llvm-svn: 9128

* FunctionPassManager ctor now takes in a ModuleProvider
* run() materializes function before running passes on it

llvm-svn: 9126

* The VM is now constructed with a ModuleProvider

llvm-svn: 9125

* ExecutionEngine and VM can be constructed using a ModuleProvider.

llvm-svn: 9124

 * Add header comment
 * Remove extraneous #includes
 * Move the FileType enum into the GCC class
 * The GCC class is not virtual.
 * Move all of the "constructor" functions into the classes themselves
 * Stop using cl::list as arguments, use std::vector instead (which cl::list
   derives from)
 * Improve comments

llvm-svn: 9121

llvm-svn: 9119

off the bottom of the stack.  This fixes PR#41

llvm-svn: 9114

X86/linux.  :(  The problem is that a signal delivered while the function
is executing could clobber the functions stack.  This is a partial fix
for PR41.

llvm-svn: 9113

break dominance relationships, and is otherwise bad.  This fixes bug:
Inline/2003-10-13-AllocaDominanceProblem.ll.  This also fixes miscompilation
of 3 176.gcc source files (reload1.c, global.c, flow.c)

llvm-svn: 9109

253.perlbmk, and test/Programs/SingleSource/UnitTests/2003-10-13-SwitchTest.c!

llvm-svn: 9101

jello statistic for this (just divide #-bytes-of-code-emitted by 4).

Rewrite head-of-file comment.

llvm-svn: 9098

llvm-svn: 9097

llvm-svn: 9095

llvm-svn: 9094

multiple setjmp calls.

llvm-svn: 9093

multiple times.  This reduces the time to construct post-dominance sets a LOT.
For example, optimizing perlbmk goes from taking 12.9894s to 1.4074s.

llvm-svn: 9091

llvm-svn: 9081

llvm-svn: 9079

a lot of virtual method dispatch overhead.

llvm-svn: 9078

llvm-svn: 9077

llvm-svn: 9076

llvm-svn: 9075

* Fix a nasty initializer ordering bug.  Any only-CFG passes which registered
  themselves before the CFGOnlyAnalysis vector initialized got forgotten and
  thus got invalidated and recomputed.

In particular, in my compiled version of gccas, the Loop information pass was
being recomputed unnecessarily.

llvm-svn: 9074

llvm-svn: 9073

llvm-svn: 9072

llvm-svn: 9071

llvm-svn: 9069

llvm-svn: 9067

Only transform call sites in a setjmp'ing function which are reachable from
the setjmp.  If the call dominates the setjmp (for example), the called
function cannot longjmp to the setjmp.

This dramatically reduces the number of invoke instructions created in some
large testcases.

llvm-svn: 9066

have a SINGLE backedge.  This is useful to, for example, the -indvars pass.

This implements testcase LoopSimplify/single-backedge.ll and closes PR#34

llvm-svn: 9065

llvm-svn: 9063

llvm-svn: 9061

llvm-svn: 9059

llvm-svn: 9058

allows GCCAS to only run it once.

llvm-svn: 9056

llvm-svn: 9055

* Print floating point values using C99 hexadecimal style FP if possible.
  This increases the number of floating point constants that may be emitted
  inline, and improves precision for global variable initializers which
  can not be emitted in integer form.

This fixes the Olden/Power benchmark with the CBE!!!!

llvm-svn: 9052

* Fix isFPCSafeToPrint to find more constants safe to print, which it was
  failing because ftostr was padding with leading space characters.
* Scan the entire module for global constants instead of each function at a
  time.  This has the advantage of allowing us to emit constants at global
  scope instead of function scope.  This speeds FP programs quite a bit.

llvm-svn: 9048

Linux. This is consistent with what FreeBSD and Solaris both want.
This makes the JIT work on FreeBSD 5.1-RELEASE. Whee.

llvm-svn: 9045

llvm-svn: 9037