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add attributes for readnone/readonly functions.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88862 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-11-15 19:54:31 +00:00
parent 9806f833a6
commit 6f0c67d4ff
1 changed files with 12 additions and 0 deletions
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12
include/llvm/Support/Compiler.h
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@ -29,6 +29,18 @@
#define ATTRIBUTE_USED
#endif
#ifdef __GNUC__ // aka 'ATTRIBUTE_CONST' but following LLVM Conventions.
#define ATTRIBUTE_READNONE __attribute__((__const__))
#else
#define ATTRIBUTE_READNONE
#endif
#ifdef __GNUC__ // aka 'ATTRIBUTE_PURE' but following LLVM Conventions.
#define ATTRIBUTE_READONLY __attribute__((__pure__))
#else
#define ATTRIBUTE_READONLY
#endif
#if (__GNUC__ >= 4)
#define BUILTIN_EXPECT(EXPR, VALUE) __builtin_expect((EXPR), (VALUE))
#else