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: 35203

llvm-svn: 35202

llvm-svn: 35201

llvm-svn: 35200

llvm-svn: 35199

llvm-svn: 35198

llvm-svn: 35197

llvm-svn: 35196

llvm-svn: 35195

llvm-svn: 35194

llvm-svn: 35193

llvm-svn: 35192

llvm-svn: 35191

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

can be extended. This helps fix test/Assembler/2007-03-19-NegValue.ll

llvm-svn: 35179

greater than 64-bits don't have the sign bits extended on construction of
the APInt.

llvm-svn: 35178

llvm-svn: 35177

llvm-svn: 35176

Test that invalid numbered value references get an error message.

llvm-svn: 35175

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

named or numbered ValIDs.

llvm-svn: 35172

Radically simplify the SlotMachine. There is no need to keep Value planes
around any more. This change causes slot numbering to number all un-named,
non-void values starting at 0 and incrementing monotonically through the
function, regardless of type (including BasicBlocks). Getting slot numbers
is now a single lookup operation instead of a double lookup.

llvm-svn: 35171

Revise numeric value references to accommodate collapsed type planes.

llvm-svn: 35170

llvm-svn: 35169