procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Do not handle dead code via conditional execution if special handling is needed

Browse source 
From-SVN: r34512
This commit is contained in:
Michael Meissner 2000-06-13 02:23:56 +00:00 • committed by Michael Meissner
parent 088eb5a274
commit 89d237bf18
2 changed files with 10 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
gcc/ChangeLog
View file

@ -1,3 +1,9 @@
2000-06-12 Michael Meissner <meissner@redhat.com>
* ifcvt.c (dead_or_predicable): Don't do conditional execution
path if the machine needs extra support to do conditional
execution.
Mon Jun 12 17:04:17 2000 Jeffrey A Law (law@cygnus.com)
* print-rtl.c (print_rtx, case MEM): Use HOST_WIDE_INT_PRINT_DEC

4
gcc/ifcvt.c
View file

@ -1865,6 +1865,9 @@ dead_or_predicable (test_bb, merge_bb, other_bb, new_dest, reversep)
end = PREV_INSN (end);
}
/* Disable handling dead code by conditional execution if the machine needs
to do anything funny with the tests, etc. */
#ifndef IFCVT_MODIFY_TESTS
if (HAVE_conditional_execution)
{
/* In the conditional execution case, we have things easy. We know
@ -1896,6 +1899,7 @@ dead_or_predicable (test_bb, merge_bb, other_bb, new_dest, reversep)
earliest = jump;
}
else
#endif
{
/* In the non-conditional execution case, we have to verify that there
are no trapping operations, no calls, no references to memory, and