diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/mips/mips.c | 19 |
2 files changed, 24 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index ab62668..d581d45 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2003-09-25 Richard Sandiford <rsandifo@redhat.com> + + * config/mips/mips.c (mips_va_arg): Handle arguments that must be + passed on the stack. + 2003-09-25 Nathanael Nerode <neroden@gcc.gnu.org> * config.gcc (widely ported systems section): Mostly alphabetize diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c index 0f0a680..3a9aac3 100644 --- a/gcc/config/mips/mips.c +++ b/gcc/config/mips/mips.c @@ -4277,6 +4277,7 @@ mips_va_arg (tree valist, tree type) { /* Not EABI. */ int align; + HOST_WIDE_INT min_offset; /* ??? The original va-mips.h did always align, despite the fact that alignments <= UNITS_PER_WORD are preserved by the va_arg @@ -4295,6 +4296,24 @@ mips_va_arg (tree valist, tree type) t = build (PLUS_EXPR, TREE_TYPE (valist), valist, build_int_2 (align - 1, 0)); t = build (BIT_AND_EXPR, TREE_TYPE (t), t, build_int_2 (-align, -1)); + + /* If arguments of type TYPE must be passed on the stack, + set MIN_OFFSET to the offset of the first stack parameter. */ + if (!MUST_PASS_IN_STACK (TYPE_MODE (type), type)) + min_offset = 0; + else if (TARGET_NEWABI) + min_offset = current_function_pretend_args_size; + else + min_offset = REG_PARM_STACK_SPACE (current_function_decl); + + /* Make sure the new address is at least MIN_OFFSET bytes from + the incoming argument pointer. */ + if (min_offset > 0) + t = build (MAX_EXPR, TREE_TYPE (valist), t, + make_tree (TREE_TYPE (valist), + plus_constant (virtual_incoming_args_rtx, + min_offset))); + t = build (MODIFY_EXPR, TREE_TYPE (valist), valist, t); expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL); |