diff options
| author | Kyle Butt <kyle+llvm@iteratee.net> | 2016-09-02 01:20:06 +0000 |
|---|---|---|
| committer | Kyle Butt <kyle+llvm@iteratee.net> | 2016-09-02 01:20:06 +0000 |
| commit | 93e94e8a12fb4320ee15338a13af72058090387e (patch) | |
| tree | ec899b2fed75a359b32a255a498236008bd64d6b /llvm/lib/CodeGen/IfConversion.cpp | |
| parent | c906ff63da6709a6adb4e3bb7038dd5348981556 (diff) | |
| download | bcm5719-llvm-93e94e8a12fb4320ee15338a13af72058090387e.tar.gz bcm5719-llvm-93e94e8a12fb4320ee15338a13af72058090387e.zip | |
IfConversion: Don't count branches in # of duplicates.
If the entire blocks match, we would count the branch instructions
toward the number of duplicated instructions. This doesn't match what we
do elsewhere, and was causing a bug.
llvm-svn: 280448
Diffstat (limited to 'llvm/lib/CodeGen/IfConversion.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/IfConversion.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/IfConversion.cpp b/llvm/lib/CodeGen/IfConversion.cpp index 2110f443a19..76b4f3432a6 100644 --- a/llvm/lib/CodeGen/IfConversion.cpp +++ b/llvm/lib/CodeGen/IfConversion.cpp @@ -671,7 +671,9 @@ bool IfConverter::CountDuplicatedInstructions( std::vector<MachineOperand> PredDefs; if (TII->DefinesPredicate(*TIB, PredDefs)) return false; - ++Dups1; + // If we get all the way to the branch instructions, don't count them. + if (!TIB->isBranch()) + ++Dups1; ++TIB; ++FIB; } |
