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| author | Dan Gohman <gohman@apple.com> | 2010-01-11 17:14:46 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-01-11 17:14:46 +0000 |
| commit | 40ea3e5ce2a5216498345fd9289bb5356037cf28 (patch) | |
| tree | a2b08272c7b21fc1cbc7b04886b5f8b0b0a6dac7 /llvm/lib/Target | |
| parent | 40775003e64d52af725880f2afa0b615d0d9d4aa (diff) | |
| download | bcm5719-llvm-40ea3e5ce2a5216498345fd9289bb5356037cf28.tar.gz bcm5719-llvm-40ea3e5ce2a5216498345fd9289bb5356037cf28.zip | |
Reword this comment to reference a more fundamental issue.
llvm-svn: 93154
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/X86/X86FastISel.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86FastISel.cpp b/llvm/lib/Target/X86/X86FastISel.cpp index 10fba2461ed..7e02d59c1bc 100644 --- a/llvm/lib/Target/X86/X86FastISel.cpp +++ b/llvm/lib/Target/X86/X86FastISel.cpp @@ -1230,8 +1230,8 @@ bool X86FastISel::X86SelectCall(Instruction *I) { CC != CallingConv::X86_FastCall) return false; - // On X86, -tailcallopt changes the fastcc ABI. FastISel doesn't - // handle this for now. + // fastcc with -tailcallopt is intended to provide a guaranteed + // tail call optimization. Fastisel doesn't know how to do that. if (CC == CallingConv::Fast && PerformTailCallOpt) return false; |
