GlobalISel: Add buildFConstant for APFloat

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@360853 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h b/include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h
index ee1e2daca223a4da360626c96d9ec7034e37e868..751ecb678d483b2fbe236cea252f7f7ce7a4a6fa 100644 (file)
--- a/include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h
+++ b/include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h
@@ -632,6 +632,7 @@ public:
                                              const ConstantFP &Val);
 
   MachineInstrBuilder buildFConstant(const DstOp &Res, double Val);
+  MachineInstrBuilder buildFConstant(const DstOp &Res, const APFloat &Val);
 
   /// Build and insert \p Res = COPY Op
   ///

diff --git a/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp b/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp
index 735d44190831fff493ee271a21817ea1cb26e634..1ee982f2fe36e4c2dac49acb688c1aca440356b5 100644 (file)
--- a/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp
+++ b/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp
@@ -312,6 +312,13 @@ MachineInstrBuilder MachineIRBuilder::buildFConstant(const DstOp &Res,
   return buildFConstant(Res, *CFP);
 }
 
+MachineInstrBuilder MachineIRBuilder::buildFConstant(const DstOp &Res,
+                                                     const APFloat &Val) {
+  auto &Ctx = getMF().getFunction().getContext();
+  auto *CFP = ConstantFP::get(Ctx, Val);
+  return buildFConstant(Res, *CFP);
+}
+
 MachineInstrBuilder MachineIRBuilder::buildBrCond(unsigned Tst,
                                                   MachineBasicBlock &Dest) {
   assert(getMRI()->getType(Tst).isScalar() && "invalid operand type");

diff --git a/unittests/CodeGen/GlobalISel/MachineIRBuilderTest.cpp b/unittests/CodeGen/GlobalISel/MachineIRBuilderTest.cpp
index e53dc80005d4d47101238df36f75e365bc95a9e5..f9ce4241b50bd608f132c6099aac78d191338bfe 100644 (file)
--- a/unittests/CodeGen/GlobalISel/MachineIRBuilderTest.cpp
+++ b/unittests/CodeGen/GlobalISel/MachineIRBuilderTest.cpp
@@ -19,6 +19,10 @@ TEST_F(GISelMITest, TestBuildConstantFConstant) {
   B.buildConstant(LLT::vector(2, 32), 99);
   B.buildFConstant(LLT::vector(2, 32), 2.0);
 
+  // Test APFloat overload.
+  APFloat KVal(APFloat::IEEEdouble(), "4.0");
+  B.buildFConstant(LLT::scalar(64), KVal);
+
   auto CheckStr = R"(
   CHECK: [[CONST0:%[0-9]+]]:_(s32) = G_CONSTANT i32 42
   CHECK: [[FCONST0:%[0-9]+]]:_(s32) = G_FCONSTANT float 1.000000e+00
@@ -26,6 +30,7 @@ TEST_F(GISelMITest, TestBuildConstantFConstant) {
   CHECK: [[VEC0:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[CONST1]]:_(s32), [[CONST1]]:_(s32)
   CHECK: [[FCONST1:%[0-9]+]]:_(s32) = G_FCONSTANT float 2.000000e+00
   CHECK: [[VEC1:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[FCONST1]]:_(s32), [[FCONST1]]:_(s32)
+  CHECK: [[FCONST2:%[0-9]+]]:_(s64) = G_FCONSTANT double 4.000000e+00
   )";
 
   EXPECT_TRUE(CheckMachineFunction(*MF, CheckStr)) << *MF;