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Fix ia64 spec95 134.perl miscompilation.

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* expr.c (expand_assignment): For a CALL_EXPR, special case PARM_DECL
	same as VAR_DECL.

From-SVN: r32463
This commit is contained in:
Jim Wilson 2000-03-10 04:03:10 +00:00 committed by Jim Wilson
parent 4ed442c915
commit 1858863bd5
2 changed files with 11 additions and 5 deletions
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gcc/ChangeLog
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@ -1,3 +1,8 @@
Thu Mar 9 20:01:38 2000 Jim Wilson <wilson@cygnus.com>
* expr.c (expand_assignment): For a CALL_EXPR, special case PARM_DECL
same as VAR_DECL.
2000-03-09 Benjamin Kosnik <bkoz@cygnus.com>
* config/alpha/linux.h (WCHAR_TYPE): Make consistent.

11
gcc/expr.c
View File

@ -3472,13 +3472,14 @@ expand_assignment (to, from, want_value, suggest_reg)
val = setjmp (buf) on machines where reference to val
requires loading up part of an address in a separate insn.
Don't do this if TO is a VAR_DECL whose DECL_RTL is REG since it might be
a promoted variable where the zero- or sign- extension needs to be done.
Handling this in the normal way is safe because no computation is done
before the call. */
Don't do this if TO is a VAR_DECL or PARM_DECL whose DECL_RTL is REG
since it might be a promoted variable where the zero- or sign- extension
needs to be done. Handling this in the normal way is safe because no
computation is done before the call. */
if (TREE_CODE (from) == CALL_EXPR && ! aggregate_value_p (from)
&& TREE_CODE (TYPE_SIZE (TREE_TYPE (from))) == INTEGER_CST
&& ! (TREE_CODE (to) == VAR_DECL && GET_CODE (DECL_RTL (to)) == REG))
&& ! ((TREE_CODE (to) == VAR_DECL || TREE_CODE (to) == PARM_DECL)
&& GET_CODE (DECL_RTL (to)) == REG))
{
rtx value;