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Author SHA1 Message Date
Chris Lattner
8c0e9c95e9 Constant propagation should remove the dead instructions 
llvm-svn: 12917
 2004-04-13 19:28:20 +00:00
Chris Lattner
344d15008a New testcase 
llvm-svn: 12916
 2004-04-13 19:28:09 +00:00
Brian Gaeke
c4bd98ab79 Regenerated using autoconf-2.57. 
llvm-svn: 12915
 2004-04-13 19:03:49 +00:00
Brian Gaeke
4d774ffc6d Rewrite POV-Ray check as per PR301 
llvm-svn: 12914
 2004-04-13 19:02:51 +00:00
Chris Lattner
7600e1a723 Increase buffer size again. *sigh* 
llvm-svn: 12912
 2004-04-13 18:43:18 +00:00
Chris Lattner
ca7062b1d9 Don't index spiff. It should not count as lines of LLVM code 
llvm-svn: 12911
 2004-04-13 18:37:51 +00:00
Chris Lattner
0b4b2331f6 Fixed sized limits are bad... duh. 
llvm-svn: 12908
 2004-04-13 18:34:16 +00:00
Chris Lattner
c0e932457f Really spiff, don't chatter :) 
llvm-svn: 12907
 2004-04-13 18:33:21 +00:00
Brian Gaeke
336b83623a I don't think we have to have 4 extra allocated (but unused) bytes on the stack. 
llvm-svn: 12905
 2004-04-13 18:28:37 +00:00
Brian Gaeke
6d8a362874 I started working on casts, but I don't have anything compilable yet. 
llvm-svn: 12903
 2004-04-13 18:27:46 +00:00
Brian Gaeke
27ab76dbcb Don't underline diffs 
llvm-svn: 12902
 2004-04-13 18:24:01 +00:00
Chris Lattner
8b6bc380e3 Emit the immediate form of in/out when possible. 
Fix several bugs in the intrinsics:
  1. Make sure to copy the input registers before the instructions that use them
  2. Make sure to copy the value returned by 'in' out of EAX into the register
     it is supposed to be in.

This fixes assertions when using in/out and linear scan.

llvm-svn: 12896
 2004-04-13 17:20:37 +00:00
Chris Lattner
15ac62827e Add immediate forms of in/out. Use let to shorten lines 
llvm-svn: 12895
 2004-04-13 17:19:31 +00:00
Chris Lattner
ecbade26d5 Add support for new instruction type 
llvm-svn: 12894
 2004-04-13 17:18:51 +00:00
Chris Lattner
e8e60bf45f Add support for the printImplicitDefsBefore flag 
llvm-svn: 12893
 2004-04-13 17:18:39 +00:00
Chris Lattner
b8987d93b7 Make the testcase more challenging 
llvm-svn: 12892
 2004-04-13 17:18:07 +00:00
Chris Lattner
c85541fa70 Reenable library now that the loopsimplify bug is fixed 
llvm-svn: 12891
 2004-04-13 16:24:53 +00:00
Chris Lattner
70f6a0ddcf Fix LoopSimplify/2004-04-13-LoopSimplifyUpdateDomFrontier.ll 
LoopSimplify was not updating dominator frontiers correctly in some cases.

llvm-svn: 12890
 2004-04-13 16:23:25 +00:00
Chris Lattner
7ad15c5ea7 New testcase where loop simplify is not updating domfrontiers correctly 
llvm-svn: 12889
 2004-04-13 16:22:04 +00:00
Chris Lattner
ae63c235f9 Refactor code a bit to make it simpler and eliminate the goto 
llvm-svn: 12888
 2004-04-13 15:21:18 +00:00
Chris Lattner
a404874643 Add notes about some of the code quality improvements that have gone in 
llvm-svn: 12887
 2004-04-13 14:43:35 +00:00
Chris Lattner
c0fa7b5d9d Temporary hack to get the nightly tester running 
llvm-svn: 12886
 2004-04-13 13:57:29 +00:00
John Criswell
d41f8a3ad3 Added Spiff. 
llvm-svn: 12885
 2004-04-13 13:42:38 +00:00
Chris Lattner
faf377df58 This patch addresses PR35: Loop simplify should reconstruct nested loops. 
This is fairly straight-forward, but was a real nightmare to get just
perfect.  aarg.  :)

llvm-svn: 12884
 2004-04-13 05:05:33 +00:00
Brian Gaeke
08b81db73a Clean up the Spiff code so that it emits fewer warnings. This 
consists mostly of changing sloppy K&R C code to slightly more
disciplined K&R C code, and doing the usual things to shut gcc up.

llvm-svn: 12877
 2004-04-13 03:24:45 +00:00
Brian Gaeke
8feac10842 Build Spiff directory 
llvm-svn: 12876
 2004-04-12 22:53:51 +00:00
Brian Gaeke
52e364f301 Add the Spiff fp-aware diff utility from Bellcore 
llvm-svn: 12875
 2004-04-12 22:53:24 +00:00
Brian Gaeke
36093cb38c We don't need to insert TargetData into the PassManager here. 
llvm-svn: 12874
 2004-04-12 21:46:31 +00:00
Chris Lattner
d2ed0ee2cd new testcase 
llvm-svn: 12873
 2004-04-12 20:59:07 +00:00
Alkis Evlogimenos
40d8a6802b Fix bug introduced in previous commit. 
llvm-svn: 12872
 2004-04-12 20:26:39 +00:00
Chris Lattner
fd1cfeeb1d Add some methods that are useful for updating loop information. 
llvm-svn: 12871
 2004-04-12 20:26:17 +00:00
Alkis Evlogimenos
338004b75f Update testcase to illustrate the coalescing problem. The previous one did not work because of a fix in the x86 instruction selector. 
llvm-svn: 12870
 2004-04-12 19:04:22 +00:00
Alkis Evlogimenos
38984637d9 Correctly compute spill weights 
llvm-svn: 12869
 2004-04-12 17:39:20 +00:00
John Criswell
c477529404 Added testcase for the llvm.readport and llvm.writeport intrinsics. 
llvm-svn: 12868
 2004-04-12 16:42:43 +00:00
John Criswell
b612d46d37 Corrected the descriptions of the llvm.writeport and llvm.writeio 
intrinsics.

Modified llvm.readio and llvm.writeio to use pointers to memory instead
of integers.  This should take care of problems such as different pointer
sizes, casting integers to pointers, weird architectural pointer types, etc.

Re-worded the description of llvm.readio and llvm.writeio so that it should
be more clear as to why they should be used over regular loads/stores for
I/O.

llvm-svn: 12867
 2004-04-12 16:33:19 +00:00
Alkis Evlogimenos
bb422833e4 Print def lists a bit more compactly 
llvm-svn: 12866
 2004-04-12 15:57:58 +00:00
Alkis Evlogimenos
45bb1bbd1b Add same value coalescing testcase 
llvm-svn: 12865
 2004-04-12 15:40:25 +00:00
John Criswell
4c409cc2c4 Added initial design for the llvm.readio and llvm.writeio intrinsics. 
llvm-svn: 12864
 2004-04-12 15:02:16 +00:00
Chris Lattner
0bb60b108d Add a couple more IPO's 
llvm-svn: 12863
 2004-04-12 05:38:15 +00:00
Chris Lattner
4b1e880424 finegrainify namespacification 
llvm-svn: 12862
 2004-04-12 05:38:01 +00:00
Chris Lattner
a3d3872a88 Actually update the call graph as the inliner changes it. This allows us to 
execute other CallGraphSCCPasses after the inliner without crashing.

llvm-svn: 12861
 2004-04-12 05:37:29 +00:00
Chris Lattner
12e1831ffe Change the call graph class to have TWO external nodes, making call graph 
SCC passes much more useful.  In particular, this should fix the incredibly
stupid missed inlining opportunities that the inliner suffered from.

llvm-svn: 12860
 2004-04-12 05:36:32 +00:00
Chris Lattner
a688d42e8c Hrm, operator new and new[] do not belong here. We should not CSE them! :) 
llvm-svn: 12859
 2004-04-12 05:16:42 +00:00
Chris Lattner
603d821596 Add support for removing invoke instructions 
llvm-svn: 12858
 2004-04-12 05:15:13 +00:00
Chris Lattner
af22e5f826 Stop printing Function* 
llvm-svn: 12857
 2004-04-12 04:06:56 +00:00
Chris Lattner
1c83ee0436 Simplify code a bit, and be sure to mark the external node as potentially throwing 
llvm-svn: 12856
 2004-04-12 04:06:38 +00:00
Chris Lattner
43f754339a Fix issues that the local allocator has dealing with instructions that implicitly use ST(0) 
llvm-svn: 12855
 2004-04-12 03:02:48 +00:00
Chris Lattner
9cdc472518 No really, fix printing for LLC. I gotta get a way for CVS to whine at me if 
I have unsaved emacs buffers, geeze...

llvm-svn: 12854
 2004-04-12 01:52:04 +00:00
Chris Lattner
f1d59be0e8 Correct printing for LLC and the encoding for the JIT 
llvm-svn: 12853
 2004-04-12 01:50:04 +00:00
Chris Lattner
682a6361c7 Use the fucomi[p] instructions to perform floating point comparisons instead 
of the fucom[p][p] instructions.  This allows us to code generate this function

bool %test(double %X, double %Y) {
        %C = setlt double %Y, %X
        ret bool %C
}

... into:

test:
        fld QWORD PTR [%ESP + 4]
        fld QWORD PTR [%ESP + 12]
        fucomip %ST(1)
        fstp %ST(0)
        setb %AL
        movsx %EAX, %AL
        ret

where before we generated:

test:
        fld QWORD PTR [%ESP + 4]
        fld QWORD PTR [%ESP + 12]
        fucompp
**      fnstsw
**      sahf
        setb %AL
        movsx %EAX, %AL
        ret

The two marked instructions (which are the ones eliminated) are very bad,
because they serialize execution of the processor.  These instructions are
available on the PPRO and later, but since we already use cmov's we aren't
losing any portability.

I retained the old code for the day when we decide we want to support back
to the 386.

llvm-svn: 12852
 2004-04-12 01:43:36 +00:00