[Hexagon] Replacing old fadd/fsub instructions and updating references.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226176 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/Hexagon/HexagonISelLowering.cpp b/lib/Target/Hexagon/HexagonISelLowering.cpp
index ef5d6b97fd6fb0b849221014fa31e57cfe50edae..cd7f3fdd9b199a0fdd12e01509edfe1a2deeb503 100644 (file)
--- a/lib/Target/Hexagon/HexagonISelLowering.cpp
+++ b/lib/Target/Hexagon/HexagonISelLowering.cpp
@@ -1109,6 +1109,9 @@ HexagonTargetLowering::HexagonTargetLowering(const TargetMachine &targetmachine)
   setLibcallName(RTLIB::DIV_F64, "__hexagon_divdf3");
   setOperationAction(ISD::FDIV, MVT::f64, Expand);
 
+  setLibcallName(RTLIB::ADD_F64, "__hexagon_adddf3");
+  setLibcallName(RTLIB::SUB_F64, "__hexagon_subdf3");
+
   setOperationAction(ISD::FSQRT, MVT::f32, Expand);
   setOperationAction(ISD::FSQRT, MVT::f64, Expand);
   setOperationAction(ISD::FSIN, MVT::f32, Expand);
@@ -1117,7 +1120,9 @@ HexagonTargetLowering::HexagonTargetLowering(const TargetMachine &targetmachine)
   if (Subtarget.hasV5TOps()) {
     // Hexagon V5 Support.
     setOperationAction(ISD::FADD, MVT::f32, Legal);
-    setOperationAction(ISD::FADD, MVT::f64, Legal);
+    setOperationAction(ISD::FADD, MVT::f64, Expand);
+    setOperationAction(ISD::FSUB, MVT::f32, Legal);
+    setOperationAction(ISD::FSUB, MVT::f64, Expand);
     setOperationAction(ISD::FP_EXTEND, MVT::f32, Legal);
     setCondCodeAction(ISD::SETOEQ, MVT::f32, Legal);
     setCondCodeAction(ISD::SETOEQ, MVT::f64, Legal);
@@ -1202,11 +1207,14 @@ HexagonTargetLowering::HexagonTargetLowering(const TargetMachine &targetmachine)
     setLibcallName(RTLIB::FPTOUINT_F64_I32, "__hexagon_fixunsdfsi");
     setLibcallName(RTLIB::FPTOUINT_F64_I64, "__hexagon_fixunsdfdi");
 
-    setLibcallName(RTLIB::ADD_F64, "__hexagon_adddf3");
-    setOperationAction(ISD::FADD, MVT::f64, Expand);
 
     setLibcallName(RTLIB::ADD_F32, "__hexagon_addsf3");
     setOperationAction(ISD::FADD, MVT::f32, Expand);
+    setOperationAction(ISD::FADD, MVT::f64, Expand);
+
+    setLibcallName(RTLIB::SUB_F32, "__hexagon_subsf3");
+    setOperationAction(ISD::FSUB, MVT::f32, Expand);
+    setOperationAction(ISD::FSUB, MVT::f64, Expand);
 
     setLibcallName(RTLIB::FPEXT_F32_F64, "__hexagon_extendsfdf2");
     setOperationAction(ISD::FP_EXTEND, MVT::f32, Expand);

diff --git a/lib/Target/Hexagon/HexagonInstrInfoV5.td b/lib/Target/Hexagon/HexagonInstrInfoV5.td
index b0c4305d4916f7419158f8dcafe85bfef0a91b10..d417d12841572ab9a13c33eeb22c54acefd8b9fe 100644 (file)
--- a/lib/Target/Hexagon/HexagonInstrInfoV5.td
+++ b/lib/Target/Hexagon/HexagonInstrInfoV5.td
@@ -148,6 +148,12 @@ let isCommutable = 1, isCodeGenOnly = 0 in {
 let isCodeGenOnly = 0 in
 def F2_sfsub : T_MInstFloat < "sfsub", 0b000, 0b001>;
 
+def: Pat<(f32 (fadd F32:$src1, F32:$src2)),
+         (F2_sfadd F32:$src1, F32:$src2)>;
+
+def: Pat<(f32 (fsub F32:$src1, F32:$src2)),
+         (F2_sfsub F32:$src1, F32:$src2)>;
+
 let Itinerary = M_tc_3x_SLOT23, isCodeGenOnly = 0 in {
   def F2_sfmax : T_MInstFloat < "sfmax", 0b100, 0b000>;
   def F2_sfmin : T_MInstFloat < "sfmin", 0b100, 0b001>;
@@ -489,35 +495,6 @@ def F2_dfimm_p : T_fimm <"dfmake", DoubleRegs, 0b1001, 0>;
 def F2_dfimm_n : T_fimm <"dfmake", DoubleRegs, 0b1001, 1>;
 }
 
-// Add
-let isCommutable = 1 in
-def fADD_rr : ALU64_rr<(outs IntRegs:$dst),
-            (ins IntRegs:$src1, IntRegs:$src2),
-            "$dst = sfadd($src1, $src2)",
-            [(set IntRegs:$dst, (fadd IntRegs:$src1, IntRegs:$src2))]>,
-          Requires<[HasV5T]>;
-
-let isCommutable = 1 in
-def fADD64_rr : ALU64_rr<(outs DoubleRegs:$dst), (ins DoubleRegs:$src1,
-                                                     DoubleRegs:$src2),
-               "$dst = dfadd($src1, $src2)",
-               [(set DoubleRegs:$dst, (fadd DoubleRegs:$src1,
-                                           DoubleRegs:$src2))]>,
-          Requires<[HasV5T]>;
-
-def fSUB_rr : ALU64_rr<(outs IntRegs:$dst),
-            (ins IntRegs:$src1, IntRegs:$src2),
-            "$dst = sfsub($src1, $src2)",
-            [(set IntRegs:$dst, (fsub IntRegs:$src1, IntRegs:$src2))]>,
-          Requires<[HasV5T]>;
-
-def fSUB64_rr : ALU64_rr<(outs DoubleRegs:$dst), (ins DoubleRegs:$src1,
-                                                     DoubleRegs:$src2),
-               "$dst = dfsub($src1, $src2)",
-               [(set DoubleRegs:$dst, (fsub DoubleRegs:$src1,
-                                           DoubleRegs:$src2))]>,
-               Requires<[HasV5T]>;
-
 let isCommutable = 1 in
 def fMUL_rr : ALU64_rr<(outs IntRegs:$dst),
             (ins IntRegs:$src1, IntRegs:$src2),

diff --git a/test/CodeGen/Hexagon/dadd.ll b/test/CodeGen/Hexagon/dadd.ll
index 602978ac01d3dd204e90631c42bdfc0cecf65453..a86a90c89a110aa4129258a152b758b22f429a0f 100644 (file)
--- a/test/CodeGen/Hexagon/dadd.ll
+++ b/test/CodeGen/Hexagon/dadd.ll
@@ -1,7 +1,7 @@
 ; RUN: llc -march=hexagon -mcpu=hexagonv5  < %s | FileCheck %s
 ; Check that we generate double precision floating point add in V5.
 
-; CHECK: r{{[0-9]+}}:{{[0-9]+}} = dfadd(r{{[0-9]+}}:{{[0-9]+}}, r{{[0-9]+}}:{{[0-9]+}})
+; CHECK: call __hexagon_adddf3
 
 
 define i32 @main() nounwind {

diff --git a/test/CodeGen/Hexagon/dsub.ll b/test/CodeGen/Hexagon/dsub.ll
index 4f9d39ed0b24bf983787872d54ac4b643804bacc..f271492d0578a730214b11f303c97a5bb548394f 100644 (file)
--- a/test/CodeGen/Hexagon/dsub.ll
+++ b/test/CodeGen/Hexagon/dsub.ll
@@ -1,7 +1,7 @@
 ; RUN: llc -march=hexagon -mcpu=hexagonv5  < %s | FileCheck %s
 ; Check that we generate double precision floating point subtract in V5.
 
-; CHECK: r{{[0-9]+}}:{{[0-9]+}} = dfsub(r{{[0-9]+}}:{{[0-9]+}}, r{{[0-9]+}}:{{[0-9]+}})
+; CHECK: call __hexagon_subdf3
 
 define i32 @main() nounwind {
 entry: