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re PR c++/93046 (ICE in cp_gimplify_init_expr)

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PR c++/93046
	* cp-gimplify.c (cp_gimplify_init_expr): Don't look through
	TARGET_EXPR if it has been gimplified already.

	* g++.dg/ext/cond4.C: New test.

From-SVN: r279884
This commit is contained in:
Jakub Jelinek 2020-01-05 01:49:14 +01:00 committed by Jakub Jelinek
parent 48cb874a04
commit 72036b59a0
4 changed files with 26 additions and 1 deletions
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6
gcc/cp/ChangeLog
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@ -1,3 +1,9 @@
2010-01-05 Jakub Jelinek <jakub@redhat.com>
PR c++/93046
* cp-gimplify.c (cp_gimplify_init_expr): Don't look through
TARGET_EXPR if it has been gimplified already.
2020-01-03 Jason Merrill <jason@redhat.com>
PR c++/93033 - incorrect tree node sharing with array init.

2
gcc/cp/cp-gimplify.c
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@ -523,7 +523,7 @@ cp_gimplify_init_expr (tree *expr_p, gimple_seq *pre_p)
think that such code never uses the TARGET_EXPR as an initializer. If
I'm wrong, we'll abort because the temp won't have any RTL. In that
case, I guess we'll need to replace references somehow. */
if (TREE_CODE (from) == TARGET_EXPR)
if (TREE_CODE (from) == TARGET_EXPR && TARGET_EXPR_INITIAL (from))
from = TARGET_EXPR_INITIAL (from);
/* If we might need to clean up a partially constructed object, break down

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2010-01-05 Jakub Jelinek <jakub@redhat.com>
PR c++/93046
* g++.dg/ext/cond4.C: New test.
2020-01-04 Tobias Burnus <tobias@codesourcery.com>
PR fortran/91640

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gcc/testsuite/g++.dg/ext/cond4.C Normal file
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@ -0,0 +1,14 @@
// PR c++/93046
// { dg-do compile }
// { dg-options "" }
struct S {
S (int);
operator bool ();
};
S
foo ()
{
return S (1) ? : S (2);
}