procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

c-typeck.c (process_init_element): Don't save_expr COMPOUND_LITERAL_EXPR if just its initializer will be used.

Browse source 
* c-typeck.c (process_init_element): Don't save_expr
	COMPOUND_LITERAL_EXPR if just its initializer will be used.

	* gcc.dg/gnu89-init-1.c: Add new tests.

From-SVN: r48868
This commit is contained in:
Jakub Jelinek 2002-01-15 12:00:43 +01:00 • committed by Jakub Jelinek
parent 9631a0e117
commit 7c94ce7f87
4 changed files with 27 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
gcc/ChangeLog
View file

@ -1,3 +1,8 @@
2002-01-15 Jakub Jelinek <jakub@redhat.com>
* c-typeck.c (process_init_element): Don't save_expr
COMPOUND_LITERAL_EXPR if just its initializer will be used.
2002-01-15 David Edelsohn <edelsohn@gnu.org>
* config/rs6000/rs6000.c (rs6000_output_function_epilogue): Do not

9
gcc/c-typeck.c
View file

@ -6618,7 +6618,14 @@ process_init_element (value)
/* In the case of [LO ... HI] = VALUE, only evaluate VALUE once. */
if (constructor_range_stack)
value = save_expr (value);
{
/* If value is a compound literal and we'll be just using its
content, don't put it into a SAVE_EXPR. */
if (TREE_CODE (value) != COMPOUND_LITERAL_EXPR
|| !require_constant_value
|| flag_isoc99)
value = save_expr (value);
}
while (1)
{

4
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,7 @@
2002-01-15 Jakub Jelinek <jakub@redhat.com>
* gcc.dg/gnu89-init-1.c: Add new tests.
2002-01-15 Andreas Jaeger <aj@suse.de>
* gcc.dg/i386-mmx-1.c: Also run on x86-64.

10
gcc/testsuite/gcc.dg/gnu89-init-1.c
View file

@ -28,6 +28,8 @@ struct C g[3] = { [2] = (struct C) { 13 }, [1] = (const struct C) { 12 } };
struct D h = { .j = (struct C) { 15 }, .i = 14 };
struct D i[2] = { [1].j = (const struct C) { 17 },
[0] = { 0, (struct C) { 16 } } };
struct C j[2][3] = { [0 ... 1] = { [0 ... 2] = (struct C) { 26 } } };
struct C k[3][2] = { [0 ... 2][0 ... 1] = (const struct C) { 27 } };
int main (void)
{
@ -55,5 +57,13 @@ int main (void)
abort ();
if (i[0].i || i[0].j.i != 16 || i[1].i || i[1].j.i != 17)
abort ();
if (j[0][0].i != 26 || j[0][1].i != 26 || j[0][2].i != 26)
abort ();
if (j[1][0].i != 26 || j[1][1].i != 26 || j[1][2].i != 26)
abort ();
if (k[0][0].i != 27 || k[0][1].i != 27 || k[1][0].i != 27)
abort ();
if (k[1][1].i != 27 || k[2][0].i != 27 || k[2][1].i != 27)
abort ();
exit (0);
}