Mercurialcrosstool-ng / annotate
summary | shortlog | changelog | graph | tags | branches | files | changeset | file | latest | revisions | annotate | diff | raw | help
patches/gcc/3.4.0/pr13250-fix.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun May 20 13:48:26 2007 +0000 (2007-05-20)
changeset 112 ea15433daba0
permissions -rw-r--r--
Ah! I finally have a progress bar that doesn't stall the build!
- pipe size in Linux is only 8*512=4096 bytes
- pipe size is not setable
- when the feeding process spits out data faster than the eating
process can read it, then the feeding process stalls after 4KiB
of data sent to the pipe
- for us, the progress bar would spawn a sub-shell every line,
and the sub-shell would in turn spawn a 'date' command.
Which was sloooww as hell, and would cause some kind of a
starvation: the pipe was full most of the time, and the
feeding process was stalled all this time.

Now, we use internal variables and a little hack based onan offset
to determine the elapsed time. Much faster this way, but still
CPU-intensive.
yann@1 
     1
 
See http://gcc.gnu.org/PR13250
yann@1 
     2
 
Fixes bad code generated when compiling SHA256 for SH processor
yann@1 
     3
 






yann@1


     4


===================================================================







yann@1


     5


RCS file: /cvs/gcc/gcc/gcc/config/sh/sh.md,v







yann@1


     6


retrieving revision 1.171







yann@1


     7


retrieving revision 1.172







yann@1


     8


diff -u -r1.171 -r1.172







yann@1


     9


--- gcc/gcc/config/sh/sh.md	2004/05/10 23:25:13	1.171







yann@1


    10


+++ gcc/gcc/config/sh/sh.md	2004/05/28 05:47:36	1.172







yann@1


    11


@@ -2194,7 +2194,7 @@







yann@1


    12


 	parts[0] = gen_reg_rtx (SImode);







yann@1


    13


 	parts[1] = gen_reg_rtx (SImode);







yann@1


    14


 	emit_insn (gen_rotlsi3_16 (parts[2-choice], operands[1]));







yann@1


    15


-	parts[choice-1] = operands[1];







yann@1


    16


+	emit_move_insn (parts[choice-1], operands[1]);







yann@1


    17


 	emit_insn (gen_ashlsi3 (parts[0], parts[0], GEN_INT (8)));







yann@1


    18


 	emit_insn (gen_lshrsi3 (parts[1], parts[1], GEN_INT (8)));







yann@1


    19


 	emit_insn (gen_iorsi3 (operands[0], parts[0], parts[1]));












crosstool-ng