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-rw-r--r--llvm/lib/CodeGen/SelectionDAG/FastISel.cpp19
-rw-r--r--llvm/lib/Target/WebAssembly/CMakeLists.txt2
-rw-r--r--llvm/lib/Target/WebAssembly/Makefile1
-rw-r--r--llvm/lib/Target/WebAssembly/WebAssemblyFastISel.cpp81
-rw-r--r--llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp5
-rw-r--r--llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.h8
6 files changed, 116 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/FastISel.cpp b/llvm/lib/CodeGen/SelectionDAG/FastISel.cpp
index 047ea9050a2..8cf859cf517 100644
--- a/llvm/lib/CodeGen/SelectionDAG/FastISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/FastISel.cpp
@@ -1867,6 +1867,25 @@ unsigned FastISel::fastEmitInst_rii(unsigned MachineInstOpcode,
return ResultReg;
}
+unsigned FastISel::fastEmitInst_f(unsigned MachineInstOpcode,
+ const TargetRegisterClass *RC,
+ const ConstantFP *FPImm) {
+ const MCInstrDesc &II = TII.get(MachineInstOpcode);
+
+ unsigned ResultReg = createResultReg(RC);
+
+ if (II.getNumDefs() >= 1)
+ BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, II, ResultReg)
+ .addFPImm(FPImm);
+ else {
+ BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, II)
+ .addFPImm(FPImm);
+ BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
+ TII.get(TargetOpcode::COPY), ResultReg).addReg(II.ImplicitDefs[0]);
+ }
+ return ResultReg;
+}
+
unsigned FastISel::fastEmitInst_rf(unsigned MachineInstOpcode,
const TargetRegisterClass *RC, unsigned Op0,
bool Op0IsKill, const ConstantFP *FPImm) {
diff --git a/llvm/lib/Target/WebAssembly/CMakeLists.txt b/llvm/lib/Target/WebAssembly/CMakeLists.txt
index 66f585ae7ca..61959cf89f4 100644
--- a/llvm/lib/Target/WebAssembly/CMakeLists.txt
+++ b/llvm/lib/Target/WebAssembly/CMakeLists.txt
@@ -2,6 +2,7 @@ set(LLVM_TARGET_DEFINITIONS WebAssembly.td)
tablegen(LLVM WebAssemblyGenAsmWriter.inc -gen-asm-writer)
tablegen(LLVM WebAssemblyGenDAGISel.inc -gen-dag-isel)
+tablegen(LLVM WebAssemblyGenFastISel.inc -gen-fast-isel)
tablegen(LLVM WebAssemblyGenInstrInfo.inc -gen-instr-info)
tablegen(LLVM WebAssemblyGenMCCodeEmitter.inc -gen-emitter)
tablegen(LLVM WebAssemblyGenRegisterInfo.inc -gen-register-info)
@@ -11,6 +12,7 @@ add_public_tablegen_target(WebAssemblyCommonTableGen)
add_llvm_target(WebAssemblyCodeGen
Relooper.cpp
WebAssemblyAsmPrinter.cpp
+ WebAssemblyFastISel.cpp
WebAssemblyFrameLowering.cpp
WebAssemblyISelDAGToDAG.cpp
WebAssemblyISelLowering.cpp
diff --git a/llvm/lib/Target/WebAssembly/Makefile b/llvm/lib/Target/WebAssembly/Makefile
index a58e82d0c49..ccf63f0be55 100644
--- a/llvm/lib/Target/WebAssembly/Makefile
+++ b/llvm/lib/Target/WebAssembly/Makefile
@@ -15,6 +15,7 @@ TARGET = WebAssembly
BUILT_SOURCES = \
WebAssemblyGenAsmWriter.inc \
WebAssemblyGenDAGISel.inc \
+ WebAssemblyGenFastISel.inc \
WebAssemblyGenInstrInfo.inc \
WebAssemblyGenMCCodeEmitter.inc \
WebAssemblyGenRegisterInfo.inc \
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyFastISel.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyFastISel.cpp
new file mode 100644
index 00000000000..1b761b1a9d7
--- /dev/null
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyFastISel.cpp
@@ -0,0 +1,81 @@
+//===-- WebAssemblyFastISel.cpp - WebAssembly FastISel implementation -----===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// \brief This file defines the WebAssembly-specific support for the FastISel
+/// class. Some of the target-specific code is generated by tablegen in the file
+/// WebAssemblyGenFastISel.inc, which is #included here.
+///
+//===----------------------------------------------------------------------===//
+
+#include "WebAssembly.h"
+#include "MCTargetDesc/WebAssemblyMCTargetDesc.h"
+#include "WebAssemblySubtarget.h"
+#include "WebAssemblyTargetMachine.h"
+#include "llvm/Analysis/BranchProbabilityInfo.h"
+#include "llvm/CodeGen/FastISel.h"
+#include "llvm/CodeGen/FunctionLoweringInfo.h"
+#include "llvm/CodeGen/MachineConstantPool.h"
+#include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachineInstrBuilder.h"
+#include "llvm/CodeGen/MachineRegisterInfo.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/Function.h"
+#include "llvm/IR/GetElementPtrTypeIterator.h"
+#include "llvm/IR/GlobalAlias.h"
+#include "llvm/IR/GlobalVariable.h"
+#include "llvm/IR/Instructions.h"
+#include "llvm/IR/IntrinsicInst.h"
+#include "llvm/IR/Operator.h"
+using namespace llvm;
+
+#define DEBUG_TYPE "wasm-fastisel"
+
+namespace {
+
+class WebAssemblyFastISel final : public FastISel {
+ /// Keep a pointer to the WebAssemblySubtarget around so that we can make the
+ /// right decision when generating code for different targets.
+ const WebAssemblySubtarget *Subtarget;
+ LLVMContext *Context;
+
+ // Call handling routines.
+private:
+public:
+ // Backend specific FastISel code.
+ WebAssemblyFastISel(FunctionLoweringInfo &FuncInfo,
+ const TargetLibraryInfo *LibInfo)
+ : FastISel(FuncInfo, LibInfo, /*SkipTargetIndependentISel=*/true) {
+ Subtarget = &FuncInfo.MF->getSubtarget<WebAssemblySubtarget>();
+ Context = &FuncInfo.Fn->getContext();
+ }
+
+ bool fastSelectInstruction(const Instruction *I) override;
+
+#include "WebAssemblyGenFastISel.inc"
+};
+
+} // end anonymous namespace
+
+bool WebAssemblyFastISel::fastSelectInstruction(const Instruction *I) {
+ switch (I->getOpcode()) {
+ default:
+ break;
+ // TODO: add fast-isel selection cases here...
+ }
+
+ // Fall back to target-independent instruction selection.
+ return selectOperator(I, I->getOpcode());
+}
+
+FastISel *WebAssembly::createFastISel(FunctionLoweringInfo &FuncInfo,
+ const TargetLibraryInfo *LibInfo) {
+ return new WebAssemblyFastISel(FuncInfo, LibInfo);
+}
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
index 4cb3a3138e8..dfeec770d5a 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
@@ -151,6 +151,11 @@ WebAssemblyTargetLowering::WebAssemblyTargetLowering(
setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i32, Expand);
}
+FastISel *WebAssemblyTargetLowering::createFastISel(
+ FunctionLoweringInfo &FuncInfo, const TargetLibraryInfo *LibInfo) const {
+ return WebAssembly::createFastISel(FuncInfo, LibInfo);
+}
+
MVT WebAssemblyTargetLowering::getScalarShiftAmountTy(const DataLayout &DL,
EVT VT) const {
return VT.getSimpleVT();
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.h b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.h
index 9af4e455ad2..ea845cd4031 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.h
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.h
@@ -45,6 +45,9 @@ private:
/// right decision when generating code for different targets.
const WebAssemblySubtarget *Subtarget;
+ FastISel *createFastISel(FunctionLoweringInfo &FuncInfo,
+ const TargetLibraryInfo *LibInfo) const override;
+
MVT getScalarShiftAmountTy(const DataLayout &DL, EVT) const override;
const char *getTargetNodeName(unsigned Opcode) const override;
@@ -66,6 +69,11 @@ private:
SmallVectorImpl<SDValue> &InVals) const override;
};
+namespace WebAssembly {
+FastISel *createFastISel(FunctionLoweringInfo &funcInfo,
+ const TargetLibraryInfo *libInfo);
+} // end namespace WebAssembly
+
} // end namespace llvm
#endif
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