summaryrefslogtreecommitdiff
path: root/boost/atomic/detail/ops_gcc_x86_dcas.hpp
diff options
context:
space:
mode:
Diffstat (limited to 'boost/atomic/detail/ops_gcc_x86_dcas.hpp')
-rw-r--r--boost/atomic/detail/ops_gcc_x86_dcas.hpp40
1 files changed, 32 insertions, 8 deletions
diff --git a/boost/atomic/detail/ops_gcc_x86_dcas.hpp b/boost/atomic/detail/ops_gcc_x86_dcas.hpp
index 5e00535..a6109f9 100644
--- a/boost/atomic/detail/ops_gcc_x86_dcas.hpp
+++ b/boost/atomic/detail/ops_gcc_x86_dcas.hpp
@@ -80,9 +80,14 @@ struct gcc_dcas_x86
"1: lock; cmpxchg8b 0(%[dest])\n\t"
"jne 1b\n\t"
"movl %[scratch], %%ebx"
+#if !defined(BOOST_ATOMIC_DETAIL_NO_ASM_CONSTRAINT_ALTERNATIVES)
: [scratch] "=m,m" (scratch)
: [value_lo] "a,a" ((uint32_t)v), "c,c" ((uint32_t)(v >> 32)), [dest] "D,S" (&storage)
- : "cc", "edx", "memory"
+#else
+ : [scratch] "=m" (scratch)
+ : [value_lo] "a" ((uint32_t)v), "c" ((uint32_t)(v >> 32)), [dest] "D" (&storage)
+#endif
+ : BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC_COMMA "edx", "memory"
);
#else
__asm__ __volatile__
@@ -93,8 +98,12 @@ struct gcc_dcas_x86
"1: lock; cmpxchg8b 0(%[dest])\n\t"
"jne 1b\n\t"
:
+#if !defined(BOOST_ATOMIC_DETAIL_NO_ASM_CONSTRAINT_ALTERNATIVES)
: [value_lo] "b,b" ((uint32_t)v), "c,c" ((uint32_t)(v >> 32)), [dest] "D,S" (&storage)
- : "cc", "eax", "edx", "memory"
+#else
+ : [value_lo] "b" ((uint32_t)v), "c" ((uint32_t)(v >> 32)), [dest] "D" (&storage)
+#endif
+ : BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC_COMMA "eax", "edx", "memory"
);
#endif
}
@@ -146,7 +155,7 @@ struct gcc_dcas_x86
"lock; cmpxchg8b %[storage]"
: "=&A" (value)
: [storage] "m" (storage)
- : "cc", "memory"
+ : BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC_COMMA "memory"
);
#endif
}
@@ -183,9 +192,14 @@ struct gcc_dcas_x86
"lock; cmpxchg8b %[dest]\n\t"
"movl %[scratch], %%ebx\n\t"
"sete %[success]"
+#if !defined(BOOST_ATOMIC_DETAIL_NO_ASM_CONSTRAINT_ALTERNATIVES)
: "+A,A,A,A,A,A" (expected), [dest] "+m,m,m,m,m,m" (storage), [scratch] "=m,m,m,m,m,m" (scratch), [success] "=q,m,q,m,q,m" (success)
: [desired_lo] "S,S,D,D,m,m" ((uint32_t)desired), "c,c,c,c,c,c" ((uint32_t)(desired >> 32))
- : "cc", "memory"
+#else
+ : "+A" (expected), [dest] "+m" (storage), [scratch] "=m" (scratch), [success] "=q" (success)
+ : [desired_lo] "S" ((uint32_t)desired), "c" ((uint32_t)(desired >> 32))
+#endif
+ : BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC_COMMA "memory"
);
return success;
#else
@@ -194,9 +208,14 @@ struct gcc_dcas_x86
(
"lock; cmpxchg8b %[dest]\n\t"
"sete %[success]"
+#if !defined(BOOST_ATOMIC_DETAIL_NO_ASM_CONSTRAINT_ALTERNATIVES)
: "+A,A" (expected), [dest] "+m,m" (storage), [success] "=q,m" (success)
: "b,b" ((uint32_t)desired), "c,c" ((uint32_t)(desired >> 32))
- : "cc", "memory"
+#else
+ : "+A" (expected), [dest] "+m" (storage), [success] "=q" (success)
+ : "b" ((uint32_t)desired), "c" ((uint32_t)(desired >> 32))
+#endif
+ : BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC_COMMA "memory"
);
return success;
#endif
@@ -235,7 +254,7 @@ struct gcc_dcas_x86_64
"jne 1b"
:
: "b" (p_value[0]), "c" (p_value[1]), [dest] "r" (&storage)
- : "cc", "rax", "rdx", "memory"
+ : BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC_COMMA "rax", "rdx", "memory"
);
}
@@ -257,7 +276,7 @@ struct gcc_dcas_x86_64
"lock; cmpxchg16b %[storage]"
: "=&A" (value)
: [storage] "m" (storage)
- : "cc", "memory"
+ : BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC_COMMA "memory"
);
return value;
@@ -279,9 +298,14 @@ struct gcc_dcas_x86_64
(
"lock; cmpxchg16b %[dest]\n\t"
"sete %[success]"
+#if !defined(BOOST_ATOMIC_DETAIL_NO_ASM_CONSTRAINT_ALTERNATIVES)
: "+A,A" (expected), [dest] "+m,m" (storage), [success] "=q,m" (success)
: "b,b" (p_desired[0]), "c,c" (p_desired[1])
- : "cc", "memory"
+#else
+ : "+A" (expected), [dest] "+m" (storage), [success] "=q" (success)
+ : "b" (p_desired[0]), "c" (p_desired[1])
+#endif
+ : BOOST_ATOMIC_DETAIL_ASM_CLOBBER_CC_COMMA "memory"
);
return success;
#endif