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-rw-r--r--lib/Target/R600/SILowerLiteralConstants.cpp107
1 files changed, 0 insertions, 107 deletions
diff --git a/lib/Target/R600/SILowerLiteralConstants.cpp b/lib/Target/R600/SILowerLiteralConstants.cpp
deleted file mode 100644
index 6f5fd36396..0000000000
--- a/lib/Target/R600/SILowerLiteralConstants.cpp
+++ /dev/null
@@ -1,107 +0,0 @@
-//===-- SILowerLiteralConstants.cpp - Lower intrs using literal constants--===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-/// \file
-/// \brief This pass performs the following transformation on instructions with
-/// literal constants:
-///
-/// %VGPR0 = V_MOV_IMM_I32 1
-///
-/// becomes:
-///
-/// BUNDLE
-/// * %VGPR = V_MOV_B32_32 SI_LITERAL_CONSTANT
-/// * SI_LOAD_LITERAL 1
-///
-/// The resulting sequence matches exactly how the hardware handles immediate
-/// operands, so this transformation greatly simplifies the code generator.
-///
-/// Only the *_MOV_IMM_* support immediate operands at the moment, but when
-/// support for immediate operands is added to other instructions, they
-/// will be lowered here as well.
-//===----------------------------------------------------------------------===//
-
-#include "AMDGPU.h"
-#include "llvm/CodeGen/MachineFunction.h"
-#include "llvm/CodeGen/MachineFunctionPass.h"
-#include "llvm/CodeGen/MachineInstrBuilder.h"
-#include "llvm/CodeGen/MachineInstrBundle.h"
-
-using namespace llvm;
-
-namespace {
-
-class SILowerLiteralConstantsPass : public MachineFunctionPass {
-
-private:
- static char ID;
- const TargetInstrInfo *TII;
-
-public:
- SILowerLiteralConstantsPass(TargetMachine &tm) :
- MachineFunctionPass(ID), TII(tm.getInstrInfo()) { }
-
- virtual bool runOnMachineFunction(MachineFunction &MF);
-
- const char *getPassName() const {
- return "SI Lower literal constants pass";
- }
-};
-
-} // End anonymous namespace
-
-char SILowerLiteralConstantsPass::ID = 0;
-
-FunctionPass *llvm::createSILowerLiteralConstantsPass(TargetMachine &tm) {
- return new SILowerLiteralConstantsPass(tm);
-}
-
-bool SILowerLiteralConstantsPass::runOnMachineFunction(MachineFunction &MF) {
- for (MachineFunction::iterator BB = MF.begin(), BB_E = MF.end();
- BB != BB_E; ++BB) {
- MachineBasicBlock &MBB = *BB;
- for (MachineBasicBlock::iterator I = MBB.begin(), Next = llvm::next(I);
- I != MBB.end(); I = Next) {
- Next = llvm::next(I);
- MachineInstr &MI = *I;
- switch (MI.getOpcode()) {
- default: break;
- case AMDGPU::S_MOV_IMM_I32:
- case AMDGPU::V_MOV_IMM_F32:
- case AMDGPU::V_MOV_IMM_I32: {
- unsigned MovOpcode;
- unsigned LoadLiteralOpcode;
- MachineOperand LiteralOp = MI.getOperand(1);
- if (AMDGPU::VReg_32RegClass.contains(MI.getOperand(0).getReg())) {
- MovOpcode = AMDGPU::V_MOV_B32_e32;
- } else {
- MovOpcode = AMDGPU::S_MOV_B32;
- }
- if (LiteralOp.isImm()) {
- LoadLiteralOpcode = AMDGPU::SI_LOAD_LITERAL_I32;
- } else {
- LoadLiteralOpcode = AMDGPU::SI_LOAD_LITERAL_F32;
- }
- MIBundleBuilder Bundle(MBB, I);
- Bundle
- .append(BuildMI(MF, MBB.findDebugLoc(I), TII->get(MovOpcode),
- MI.getOperand(0).getReg())
- .addReg(AMDGPU::SI_LITERAL_CONSTANT))
- .append(BuildMI(MF, MBB.findDebugLoc(I),
- TII->get(LoadLiteralOpcode))
- .addOperand(MI.getOperand(1)));
- llvm::finalizeBundle(MBB, Bundle.begin());
- MI.eraseFromParent();
- break;
- }
- }
- }
- }
- return false;
-}