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aarch64: Add support for widening LDAPR instructions

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gcc/ChangeLog:

	* config/aarch64/atomics.md
	(*aarch64_atomic_load<ALLX:mode>_rcpc_zext): New pattern.
	(*aarch64_atomic_load<ALLX:mode>_rcpc_sext): New pattern.

gcc/testsuite/ChangeLog:
	* gcc.target/aarch64/ldapr-ext.c: New test.
This commit is contained in:
Andre Vieira 2022-11-15 09:50:46 +00:00
parent 0431e8ae5b
commit 28f636a0b0
2 changed files with 116 additions and 0 deletions
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22
gcc/config/aarch64/atomics.md
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@ -704,6 +704,28 @@
}
)
(define_insn "*aarch64_atomic_load<ALLX:mode>_rcpc_zext"
[(set (match_operand:GPI 0 "register_operand" "=r")
(zero_extend:GPI
(unspec_volatile:ALLX
[(match_operand:ALLX 1 "aarch64_sync_memory_operand" "Q")
(match_operand:SI 2 "const_int_operand")] ;; model
UNSPECV_LDAP)))]
"TARGET_RCPC"
"ldapr<ALLX:atomic_sfx>\t%<GPI:w>0, %1"
)
(define_insn "*aarch64_atomic_load<ALLX:mode>_rcpc_sext"
[(set (match_operand:GPI 0 "register_operand" "=r")
(sign_extend:GPI
(unspec_volatile:ALLX
[(match_operand:ALLX 1 "aarch64_sync_memory_operand" "Q")
(match_operand:SI 2 "const_int_operand")] ;; model
UNSPECV_LDAP)))]
"TARGET_RCPC"
"ldaprs<ALLX:atomic_sfx>\t%<GPI:w>0, %1"
)
(define_insn "atomic_store<mode>"
[(set (match_operand:ALLI 0 "aarch64_rcpc_memory_operand" "=Q,Ust")
(unspec_volatile:ALLI

94
gcc/testsuite/gcc.target/aarch64/ldapr-ext.c Normal file
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@ -0,0 +1,94 @@
/* { dg-do compile } */
/* { dg-options "-O2 -std=c99" } */
/* { dg-final { check-function-bodies "**" "" "" } } */
#include <stdatomic.h>
#pragma GCC target "+rcpc"
atomic_ullong u64;
atomic_llong s64;
atomic_uint u32;
atomic_int s32;
atomic_ushort u16;
atomic_short s16;
atomic_uchar u8;
atomic_schar s8;
#define TEST(name, ldsize, rettype) \
rettype \
test_##name (void) \
{ \
return atomic_load_explicit (&ldsize, memory_order_acquire); \
}
/*
**test_u8_u64:
**...
** ldaprb x0, \[x[0-9]+\]
** ret
*/
TEST(u8_u64, u8, unsigned long long)
/*
**test_s8_s64:
**...
** ldaprsb x0, \[x[0-9]+\]
** ret
*/
TEST(s8_s64, s8, long long)
/*
**test_u16_u64:
**...
** ldaprh x0, \[x[0-9]+\]
** ret
*/
TEST(u16_u64, u16, unsigned long long)
/*
**test_s16_s64:
**...
** ldaprsh x0, \[x[0-9]+\]
** ret
*/
TEST(s16_s64, s16, long long)
/*
**test_u8_u32:
**...
** ldaprb w0, \[x[0-9]+\]
** ret
*/
TEST(u8_u32, u8, unsigned)
/*
**test_s8_s32:
**...
** ldaprsb w0, \[x[0-9]+\]
** ret
*/
TEST(s8_s32, s8, int)
/*
**test_u16_u32:
**...
** ldaprh w0, \[x[0-9]+\]
** ret
*/
TEST(u16_u32, u16, unsigned)
/*
**test_s16_s32:
**...
** ldaprsh w0, \[x[0-9]+\]
** ret
*/
TEST(s16_s32, s16, int)