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decl.c (store_return_init): Use mode of old RTL generated for DECL_RESULT, not the mode of DECL_RESULT itself.

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* decl.c (store_return_init): Use mode of old RTL generated for
	DECL_RESULT, not the mode of DECL_RESULT itself.
	* semantics.c (finish_named_return_value): Set DECL_UNINLINABLE
	for functions that used named return values.

From-SVN: r31092
This commit is contained in:
Mark Mitchell 1999-12-26 15:28:18 +00:00 committed by Mark Mitchell
parent 1d691c5344
commit f0ad3f4675
5 changed files with 23 additions and 3 deletions
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7
gcc/cp/ChangeLog
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@ -1,3 +1,10 @@
1999-12-26 Mark Mitchell <mark@codesourcery.com>
* decl.c (store_return_init): Use mode of old RTL generated for
DECL_RESULT, not the mode of DECL_RESULT itself.
* semantics.c (finish_named_return_value): Set DECL_UNINLINABLE
for functions that used named return values.
1999-12-24 Mark Mitchell <mark@codesourcery.com>
* semantics.c (expand_body): Use

9
gcc/cp/decl.c
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@ -13445,7 +13445,14 @@ store_return_init (decl)
if (DECL_REGISTER (decl))
{
original_result_rtx = DECL_RTL (decl);
DECL_RTL (decl) = gen_reg_rtx (DECL_MODE (decl));
/* Note that the mode of the old DECL_RTL may be wider than the
mode of DECL_RESULT, depending on the calling conventions for
the processor. For example, on the Alpha, a 32-bit integer
is returned in a DImode register -- the DECL_RESULT has
SImode but the DECL_RTL for the DECL_RESULT has DImode. So,
here, we use the mode the back-end has already assigned for
the return value. */
DECL_RTL (decl) = gen_reg_rtx (GET_MODE (original_result_rtx));
}
}

5
gcc/cp/semantics.c
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@ -1203,6 +1203,11 @@ finish_named_return_value (return_id, init)
store_return_init (decl);
}
}
/* Don't use tree-inlining for functions with named return values.
That doesn't work properly because we don't do any translation of
the RETURN_INITs when they are copied. */
DECL_UNINLINABLE (current_function_decl) = 1;
}
/* Cache the value of this class's main virtual function table pointer

2
gcc/testsuite/g++.old-deja/g++.oliva/nameret1.C
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@ -1,3 +1,4 @@
// Build don't link:
// Copyright (C) 1999 Free Software Foundation
// by Alexandre Oliva <oliva@lsd.ic.unicamp.br>
@ -5,7 +6,6 @@
// distilled from libg++'s Rational.cc
// Special g++ Options:
// crash test - XFAIL sparc64*-*-* sparcv9*-*-* alpha*-*-*
inline int bar () return r {}

3
gcc/testsuite/g++.old-deja/g++.oliva/nameret2.C
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@ -1,3 +1,4 @@
// Build don't link:
// Copyright (C) 1999 Free Software Foundation
// by Alexandre Oliva <oliva@lsd.ic.unicamp.br>
@ -11,4 +12,4 @@ inline int bar () return r {}
int& foo (int& x) {
bar ();
return x;
} // gets bogus error - XFAIL *-*-*
}