llvm-svn: 35228

instructions (that would have to be split later)

llvm-svn: 35227

llvm-svn: 35226

Avoid recursion, Use iterative algorithm.

llvm-svn: 35225

llvm-svn: 35224

Get pos/neg infinity the correct way.

llvm-svn: 35223

Use ETForest instead of DominatorSet.

llvm-svn: 35221

llvm-svn: 35220

llvm-svn: 35219

    mov lr, pc
    bx lr
So, the function was not called.

llvm-svn: 35218

llvm-svn: 35215

llvm-svn: 35214

llvm-svn: 35213

llvm-svn: 35211

llvm-svn: 35208

Make two piece constant generation as a single instruction. It's re-materialized as a load from constantpool.

llvm-svn: 35207

llvm-svn: 35206

llvm-svn: 35205

1) codegen a shift of a register as a shift, not an LEA.
2) teach the RA to convert a shift to an LEA instruction if it wants something
   in three-address form.

This gives us asm diffs like:

-       leal (,%eax,4), %eax
+       shll $2, %eax

which is faster on some processors and smaller on all of them.

and, more interestingly:

-       movl 24(%esi), %eax
-       leal (,%eax,4), %edi
+       movl 24(%esi), %edi
+       shll $2, %edi

Without #2, #1 was a significant pessimization in some cases.

This implements CodeGen/X86/shift-codegen.ll

llvm-svn: 35204

llvm-svn: 35202

llvm-svn: 35199

llvm-svn: 35198

llvm-svn: 35197

llvm-svn: 35196

llvm-svn: 35195

llvm-svn: 35194

llvm-svn: 35190

llvm-svn: 35189

Patch by Sheng Zhou.

llvm-svn: 35188

Patch by Zhou Sheng.

llvm-svn: 35187

llvm-svn: 35186

2. Replace uses of the "isPositive" utility function with APInt::isPositive

llvm-svn: 35185

Patch by Sheng Zhou.

llvm-svn: 35184

llvm-svn: 35183

parameter on ConstantInt::get to indicate the signedness of the intended
value.

llvm-svn: 35182

negative number. This is needed to fix test/Assembler/2007-03-19-NegValue.ll

llvm-svn: 35181

constructor. This helps to fix test/Assembler/2007-03-19-NegValue.ll

llvm-svn: 35180

llvm-svn: 35177

llvm-svn: 35174

Eliminate support for type planes in numbered values. This simplifies the
data structures involved in managing forward definitions, etc. Instead of
requiring maps from type to value, we can now just use a vector of values.
These changes also required rewrites of some support functions such as
InsertValue, getBBVal, and ResolveDefinitions. Some other cosmetic changes
were made as well.

llvm-svn: 35173