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| author | Evan Cheng <evan.cheng@apple.com> | 2007-11-05 06:46:45 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2007-11-05 06:46:45 +0000 |
| commit | 5031fd2d32a8ce5e82059928396e0c659e2a7c27 (patch) | |
| tree | dfbcbc48fd7170d7689763cd68509a52b2cc1426 /lib/CodeGen/SimpleRegisterCoalescing.cpp | |
| parent | 5942efb0e5f49fb772e340c251502cc0a7ff157e (diff) | |
| download | external_llvm-5031fd2d32a8ce5e82059928396e0c659e2a7c27.tar.gz external_llvm-5031fd2d32a8ce5e82059928396e0c659e2a7c27.tar.bz2 external_llvm-5031fd2d32a8ce5e82059928396e0c659e2a7c27.zip | |
Skip over deleted val#'s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43700 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SimpleRegisterCoalescing.cpp')
| -rw-r--r-- | lib/CodeGen/SimpleRegisterCoalescing.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/CodeGen/SimpleRegisterCoalescing.cpp b/lib/CodeGen/SimpleRegisterCoalescing.cpp index 0d90128bee..9993b633ad 100644 --- a/lib/CodeGen/SimpleRegisterCoalescing.cpp +++ b/lib/CodeGen/SimpleRegisterCoalescing.cpp @@ -805,7 +805,7 @@ bool SimpleRegisterCoalescing::JoinIntervals(LiveInterval &LHS, i != e; ++i) { VNInfo *VNI = *i; unsigned ValSrcReg = VNI->reg; - if (ValSrcReg == 0) // Src not defined by a copy? + if (VNI->def == ~1U ||ValSrcReg == 0) // Src not defined by a copy? continue; // DstReg is known to be a register in the LHS interval. If the src is @@ -823,7 +823,7 @@ bool SimpleRegisterCoalescing::JoinIntervals(LiveInterval &LHS, i != e; ++i) { VNInfo *VNI = *i; unsigned ValSrcReg = VNI->reg; - if (ValSrcReg == 0) // Src not defined by a copy? + if (VNI->def == ~1U || ValSrcReg == 0) // Src not defined by a copy? continue; // DstReg is known to be a register in the RHS interval. If the src is |