OpenE2K
/
gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

i386.c (init_cumulative_args): Set mmx/sse registers available for use only when TARGET_MMX/_SSE is set... 

* config/i386/i386.c (init_cumulative_args): Set mmx/sse registers
        available for use only when TARGET_MMX/_SSE is set, and check for
        variable argument function if any register count is non-zero.
        (function_arg): Correctly suppress repeated warnings for passing SSE
        vectors are arguments without SSE enabled.
        (ix86_function_arg_boundary): Without SSE enabled, the use of what
        would be SSE register modes does no longer influence the alignment.

From-SVN: r84431
This commit is contained in:
Jan Beulich 2004-07-10 01:59:12 +00:00 committed by Richard Henderson
parent e4d3eef11d
commit 78fbfc4bd9
2 changed files with 20 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2004-07-09 Jan Beulich <jbeulich@novell.com>
* config/i386/i386.c (init_cumulative_args): Set mmx/sse registers
available for use only when TARGET_MMX/_SSE is set, and check for
variable argument function if any register count is non-zero.
(function_arg): Correctly suppress repeated warnings for passing SSE
vectors are arguments without SSE enabled.
(ix86_function_arg_boundary): Without SSE enabled, the use of what
would be SSE register modes does no longer influence the alignment.
2004-07-09 Richard Henderson <rth@redhat.com>
* builtins.c (std_gimplify_va_arg_expr): Deny ARGS_GROW_DOWNWARD.

17
gcc/config/i386/i386.c
View File

@ -1921,8 +1921,10 @@ init_cumulative_args (CUMULATIVE_ARGS *cum, /* Argument info to initialize */
cum->nregs = ix86_function_regparm (fntype, fndecl);
else
cum->nregs = ix86_regparm;
cum->sse_nregs = SSE_REGPARM_MAX;
cum->mmx_nregs = MMX_REGPARM_MAX;
if (TARGET_SSE)
cum->sse_nregs = SSE_REGPARM_MAX;
if (TARGET_MMX)
cum->mmx_nregs = MMX_REGPARM_MAX;
cum->warn_sse = true;
cum->warn_mmx = true;
cum->maybe_vaarg = false;
@ -1937,13 +1939,12 @@ init_cumulative_args (CUMULATIVE_ARGS *cum, /* Argument info to initialize */
}
}
/* Determine if this function has variable arguments. This is
indicated by the last argument being 'void_type_mode' if there
are no variable arguments. If there are variable arguments, then
we won't pass anything in registers */
we won't pass anything in registers in 32-bit mode. */
if (cum->nregs || !TARGET_MMX || !TARGET_SSE)
if (cum->nregs || cum->mmx_nregs || cum->sse_nregs)
{
for (param = (fntype) ? TYPE_ARG_TYPES (fntype) : 0;
param != 0; param = next_param)
@ -2692,7 +2693,7 @@ function_arg (CUMULATIVE_ARGS *cum, /* current arg information */
case V2DFmode:
if (!type || !AGGREGATE_TYPE_P (type))
{
if (!TARGET_SSE && !warnedmmx && cum->warn_sse)
if (!TARGET_SSE && !warnedsse && cum->warn_sse)
{
warnedsse = true;
warning ("SSE vector argument without SSE enabled "
@ -2839,7 +2840,9 @@ ix86_function_arg_boundary (enum machine_mode mode, tree type)
The handling here differs from field_alignment. ICC aligns MMX
arguments to 4 byte boundaries, while structure fields are aligned
to 8 byte boundaries. */
if (!type)
if (!TARGET_SSE)
align = PARM_BOUNDARY;
else if (!type)
{
if (!SSE_REG_MODE_P (mode))
align = PARM_BOUNDARY;