Two changes:
1. Default to having V9 instructions, instead of just V8.
2. unless -enable-sparc-v9-insts is passed, disable V9 (for use with llcbeta)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25807 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Sparc/SparcSubtarget.cpp b/lib/Target/Sparc/SparcSubtarget.cpp
index 9666ea9..46ea7d4 100644
--- a/lib/Target/Sparc/SparcSubtarget.cpp
+++ b/lib/Target/Sparc/SparcSubtarget.cpp
@@ -15,6 +15,13 @@
#include "SparcV8GenSubtarget.inc"
using namespace llvm;
+// FIXME: temporary.
+#include "llvm/Support/CommandLine.h"
+namespace {
+ cl::opt<bool> EnableV9("enable-sparc-v9-insts", cl::Hidden,
+ cl::desc("Enable V9 instructions in the V8 target"));
+}
+
SparcV8Subtarget::SparcV8Subtarget(const Module &M, const std::string &FS) {
// Set the default features.
IsV9 = false;
@@ -25,8 +32,12 @@
std::string CPU = "generic";
// FIXME: autodetect host here!
+ CPU = "v9"; // What is a good way to detect V9?
// Parse features string.
ParseSubtargetFeatures(FS, CPU);
+ // Unless explicitly enabled, disable the V9 instructions.
+ if (!EnableV9)
+ IsV9 = false;
};