Added a temporary option -enable-x86-sse to enable sse support. It is used by
llc-beta.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25701 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp
index faa0907..32574d1 100644
--- a/lib/Target/X86/X86Subtarget.cpp
+++ b/lib/Target/X86/X86Subtarget.cpp
@@ -16,6 +16,13 @@
#include "X86GenSubtarget.inc"
using namespace llvm;
+// FIXME: temporary.
+#include "llvm/Support/CommandLine.h"
+namespace {
+ cl::opt<bool> EnableSSE("enable-x86-sse", cl::Hidden,
+ cl::desc("Enable sse on X86"));
+}
+
static void GetCpuIDAndInfo(unsigned value, unsigned *EAX, unsigned *EBX,
unsigned *ECX, unsigned *EDX) {
#if defined(i386) || defined(__i386__) || defined(__x86__) || defined(_M_IX86)
@@ -96,8 +103,10 @@
// FIXME: Force these off until they work. An llc-beta option should turn
// them back on.
- X86SSELevel = NoMMXSSE;
- X863DNowLevel = NoThreeDNow;
+ if (!EnableSSE) {
+ X86SSELevel = NoMMXSSE;
+ X863DNowLevel = NoThreeDNow;
+ }
// Set the boolean corresponding to the current target triple, or the default
// if one cannot be determined, to true.