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authorEvan Cheng <evan.cheng@apple.com>2008-04-10 08:03:14 +0000
committerEvan Cheng <evan.cheng@apple.com>2008-04-10 08:03:14 +0000
commit4670e526ba94f58488d7163a1784004cb35ee79d (patch)
tree9b04c0eef1a9934592a967ef6fe16e47786b0c6f /lib
parent00c8f3d149d4478311507cd293c999324fde5d0a (diff)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49469 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
-rw-r--r--lib/CodeGen/SimpleRegisterCoalescing.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/CodeGen/SimpleRegisterCoalescing.h b/lib/CodeGen/SimpleRegisterCoalescing.h
index 7823ba0..fa63159 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