[compiler-rt] r285265 - Atomics library: provide operations for __int128 when it is available.
Richard Smith via llvm-commits
llvm-commits at lists.llvm.org
Wed Oct 26 18:46:25 PDT 2016
Author: rsmith
Date: Wed Oct 26 20:46:24 2016
New Revision: 285265
URL: http://llvm.org/viewvc/llvm-project?rev=285265&view=rev
Log:
Atomics library: provide operations for __int128 when it is available.
Modified:
compiler-rt/trunk/lib/builtins/atomic.c
Modified: compiler-rt/trunk/lib/builtins/atomic.c
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/builtins/atomic.c?rev=285265&r1=285264&r2=285265&view=diff
==============================================================================
--- compiler-rt/trunk/lib/builtins/atomic.c (original)
+++ compiler-rt/trunk/lib/builtins/atomic.c Wed Oct 26 20:46:24 2016
@@ -229,13 +229,20 @@ void __atomic_exchange_c(int size, void
// Where the size is known at compile time, the compiler may emit calls to
// specialised versions of the above functions.
////////////////////////////////////////////////////////////////////////////////
+#ifdef __SIZEOF_INT128__
#define OPTIMISED_CASES\
OPTIMISED_CASE(1, IS_LOCK_FREE_1, uint8_t)\
OPTIMISED_CASE(2, IS_LOCK_FREE_2, uint16_t)\
OPTIMISED_CASE(4, IS_LOCK_FREE_4, uint32_t)\
OPTIMISED_CASE(8, IS_LOCK_FREE_8, uint64_t)\
- /* FIXME: __uint128_t isn't available on 32 bit platforms.
- OPTIMISED_CASE(16, IS_LOCK_FREE_16, __uint128_t)*/\
+ OPTIMISED_CASE(16, IS_LOCK_FREE_16, __uint128_t)
+#else
+#define OPTIMISED_CASES\
+ OPTIMISED_CASE(1, IS_LOCK_FREE_1, uint8_t)\
+ OPTIMISED_CASE(2, IS_LOCK_FREE_2, uint16_t)\
+ OPTIMISED_CASE(4, IS_LOCK_FREE_4, uint32_t)\
+ OPTIMISED_CASE(8, IS_LOCK_FREE_8, uint64_t)
+#endif
#define OPTIMISED_CASE(n, lockfree, type)\
type __atomic_load_##n(type *src, int model) {\
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