gcc dot gnu dot org, rth at gcc dot gnu dot org, gcc-gnats at gcc dot gnu dot org
Synopsis: GCC generated non-optimal code for Hitachi SH-4
Responsible-Changed-From-To: unassigned->rth
Responsible-Changed-By: rth
Responsible-Changed-When: Fri Mar 29 18:41:27 2002
Responsible-Changed-Why:
.
State-Changed-From-To: open->closed
State-Changed-By: rth
State-Changed-When: Fri Mar 29 18:41:27 2002
State-Changed-Why:
Fixed for gcc 3.1. Current output is
dmulu.l r5,r4
nop
sts mach,r0
rts
add #1,r0
I don't know what the nop is for (one of the sh maintainers
would have to answer that), but the register movement issue
has been delt with.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=5728