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authorEvan Cheng <evan.cheng@apple.com>2007-07-18 23:34:48 +0000
committerEvan Cheng <evan.cheng@apple.com>2007-07-18 23:34:48 +0000
commita8d152a22ad0b04464138b4df719e908ca543cbc (patch)
tree5e54cf94eba883721fdd8ac30c71ce5553d7103f /llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp
parentdcc3451f8a0014dcf30ccb6221c843cd42635e74 (diff)
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llvm-svn: 40022
Diffstat (limited to 'llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp')
-rw-r--r--llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp b/llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp
index 3d8618f6c4c..b714bac86a1 100644
--- a/llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp
+++ b/llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp
@@ -369,6 +369,9 @@ bool SimpleRegisterCoalescing::JoinCopy(MachineInstr *CopyMI,
// If the intervals were swapped by Join, swap them back so that the register
// mapping (in the r2i map) is correct.
if (Swapped) SrcInt.swap(DstInt);
+
+ // repSrcReg is guarateed to be the register whose live interval that is
+ // being merged.
li_->removeInterval(repSrcReg);
r2rMap_[repSrcReg] = repDstReg;
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