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| author | John David Anglin <danglin@gcc.gnu.org> | 2018-09-20 01:04:34 +0000 |
|---|---|---|
| committer | John David Anglin <danglin@gcc.gnu.org> | 2018-09-20 01:04:34 +0000 |
| commit | bad4408cadddb199556e7da9fb4b267a4eb42805 (patch) | |
| tree | 7536be4425b98e43853dc88d25d2136a262e0e65 /gcc | |
| parent | fa8332f13f2e0c97ecaa7e6f86a7e866ae2e73fc (diff) | |
| download | gcc-bad4408cadddb199556e7da9fb4b267a4eb42805.zip gcc-bad4408cadddb199556e7da9fb4b267a4eb42805.tar.gz gcc-bad4408cadddb199556e7da9fb4b267a4eb42805.tar.bz2 | |
pa.md (atomic_storeqi): Restore deleted expander.
* config/pa/pa.md (atomic_storeqi): Restore deleted expander.
(atomic_storehi): Likewise.
(atomic_storesi): Likewise.
(atomic_loaddi): Restore compare and swap exchange loop code.
From-SVN: r264433
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/pa/pa.md | 62 |
2 files changed, 68 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index cfd8749..30e784e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2018-09-19 John David Anglin <danglin@gcc.gnu.org> + + * config/pa/pa.md (atomic_storeqi): Restore deleted expander. + (atomic_storehi): Likewise. + (atomic_storesi): Likewise. + (atomic_loaddi): Restore compare and swap exchange loop code. + 2018-09-19 Segher Boessenkool <segher@kernel.crashing.org> PR rtl-optimization/86902 diff --git a/gcc/config/pa/pa.md b/gcc/config/pa/pa.md index 0094c58..7761150 100644 --- a/gcc/config/pa/pa.md +++ b/gcc/config/pa/pa.md @@ -9958,7 +9958,59 @@ add,l %2,%3,%3\;bv,n %%r0(%3)" ;; These patterns are at the bottom so the non atomic versions are preferred. -;; Implement atomic DImode load using 64-bit floating point load. +(define_expand "atomic_storeqi" + [(match_operand:QI 0 "memory_operand") ;; memory + (match_operand:QI 1 "register_operand") ;; val out + (match_operand:SI 2 "const_int_operand")] ;; model + "" +{ + if (TARGET_SYNC_LIBCALL) + { + rtx mem = operands[0]; + rtx val = operands[1]; + if (pa_maybe_emit_compare_and_swap_exchange_loop (NULL_RTX, mem, val)) + DONE; + } + FAIL; +}) + +;; Implement atomic HImode stores using exchange. + +(define_expand "atomic_storehi" + [(match_operand:HI 0 "memory_operand") ;; memory + (match_operand:HI 1 "register_operand") ;; val out + (match_operand:SI 2 "const_int_operand")] ;; model + "" +{ + if (TARGET_SYNC_LIBCALL) + { + rtx mem = operands[0]; + rtx val = operands[1]; + if (pa_maybe_emit_compare_and_swap_exchange_loop (NULL_RTX, mem, val)) + DONE; + } + FAIL; +}) + +;; Implement atomic SImode store using exchange. + +(define_expand "atomic_storesi" + [(match_operand:SI 0 "memory_operand") ;; memory + (match_operand:SI 1 "register_operand") ;; val out + (match_operand:SI 2 "const_int_operand")] ;; model + "" +{ + if (TARGET_SYNC_LIBCALL) + { + rtx mem = operands[0]; + rtx val = operands[1]; + if (pa_maybe_emit_compare_and_swap_exchange_loop (NULL_RTX, mem, val)) + DONE; + } + FAIL; +}) + +;; Implement atomic DImode load. (define_expand "atomic_loaddi" [(match_operand:DI 0 "register_operand") ;; val out @@ -9999,6 +10051,14 @@ add,l %2,%3,%3\;bv,n %%r0(%3)" { enum memmodel model; + if (TARGET_SYNC_LIBCALL) + { + rtx mem = operands[0]; + rtx val = operands[1]; + if (pa_maybe_emit_compare_and_swap_exchange_loop (NULL_RTX, mem, val)) + DONE; + } + if (TARGET_64BIT || TARGET_DISABLE_FPREGS || TARGET_SOFT_FLOAT) FAIL; |