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author | Evan Cheng <evan.cheng@apple.com> | 2008-04-10 08:03:14 +0000 |
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committer | Evan Cheng <evan.cheng@apple.com> | 2008-04-10 08:03:14 +0000 |
commit | f0785153e51a60ede0a85bf98c1c1e6ada9054f6 (patch) | |
tree | 9b04c0eef1a9934592a967ef6fe16e47786b0c6f | |
parent | 2189c1744398958407f6802cd07177a292cc1416 (diff) |
Add comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49469 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r-- | lib/CodeGen/SimpleRegisterCoalescing.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/CodeGen/SimpleRegisterCoalescing.h b/lib/CodeGen/SimpleRegisterCoalescing.h index 7823ba0df4..fa63159d1c 100644 --- a/lib/CodeGen/SimpleRegisterCoalescing.h +++ b/lib/CodeGen/SimpleRegisterCoalescing.h @@ -223,6 +223,8 @@ namespace llvm { /// subregister. void UpdateRegDefsUses(unsigned SrcReg, unsigned DstReg, unsigned SubIdx); + /// RemoveDeadImpDef - Remove implicit_def instructions which are + /// "re-defining" registers due to insert_subreg coalescing. e.g. void RemoveDeadImpDef(unsigned Reg, LiveInterval &LI); /// RemoveUnnecessaryKills - Remove kill markers that are no longer accurate |