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840 Commits

Author SHA1 Message Date
Chris Lattner
aee36bb527 Revamp the Register class, and allow the use of the RegisterGroup class to 
specify aliases directly in register definitions.

Patch contributed by Jason Eckhardt!

llvm-svn: 16330
 2004-09-14 04:17:02 +00:00
Misha Brukman
ec87a61944 Fix filename: Printer.cpp has become X86AsmPrinter.cpp 
llvm-svn: 16299
 2004-09-12 21:26:04 +00:00
Alkis Evlogimenos
4d2b0a2b5b Use a shorter form to express implicit use/defs in FpGETRESULT and 
FpSETRESULT.

llvm-svn: 16247
 2004-09-08 18:29:31 +00:00
Alkis Evlogimenos
3540de9ea6 A call instruction should implicitely define ST0 since the return 
value is returned in that register. The pseudo instructions
FpGETRESULT and FpSETRESULT shold also have an implicity use and def
of ST0 repsecitvely.

llvm-svn: 16246
 2004-09-08 16:54:54 +00:00
Reid Spencer
c4abcbefb1 Changes For Bug 352 
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137
 2004-09-01 22:55:40 +00:00
Reid Spencer
59cb27bcdc Reduce the number of arguments in the instruction builder and make some 
improvements on instruction selection that account for register and frame
index bases.

Patch contributed by Jeff Cohen. Thanks Jeff!

llvm-svn: 16110
 2004-08-30 00:13:26 +00:00
Chris Lattner
6781bb48eb Add -sse[,2,3] arguments to LLC 
llvm-svn: 16018
 2004-08-24 08:18:44 +00:00
Chris Lattner
28c7ae5697 Nuke commented out stuff 
llvm-svn: 16017
 2004-08-24 08:18:27 +00:00
Chris Lattner
64d3bc5e85 Switch from bytes to bits for alignment for consistency 
llvm-svn: 15974
 2004-08-21 20:14:13 +00:00
Chris Lattner
4427fd9a3c Reduce uses of getRegClass 
llvm-svn: 15973
 2004-08-21 20:13:52 +00:00
Chris Lattner
8c5096d223 Rename var 
llvm-svn: 15897
 2004-08-18 02:22:55 +00:00
Chris Lattner
d3d5c1d2a2 Start using alignment output routines from AsmPrinter. 
Changes to make this more similar to the ppc asmprinter

llvm-svn: 15890
 2004-08-17 19:25:42 +00:00
Chris Lattner
052cebe33c Use the AsmPrinter emitGlobalConstant. 
llvm-svn: 15872
 2004-08-17 06:48:55 +00:00
Chris Lattner
bf5dba50c5 Start using the AsmPrinter to emit our first class constants. This also 
drops our half-assed support for cygwin, which noone uses and doesn't work
anyway.

llvm-svn: 15839
 2004-08-16 23:16:06 +00:00
Chris Lattner
3383506bcc Disable the pattern isel 
llvm-svn: 15787
 2004-08-15 23:02:17 +00:00
Chris Lattner
555a585fd8 Code insertion methods now return void instead of an int. 
llvm-svn: 15780
 2004-08-15 22:15:11 +00:00
Chris Lattner
e58190f5f6 These methods no longer take a TargetRegisterClass* operand. 
llvm-svn: 15774
 2004-08-15 21:56:44 +00:00
Nate Begeman
fabece673b Eliminate MachineFunction& argument from eliminateFrameIndex in x86 Target. Get MachineFunction from MachineInstruction's parent's parent 
llvm-svn: 15739
 2004-08-14 22:05:10 +00:00
Chris Lattner
5e7e9b6c26 Remove a bunch of ad-hoc target-specific flags that were only used by the 
old asmprinter.

llvm-svn: 15660
 2004-08-11 07:12:04 +00:00
Chris Lattner
b09bc9d4e3 Remove a dead method 
llvm-svn: 15659
 2004-08-11 07:07:14 +00:00
Chris Lattner
3fc9d4490c Finally, the entire instruction asmprinter is now generated from tblgen, woo! 
llvm-svn: 15658
 2004-08-11 07:02:04 +00:00
Chris Lattner
3cef2f82ff Add asmprintergen support for the last X86 instruction that needs it: pcrelative calls. 
llvm-svn: 15657
 2004-08-11 06:59:12 +00:00
Chris Lattner
309873fed0 This file is long dead 
llvm-svn: 15656
 2004-08-11 06:55:12 +00:00
Chris Lattner
9c171be048 Scrunch memoperands, add a few more for floating point memops 
Eliminate the FPI*m classes, converting them to use FPI instead.

llvm-svn: 15655
 2004-08-11 06:50:10 +00:00
Chris Lattner
f34003128d Move hacks up 
llvm-svn: 15654
 2004-08-11 06:09:55 +00:00
Chris Lattner
b287047c3f Make FPI take asm string and operand list 
llvm-svn: 15653
 2004-08-11 05:54:16 +00:00
Chris Lattner
c304bf7e03 Nuke the Im*i* patterns, by asmprintergenifying all users. 
llvm-svn: 15652
 2004-08-11 05:31:07 +00:00
Chris Lattner
65ab459759 X86 instructions that read-modify-write memory are not LLVM two-address instructions. 
llvm-svn: 15651
 2004-08-11 05:07:25 +00:00
Chris Lattner
384711a69c Get rid of the Im8, Im16, Im32 classes, converting more instructions over to 
asmprintergeneration

llvm-svn: 15650
 2004-08-11 04:31:00 +00:00
Chris Lattner
24279a8ac8 Remove dead method 
llvm-svn: 15647
 2004-08-11 02:26:39 +00:00
Chris Lattner
b66b9cd4a9 Convert asmprinter to new style of instruction printer 
Start asmprintergen'ifying machine instrs with memory operands.

llvm-svn: 15646
 2004-08-11 02:25:00 +00:00
Chris Lattner
5cf0a20d4f This is purely a formatting patch that gets us closer to the mecca of fitting 
X86InstrInfo.td into 80 columns

llvm-svn: 15629
 2004-08-10 21:21:30 +00:00
Chris Lattner
f6c4de46e0 Drop the first argument of FPI, and asmprinterify fxch 
llvm-svn: 15628
 2004-08-10 21:02:13 +00:00
Chris Lattner
97abe28059 This purely mechanical patch gives the "I" tblgen class operand list and asm 
string operands, and adjusts all users to pass them in instead of using II.

llvm-svn: 15624
 2004-08-10 20:17:41 +00:00
Chris Lattner
332fa9be1c Convert Ii32 instructions over to use the asmprinter generator 
llvm-svn: 15621
 2004-08-10 19:06:36 +00:00
Chris Lattner
068209661a Convert the Ii16 instructions over 
llvm-svn: 15606
 2004-08-10 16:22:02 +00:00
Chris Lattner
315782f0ac Convert all Ii8 instructions over to the autogenerated asmprinter. 
llvm-svn: 15605
 2004-08-10 16:09:54 +00:00
Alkis Evlogimenos
f853362a44 Stop using getValues(). 
llvm-svn: 15487
 2004-08-04 08:44:43 +00:00
Chris Lattner
2677b71f64 Fix a warning 
llvm-svn: 15409
 2004-08-01 19:31:30 +00:00
Chris Lattner
df7c9d0339 Convert all I<> instructions to asmformat. 
Delete the 'name' field of all instructions that have asmformats.

llvm-svn: 15403
 2004-08-01 09:52:59 +00:00
Chris Lattner
90a4b737dd Eliminate 3 of the X86 printImplicit* flags. 
llvm-svn: 15398
 2004-08-01 08:23:17 +00:00
Chris Lattner
de4844f84d Get rid of 3 of the 4 'printimplicit' flags. Implicit operands are now 
explicitly listed in the asm string.

llvm-svn: 15397
 2004-08-01 08:22:29 +00:00
Chris Lattner
0c5ab21dcd Convert more instructions over to the asmprinter 
llvm-svn: 15396
 2004-08-01 08:13:11 +00:00
Chris Lattner
0a6fedb451 Handle registers a bit more efficiently 
llvm-svn: 15395
 2004-08-01 08:12:41 +00:00
Chris Lattner
c40aa40525 give FP stack registers names 
llvm-svn: 15394
 2004-08-01 08:12:13 +00:00
Chris Lattner
6c596faddb Switch more instructions over to using the asmprinter. Fix bugs in the emission 
of in/out instructions (missing %'s on registers).

llvm-svn: 15393
 2004-08-01 07:44:35 +00:00
Chris Lattner
3a928f8119 The tblgen'erated asmparser wants a way to print operands. 
llvm-svn: 15392
 2004-08-01 07:43:46 +00:00
Chris Lattner
e4c868ffa0 Rename the Printer class -> X86AsmPrinter. 
Include the tablegenerated assembly writer.

llvm-svn: 15389
 2004-08-01 06:02:08 +00:00
Chris Lattner
a02166d28b Factor a bunch of the rules and add support for generating the asmwriter. 
llvm-svn: 15388
 2004-08-01 06:01:32 +00:00
Chris Lattner
9a7b050ebb Specify an asm string and operands lists for a bunch of instructions. 
This only really covers no-operand instructions so far.

llvm-svn: 15387
 2004-08-01 06:01:00 +00:00
Chris Lattner
101dccd430 Completely disable the pattern isel until it is more substantial. 
llvm-svn: 15380
 2004-08-01 03:28:02 +00:00
Chris Lattner
9bce44c8cc Entirely eliminate all patterns and expanders from this file. We shall go 
with an incremental approach rather than a revolutionary approach.

llvm-svn: 15379
 2004-08-01 03:25:01 +00:00
Chris Lattner
0717ef353d Remove obsolete file 
llvm-svn: 15377
 2004-08-01 03:19:28 +00:00
Alkis Evlogimenos
cdcb1c62e5 Align breaks. 
llvm-svn: 15371
 2004-07-31 10:05:44 +00:00
Chris Lattner
0d66480e9e Add breaks 
llvm-svn: 15365
 2004-07-31 09:53:31 +00:00
Alkis Evlogimenos
1eb8a5dc09 Simplify code a bit. 
llvm-svn: 15364
 2004-07-31 09:44:32 +00:00
Alkis Evlogimenos
de150fb74b Correctly spell 'unconditional'. 
llvm-svn: 15363
 2004-07-31 09:41:44 +00:00
Alkis Evlogimenos
bc3d550391 Implement insertGoto and reverseBranchCondition for the X86. 
llvm-svn: 15362
 2004-07-31 09:38:47 +00:00
Chris Lattner
9a23ab1e63 Mark barrier instructions. Execution does not fall through uncond branches 
or return intructions.

llvm-svn: 15356
 2004-07-31 02:10:53 +00:00
Misha Brukman
3e7a88e9db Fix indentation: should be 2 spaces. 
llvm-svn: 15240
 2004-07-26 18:48:58 +00:00
Misha Brukman
61ff8a374f Fix file header as it has been renamed. 
llvm-svn: 15239
 2004-07-26 18:45:48 +00:00
Misha Brukman
ccd1114518 Renamed files to have the `X86' prefix for uniqueness purposes. 
All CVS history was renamed, the *,v were copied over.  No worries.

llvm-svn: 15238
 2004-07-26 18:43:11 +00:00
Chris Lattner
093d84c480 Remove some (LARGE) abandoned code for the release. If this is ever needed 
again in the future, it can be resurrected out of CVS

llvm-svn: 15112
 2004-07-22 21:30:35 +00:00
Chris Lattner
e3d3cd3e71 Fix cases where we generated horrible code like this: 
mov %EDI, 12
        add %EDI, %ECX
        mov %ECX, 12
        add %ECX, %EDX
        mov %EDX, 12
        add %EDX, %ESI

instead (really!) generate this:

        add %ECX, 12
        add %EDX, 12
        add %ESI, 12

llvm-svn: 15090
 2004-07-21 21:28:26 +00:00
Chris Lattner
e8b9b58454 While I'm at it, don't break codegen of mul by 3,5,9. 
llvm-svn: 15013
 2004-07-19 23:50:57 +00:00
Chris Lattner
f668465840 Generate better code for multiplies by negative constants like -4, -1, -9, etc. 
llvm-svn: 15012
 2004-07-19 23:47:21 +00:00
Reid Spencer
14243817ec bug 122: 
- Replace ConstantPointerRef usage with GlobalValue usage
- Minimize redundant isa<GlobalValue> usage
- Correct isa<Constant> for GlobalValue subclass

llvm-svn: 14950
 2004-07-18 00:38:32 +00:00
Chris Lattner
9bcf258cc3 Make sure to emit the immediate byte for instructions like: 
shrd [mem], reg, imm

This fixes the jit-ls failure on 186.crafty.

llvm-svn: 14914
 2004-07-17 20:26:14 +00:00
Chris Lattner
d7905d828b Reserve the correct amt of space. 
llvm-svn: 14913
 2004-07-17 20:24:05 +00:00
Chris Lattner
c4888ccda7 Patches towards fixing PR341 
llvm-svn: 14841
 2004-07-15 02:14:30 +00:00
Chris Lattner
210ffe4b77 Improve codegen for the LLVM offsetof/sizeof "operator". Before we compiled 
this LLVM function:

int %foo() {
        ret int cast (int** getelementptr (int** null, int 1) to int)
}

into:

foo:
        mov %EAX, 0
        lea %EAX, DWORD PTR [%EAX + 4]
        ret

now we compile it into:

foo:
        mov %EAX, 4
        ret

This sequence is frequently generated by the MSIL front-end, and soon the malloc lowering pass and
Java front-ends as well..

-Chris

llvm-svn: 14834
 2004-07-15 00:58:53 +00:00
Chris Lattner
6331eb6bbe Delete the allocate*TargetMachine function, which is now dead . 
The shared command line options are now in a header that makes sense.

llvm-svn: 14756
 2004-07-11 04:17:10 +00:00
Chris Lattner
b67e3b01bc Make these format a bit nicer 
llvm-svn: 14747
 2004-07-11 03:27:42 +00:00
Chris Lattner
2ada866a78 Auto-registrate target 
llvm-svn: 14745
 2004-07-11 02:48:49 +00:00
Reid Spencer
50ec3f9325 Add #include <iostream> since Value.h does not #include it any more. 
llvm-svn: 14622
 2004-07-04 12:19:56 +00:00
Chris Lattner
6da0499f4b Remove dead blocks 
llvm-svn: 14564
 2004-07-02 05:46:41 +00:00
Misha Brukman
9e015dddb8 Fix associativity of parameters to assert(): now it actually makes sense. 
llvm-svn: 14483
 2004-06-29 19:43:20 +00:00
Misha Brukman
b3e4179f42 Convert tabs to spaces. 
llvm-svn: 14482
 2004-06-29 19:28:53 +00:00
Chris Lattner
2abf0134d0 I believe that the code generator now properly handles dead basic blocks. If not, 
this is a bug, and should be fixed.

llvm-svn: 14476
 2004-06-29 07:17:12 +00:00
Chris Lattner
cd1a39bbec Fix a regression from r1.224. In particular, codegen a cast from double -> 
float as a truncation by going through memory.  This truncation was being
skipped, which caused 175.vpr to fail after aggressive register promotion.

llvm-svn: 14473
 2004-06-29 00:14:38 +00:00
Tanya Lattner
da38dc5180 Made a fix so that you can print out MachineInstrs that belong to a MachineBasicBlock that is not yet attached to a MachineFunction. This change includes changing the third operand (TargetMachine) to a pointer for the MachineInstr::print function. 
llvm-svn: 14389
 2004-06-25 00:13:11 +00:00
Misha Brukman
e38f7ed2cc Spell out `NoFramePointerElim' for readability. 
llvm-svn: 14299
 2004-06-21 21:17:44 +00:00
Misha Brukman
a2ac4e4345 Use the common `NoFPElim' setting instead of our own. 
llvm-svn: 14298
 2004-06-21 21:10:24 +00:00
Chris Lattner
cc465361d9 Move the IntrinsicLowering header into the CodeGen directory, as per PR346 
llvm-svn: 14266
 2004-06-20 07:49:54 +00:00
Chris Lattner
9e1bbe86ba Codegen sub C, X a little bit better for register pressure. Instead of 
mov REG, C
sub REG, X

generate:

neg X
add X, C

which uses one less reg

llvm-svn: 14213
 2004-06-18 00:50:37 +00:00
Chris Lattner
a5750b975a Fold setcc instructions into select and branches that are not in the same BB as 
the setcc.

llvm-svn: 14212
 2004-06-18 00:29:22 +00:00
Chris Lattner
f815117481 Do not fold loads into instructions if it is used more than once. In particular 
we do not want to fold the load in cases like this:

  X = load
    = add A, X
    = add B, X

llvm-svn: 14204
 2004-06-17 22:15:25 +00:00
Chris Lattner
0cd29ae2cd Rename Type::PrimitiveID to TypeId and ::getPrimitiveID() to ::getTypeID() 
llvm-svn: 14201
 2004-06-17 18:19:28 +00:00
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
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
Chris Lattner
1f0e0d55c4 Fix the fixed stack offset, patch contributed by Vladimir Prus 
llvm-svn: 14110
 2004-06-10 06:19:25 +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