diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2006-02-16 00:21:07 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2006-02-16 00:21:07 +0000 |
| commit | 18a8452f3d2cc0bbfea427b10e2c7dccc86f2188 (patch) | |
| tree | 28d30f79b0226df664f0c7d514abf3dcf530c488 /lib/Target/X86/X86Subtarget.cpp | |
| parent | a48654ef23c35d9d07e5c0cb80726ec788dae93a (diff) | |
A bit more memset / memcpy optimization.
Turns them into calls to memset / memcpy if 1) buffer(s) are not DWORD aligned,
2) size is not known to be greater or equal to some minimum value (currently 128).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26224 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86Subtarget.cpp')
| -rw-r--r-- | lib/Target/X86/X86Subtarget.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp index d0c5c4d39a..b3fafbfea1 100644 --- a/lib/Target/X86/X86Subtarget.cpp +++ b/lib/Target/X86/X86Subtarget.cpp @@ -146,6 +146,8 @@ static const char *GetCurrentX86CPU() { X86Subtarget::X86Subtarget(const Module &M, const std::string &FS) { stackAlignment = 8; + // FIXME: this is a known good value for Yonah. Not sure about others. + MinRepStrSizeThreshold = 128; indirectExternAndWeakGlobals = false; X86SSELevel = NoMMXSSE; X863DNowLevel = NoThreeDNow; |