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c: ignore initializers for elements of variable-size types [PR93577]

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2020-03-17  Christophe Lyon  <christophe.lyon@linaro.org>

	gcc/
	* c-typeck.c (process_init_element): Handle constructor_type with
	type size represented by POLY_INT_CST.

	gcc/testsuite/
	* gcc.target/aarch64/sve/acle/general-c/sizeless-1.c: Remove
	superfluous dg-error.
	* gcc.target/aarch64/sve/acle/general-c/sizeless-2.c: Likewise.
This commit is contained in:
Christophe Lyon 2020-03-17 09:26:08 +00:00
parent 741ff2a263
commit fd857de807
5 changed files with 12 additions and 3 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2020-03-17 Christophe Lyon <christophe.lyon@linaro.org>
* c-typeck.c (process_init_element): Handle constructor_type with
type size represented by POLY_INT_CST.
2020-03-17 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/94187

2
gcc/c/c-typeck.c
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@ -9968,7 +9968,7 @@ process_init_element (location_t loc, struct c_expr value, bool implicit,
/* Ignore elements of an initializer for a variable-size type.
Those are diagnosed in digest_init. */
if (COMPLETE_TYPE_P (constructor_type)
&& TREE_CODE (TYPE_SIZE (constructor_type)) != INTEGER_CST)
&& !poly_int_tree_p (TYPE_SIZE (constructor_type)))
return;
if (!implicit && warn_designated_init && !was_designated

6
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,9 @@
2020-03-17 Christophe Lyon <christophe.lyon@linaro.org>
* gcc.target/aarch64/sve/acle/general-c/sizeless-1.c: Remove
superfluous dg-error.
* gcc.target/aarch64/sve/acle/general-c/sizeless-2.c: Likewise.
2020-03-17 Jakub Jelinek <jakub@redhat.com>
PR middle-end/94189

1
gcc/testsuite/gcc.target/aarch64/sve/acle/general-c/sizeless-1.c
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@ -83,7 +83,6 @@ statements (int n)
svint8_t array[2]; /* { dg-error {array elements cannot have SVE type 'svint8_t'} } */
svint8_t zero_length_array[0]; /* { dg-error {array elements cannot have SVE type 'svint8_t'} } */
svint8_t empty_init_array[] = {}; /* { dg-error {array elements cannot have SVE type 'svint8_t'} } */
/* { dg-error {empty scalar initializer} "" { target *-*-* } .-1 } */
typedef svint8_t vla_type[n]; /* { dg-error {array elements cannot have SVE type 'svint8_t'} } */
/* Assignment. */

1
gcc/testsuite/gcc.target/aarch64/sve/acle/general-c/sizeless-2.c
View File

@ -83,7 +83,6 @@ statements (int n)
svint8_t array[2]; /* { dg-error {array elements cannot have SVE type 'svint8_t'} } */
svint8_t zero_length_array[0]; /* { dg-error {array elements cannot have SVE type 'svint8_t'} } */
svint8_t empty_init_array[] = {}; /* { dg-error {array elements cannot have SVE type 'svint8_t'} } */
/* { dg-error {empty scalar initializer} "" { target *-*-* } .-1 } */
typedef svint8_t vla_type[n]; /* { dg-error {array elements cannot have SVE type 'svint8_t'} } */
/* Assignment. */