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Author SHA1 Message Date
NAKAMURA Takumi 4b04c11d00 clang/test/CodeGen/builtin-assume*.c: Fixup for -Asserts. 
llvm-svn: 217352
 2014-09-08 01:12:55 +00:00
Hal Finkel bcc06085a8 Add __builtin_assume and __builtin_assume_aligned using @llvm.assume. 
This makes use of the recently-added @llvm.assume intrinsic to implement a
__builtin_assume(bool) intrinsic (to provide additional information to the
optimizer). This hooks up __assume in MS-compatibility mode to mirror
__builtin_assume (the semantics have been intentionally kept compatible), and
implements GCC's __builtin_assume_aligned as assume((p - o) & mask == 0). LLVM
now contains special logic to deal with assumptions of this form.

llvm-svn: 217349
 2014-09-07 22:58:14 +00:00