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[ARM] PR target/78439: Update movdi constraints for Cortex-A8 tuning to handle LDRD/STRD

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PR target/78439
	* config/arm/vfp.md (*movdi_vfp_cortexa8): Use 'q' constraints for the
	register operand in alternatives 4,5,6.

	* gcc.c-torture/compile/pr78439.c: New test.

From-SVN: r242695
This commit is contained in:
Kyrylo Tkachov 2016-11-22 12:12:05 +00:00 committed by Kyrylo Tkachov
parent 4ac52f1614
commit c69fb8161a
4 changed files with 69 additions and 2 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2016-11-22 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
PR target/78439
* config/arm/vfp.md (*movdi_vfp_cortexa8): Use 'q' constraints for the
register operand in alternatives 4,5,6.
2016-11-22 Thomas Preud'homme <thomas.preudhomme@arm.com>
PR target/77904

4
gcc/config/arm/vfp.md
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@ -355,8 +355,8 @@
)
(define_insn "*movdi_vfp_cortexa8"
[(set (match_operand:DI 0 "nonimmediate_di_operand" "=r,r,r,r,r,r,m,w,!r,w,w, Uv")
(match_operand:DI 1 "di_operand" "r,rDa,Db,Dc,mi,mi,r,r,w,w,Uvi,w"))]
[(set (match_operand:DI 0 "nonimmediate_di_operand" "=r,r,r,r,q,q,m,w,!r,w,w, Uv")
(match_operand:DI 1 "di_operand" "r,rDa,Db,Dc,mi,mi,q,r,w,w,Uvi,w"))]
"TARGET_32BIT && TARGET_HARD_FLOAT && arm_tune == TARGET_CPU_cortexa8
&& ( register_operand (operands[0], DImode)
|| register_operand (operands[1], DImode))

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2016-11-22 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
PR target/78439
* gcc.c-torture/compile/pr78439.c: New test.
2016-11-22 Thomas Preud'homme <thomas.preudhomme@arm.com>
PR target/77904

56
gcc/testsuite/gcc.c-torture/compile/pr78439.c Normal file
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@ -0,0 +1,56 @@
/* PR target/78439. */
enum demangle_component_type
{
DEMANGLE_COMPONENT_THROW_SPEC
};
struct demangle_component
{
enum demangle_component_type type;
struct
{
struct
{
struct demangle_component *left;
struct demangle_component *right;
};
};
};
int a, b;
struct d_info
{
struct demangle_component *comps;
int next_comp;
int num_comps;
struct demangle_component *subs;
int num_subs;
int is_conversion;
};
void
fn1 (int p1, struct d_info *p2)
{
p2->num_comps = 2 * p1;
p2->next_comp = p2->num_subs = p1;
p2->is_conversion = 0;
}
int fn3 (int *);
void fn4 (struct d_info *, int);
void
fn2 ()
{
int c;
struct d_info d;
b = 0;
c = fn3 (&a);
fn1 (c, &d);
struct demangle_component e[d.num_comps];
struct demangle_component *f[d.num_subs];
d.comps = e;
d.subs = (struct demangle_component *) f;
fn4 (&d, 1);
}