Commit Graph

11742 Commits

Author SHA1 Message Date
Chris Lattner
64431dbce7 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
ffd151e5a9 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
94de925685 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
2ba048528f 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
6e48365ab9 Fix bug, add support for +/-
llvm-svn: 12934
2004-04-13 21:48:43 +00:00
Chris Lattner
197f2fcda2 new testcase that crashes the fp stackifier
llvm-svn: 12932
2004-04-13 21:44:54 +00:00
Chris Lattner
9dfaa1f6ba We actually don't have spiff anymore
llvm-svn: 12929
2004-04-13 20:59:47 +00:00
Chris Lattner
8b85738eb8 Out with spiff, in with fpcmp
llvm-svn: 12928
2004-04-13 20:59:24 +00:00
Chris Lattner
d5de2d698d 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
5fc6c15a31 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
e83cd11f13 Add a note
llvm-svn: 12922
2004-04-13 19:48:55 +00:00
Chris Lattner
545e77c9d5 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
486436b5ad New testcase
llvm-svn: 12920
2004-04-13 19:43:33 +00:00
Chris Lattner
778f09027f Add a simple call constant propagation interface.
llvm-svn: 12919
2004-04-13 19:28:52 +00:00
Chris Lattner
2bf8038c69 Add new interfaces
llvm-svn: 12918
2004-04-13 19:28:32 +00:00
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