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cse.c (count_reg_usage): When processing an INSNs REG_EQUAL note containing an EXPR_LIST... 

* cse.c (count_reg_usage): When processing an INSNs REG_EQUAL
	note containing an EXPR_LIST, process all the arguments.

From-SVN: r67132
This commit is contained in:
J"orn Rennecke 2003-05-23 20:08:22 +00:00 committed by Joern Rennecke
parent 6c82ad2561
commit 839844befa
2 changed files with 20 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2003-05-23 J"orn Rennecke <joern.rennecke@superh.com>
* cse.c (count_reg_usage): When processing an INSNs REG_EQUAL
note containing an EXPR_LIST, process all the arguments.
Fri May 23 21:19:31 CEST 2003 Jan Hubicka <jh@suse.cz>
Andreas Jaeger <aj@suse.de>

16
gcc/cse.c
View File

@ -7512,7 +7512,21 @@ count_reg_usage (x, counts, dest, incr)
note = find_reg_equal_equiv_note (x);
if (note)
count_reg_usage (XEXP (note, 0), counts, NULL_RTX, incr);
{
rtx eqv = XEXP (note, 0);
if (GET_CODE (eqv) == EXPR_LIST)
/* This REG_EQUAL note describes the result of a function call.
Process all the arguments. */
do
{
count_reg_usage (XEXP (eqv, 0), counts, NULL_RTX, incr);
eqv = XEXP (eqv, 1);
}
while (eqv && GET_CODE (eqv) == EXPR_LIST);
else
count_reg_usage (eqv, counts, NULL_RTX, incr);
}
return;
case EXPR_LIST: