diff options
| author | Chris Lattner <sabre@nondot.org> | 2005-10-05 06:47:48 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2005-10-05 06:47:48 +0000 |
| commit | 3ea0b47f81caeb53f9594dd3f7702ae01c4f2cc6 (patch) | |
| tree | 94d4a111990e4e5c7b0cb48af83db7e0e6d7fa6f /lib/CodeGen/SelectionDAG/SelectionDAG.cpp | |
| parent | ad13715ed4068a347452de9a86f5c1a702458f83 (diff) | |
implement visitBR_CC so that PowerPC/inverted-bool-compares.ll passes
with the dag combiner. This speeds up espresso by 8%, reaching performance
parity with the dag-combiner-disabled llc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23636 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 35b6b5748c..f1d81bcfb6 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -1963,6 +1963,9 @@ SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT, assert(Ops.size() == 5 && "BR_CC takes 5 operands!"); assert(Ops[2].getValueType() == Ops[3].getValueType() && "LHS/RHS of comparison should match types!"); + + if (CombinerEnabled) break; // xforms moved to dag combine. + // Use SimplifySetCC to simplify SETCC's. SDOperand Simp = SimplifySetCC(MVT::i1, Ops[2], Ops[3], cast<CondCodeSDNode>(Ops[1])->get()); |