llvm-svn: 17141

and aesthetic reasons, might as well finish the job

llvm-svn: 17140

llvm-svn: 17139

is no longer emitted, and we do not reference any MachineCodeForInstruction
information.

llvm-svn: 17138

* Delete blank chars at end of line to fit into 80 cols

llvm-svn: 17137

llvm-svn: 17136

because #undef becomes commented out in DataTypes.h.in due to autoheader

llvm-svn: 17135

loops.  This optimization is not turned on by default yet, but may be run
with the opt tool's -loop-reduce flag.  There are many FIXMEs listed in the
code that will make it far more applicable to a wide range of code, but you
have to start somewhere :)

This limited version currently triggers on the following tests in the
MultiSource directory:
pcompress2: 7 times
cfrac: 5 times
anagram: 2 times
ks: 6 times
yacr2: 2 times

llvm-svn: 17134

  special-case those definitions
* Add comments in #ifdef/#else/#endif clauses for ease of reading

llvm-svn: 17132

llvm-svn: 17131

http://mail.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20041011/019311.html

llvm-svn: 17130

llvm-svn: 17126

llvm-svn: 17125

Patch contributed by Morten Ofstad. Thanks Morten!

llvm-svn: 17124

Patch contributed by Morten Ofstad. Thanks Morten!

llvm-svn: 17123

Simplify code by simplifying terminators that branch to blocks that start
with an unreachable instruction.

llvm-svn: 17116

llvm-svn: 17115

llvm-svn: 17114

llvm-svn: 17113

llvm-svn: 17112

change hacks off 10K of bytecode from perlbmk (.5%) even though the front-end
is not generating them yet and we are not optimizing the resultant code.
This isn't too bad.

llvm-svn: 17111

llvm-svn: 17110

occurs in the entry node of a function

llvm-svn: 17109

particular, invoke ret values are only live in the normal dest of the invoke
not in the unwind dest.

llvm-svn: 17108

where C requires semicolons in some cases to indicate null statements.

llvm-svn: 17107

exercise that I'm not interested in tackling right now.  Just punt and treat them
like unwind's.

This 'fixes' test/Regression/Transforms/ADCE/unreachable-function.ll

llvm-svn: 17106

llvm-svn: 17105

If a function had no return instruction in it, and the result of the inlined
call instruction was used, we would crash.

llvm-svn: 17104

llvm-svn: 17103

Pass -single_module option to gcc when linking dynamic libraries for use with bugpoint, so that we can bugpoint multiple .cp files

llvm-svn: 17102

llvm-svn: 17101

This comes up many times in perlbmk and probably others.

llvm-svn: 17100

other blocks.

llvm-svn: 17099

unneccesary.  This allows us to delete several hundred phi nodes of the
form PHI(x,x,x,undef) from 253.perlbmk and probably other programs as well.

This implements Mem2Reg/UndefValuesMerge.ll

llvm-svn: 17098

llvm-svn: 17097

to think that PHI[4, undef] == 4.

llvm-svn: 17096

so prepare for this.

llvm-svn: 17095

0->field, which is illegal.  Now we print ((foo*)0)->field.

The second hunk is an optimization to not print undefined phi values.

llvm-svn: 17094

last night. :)  bork!

llvm-svn: 17093

llvm-svn: 17092