pr11949-fix.patch

来自「linux下编译交叉工具链的工具源码」· PATCH 代码 · 共 62 行

Message-Id: [e-mail]
From: Matt Kraai kraai at alumni dot cmu dot edu
To: gcc-patches at gcc dot gnu dot org
Date: Fri, 22 Aug 2003 09:00:24 -0700
Subject: PR 11949

Howdy,

I've backported the following patch from the mainline to the 3.3
branch to fix PR 11949.

Bootstrapped and regression tested on powerpc-unknown-linux-gnu.

OK to commit?

	PR c/11949
	Backport from mainline:

	2003-05-05  Aldy Hernandez  [e-mail]

	* testsuite/gcc.c-torture/compile/simd-6.c: New.

	* c-typeck.c (digest_init): Handle arrays of vector constants.

Index: gcc/c-typeck.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/c-typeck.c,v
retrieving revision 1.213.2.8
diff -3 -c -p -r1.213.2.8 c-typeck.c
*** gcc/gcc/c-typeck.c	19 Aug 2003 01:42:35 -0000	1.213.2.8
--- gcc/gcc/c-typeck.c	22 Aug 2003 09:24:03 -0000
*************** digest_init (type, init, require_constan
*** 4765,4772 ****
    if (code == VECTOR_TYPE
        && comptypes (TREE_TYPE (inside_init), type)
        && TREE_CONSTANT (inside_init))
!     return build_vector (type, TREE_OPERAND (inside_init, 1));
! 
  
    /* Any type can be initialized
       from an expression of the same type, optionally with braces.  */
--- 4765,4778 ----
    if (code == VECTOR_TYPE
        && comptypes (TREE_TYPE (inside_init), type)
        && TREE_CONSTANT (inside_init))
!     {
!       if (TREE_CODE (inside_init) == VECTOR_CST
! 	  && comptypes (TYPE_MAIN_VARIANT (TREE_TYPE (inside_init)),
! 			TYPE_MAIN_VARIANT (type)))
! 	return inside_init;
!       else
! 	return build_vector (type, CONSTRUCTOR_ELTS (inside_init));
!     }
  
    /* Any type can be initialized
       from an expression of the same type, optionally with braces.  */

typedef int __attribute__((mode(V2SI))) vec;

vec a[] = {(vec) {1, 2}, {3, 4}};