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Add pass_va_arg_by_reference 

This patch splits out a common idiom from the va_arg gimplification
routines, so that there's only one place to update later.

2019-08-20  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* calls.h (pass_va_arg_by_reference): Declare.
	* calls.c (pass_va_arg_by_reference): New function.
	* config/aarch64/aarch64.c (aarch64_gimplify_va_arg_expr): Use it.
	* config/alpha/alpha.c (alpha_gimplify_va_arg): Likewise.
	* config/gcn/gcn.c (gcn_gimplify_va_arg_expr): Likewise.
	* config/i386/i386.c (ix86_gimplify_va_arg): Likewise.
	* config/ia64/ia64.c (ia64_gimplify_va_arg): Likewise.
	* config/mips/mips.c (mips_std_gimplify_va_arg_expr): Likewise.
	(mips_gimplify_va_arg_expr): Likewise.
	* config/msp430/msp430.c (msp430_gimplify_va_arg_expr): Likewise.
	* config/pa/pa.c (hppa_gimplify_va_arg_expr): Likewise.
	* config/rs6000/rs6000-call.c (rs6000_gimplify_va_arg): Likewise.
	* config/s390/s390.c (s390_gimplify_va_arg): Likewise.
	* config/sparc/sparc.c (sparc_gimplify_va_arg): Likewise.
	* config/spu/spu.c (spu_gimplify_va_arg_expr): Likewise.
	* config/tilegx/tilegx.c (tilegx_gimplify_va_arg_expr): Likewise.
	* config/tilepro/tilepro.c (tilepro_gimplify_va_arg_expr): Likewise.
	* config/visium/visium.c (visium_gimplify_va_arg): Likewise.
	* config/xtensa/xtensa.c (xtensa_gimplify_va_arg_expr): Likewise.
	* targhooks.c (std_gimplify_va_arg_expr): Likewise.

From-SVN: r274695
This commit is contained in:
Richard Sandiford 2019-08-20 08:50:59 +00:00 committed by Richard Sandiford
parent f386ca4138
commit fde65a89fa
20 changed files with 51 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
gcc/ChangeLog
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@ -1,3 +1,26 @@
2019-08-20 Richard Sandiford <richard.sandiford@arm.com>
* calls.h (pass_va_arg_by_reference): Declare.
* calls.c (pass_va_arg_by_reference): New function.
* config/aarch64/aarch64.c (aarch64_gimplify_va_arg_expr): Use it.
* config/alpha/alpha.c (alpha_gimplify_va_arg): Likewise.
* config/gcn/gcn.c (gcn_gimplify_va_arg_expr): Likewise.
* config/i386/i386.c (ix86_gimplify_va_arg): Likewise.
* config/ia64/ia64.c (ia64_gimplify_va_arg): Likewise.
* config/mips/mips.c (mips_std_gimplify_va_arg_expr): Likewise.
(mips_gimplify_va_arg_expr): Likewise.
* config/msp430/msp430.c (msp430_gimplify_va_arg_expr): Likewise.
* config/pa/pa.c (hppa_gimplify_va_arg_expr): Likewise.
* config/rs6000/rs6000-call.c (rs6000_gimplify_va_arg): Likewise.
* config/s390/s390.c (s390_gimplify_va_arg): Likewise.
* config/sparc/sparc.c (sparc_gimplify_va_arg): Likewise.
* config/spu/spu.c (spu_gimplify_va_arg_expr): Likewise.
* config/tilegx/tilegx.c (tilegx_gimplify_va_arg_expr): Likewise.
* config/tilepro/tilepro.c (tilepro_gimplify_va_arg_expr): Likewise.
* config/visium/visium.c (visium_gimplify_va_arg): Likewise.
* config/xtensa/xtensa.c (xtensa_gimplify_va_arg_expr): Likewise.
* targhooks.c (std_gimplify_va_arg_expr): Likewise.
2019-08-20 Richard Biener <rguenther@suse.de>
PR target/91498

9
gcc/calls.c
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@ -927,6 +927,15 @@ pass_by_reference (CUMULATIVE_ARGS *ca, machine_mode mode,
type, named_arg);
}
/* Return true if TYPE should be passed by reference when passed to
the "..." arguments of a function. */
bool
pass_va_arg_by_reference (tree type)
{
return pass_by_reference (NULL, TYPE_MODE (type), type, false);
}
/* Return true if TYPE, which is passed by reference, should be callee
copied instead of caller copied. */

1
gcc/calls.h
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@ -35,6 +35,7 @@ extern void fixup_tail_calls (void);
extern bool pass_by_reference (CUMULATIVE_ARGS *, machine_mode,
tree, bool);
extern bool pass_va_arg_by_reference (tree);
extern bool reference_callee_copied (CUMULATIVE_ARGS *, machine_mode,
tree, bool);
extern void maybe_warn_alloc_args_overflow (tree, tree, tree[2], int[2]);

2
gcc/config/aarch64/aarch64.c
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@ -14271,7 +14271,7 @@ aarch64_gimplify_va_arg_expr (tree valist, tree type, gimple_seq *pre_p,
HOST_WIDE_INT size, rsize, adjust, align;
tree t, u, cond1, cond2;
indirect_p = pass_by_reference (NULL, TYPE_MODE (type), type, false);
indirect_p = pass_va_arg_by_reference (type);
if (indirect_p)
type = build_pointer_type (type);

2
gcc/config/alpha/alpha.c
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@ -6330,7 +6330,7 @@ alpha_gimplify_va_arg (tree valist, tree type, gimple_seq *pre_p,
t = fold_convert (build_nonstandard_integer_type (64, 0), offset_field);
offset = get_initialized_tmp_var (t, pre_p, NULL);
indirect = pass_by_reference (NULL, TYPE_MODE (type), type, false);
indirect = pass_va_arg_by_reference (type);
if (indirect)
{

2
gcc/config/gcn/gcn.c
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@ -2493,7 +2493,7 @@ gcn_gimplify_va_arg_expr (tree valist, tree type,
tree t, u;
bool indirect;
indirect = pass_by_reference (NULL, TYPE_MODE (type), type, 0);
indirect = pass_va_arg_by_reference (type);
if (indirect)
{
type = ptr;

2
gcc/config/i386/i386.c
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@ -4307,7 +4307,7 @@ ix86_gimplify_va_arg (tree valist, tree type, gimple_seq *pre_p,
ovf = build3 (COMPONENT_REF, TREE_TYPE (f_ovf), valist, f_ovf, NULL_TREE);
sav = build3 (COMPONENT_REF, TREE_TYPE (f_sav), valist, f_sav, NULL_TREE);
indirect_p = pass_by_reference (NULL, TYPE_MODE (type), type, false);
indirect_p = pass_va_arg_by_reference (type);
if (indirect_p)
type = build_pointer_type (type);
size = arg_int_size_in_bytes (type);

2
gcc/config/ia64/ia64.c
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@ -5147,7 +5147,7 @@ ia64_gimplify_va_arg (tree valist, tree type, gimple_seq *pre_p,
gimple_seq *post_p)
{
/* Variable sized types are passed by reference. */
if (pass_by_reference (NULL, TYPE_MODE (type), type, false))
if (pass_va_arg_by_reference (type))
{
tree ptrtype = build_pointer_type (type);
tree addr = std_gimplify_va_arg_expr (valist, ptrtype, pre_p, post_p);

4
gcc/config/mips/mips.c
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@ -6780,7 +6780,7 @@ mips_std_gimplify_va_arg_expr (tree valist, tree type, gimple_seq *pre_p,
unsigned HOST_WIDE_INT align, boundary;
bool indirect;
indirect = pass_by_reference (NULL, TYPE_MODE (type), type, false);
indirect = pass_va_arg_by_reference (type);
if (indirect)
type = build_pointer_type (type);
@ -6867,7 +6867,7 @@ mips_gimplify_va_arg_expr (tree valist, tree type, gimple_seq *pre_p,
tree addr;
bool indirect_p;
indirect_p = pass_by_reference (NULL, TYPE_MODE (type), type, 0);
indirect_p = pass_va_arg_by_reference (type);
if (indirect_p)
type = build_pointer_type (type);

2
gcc/config/msp430/msp430.c
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@ -856,7 +856,7 @@ msp430_gimplify_va_arg_expr (tree valist, tree type, gimple_seq *pre_p,
unsigned HOST_WIDE_INT align, boundary;
bool indirect;
indirect = pass_by_reference (NULL, TYPE_MODE (type), type, false);
indirect = pass_va_arg_by_reference (type);
if (indirect)
type = build_pointer_type (type);

2
gcc/config/pa/pa.c
View File

@ -6377,7 +6377,7 @@ hppa_gimplify_va_arg_expr (tree valist, tree type, gimple_seq *pre_p,
unsigned int size, ofs;
bool indirect;
indirect = pass_by_reference (NULL, TYPE_MODE (type), type, 0);
indirect = pass_va_arg_by_reference (type);
if (indirect)
{
type = ptr;

2
gcc/config/rs6000/rs6000-call.c
View File

@ -2690,7 +2690,7 @@ rs6000_gimplify_va_arg (tree valist, tree type, gimple_seq *pre_p,
int regalign = 0;
gimple *stmt;
if (pass_by_reference (NULL, TYPE_MODE (type), type, false))
if (pass_va_arg_by_reference (type))
{
t = rs6000_gimplify_va_arg (valist, ptrtype, pre_p, post_p);
return build_va_arg_indirect_ref (t);

2
gcc/config/s390/s390.c
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@ -12476,7 +12476,7 @@ s390_gimplify_va_arg (tree valist, tree type, gimple_seq *pre_p,
s390_check_type_for_vector_abi (type, true, false);
if (pass_by_reference (NULL, TYPE_MODE (type), type, false))
if (pass_va_arg_by_reference (type))
{
if (TARGET_DEBUG_ARG)
{

2
gcc/config/sparc/sparc.c
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@ -7935,7 +7935,7 @@ sparc_gimplify_va_arg (tree valist, tree type, gimple_seq *pre_p,
bool indirect;
tree ptrtype = build_pointer_type (type);
if (pass_by_reference (NULL, TYPE_MODE (type), type, false))
if (pass_va_arg_by_reference (type))
{
indirect = true;
size = rsize = UNITS_PER_WORD;

3
gcc/config/spu/spu.c
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@ -4053,8 +4053,7 @@ spu_gimplify_va_arg_expr (tree valist, tree type, gimple_seq * pre_p,
/* if an object is dynamically sized, a pointer to it is passed
instead of the object itself. */
pass_by_reference_p = pass_by_reference (NULL, TYPE_MODE (type), type,
false);
pass_by_reference_p = pass_va_arg_by_reference (type);
if (pass_by_reference_p)
type = build_pointer_type (type);
size = int_size_in_bytes (type);

3
gcc/config/tilegx/tilegx.c
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@ -471,8 +471,7 @@ tilegx_gimplify_va_arg_expr (tree valist, tree type, gimple_seq *pre_p,
/* If an object is dynamically sized, a pointer to it is passed
instead of the object itself. */
pass_by_reference_p = pass_by_reference (NULL, TYPE_MODE (type), type,
false);
pass_by_reference_p = pass_va_arg_by_reference (type);
if (pass_by_reference_p)
type = build_pointer_type (type);

3
gcc/config/tilepro/tilepro.c
View File

@ -419,8 +419,7 @@ tilepro_gimplify_va_arg_expr (tree valist, tree type, gimple_seq * pre_p,
/* if an object is dynamically sized, a pointer to it is passed
instead of the object itself. */
pass_by_reference_p = pass_by_reference (NULL, TYPE_MODE (type), type,
false);
pass_by_reference_p = pass_va_arg_by_reference (type);
if (pass_by_reference_p)
type = build_pointer_type (type);

3
gcc/config/visium/visium.c
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@ -1637,8 +1637,7 @@ visium_gimplify_va_arg (tree valist, tree type, gimple_seq *pre_p,
tree f_ovfl, f_gbase, f_fbase, f_gbytes, f_fbytes;
tree ovfl, base, bytes;
HOST_WIDE_INT size, rsize;
const bool by_reference_p
= pass_by_reference (NULL, TYPE_MODE (type), type, false);
const bool by_reference_p = pass_va_arg_by_reference (type);
const bool float_reg_arg_p
= (TARGET_FPU && !by_reference_p
&& ((GET_MODE_CLASS (TYPE_MODE (type)) == MODE_FLOAT

2
gcc/config/xtensa/xtensa.c
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@ -3252,7 +3252,7 @@ xtensa_gimplify_va_arg_expr (tree valist, tree type, gimple_seq *pre_p,
tree lab_false, lab_over, lab_false2;
bool indirect;
indirect = pass_by_reference (NULL, TYPE_MODE (type), type, false);
indirect = pass_va_arg_by_reference (type);
if (indirect)
type = build_pointer_type (type);

2
gcc/targhooks.c
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@ -2177,7 +2177,7 @@ std_gimplify_va_arg_expr (tree valist, tree type, gimple_seq *pre_p,
if (ARGS_GROW_DOWNWARD)
gcc_unreachable ();
indirect = pass_by_reference (NULL, TYPE_MODE (type), type, false);
indirect = pass_va_arg_by_reference (type);
if (indirect)
type = build_pointer_type (type);