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nvptx.h (struct machine_function): Add comment.

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* config/nvptx/nvptx.h (struct machine_function): Add comment.
	* config/nvptx/nvptx.c (nvptx_declare_function_name): Functions
	may return pointer as well as in memory.
	(nvptx_output_return): Likewise.

From-SVN: r228618
This commit is contained in:
Nathan Sidwell 2015-10-08 17:31:36 +00:00 • committed by Nathan Sidwell
parent 4835c97845
commit 25662751d1
3 changed files with 22 additions and 20 deletions
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7
gcc/ChangeLog
View file

@ -1,3 +1,10 @@
2015-10-08 Nathan Sidwell <nathan@acm.org>
* config/nvptx/nvptx.h (struct machine_function): Add comment.
* config/nvptx/nvptx.c (nvptx_declare_function_name): Functions
may return pointer as well as in memory.
(nvptx_output_return): Likewise.
2015-10-08 Richard Sandiford <richard.sandiford@arm.com>
* builtins.c (fold_builtin_sqrt, fold_builtin_cbrt): Delete.

33
gcc/config/nvptx/nvptx.c
View file

@ -531,13 +531,8 @@ nvptx_declare_function_name (FILE *file, const char *name, const_tree decl)
nvptx_write_function_decl (s, name, decl);
fprintf (file, "%s", s.str().c_str());
bool return_in_mem = false;
if (TYPE_MODE (result_type) != VOIDmode)
{
machine_mode mode = TYPE_MODE (result_type);
if (!RETURN_IN_REG_P (mode))
return_in_mem = true;
}
bool return_in_mem = (TYPE_MODE (result_type) != VOIDmode
&& !RETURN_IN_REG_P (TYPE_MODE (result_type)));
fprintf (file, "\n{\n");
@ -547,9 +542,13 @@ nvptx_declare_function_name (FILE *file, const char *name, const_tree decl)
false, return_in_mem);
if (return_in_mem)
fprintf (file, "\t.reg.u%d %%ar1;\n", GET_MODE_BITSIZE (Pmode));
else if (TYPE_MODE (result_type) != VOIDmode)
/* C++11 ABI causes us to return a reference to the passed in
pointer for return_in_mem. */
if (cfun->machine->ret_reg_mode != VOIDmode)
{
machine_mode mode = arg_promotion (TYPE_MODE (result_type));
machine_mode mode = arg_promotion
((machine_mode)cfun->machine->ret_reg_mode);
fprintf (file, "\t.reg%s %%retval;\n",
nvptx_ptx_type_from_mode (mode, false));
}
@ -635,17 +634,13 @@ nvptx_declare_function_name (FILE *file, const char *name, const_tree decl)
const char *
nvptx_output_return (void)
{
tree fntype = TREE_TYPE (current_function_decl);
tree result_type = TREE_TYPE (fntype);
if (TYPE_MODE (result_type) != VOIDmode)
machine_mode mode = (machine_mode)cfun->machine->ret_reg_mode;
if (mode != VOIDmode)
{
machine_mode mode = TYPE_MODE (result_type);
if (RETURN_IN_REG_P (mode))
{
mode = arg_promotion (mode);
fprintf (asm_out_file, "\tst.param%s\t[%%out_retval], %%retval;\n",
nvptx_ptx_type_from_mode (mode, false));
}
mode = arg_promotion (mode);
fprintf (asm_out_file, "\tst.param%s\t[%%out_retval], %%retval;\n",
nvptx_ptx_type_from_mode (mode, false));
}
return "ret;";

2
gcc/config/nvptx/nvptx.h
View file

@ -228,7 +228,7 @@ struct GTY(()) machine_function
bool has_call_with_varargs;
bool has_call_with_sc;
HOST_WIDE_INT outgoing_stdarg_size;
int ret_reg_mode;
int ret_reg_mode; /* machine_mode not defined yet. */
int punning_buffer_size;
};
#endif