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Author SHA1 Message Date
Reid Spencer
1e4b3994a5 Re-apply last (reverted) patch. Reverting doesn't solve the actual problem 
and creates issues on other platforms like Cygwin and MingW.

llvm-svn: 19266
 2005-01-03 04:04:54 +00:00
Jeff Cohen
fd5f7ab829 Don't quote the PATH variable value just in case it has spaces in it, as 
it breaks "gmake check".

llvm-svn: 19265
 2005-01-03 02:44:54 +00:00
Chris Lattner
1aaf8cccb2 ADC and IMUL are also commutable. 
llvm-svn: 19264
 2005-01-03 01:27:59 +00:00
Chris Lattner
93fc4bd9cb This hunk: 
-  unsigned TrueValue = getReg(TrueVal, BB, BB->begin());
+  unsigned TrueValue = getReg(TrueVal);

Fixes the PPC regressions from last night.

The other hunk is just a clarity improvement.

llvm-svn: 19263
 2005-01-02 23:07:31 +00:00
Chris Lattner
dd2419276c Remove dead directories 
llvm-svn: 19262
 2005-01-02 22:55:16 +00:00
Chris Lattner
70d2c65415 This lib is dead 
llvm-svn: 19261
 2005-01-02 22:53:52 +00:00
Chris Lattner
80e1708bca Remove a bunch of useless empty libraries 
llvm-svn: 19260
 2005-01-02 22:52:28 +00:00
Chris Lattner
5d508e2ced This is no longer needed. 
llvm-svn: 19259
 2005-01-02 22:50:00 +00:00
Chris Lattner
3da8a04713 Testcase for PR494 
llvm-svn: 19258
 2005-01-02 21:11:11 +00:00
Chris Lattner
dcf0d97a87 xfail these tests, whcih require more info in the code generator to implement 
correctly.

llvm-svn: 19257
 2005-01-02 19:01:33 +00:00
Reid Spencer
a38d8140b6 Avoid use of -fomit-frame-pointer on FreeBSD platforms. It causes thrown 
exceptions to abort() in cases where it should not.

Many thanks to Duraid Madina for doing the heavy lifting on the analysis
of this problem.

llvm-svn: 19256
 2005-01-02 17:43:20 +00:00
Reid Spencer
9f11c90da3 Quote the PATH variable value just in case it has spaces in it (like on 
Cygwin).

llvm-svn: 19255
 2005-01-02 09:45:54 +00:00
Reid Spencer
110e76fd79 Correct the case of a #include directory name, just in case. 
llvm-svn: 19254
 2005-01-02 09:45:04 +00:00
Jeff Cohen
b29141a864 Cleanup some Visual Studio project dependencies. 
llvm-svn: 19253
 2005-01-02 04:44:36 +00:00
Jeff Cohen
1087b72875 Eliminate the use of the global variable hack in the X86 target that was used 
to get Visual Studio to link in X86.lib to the executables that need it.  There
is another way of doing it.

llvm-svn: 19252
 2005-01-02 04:23:12 +00:00
Chris Lattner
a78fd4726e Disable 2->3 address promotion of add and inc instructions to LEA's. In 
addition to being three address, LEA's don't set the flags.

This fixes 186.crafty.

llvm-svn: 19251
 2005-01-02 04:18:17 +00:00
Chris Lattner
3acdb8845e Check in an old test that never made it into CVS 
llvm-svn: 19250
 2005-01-02 02:46:29 +00:00
Chris Lattner
3ef32da6c3 Add a new method. 
llvm-svn: 19249
 2005-01-02 02:38:18 +00:00
Chris Lattner
95f1e628ed Add support for SETNPr to lower to memory form. 
llvm-svn: 19248
 2005-01-02 02:37:46 +00:00
Chris Lattner
d6bc921fa8 Implement the convertToThreeAddress method, add support for inverting JP/JNP 
branches.

llvm-svn: 19247
 2005-01-02 02:37:07 +00:00
Chris Lattner
0d6f03e52b Two changes here: 
1. Add new instructions for checking parity flags: JP, JNP, SETP, SETNP.
2. Set the isCommutable and isPromotableTo3Address bits on several
   instructions.

llvm-svn: 19246
 2005-01-02 02:35:46 +00:00
Chris Lattner
c1feb0c8fe Make the 2-address instruction lowering pass smarter in two ways: 
1. If we are two-addressing a commutable instruction and the LHS is not the
   last use of the variable, see if the instruction is the last use of the
   RHS.  If so, commute the instruction, allowing us to avoid a
   register-register copy in many cases for common instructions like ADD, OR,
   AND, etc on X86.
2. If #1 doesn't hold, and if this is an instruction that also existing in
   3-address form, promote the instruction to a 3-address instruction to
   avoid the register-register copy.  We can do this for several common
   instructions in X86, including ADDrr, INC, DEC, etc.

This patch implements test/Regression/CodeGen/X86/commute-two-addr.ll,
overlap-add.ll, and overlap-shift.ll when I check in the X86 support for it.

llvm-svn: 19245
 2005-01-02 02:34:12 +00:00
Chris Lattner
2cfe515d2b Add several testcases for new optimizations in the code generator. 
llvm-svn: 19244
 2005-01-02 02:30:04 +00:00
Chris Lattner
2aef5783b0 Expose isConvertibleToThreeAddress and isCommutable bits to the code generator. 
llvm-svn: 19243
 2005-01-02 02:29:04 +00:00
Chris Lattner
a008165daa Add some bits that can be set on instructions. Renumber existing bits so 
they are dense.  Add a virtual method that targets can choose to implement.

llvm-svn: 19242
 2005-01-02 02:28:31 +00:00
Chris Lattner
cc26e332b3 Add some bits that can be set for instructions. 
llvm-svn: 19241
 2005-01-02 02:27:48 +00:00
Reid Spencer
37f31d4aa1 Make printing a warning message optional in CheckBytecodeOutputToConsole. 
llvm-svn: 19240
 2005-01-02 00:10:03 +00:00
Reid Spencer
fb233f641d Prevent output of bytecode to std::cout unless the --force flag is given. 
This prevents bytecode splats with usage like: cat file.ll | llvm-as -

llvm-svn: 19239
 2005-01-02 00:08:46 +00:00
Reid Spencer
7d4a2f180f Move the code for printing out a warning about bytecode output to a console 
into lib/Support so it can be used with other tools.

llvm-svn: 19238
 2005-01-01 23:57:01 +00:00
Reid Spencer
2d73c4d556 Implement a function to print a warning if bytecode output is to be sent to 
a terminal/console.

llvm-svn: 19237
 2005-01-01 23:56:20 +00:00
Jeff Cohen
7466dd37d0 Add functions for determining if the stdin/out/err is connected to a 
console or not.

llvm-svn: 19236
 2005-01-01 22:54:05 +00:00
Jeff Cohen
11901e559d Add llvm-link, Linker projects to Visual Studio. 
llvm-svn: 19235
 2005-01-01 22:32:26 +00:00
Jeff Cohen
5899433ea2 Add missing header files to projects. 
llvm-svn: 19234
 2005-01-01 22:30:19 +00:00
Reid Spencer
ed2f874a8d Add functions for determining if the stdin/out/err is connected to a 
console or not.

llvm-svn: 19233
 2005-01-01 22:29:26 +00:00
Jeff Cohen
d3e59f9ac0 Fix typo 'ompress' => 'compress'. 
llvm-svn: 19232
 2005-01-01 22:10:32 +00:00
Jeff Cohen
bba2cc9d6a Add llvm-ranlib project to Visual Studio. 
llvm-svn: 19231
 2005-01-01 22:05:56 +00:00
Jeff Cohen
26e5b107ec Add llvm-ar project to Visual Studio. 
llvm-svn: 19230
 2005-01-01 22:00:28 +00:00
Jeff Cohen
35edbe7f00 Add -v option to bison. 
llvm-svn: 19229
 2005-01-01 21:35:39 +00:00
Jeff Cohen
748f1529e2 Add missing file SystemUtils.cpp to Support project. 
llvm-svn: 19228
 2005-01-01 21:34:18 +00:00
Jeff Cohen
8e751d4f87 Add llvm-as project to Visual Studio 
llvm-svn: 19227
 2005-01-01 20:51:41 +00:00
Jeff Cohen
6df3da7f26 Add llvm-dis project to Visual Studio 
llvm-svn: 19226
 2005-01-01 20:18:03 +00:00
Jeff Cohen
1d6b491438 Put executables into a single directory 
llvm-svn: 19225
 2005-01-01 19:37:14 +00:00
Jeff Cohen
1d174640fe Fix bountiful sources of VC++ 'possible loss of data' warnings 
llvm-svn: 19224
 2005-01-01 18:58:23 +00:00
Jeff Cohen
c1f4827e96 Improve TableGen dependencies 
Move TableGen generated files out of the src tree
Add descriptions to the custom build steps

llvm-svn: 19223
 2005-01-01 18:17:40 +00:00
Reid Spencer
560327d430 Add HAVE_SBRK 
llvm-svn: 19222
 2005-01-01 18:16:16 +00:00
Reid Spencer
15619e49d4 Ignore some files 
llvm-svn: 19221
 2005-01-01 18:14:18 +00:00
Chris Lattner
14d51ed06a This is a bulk commit that implements the following primary improvements: 
* We can now fold cast instructions into select instructions that
    have at least one constant operand.
  * We now optimize expressions more aggressively based on bits that are
    known to be zero.  These optimizations occur a lot in code that uses
    bitfields even in simple ways.
  * We now turn more cast-cast sequences into AND instructions.  Before we
    would only do this if it if all types were unsigned.  Now only the
    middle type needs to be unsigned (guaranteeing a zero extend).
  * We transform sign extensions into zero extensions in several cases.

This corresponds to these test/Regression/Transforms/InstCombine testcases:
  2004-11-22-Missed-and-fold.ll
  and.ll: test28-29
  cast.ll: test21-24
  and-or-and.ll
  cast-cast-to-and.ll
  zeroext-and-reduce.ll

llvm-svn: 19220
 2005-01-01 16:22:27 +00:00
Chris Lattner
5bd69087d9 New testcases that we should combine. 
llvm-svn: 19219
 2005-01-01 16:14:46 +00:00
Chris Lattner
2162178f04 New testcase for common bitfield manipulation instruction sequences. 
llvm-svn: 19218
 2005-01-01 16:14:18 +00:00
Chris Lattner
0e0786263d Add a bunch of tests for cases that should be eliminated. 
llvm-svn: 19217
 2005-01-01 16:13:43 +00:00