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TargetLibraryInfo: Disable memcpy and memset on R600

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There are no implementations of these for R600.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205455 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tom Stellard
2014-04-02 19:53:29 +00:00
parent bc07242d9b
commit adb852ddf3
2 changed files with 64 additions and 1 deletions
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11
lib/Target/TargetLibraryInfo.cpp
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@ -378,7 +378,16 @@ static void initialize(TargetLibraryInfo &TLI, const Triple &T,
llvm_unreachable("TargetLibraryInfo function names must be sorted");
}
#endif // !NDEBUG
// There are no library implementations of mempcy and memset for r600 and
// these can be difficult to lower in the backend.
if (T.getArch() == Triple::r600) {
TLI.setUnavailable(LibFunc::memcpy);
TLI.setUnavailable(LibFunc::memset);
TLI.setUnavailable(LibFunc::memset_pattern16);
return;
}
// memset_pattern16 is only available on iOS 3.0 and Mac OS X 10.5 and later.
if (T.isMacOSX()) {
if (T.isMacOSXVersionLT(10, 5))