commit a11be047696cf71bb76517d1c1d63fefa123b49b
author Tim Northover <tnorthover@apple.com> Fri Aug 19 22:40:08 2016 +0000
committer Tim Northover <tnorthover@apple.com> Fri Aug 19 22:40:08 2016 +0000
tree 51fc04c07192b0f3cd9dc23e1a201917b47c808b
parent ea904f9424cc37c5ff7ac595e465ede2a10fdf0d

GlobalISel: support legalization of G_FCONSTANTs

llvm-svn: 279341

llvm/lib/CodeGen/GlobalISel/MachineLegalizeHelper.cpp

diff --git a/llvm/lib/CodeGen/GlobalISel/MachineLegalizeHelper.cpp b/llvm/lib/CodeGen/GlobalISel/MachineLegalizeHelper.cpp
index 632d629..9dc2bf8 100644
--- a/llvm/lib/CodeGen/GlobalISel/MachineLegalizeHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/MachineLegalizeHelper.cpp
@@ -141,6 +141,14 @@
     MI.eraseFromParent();
     return Legalized;
   }
+  case TargetOpcode::G_FCONSTANT: {
+    MIRBuilder.setInstr(MI);
+    unsigned DstExt = MRI.createGenericVirtualRegister(WideSize);
+    MIRBuilder.buildFConstant(WideTy, DstExt, *MI.getOperand(1).getFPImm());
+    MIRBuilder.buildFPTrunc(MI.getType(), MI.getOperand(0).getReg(), DstExt);
+    MI.eraseFromParent();
+    return Legalized;
+  }
   }
 }