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integrate.c (copy_rtx_and_substitute): When copying an ignored return value, strip REG_FUNCTION_VALUE_P. 

* integrate.c (copy_rtx_and_substitute): When copying
	an ignored return value, strip REG_FUNCTION_VALUE_P.

From-SVN: r38747
This commit is contained in:
J"orn Rennecke 2001-01-06 09:06:13 +00:00 committed by Joern Rennecke
parent 3cccebf27b
commit ea55fa7ab1
2 changed files with 17 additions and 3 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Sat Jan 6 00:09:34 2001 J"orn Rennecke <amylaar@redhat.com>
* integrate.c (copy_rtx_and_substitute): When copying
an ignored return value, strip REG_FUNCTION_VALUE_P.
2001-01-06 Michael Hayes <mhayes@redhat.com> 2001-01-06 Michael Hayes <mhayes@redhat.com>
* loop.c (debug_biv, debug_giv): New. * loop.c (debug_biv, debug_giv): New.

9
gcc/integrate.c
View File

@ -1844,9 +1844,18 @@ copy_rtx_and_substitute (orig, map, for_lhs)
the function doesn't have a return value, error. If the the function doesn't have a return value, error. If the
mode doesn't agree, and it ain't BLKmode, make a SUBREG. */ mode doesn't agree, and it ain't BLKmode, make a SUBREG. */
if (map->inline_target == 0) if (map->inline_target == 0)
{
if (rtx_equal_function_value_matters)
/* This is an ignored return value. We must not
leave it in with REG_FUNCTION_VALUE_P set, since
that would confuse subsequent inlining of the
current function into a later function. */
return gen_rtx_REG (GET_MODE (orig), regno);
else
/* Must be unrolling loops or replicating code if we /* Must be unrolling loops or replicating code if we
reach here, so return the register unchanged. */ reach here, so return the register unchanged. */
return orig; return orig;
}
else if (GET_MODE (map->inline_target) != BLKmode else if (GET_MODE (map->inline_target) != BLKmode
&& mode != GET_MODE (map->inline_target)) && mode != GET_MODE (map->inline_target))
return gen_lowpart (mode, map->inline_target); return gen_lowpart (mode, map->inline_target);