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| author | Jeffrey A Law <law@cygnus.com> | 1998-10-19 10:30:23 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1998-10-19 04:30:23 -0600 |
| commit | b1fc873cc23de79ce54a9070f55cb26189ad6f0d (patch) | |
| tree | e13838fc2673de3bf7ce00aeac6c7c038cd3e4ab /gcc | |
| parent | 495e6ebb4047743940cce85d7367874470fa5098 (diff) | |
| download | gcc-b1fc873cc23de79ce54a9070f55cb26189ad6f0d.zip gcc-b1fc873cc23de79ce54a9070f55cb26189ad6f0d.tar.gz gcc-b1fc873cc23de79ce54a9070f55cb26189ad6f0d.tar.bz2 | |
reload1.c (reload_reg_free_before_p): Hack.
* reload1.c (reload_reg_free_before_p): Hack. Return 0 if EQUIV
is nonzero. This is temporary!
From-SVN: r23174
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/reload1.c | 13 |
2 files changed, 16 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d298531..0c34c6c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -11,6 +11,9 @@ Mon Oct 19 10:45:40 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de> Mon Oct 19 10:28:15 1998 Jeffrey A Law (law@cygnus.com) + * reload1.c (reload_reg_free_before_p): Hack. Return 0 if EQUIV + is nonzero. This is temporary! + * sched.c (update_flow_info): Handle death notes made invalid by instruction splitting. Partially reverts Oct 15, 1998 patch. * haifa-sched.c (update_flow_info): Likewise. diff --git a/gcc/reload1.c b/gcc/reload1.c index 274290a..74d5ed4 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -5044,6 +5044,19 @@ reload_reg_free_before_p (regno, opnum, type, equiv) { int i; + /* The code to handle EQUIV below is wrong. + + If we wnat to know if a value in a particular reload register is available + at a particular point in time during reloading, we must check *all* + prior reloads to see if they clobber the value. + + Note this is significantly different from determining when a register is + free for usage in a reload! + + This change is temporary. It will go away. */ + if (equiv) + return 0; + switch (type) { case RELOAD_FOR_OTHER_ADDRESS: |