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re PR c++/31337 (ICE with statement expression)

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PR c++/31337
        * gimplify.c (gimplify_modify_expr): Discard the assignment of
        zero-sized types after calling gimplify_modify_expr_rhs.

From-SVN: r127840
This commit is contained in:
Jason Merrill
2007-08-27 18:04:37 -04:00
committed by Jason Merrill
parent 1e6b8c4419
commit ffef818294
2 changed files with 16 additions and 8 deletions
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6
gcc/ChangeLog
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@@ -1,3 +1,9 @@
2007-08-27 Jason Merrill <jason@redhat.com>
PR c++/31337
* gimplify.c (gimplify_modify_expr): Discard the assignment of
zero-sized types after calling gimplify_modify_expr_rhs.
2007-08-24 Jakub Jelinek <jakub@redhat.com>
PR debug/32610

18
gcc/gimplify.c
View File

@@ -3532,8 +3532,16 @@ gimplify_modify_expr (tree *expr_p, tree *pre_p, tree *post_p, bool want_value)
gcc_assert (TREE_CODE (*expr_p) == MODIFY_EXPR
|| TREE_CODE (*expr_p) == INIT_EXPR);
/* For zero sized types only gimplify the left hand side and right hand side
as statements and throw away the assignment. */
/* See if any simplifications can be done based on what the RHS is. */
ret = gimplify_modify_expr_rhs (expr_p, from_p, to_p, pre_p, post_p,
want_value);
if (ret != GS_UNHANDLED)
return ret;
/* For zero sized types only gimplify the left hand side and right hand
side as statements and throw away the assignment. Do this after
gimplify_modify_expr_rhs so we handle TARGET_EXPRs of addressable
types properly. */
if (zero_sized_type (TREE_TYPE (*from_p)))
{
gimplify_stmt (from_p);
@@ -3544,12 +3552,6 @@ gimplify_modify_expr (tree *expr_p, tree *pre_p, tree *post_p, bool want_value)
return GS_ALL_DONE;
}
/* See if any simplifications can be done based on what the RHS is. */
ret = gimplify_modify_expr_rhs (expr_p, from_p, to_p, pre_p, post_p,
want_value);
if (ret != GS_UNHANDLED)
return ret;
/* If the value being copied is of variable width, compute the length
of the copy into a WITH_SIZE_EXPR. Note that we need to do this
before gimplifying any of the operands so that we can resolve any