[llvm-commits] CVS: llvm/lib/Target/Alpha/AlphaSubtarget.cpp
Andrew Lenharth
alenhar2 at cs.uiuc.edu
Fri Sep 30 13:24:49 PDT 2005
Changes in directory llvm/lib/Target/Alpha:
AlphaSubtarget.cpp updated: 1.1 -> 1.2
---
Log message:
subtarget support for CIX and FIX extentions (the only 2 I care about right now)
---
Diffs of the changes: (+35 -2)
AlphaSubtarget.cpp | 37 +++++++++++++++++++++++++++++++++++--
1 files changed, 35 insertions(+), 2 deletions(-)
Index: llvm/lib/Target/Alpha/AlphaSubtarget.cpp
diff -u llvm/lib/Target/Alpha/AlphaSubtarget.cpp:1.1 llvm/lib/Target/Alpha/AlphaSubtarget.cpp:1.2
--- llvm/lib/Target/Alpha/AlphaSubtarget.cpp:1.1 Thu Sep 29 17:54:56 2005
+++ llvm/lib/Target/Alpha/AlphaSubtarget.cpp Fri Sep 30 15:24:38 2005
@@ -16,13 +16,46 @@
#include "llvm/Module.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Target/SubtargetFeature.h"
+#include "llvm/Support/Debug.h"
using namespace llvm;
-//"alphaev67-unknown-linux-gnu"
+enum AlphaFeature {
+ AlphaFeatureCIX = 1 << 0,
+ AlphaFeatureFIX = 1 << 1,
+};
+
+/// Sorted (by key) array of values for CPU subtype.
+static const SubtargetFeatureKV AlphaSubTypeKV[] = {
+ { "ev56" , "Select the Alpha EV56 processor", 0 },
+ { "ev6" , "Select the Alpha EV6 processor", AlphaFeatureFIX },
+ { "ev67" , "Select the Alpha EV67 processor", AlphaFeatureFIX | AlphaFeatureCIX },
+ { "pca56" , "Select the Alpha PCA56 processor", 0 },
+ { "generic", "Select instructions for a generic Alpha processor (EV56)", 0 }
+};
+
+/// Length of AlphaSubTypeKV.
+static const unsigned AlphaSubTypeKVSize = sizeof(AlphaSubTypeKV)
+ / sizeof(SubtargetFeatureKV);
+
+/// Sorted (by key) array of values for CPU features.
+static SubtargetFeatureKV AlphaFeatureKV[] = {
+ { "FIX" , "Should FIX extentions be used" , AlphaFeatureFIX },
+ { "CIX", "Should CIX extentions be used" , AlphaFeatureCIX }
+ };
+/// Length of AlphaFeatureKV.
+static const unsigned AlphaFeatureKVSize = sizeof(AlphaFeatureKV)
+ / sizeof(SubtargetFeatureKV);
AlphaSubtarget::AlphaSubtarget(const Module &M, const std::string &FS)
:HasF2I(false), HasCT(false)
{
-//TODO: figure out host
+ std::string CPU = "generic";
+ uint32_t Bits =
+ SubtargetFeatures::Parse(FS, CPU,
+ AlphaSubTypeKV, AlphaSubTypeKVSize,
+ AlphaFeatureKV, AlphaFeatureKVSize);
+ HasF2I = (Bits & AlphaFeatureFIX) != 0;
+ HasCT = (Bits & AlphaFeatureCIX) != 0;
+
}
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