GlobalISel: Implement widenScalar for basic FP ops

llvm-svn: 351696

1 files changed, 13 insertions, 4 deletions

diff --git a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
index 100e4086a3b..4e76518660c 100644
--- a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
@@ -953,12 +953,21 @@ LegalizerHelper::widenScalar(MachineInstr &MI, unsigned TypeIdx, LLT WideTy) {
     widenScalarSrc(MI, WideTy, 2, TargetOpcode::G_SEXT);
     Observer.changedInstr(MI);
     return Legalized;
-
+  case TargetOpcode::G_FADD:
+  case TargetOpcode::G_FMUL:
+  case TargetOpcode::G_FSUB:
+  case TargetOpcode::G_FMA:
+  case TargetOpcode::G_FNEG:
+  case TargetOpcode::G_FABS:
+  case TargetOpcode::G_FDIV:
+  case TargetOpcode::G_FREM:
   case TargetOpcode::G_FCEIL:
-    if (TypeIdx != 0)
-      return UnableToLegalize;
+    assert(TypeIdx == 0);
     Observer.changingInstr(MI);
-    widenScalarSrc(MI, WideTy, 1, TargetOpcode::G_FPEXT);
+
+    for (unsigned I = 1, E = MI.getNumOperands(); I != E; ++I)
+      widenScalarSrc(MI, WideTy, I, TargetOpcode::G_FPEXT);
+
     widenScalarDst(MI, WideTy, 0, TargetOpcode::G_FPTRUNC);
     Observer.changedInstr(MI);
     return Legalized;