llvm-svn: 4137

These hash lookups were a major sink of time because they happen so often!

llvm-svn: 4136

llvm-svn: 4135

(1) Padding bytes between structure fields (for alignment) were never
    being emitted into the constant pool so the layout did not match!
(2) In printing constants, structures containing structures or arrays
    were never handled.
(3) Support new model for external/uninitialized/initialized globals.
    Uninitialized globals are no longer emitted since they are external.
    Initialized globals may go either in .bss or in .data.

llvm-svn: 4134

We now use %g1 instead since that is shared and volatile.

llvm-svn: 4133

llvm-svn: 4132

llvm-svn: 4131

(2) Use intelligent multiply selection code for array allocas.
(3) Don't use cache padding for alloca'd stack slots!
(4) Bug fix in handling call arguments: was not copying sixth FP arg
    to int reg. when calling a function with no prototype.

llvm-svn: 4130

llvm-svn: 4129

llvm-svn: 4128

this is a common case created by the front-end.

llvm-svn: 4127

instructions so that (a) constant folding is done automatically before
code generation, and (b) selection does not have to deal with them.
Also, check for ConstantPointerRefs in additional to GlobalValues
when creating a GEP to load a global address.

llvm-svn: 4126

llvm-svn: 4125

llvm-svn: 4124

* Extract makes all global vars external, so they don't have initializers

llvm-svn: 4121

llvm-svn: 4120

llvm-svn: 4119

llvm-svn: 4118

llvm-svn: 4117

merrily being inserted before/after the instruction!

llvm-svn: 4116

llvm-svn: 4115

llvm-svn: 4114

number of iterations.

llvm-svn: 4113

llvm-svn: 4112

llvm-svn: 4111

llvm-svn: 4110

  * use new api to get all nodes in the graph
  * Allow custom graph traits

llvm-svn: 4109

llvm-svn: 4108

llvm-svn: 4107

llvm-svn: 4106

llvm-svn: 4105

    Value::replaceAllUsesWith works with constants correctly.

llvm-svn: 4104

    bug FuncResolve/2002-08-19-ResolveGlobalVars.ll and gzip looks better.

llvm-svn: 4103

    similar to User::replaceUsesOfWith but actually does the right thing for
    constants.

llvm-svn: 4102

llvm-svn: 4101

llvm-svn: 4100

and global variables.

This fixes bug: FuncResolve/2002-08-19-ResolveGlobalVarsEasier.ll
And bug: SingleSource/UnitTests/2002-10-09-ArrayResolution.c

Note that this does not fix bug:
FunctionResolve/2002-08-19-ResolveGlobalVars.ll because replaceAllUsesWith
breaks when a constantexpr is pointing to the thing being replaced.  This
is more of an infrastructure problem than anything.

llvm-svn: 4099

llvm-svn: 4098

llvm-svn: 4097

llvm-svn: 4096