[Bug target/61483] [AArch64] builtin va_start incorrectly initializes the field of va_list for incoming unnamed arguments on the stack

[yufeng at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61483

--- Comment #1 from Yufeng Zhang <yufeng at gcc dot gnu.org> ---
Author: yufeng
Date: Tue Jun 17 09:39:22 2014
New Revision: 211733

URL: https://gcc.gnu.org/viewcvs?rev=211733&root=gcc&view=rev
Log:
gcc/

    PR target/61483
    * config/aarch64/aarch64.c (aarch64_layout_arg): Add new local
    variable 'size'; calculate 'size' right in the front; use
    'size' to compute 'nregs' (when 'allocate_ncrn != 0') and
    pcum->aapcs_stack_words.

gcc/testsuite/

    PR target/61483
    * gcc.target/aarch64/aapcs64/type-def.h (struct hfa_fx2_t): New type.
    * gcc.target/aarch64/aapcs64/va_arg-13.c: New test.
    * gcc.target/aarch64/aapcs64/va_arg-14.c: Ditto.
    * gcc.target/aarch64/aapcs64/va_arg-15.c: Ditto.

Added:
    trunk/gcc/testsuite/gcc.target/aarch64/aapcs64/va_arg-13.c
    trunk/gcc/testsuite/gcc.target/aarch64/aapcs64/va_arg-14.c
    trunk/gcc/testsuite/gcc.target/aarch64/aapcs64/va_arg-15.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/aarch64/aarch64.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.target/aarch64/aapcs64/type-def.h