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disable .set mips2 for mips release r6

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MIPS r6 changed the encoding for `ll' instruction,
if we `.set mips2', it will generate the old encoding for `ll'.

So here we disable it for r6.
This commit is contained in:
YunQiang Su
2017-12-31 14:14:11 +08:00
committed by GitHub
parent 279372a784
commit 4252ed31de
1 changed files with 6 additions and 0 deletions
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6
include/boost/smart_ptr/detail/sp_counted_base_gcc_mips.hpp
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@@ -38,7 +38,9 @@ inline void atomic_increment( int * pw )
(
"0:\n\t"
".set push\n\t"
#if !defined(__mips_isa_rev) || (__mips_isa_rev < 6)
".set mips2\n\t"
#endif
"ll %0, %1\n\t"
"addiu %0, 1\n\t"
"sc %0, %1\n\t"
@@ -59,7 +61,9 @@ inline int atomic_decrement( int * pw )
(
"0:\n\t"
".set push\n\t"
#if !defined(__mips_isa_rev) || (__mips_isa_rev < 6)
".set mips2\n\t"
#endif
"ll %1, %2\n\t"
"addiu %0, %1, -1\n\t"
"sc %0, %2\n\t"
@@ -85,7 +89,9 @@ inline int atomic_conditional_increment( int * pw )
(
"0:\n\t"
".set push\n\t"
#if !defined(__mips_isa_rev) || (__mips_isa_rev < 6)
".set mips2\n\t"
#endif
"ll %0, %2\n\t"
"beqz %0, 1f\n\t"
"addiu %1, %0, 1\n\t"