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11704 Commits

Author SHA1 Message Date
Chris Lattner 8a9fd94cfe This is a trivial tweak to the addrec insertion code: insert the increment 
at the bottom of the loop instead of the top.  This reduces the number of
overlapping live ranges a lot, for example, eliminating a spill in an important
loop in 183.equake with linear scan.

I still need to make the exit comparison of the loop use the post-incremented
version of this variable, but this is an easy first step.

llvm-svn: 12952
 2004-04-14 21:11:25 +00:00
Brian Gaeke aec2bcd63b Add a TargetData to the PassManager regardless of the TargetMachine. 
This should unbreak the Sparc JIT again.

llvm-svn: 12949
 2004-04-14 17:45:52 +00:00
Brian Gaeke 9a2e37bccd Add a copy constructor for TargetData. 
llvm-svn: 12948
 2004-04-14 17:45:48 +00:00
Chris Lattner cea7f660bc We are now on LLVM 1.3 
Make autoconf default to checking to look to see if our funny directory exists

llvm-svn: 12947
 2004-04-14 16:32:34 +00:00
Chris Lattner 6d06918ef0 Regenerated 
llvm-svn: 12946
 2004-04-14 16:32:09 +00:00
John Criswell c4e72c9a0a Remove the return type check for llvm.readio. This check is done for all 
functions and is not needed here.
Simplify the pointer type check per Chris's suggestions.

llvm-svn: 12945
 2004-04-14 15:06:48 +00:00
John Criswell 0c654c6a4e Added code to verify that llvm.readio's pointer argument returns something 
that matches its return type.

llvm-svn: 12944
 2004-04-14 14:49:36 +00:00
John Criswell 917b641609 Test for memory mapped I/O intrinsics. 
llvm-svn: 12943
 2004-04-14 13:52:56 +00:00
John Criswell 23c48d63d6 Finish adding the llvm.readio and llvm.writeio intrinsics. 
Sorry these didn't get in yesterday.

llvm-svn: 12942
 2004-04-14 13:46:52 +00:00
Chris Lattner 6679e46b59 ADd a trivial instcombine: load null -> null 
llvm-svn: 12940
 2004-04-14 03:28:36 +00:00
Chris Lattner 0dc099c2b5 This is the real fix for Codegen/X86/2004-04-13-FPCMOV-Crash.llx which works 
even when the "optimization" I added before is turned off.  It generates this
extremely pointless code:

test:
        fld QWORD PTR [%ESP + 4]
        mov %AL, 0
        test %AL, %AL
        fcmove %ST(0), %ST(0)
        ret

Good thing the optimizer will have removed this before code generation
anyway.  :)

llvm-svn: 12939
 2004-04-14 02:42:32 +00:00
Chris Lattner 52acdaacc7 Temporarily hack in the intrinsics that John added. I expect him to finish up their addition, but in the meantime, the build should not be broken. 
llvm-svn: 12938
 2004-04-14 02:22:54 +00:00
John Criswell beded72a08 Added support for the llvm.readio and llvm.writeio intrinsics. 
On x86, memory operations occur in-order, so these are just lowered into
volatile loads and stores.

llvm-svn: 12936
 2004-04-13 22:13:14 +00:00
Chris Lattner 9042e381d8 Implement a small optimization, which papers over the problem in 
X86/2004-04-13-FPCMOV-Crash.llx

A more robust fix is to follow.

llvm-svn: 12935
 2004-04-13 21:56:09 +00:00
Chris Lattner ed94fef7e3 Fix bug, add support for +/- 
llvm-svn: 12934
 2004-04-13 21:48:43 +00:00
Chris Lattner 8662beeecd new testcase that crashes the fp stackifier 
llvm-svn: 12932
 2004-04-13 21:44:54 +00:00
Chris Lattner ed7a7d20c9 We actually don't have spiff anymore 
llvm-svn: 12929
 2004-04-13 20:59:47 +00:00
Chris Lattner 9a3ac1a956 Out with spiff, in with fpcmp 
llvm-svn: 12928
 2004-04-13 20:59:24 +00:00
Chris Lattner e542c1c422 Remove spiff. Though it looked good, it was not really as spiffy as it seemed 
llvm-svn: 12927
 2004-04-13 20:58:42 +00:00
Chris Lattner 5613bcc258 Okay, spiff is completely incapable of handling files of nontrivial size. 
Here is a simple minimal program that does what we want.  Instead of taking
minutes to compare mesa's output, and crashing on binary files (like spiff
does), this take < .02s in the common case and doesn't crash.

llvm-svn: 12926
 2004-04-13 20:55:49 +00:00
Chris Lattner cb5e795f1f Add a note 
llvm-svn: 12922
 2004-04-13 19:48:55 +00:00
Chris Lattner ff9362a8da Add SCCP support for constant folding calls, implementing: 
test/Regression/Transforms/SCCP/calltest.ll

llvm-svn: 12921
 2004-04-13 19:43:54 +00:00
Chris Lattner 9d42084081 New testcase 
llvm-svn: 12920
 2004-04-13 19:43:33 +00:00
Chris Lattner ca52d0468e Add a simple call constant propagation interface. 
llvm-svn: 12919
 2004-04-13 19:28:52 +00:00
Chris Lattner 7dacdb6f13 Add new interfaces 
llvm-svn: 12918
 2004-04-13 19:28:32 +00:00
Chris Lattner d0dc6d5295 Constant propagation should remove the dead instructions 
llvm-svn: 12917
 2004-04-13 19:28:20 +00:00
Chris Lattner e3debac3cd New testcase 
llvm-svn: 12916
 2004-04-13 19:28:09 +00:00
Brian Gaeke 9a79ed7b89 Regenerated using autoconf-2.57. 
llvm-svn: 12915
 2004-04-13 19:03:49 +00:00
Brian Gaeke fca4720590 Rewrite POV-Ray check as per PR301 
llvm-svn: 12914
 2004-04-13 19:02:51 +00:00
Chris Lattner becf6365d6 Increase buffer size again. *sigh* 
llvm-svn: 12912
 2004-04-13 18:43:18 +00:00
Chris Lattner f37bd007e4 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 763596e28d Fixed sized limits are bad... duh. 
llvm-svn: 12908
 2004-04-13 18:34:16 +00:00
Chris Lattner 7b9733dac2 Really spiff, don't chatter :) 
llvm-svn: 12907
 2004-04-13 18:33:21 +00:00
Brian Gaeke 6f6e4b9f59 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 969795b4ea 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 bacab88d42 Don't underline diffs 
llvm-svn: 12902
 2004-04-13 18:24:01 +00:00
Chris Lattner c71b096672 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 a340febe52 Add immediate forms of in/out. Use let to shorten lines 
llvm-svn: 12895
 2004-04-13 17:19:31 +00:00
Chris Lattner eaa28a29ae Add support for new instruction type 
llvm-svn: 12894
 2004-04-13 17:18:51 +00:00
Chris Lattner 27b2e2cdc0 Add support for the printImplicitDefsBefore flag 
llvm-svn: 12893
 2004-04-13 17:18:39 +00:00
Chris Lattner e342a8ef49 Make the testcase more challenging 
llvm-svn: 12892
 2004-04-13 17:18:07 +00:00
Chris Lattner 34fba8eb00 Reenable library now that the loopsimplify bug is fixed 
llvm-svn: 12891
 2004-04-13 16:24:53 +00:00
Chris Lattner 89e959bb1f 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 a7aeb506dd New testcase where loop simplify is not updating domfrontiers correctly 
llvm-svn: 12889
 2004-04-13 16:22:04 +00:00
Chris Lattner a6e22814ab 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 54dcea809f 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 277f7e6ebc Temporary hack to get the nightly tester running 
llvm-svn: 12886
 2004-04-13 13:57:29 +00:00
John Criswell ed868e14ff Added Spiff. 
llvm-svn: 12885
 2004-04-13 13:42:38 +00:00
Chris Lattner 8417052938 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 ff27406cf9 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