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| author | Dan Gohman <gohman@apple.com> | 2011-07-26 22:00:59 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2011-07-26 22:00:59 +0000 |
| commit | c680b92460abaa8daa7796c05447f64b01b9f11b (patch) | |
| tree | f92c849ad4b064ba3d23034aeb750b52d4c43b37 /lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | |
| parent | 45f3929ef0dcdf281a10f23e031ffaba7664e7c0 (diff) | |
| download | external_llvm-c680b92460abaa8daa7796c05447f64b01b9f11b.zip external_llvm-c680b92460abaa8daa7796c05447f64b01b9f11b.tar.gz external_llvm-c680b92460abaa8daa7796c05447f64b01b9f11b.tar.bz2 | |
Delete unnecessarily cautious LastCALLSEQ code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136156 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/LegalizeDAG.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index aadfa26..57d6e8a 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -912,12 +912,7 @@ SDValue SelectionDAGLegalize::LegalizeOp(SDValue Op) { case ISD::BR_JT: case ISD::BR_CC: case ISD::BRCOND: - assert(LastCALLSEQ.size() == 1 && "branch inside CALLSEQ_BEGIN/END?"); - // Branches tweak the chain to include LastCALLSEQ - Ops[0] = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Ops[0], - getLastCALLSEQ()); Ops[0] = LegalizeOp(Ops[0]); - setLastCALLSEQ(DAG.getEntryNode()); break; case ISD::SHL: case ISD::SRL: @@ -1021,14 +1016,6 @@ SDValue SelectionDAGLegalize::LegalizeOp(SDValue Op) { // libcalls), create the new CALLSEQ_START node. Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. - // Merge in the last call to ensure that this call starts after the last - // call ended. - if (getLastCALLSEQ().getOpcode() != ISD::EntryToken) { - Tmp1 = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, - Tmp1, getLastCALLSEQ()); - Tmp1 = LegalizeOp(Tmp1); - } - // Do not try to legalize the target-specific arguments (#1+). if (Tmp1 != Node->getOperand(0)) { SmallVector<SDValue, 8> Ops(Node->op_begin(), Node->op_end()); @@ -1050,7 +1037,7 @@ SDValue SelectionDAGLegalize::LegalizeOp(SDValue Op) { setLastCALLSEQ(SDValue(CallEnd, 0)); // Legalize the call, starting from the CALLSEQ_END. - LegalizeOp(getLastCALLSEQ()); + LegalizeOp(SDValue(CallEnd, 0)); return Result; } case ISD::CALLSEQ_END: |