GlobalISel: translate floating-point constants

llvm-svn: 279311

2 files changed, 7 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp b/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
index 58235c2b823..1a243c54887 100644
--- a/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
@@ -408,6 +408,8 @@ bool IRTranslator::translate(const Instruction &Inst) {
 bool IRTranslator::translate(const Constant &C, unsigned Reg) {
   if (auto CI = dyn_cast<ConstantInt>(&C))
     EntryBuilder.buildConstant(LLT{*CI->getType()}, Reg, CI->getZExtValue());
+  else if (auto CF = dyn_cast<ConstantFP>(&C))
+    EntryBuilder.buildFConstant(LLT{*CF->getType()}, Reg, *CF);
   else if (isa<UndefValue>(C))
     EntryBuilder.buildInstr(TargetOpcode::IMPLICIT_DEF).addDef(Reg);
   else if (isa<ConstantPointerNull>(C))
diff --git a/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp b/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp
index 0d2fae659e8..2fe6eab8cb3 100644
--- a/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp
@@ -100,6 +100,11 @@ MachineInstrBuilder MachineIRBuilder::buildConstant(LLT Ty, unsigned Res,
   return buildInstr(TargetOpcode::G_CONSTANT, Ty).addDef(Res).addImm(Val);
 }
 
+MachineInstrBuilder MachineIRBuilder::buildFConstant(LLT Ty, unsigned Res,
+                                                    const ConstantFP &Val) {
+  return buildInstr(TargetOpcode::G_FCONSTANT, Ty).addDef(Res).addFPImm(&Val);
+}
+
 MachineInstrBuilder MachineIRBuilder::buildBrCond(LLT Ty, unsigned Tst,
                                                   MachineBasicBlock &Dest) {
   return buildInstr(TargetOpcode::G_BRCOND, Ty).addUse(Tst).addMBB(&Dest);