Soft float support for FREM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68614 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp b/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
index 5aa71ec0108f38f6439eefd567500dd779c5902c..8a214a11a5afbcf1dd507f7c4ca8a7ba42f2de43 100644 (file)
--- a/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
@@ -80,6 +80,7 @@ void DAGTypeLegalizer::SoftenFloatResult(SDNode *N, unsigned ResNo) {
     case ISD::FP_ROUND:    R = SoftenFloatRes_FP_ROUND(N); break;
     case ISD::FPOW:        R = SoftenFloatRes_FPOW(N); break;
     case ISD::FPOWI:       R = SoftenFloatRes_FPOWI(N); break;
+    case ISD::FREM:        R = SoftenFloatRes_FREM(N); break;
     case ISD::FRINT:       R = SoftenFloatRes_FRINT(N); break;
     case ISD::FSIN:        R = SoftenFloatRes_FSIN(N); break;
     case ISD::FSQRT:       R = SoftenFloatRes_FSQRT(N); break;
@@ -363,6 +364,18 @@ SDValue DAGTypeLegalizer::SoftenFloatRes_FPOWI(SDNode *N) {
                      NVT, Ops, 2, false, N->getDebugLoc());
 }
 
+SDValue DAGTypeLegalizer::SoftenFloatRes_FREM(SDNode *N) {
+  MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
+  SDValue Ops[2] = { GetSoftenedFloat(N->getOperand(0)),
+                     GetSoftenedFloat(N->getOperand(1)) };
+  return MakeLibCall(GetFPLibCall(N->getValueType(0),
+                                  RTLIB::REM_F32,
+                                  RTLIB::REM_F64,
+                                  RTLIB::REM_F80,
+                                  RTLIB::REM_PPCF128),
+                     NVT, Ops, 2, false, N->getDebugLoc());
+}
+
 SDValue DAGTypeLegalizer::SoftenFloatRes_FRINT(SDNode *N) {
   MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0));
   SDValue Op = GetSoftenedFloat(N->getOperand(0));

diff --git a/lib/CodeGen/SelectionDAG/LegalizeTypes.h b/lib/CodeGen/SelectionDAG/LegalizeTypes.h
index add978b02b6dc3035e452013ce7d7dc9e87cc557..8c68aef57b89fe45b8a1a12f566aecfdbb269587 100644 (file)
--- a/lib/CodeGen/SelectionDAG/LegalizeTypes.h
+++ b/lib/CodeGen/SelectionDAG/LegalizeTypes.h
@@ -414,6 +414,7 @@ private:
   SDValue SoftenFloatRes_FP_ROUND(SDNode *N);
   SDValue SoftenFloatRes_FPOW(SDNode *N);
   SDValue SoftenFloatRes_FPOWI(SDNode *N);
+  SDValue SoftenFloatRes_FREM(SDNode *N);
   SDValue SoftenFloatRes_FRINT(SDNode *N);
   SDValue SoftenFloatRes_FSIN(SDNode *N);
   SDValue SoftenFloatRes_FSQRT(SDNode *N);

diff --git a/test/CodeGen/ARM/2009-04-08-FREM.ll b/test/CodeGen/ARM/2009-04-08-FREM.ll
new file mode 100644 (file)
index 0000000..c7e343c
--- /dev/null
+++ b/test/CodeGen/ARM/2009-04-08-FREM.ll
@@ -0,0 +1,9 @@
+; RUN: llvm-as < %s | llc -march=arm
+
+declare i32 @printf(i8*, ...)
+
+define i32 @main() {
+       %rem_r = frem double 0.000000e+00, 0.000000e+00         ; <double> [#uses=1]
+       %1 = call i32 (i8*, ...)* @printf(i8* null, double %rem_r)              ; <i32> [#uses=0]
+       ret i32 0
+}