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authorJeffrey A Law <law@cygnus.com>1998-10-19 10:30:23 +0000
committerJeff Law <law@gcc.gnu.org>1998-10-19 04:30:23 -0600
commitb1fc873cc23de79ce54a9070f55cb26189ad6f0d (patch)
treee13838fc2673de3bf7ce00aeac6c7c038cd3e4ab /gcc/reload1.c
parent495e6ebb4047743940cce85d7367874470fa5098 (diff)
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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/reload1.c')
-rw-r--r--gcc/reload1.c13
1 files changed, 13 insertions, 0 deletions
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: