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Fix an extremely stupid bug that prevented first round of coalescing (physical regist...
author
Evan Cheng
<evan.cheng@apple.com>
Tue, 9 Oct 2007 23:36:27 +0000
(23:36 +0000)
committer
Evan Cheng
<evan.cheng@apple.com>
Tue, 9 Oct 2007 23:36:27 +0000
(23:36 +0000)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42820
91177308
-0d34-0410-b5e6-
96231b3b80d8
lib/CodeGen/SimpleRegisterCoalescing.cpp
patch
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diff --git
a/lib/CodeGen/SimpleRegisterCoalescing.cpp
b/lib/CodeGen/SimpleRegisterCoalescing.cpp
index
5ef838c
..
4c1a96d
100644
(file)
--- a/
lib/CodeGen/SimpleRegisterCoalescing.cpp
+++ b/
lib/CodeGen/SimpleRegisterCoalescing.cpp
@@
-861,7
+861,8
@@
void SimpleRegisterCoalescing::CopyCoalesceInMBB(MachineBasicBlock *MBB,
unsigned SrcReg, DstReg;
if (!tii_->isMoveInstr(*Inst, SrcReg, DstReg)) continue;
- if (TryAgain && !JoinCopy(Inst, SrcReg, DstReg, PhysOnly))
+ bool Success = JoinCopy(Inst, SrcReg, DstReg, PhysOnly);
+ if (TryAgain && !Success)
TryAgain->push_back(getCopyRec(Inst, SrcReg, DstReg));
}
}