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1662 Commits

Author SHA1 Message Date
Chris Lattner
9bb0083d16 Remove support for llvm.isnan. Alkis wins :) 
llvm-svn: 14189
 2004-06-15 21:48:07 +00:00
Chris Lattner
d11493d8c4 Add basic support for the isunordered intrinsic. The isnan stuff still needs to go 
llvm-svn: 14185
 2004-06-15 21:36:44 +00:00
Brian Gaeke
0a7b268b1a Fix thinko in visitor... ShiftInsts should currently be delegated 
to visitBinaryOperator.

llvm-svn: 14182
 2004-06-15 21:09:46 +00:00
Brian Gaeke
5fe5e06bea I think we'll use the standard lowering passes for now. 
llvm-svn: 14179
 2004-06-15 20:37:12 +00:00
Brian Gaeke
d5f45ba4a1 Fix bug generating code for void call instructions: don't call 
getReg() on void value.

llvm-svn: 14178
 2004-06-15 20:06:32 +00:00
Brian Gaeke
79008f4648 Squash a warning from the Solaris assembler by aligning the stack 
on a double-word boundary instead of a single-word boundary.

llvm-svn: 14177
 2004-06-15 19:53:10 +00:00
Brian Gaeke
e02c780919 Allow special-casing of operand printing based on opcode. Print 
non-register, non-immed. arguments to SETHI and OR using %hi() and
%lo() respectively.

llvm-svn: 14176
 2004-06-15 19:52:59 +00:00
Brian Gaeke
b158cb6411 Support constant GEP expressions. 
Support copying long constants to register pairs.
Support copying ConstantPointerNulls and ConstantPointerRefs to registers.

llvm-svn: 14175
 2004-06-15 19:16:07 +00:00
Misha Brukman
130e02f232 Add file comment. 
llvm-svn: 14172
 2004-06-14 15:13:59 +00:00
Brian Gaeke
21e2dd53d8 Make -print-machineinstrs even stronger. You get to see the final code after 
peepholing, and make it work the same way in the JIT as in LLC.

llvm-svn: 14170
 2004-06-14 05:05:45 +00:00
Chris Lattner
3a8e675c03 By far, one of the most common uses of isnan is to make 'isunordered' 
comparisons.  In an 'isunordered' predicate, which looks like this at
the LLVM level:

        %a = call bool %llvm.isnan(double %X)
        %b = call bool %llvm.isnan(double %Y)
        %COM = or bool %a, %b

We used to generate this code:

        fxch %ST(1)
        fucomip %ST(0), %ST(0)
        setp %AL
        fucomip %ST(0), %ST(0)
        setp %AH
        or %AL, %AH

With this patch, we generate this code:

        fucomip %ST(0), %ST(1)
        fstp %ST(0)
        setp %AL

Which should make alkis happy.  Tested as X86/compare_folding.llx:test1

llvm-svn: 14148
 2004-06-11 05:33:49 +00:00
Chris Lattner
f78e3e7f63 Fix bug in previous checkin 
llvm-svn: 14146
 2004-06-11 05:22:44 +00:00
Chris Lattner
7d8093efb1 No really, these are dead now 
llvm-svn: 14145
 2004-06-11 04:50:14 +00:00
Chris Lattner
a8e603b719 Now that compare instructions aren't lumped in with the other twoargfp instructions, 
we can get rid of the FpUCOM/FpUCOMi pseudo instructions, which makes stuff simpler
and faster.

llvm-svn: 14144
 2004-06-11 04:49:02 +00:00
Chris Lattner
b050f778ca Introduce a new FP instruction type to separate the compare cases from the 
twoarg cases.

llvm-svn: 14143
 2004-06-11 04:41:24 +00:00
Chris Lattner
edb06042b9 Add direct support for the isnan intrinsic, implementing test/Regression/CodeGen/X86/isnan.llx 
testcase

llvm-svn: 14141
 2004-06-11 04:31:10 +00:00
Chris Lattner
4c8b57ea31 Add support for the setp instructions 
llvm-svn: 14140
 2004-06-11 04:30:06 +00:00
Chris Lattner
c66e996765 Split compare instruction handling OUT of handleTwoArgFP into handleCompareFP. 
This makes the code much simpler, and the two cases really do belong apart.
Once we do it, it's pretty obvious how flawed the logic was for A != A case,
so I fixed it (fixing PR369).

This also uses freeStackSlotAfter instead of inserting an fxchg then
popStackAfter'ing in the case where there is a dead result (unlikely, but
possible), producing better code.

llvm-svn: 14139
 2004-06-11 04:25:06 +00:00
Brian Gaeke
c5bb88c934 Turn loads of ConstantPointerNulls into loads of zero... don't spill 
them into the constant pool.

llvm-svn: 14128
 2004-06-11 02:03:48 +00:00
Chris Lattner
1f0e0d55c4 Fix the fixed stack offset, patch contributed by Vladimir Prus 
llvm-svn: 14110
 2004-06-10 06:19:25 +00:00
Brian Gaeke
9cf9c6e184 Encode %fsr correctly; don't fail an assertion. 
llvm-svn: 14103
 2004-06-09 21:54:59 +00:00
Brian Gaeke
badbc7476a Fix encoding of ST*FSR instructions. 
llvm-svn: 14102
 2004-06-09 21:54:58 +00:00
Brian Gaeke
8e446cf7a2 Fix assertion failure message to have the right method name. 
llvm-svn: 14101
 2004-06-09 20:44:42 +00:00
John Criswell
287e3fc88b Fix for PR#366. We use getClassB() so that we can handle cast instructions 
that cast to bool.

llvm-svn: 14096
 2004-06-09 15:18:51 +00:00
Brian Gaeke
91a3d0f55f Fix a minor bug in the map - since this pass adds a global symbol, it must be 
accounted for in the map (at least, in its current format).

llvm-svn: 14075
 2004-06-08 20:08:30 +00:00
Brian Gaeke
4b0b12c188 Add a TmpInstruction ctor that doesn't take a MCFI. 
llvm-svn: 14073
 2004-06-08 18:52:46 +00:00
Brian Gaeke
c6715bec89 Fix up some spacing & fix a typo in an assertion in cpValue2Value. 
llvm-svn: 14027
 2004-06-04 20:51:40 +00:00
Chris Lattner
c51b272047 This file is obsolete 
llvm-svn: 14005
 2004-06-04 00:15:21 +00:00
Brian Gaeke
4f0fc86456 Add new internal-global-symbol mapping info pass... may its life be short 
and sweet.

llvm-svn: 13983
 2004-06-03 05:03:37 +00:00
Brian Gaeke
e3a1c92896 Add new mapping info pass, when EmitMappingInfo is on. 
llvm-svn: 13981
 2004-06-03 05:03:01 +00:00
Brian Gaeke
ceb3e78152 Fix big mistake in my last checkin... the big question is, how did I ever 
get this to link before?

llvm-svn: 13980
 2004-06-03 05:03:00 +00:00
Brian Gaeke
a960c641e0 Add decl. for new mapping info pass factory method. 
llvm-svn: 13979
 2004-06-03 05:02:59 +00:00
Brian Gaeke
e3e792cefa Collapse together the abstract superclass TargetRegInfo and SparcV9RegInfo, its 
only concrete implementation.

llvm-svn: 13977
 2004-06-03 02:45:09 +00:00
Chris Lattner
42730da855 <alloca.h> on cygwin pulls in a ton of stuff (macros and function protos) 
that we REALLY don't want in the CBE code.

With this fix, the CBE passes all of the MultiSource tests on cygwin that
it does on linux.  Yaay!

llvm-svn: 13975
 2004-06-02 23:10:26 +00:00
Chris Lattner
74da010962 Adjust to new TM interface 
llvm-svn: 13954
 2004-06-02 05:56:04 +00:00
Chris Lattner
ccfec9c7fd Method has been inlined into all callers 
llvm-svn: 13953
 2004-06-02 05:55:48 +00:00
Chris Lattner
5ad9eaab1a Convert to the new TargetMachine interface. 
llvm-svn: 13952
 2004-06-02 05:55:25 +00:00
Chris Lattner
4e2777cb30 Stubs are no longer needed 
llvm-svn: 13951
 2004-06-02 05:53:52 +00:00
Chris Lattner
5ce60a188d Adjust to new TM interfaces 
llvm-svn: 13949
 2004-06-02 05:47:26 +00:00
Brian Gaeke
8b022564d2 There is no "mcff" here; delete the confusing comments that refer to it. 
llvm-svn: 13911
 2004-05-30 08:29:16 +00:00
Brian Gaeke
18006c7075 Transform an occurrence of if(...) { assert (0) }. 
llvm-svn: 13908
 2004-05-30 07:34:01 +00:00
Brian Gaeke
f2f7cc0d50 Reduce the amount of LLVM Values for which we save reg. allocator 
state. Also, save the state for the incoming register of each phi
node.

llvm-svn: 13906
 2004-05-30 07:08:43 +00:00
Brian Gaeke
7f4ad50481 Rename verifySavedState to dumpSavedState. Give it a new comment. 
Call it at a more appropriate point.

llvm-svn: 13905
 2004-05-30 04:22:24 +00:00
Brian Gaeke
b4f49d8da5 Insert machine instructions generated for Phi nodes into their 
corresponding MachineCodeForInstruction vectors.

I need to be able to get the register allocated for the thing which is
called PhiCpRes in this code; this should make that task easier, plus,
Phi nodes are no longer "special" in the sense that their
MachineCodeForInstruction is empty.

llvm-svn: 13904
 2004-05-30 03:33:49 +00:00
Brian Gaeke
8daa49f754 Remove unused #include. 
llvm-svn: 13899
 2004-05-29 23:26:13 +00:00
Brian Gaeke
7d68f2e9b0 Add comments. 
llvm-svn: 13898
 2004-05-29 23:10:20 +00:00
Brian Gaeke
3913fdf0e9 Trim whitespace. 
llvm-svn: 13897
 2004-05-29 22:49:51 +00:00
Brian Gaeke
608e0b76e1 Give InsertCodeForPhis() a new documentation comment. 
llvm-svn: 13896
 2004-05-29 22:20:59 +00:00
Brian Gaeke
403be90321 Give PhiCp nodes better names in many cases. 
Simplify InsertPhiElimInstructions(), and give it a better doxygen comment.

llvm-svn: 13880
 2004-05-28 19:34:00 +00:00
Brian Gaeke
2bd005cb45 Make debugging output with -print-machineinstrs more useful: always print out 
the transformed LLVM code which is the input to the instruction selector.

llvm-svn: 13879
 2004-05-28 19:33:59 +00:00