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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 | 9e83467baa7f6c2111de133852ac65f8c2237359 (patch) | |
| tree | 6c426946ca1a5aae66269f5c036e73b81582d3ee /lib | |
| parent | 4b0345be3071a5612023588eef689b93f3e94fa4 (diff) | |
| download | external_llvm-9e83467baa7f6c2111de133852ac65f8c2237359.zip external_llvm-9e83467baa7f6c2111de133852ac65f8c2237359.tar.gz external_llvm-9e83467baa7f6c2111de133852ac65f8c2237359.tar.bz2 | |
Reword this comment to reference a more fundamental issue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93154 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86FastISel.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp index 10fba24..7e02d59 100644 --- a/lib/Target/X86/X86FastISel.cpp +++ b/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; |