It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Alpha/AlphaTargetMachine.cpp b/lib/Target/Alpha/AlphaTargetMachine.cpp
new file mode 100644
index 0000000..d4137a5
--- /dev/null
+++ b/lib/Target/Alpha/AlphaTargetMachine.cpp
@@ -0,0 +1,97 @@
+//===-- AlphaTargetMachine.cpp - Define TargetMachine for Alpha -----------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//
+//===----------------------------------------------------------------------===//
+
+#include "Alpha.h"
+#include "AlphaJITInfo.h"
+#include "AlphaTargetAsmInfo.h"
+#include "AlphaTargetMachine.h"
+#include "llvm/Module.h"
+#include "llvm/PassManager.h"
+#include "llvm/Target/TargetMachineRegistry.h"
+
+using namespace llvm;
+
+namespace {
+ // Register the targets
+ RegisterTarget<AlphaTargetMachine> X("alpha", " Alpha (incomplete)");
+}
+
+const TargetAsmInfo *AlphaTargetMachine::createTargetAsmInfo() const {
+ return new AlphaTargetAsmInfo(*this);
+}
+
+unsigned AlphaTargetMachine::getModuleMatchQuality(const Module &M) {
+ // We strongly match "alpha*".
+ std::string TT = M.getTargetTriple();
+ if (TT.size() >= 5 && TT[0] == 'a' && TT[1] == 'l' && TT[2] == 'p' &&
+ TT[3] == 'h' && TT[4] == 'a')
+ return 20;
+ // If the target triple is something non-alpha, we don't match.
+ if (!TT.empty()) return 0;
+
+ if (M.getEndianness() == Module::LittleEndian &&
+ M.getPointerSize() == Module::Pointer64)
+ return 10; // Weak match
+ else if (M.getEndianness() != Module::AnyEndianness ||
+ M.getPointerSize() != Module::AnyPointerSize)
+ return 0; // Match for some other target
+
+ return getJITMatchQuality()/2;
+}
+
+unsigned AlphaTargetMachine::getJITMatchQuality() {
+#ifdef __alpha
+ return 10;
+#else
+ return 0;
+#endif
+}
+
+AlphaTargetMachine::AlphaTargetMachine(const Module &M, const std::string &FS)
+ : DataLayout("e"),
+ FrameInfo(TargetFrameInfo::StackGrowsDown, 16, 0),
+ JITInfo(*this),
+ Subtarget(M, FS),
+ TLInfo(*this) {
+ setRelocationModel(Reloc::PIC_);
+}
+
+
+//===----------------------------------------------------------------------===//
+// Pass Pipeline Configuration
+//===----------------------------------------------------------------------===//
+
+bool AlphaTargetMachine::addInstSelector(FunctionPassManager &PM, bool Fast) {
+ PM.add(createAlphaISelDag(*this));
+ return false;
+}
+bool AlphaTargetMachine::addPreEmitPass(FunctionPassManager &PM, bool Fast) {
+ // Must run branch selection immediately preceding the asm printer
+ PM.add(createAlphaBranchSelectionPass());
+ return false;
+}
+bool AlphaTargetMachine::addAssemblyEmitter(FunctionPassManager &PM, bool Fast,
+ std::ostream &Out) {
+ PM.add(createAlphaLLRPPass(*this));
+ PM.add(createAlphaCodePrinterPass(Out, *this));
+ return false;
+}
+bool AlphaTargetMachine::addCodeEmitter(FunctionPassManager &PM, bool Fast,
+ MachineCodeEmitter &MCE) {
+ PM.add(createAlphaCodeEmitterPass(*this, MCE));
+ return false;
+}
+bool AlphaTargetMachine::addSimpleCodeEmitter(FunctionPassManager &PM,
+ bool Fast,
+ MachineCodeEmitter &MCE) {
+ return addCodeEmitter(PM, Fast, MCE);
+}