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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2006-10-06 19:10:05 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2006-10-06 19:10:05 +0000 |
| commit | 614057b843e5b27963095c42042a232e85527f02 (patch) | |
| tree | d8e94cf02d2d9afee0dfd41322bd03410a881cab | |
| parent | 3cff9f8947fe4792f3266aa9b7f8de8f039bd34a (diff) | |
add support for calling functions that return double
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30771 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/ARM/ARMISelDAGToDAG.cpp | 27 | ||||
| -rw-r--r-- | test/CodeGen/ARM/fp.ll | 10 |
2 files changed, 26 insertions, 11 deletions
diff --git a/lib/Target/ARM/ARMISelDAGToDAG.cpp b/lib/Target/ARM/ARMISelDAGToDAG.cpp index 167c052c33..beb0d6775a 100644 --- a/lib/Target/ARM/ARMISelDAGToDAG.cpp +++ b/lib/Target/ARM/ARMISelDAGToDAG.cpp @@ -308,14 +308,25 @@ static SDOperand LowerCALL(SDOperand Op, SelectionDAG &DAG) { NodeTys.clear(); // If the call has results, copy the values out of the ret val registers. - switch (Op.Val->getValueType(0)) { - default: assert(0 && "Unexpected ret value!"); - case MVT::Other: - break; - case MVT::i32: - Chain = DAG.getCopyFromReg(Chain, ARM::R0, MVT::i32, InFlag).getValue(1); - ResultVals.push_back(Chain.getValue(0)); - NodeTys.push_back(MVT::i32); + MVT::ValueType VT = Op.Val->getValueType(0); + if (VT != MVT::Other) { + assert(VT == MVT::i32 || VT == MVT::f32 || VT == MVT::f64); + SDOperand Value; + + SDOperand Value1 = DAG.getCopyFromReg(Chain, ARM::R0, MVT::i32, InFlag); + Chain = Value1.getValue(1); + InFlag = Value1.getValue(2); + if (VT == MVT::i32) + Value = Value1; + if (VT == MVT::f32) + Value = DAG.getNode(ISD::BIT_CONVERT, MVT::f32, Value1); + if (VT == MVT::f64) { + SDOperand Value2 = DAG.getCopyFromReg(Chain, ARM::R1, MVT::i32, InFlag); + Chain = Value2.getValue(1); + Value = DAG.getNode(ARMISD::FMDRR, MVT::f64, Value1, Value2); + } + ResultVals.push_back(Value); + NodeTys.push_back(VT); } Chain = DAG.getNode(ISD::CALLSEQ_END, MVT::Other, Chain, diff --git a/test/CodeGen/ARM/fp.ll b/test/CodeGen/ARM/fp.ll index 22382ea185..50c03956fc 100644 --- a/test/CodeGen/ARM/fp.ll +++ b/test/CodeGen/ARM/fp.ll @@ -29,8 +29,12 @@ double %f2(double %a) { ret double %a } -void %f3(double %a) { - call void %f4( double %a) - ret void +void %f3() { +entry: + %tmp = call double %f5() ; <double> [#uses=1] + call void %f4(double %tmp ) + ret void } + declare void %f4(double) +declare double %f5() |