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7241 Commits

Author SHA1 Message Date
Evan Cheng 5662b21db1 eliminateFrameIndex() change. 
llvm-svn: 36626
 2007-05-01 09:13:03 +00:00
Nate Begeman 27a625a74b llvm bug #1350, parts 1, 2, and 3. 
llvm-svn: 36618
 2007-05-01 05:57:02 +00:00
Evan Cheng 77c545e6b8 Under normal circumstances, when a frame pointer is not required, we reserve 
argument space for call sites in the function immediately on entry to the
current function. This eliminates the need for add/sub sp brackets around call
sites. However, this is not always a good idea. If the "call frame" is large and
the target load / store instructions have small immediate field to encode sp
offset, this can cause poor codegen. In the worst case, this can make it
impossible to scavenge a register if the reserved spill slot is pushed too far
apart from sp / fp.

llvm-svn: 36607
 2007-05-01 00:52:08 +00:00
Dale Johannesen 8dd36a51fc Remove item: thumb padding in constant islands 
llvm-svn: 36586
 2007-04-30 00:32:06 +00:00
Dale Johannesen 71577f3848 remove unused variable 
llvm-svn: 36585
 2007-04-30 00:30:48 +00:00
Lauro Ramos Venancio 2c673ad7ef Enable protected visibility on ARM. 
llvm-svn: 36583
 2007-04-30 00:23:51 +00:00
Dale Johannesen 4a00cf3fc4 Rewrite of Thumb constant islands handling (exact allowance for padding 
around islands and jump tables).

llvm-svn: 36573
 2007-04-29 19:19:30 +00:00
Dale Johannesen 1ee29dd026 Make ARM-specific version of getInlineAsmLength 
llvm-svn: 36572
 2007-04-29 19:17:45 +00:00
Anton Korobeynikov 39f3cffbe3 Implement protected visibility. This partly implements PR1363. Linker 
should be taught to deal with protected symbols.

llvm-svn: 36565
 2007-04-29 18:35:00 +00:00
Dale Johannesen 7e7280b538 change per review 
llvm-svn: 36519
 2007-04-28 00:36:37 +00:00
Dale Johannesen 29c05756b5 Prevent Thumb code from generating ARM instructions 
llvm-svn: 36518
 2007-04-27 22:17:18 +00:00
Lauro Ramos Venancio 99cb63029a add parenthesis. 
llvm-svn: 36514
 2007-04-27 20:10:08 +00:00
Evan Cheng 559c546453 Doh. ARM::LEApcrel is a single instruction MI. 
llvm-svn: 36513
 2007-04-27 18:27:13 +00:00
Lauro Ramos Venancio 62f65468bc In Thumb mode, the frame register must be R7. 
llvm-svn: 36512
 2007-04-27 17:58:03 +00:00
Lauro Ramos Venancio c39c12a3fa ARM TLS: implement "general dynamic", "initial exec" and "local exec" models. 
llvm-svn: 36506
 2007-04-27 13:54:47 +00:00
Evan Cheng c9f22fd1a4 Darwin runtime library does not have these. 
llvm-svn: 36505
 2007-04-27 08:15:43 +00:00
Evan Cheng d9990f061f Special handling of LEApcrel and tLEApcrel. 
llvm-svn: 36504
 2007-04-27 08:14:15 +00:00
Evan Cheng e54018687d Back out previous check-in. Incorrect. 
llvm-svn: 36503
 2007-04-27 07:50:02 +00:00
Evan Cheng 68ec63b3d7 tLEApcrel is a AddrModeTs, i.e. pc relative. 
llvm-svn: 36502
 2007-04-27 07:37:22 +00:00
Dan Gohman a30eabdd6e Fix PR1339 and CodeGen/X86/dollar-name.ll 
llvm-svn: 36495
 2007-04-26 21:07:05 +00:00
Bill Wendling c8264ca457 Have MMX registers clobbered in x86-64 too. 
llvm-svn: 36494
 2007-04-26 21:06:48 +00:00
Evan Cheng 910c80851e Rename findRegisterUseOperand to findRegisterUseOperandIdx to avoid confusion. 
llvm-svn: 36483
 2007-04-26 19:00:32 +00:00
Evan Cheng ce6e6db704 Fix for PR1348. If stack inc / dec amount is > 32-bits, issue a series of add / sub instructions. 
llvm-svn: 36456
 2007-04-26 01:09:28 +00:00
Evan Cheng 0ba174534c Match MachineFunction::UsedPhysRegs changes. 
llvm-svn: 36452
 2007-04-25 22:13:27 +00:00
Bill Wendling 157d7ee7e5 Add SSSE3 as a feature of Core2. Add MMX registers to the list of registers 
clobbered by a call.

llvm-svn: 36448
 2007-04-25 21:31:48 +00:00
Chris Lattner d20cd6658a do the multiplication as signed, so that 2*-2 == -4 instead of 4294967292 
when promoted to 64-bits

llvm-svn: 36442
 2007-04-25 17:23:53 +00:00
Lauro Ramos Venancio 4ae9425bb6 remember to emit weak reference in one more case. 
llvm-svn: 36438
 2007-04-25 14:50:40 +00:00
Anton Korobeynikov a97b694c82 Implement aliases. This fixes PR1017 and it's dependent bugs. CFE part 
will follow.

llvm-svn: 36435
 2007-04-25 14:27:10 +00:00
Evan Cheng 8cd224e81c Relex assertions to account for additional implicit def / use operands. 
llvm-svn: 36430
 2007-04-25 07:12:14 +00:00
Chris Lattner b975bebec1 support for >4G stack frames 
llvm-svn: 36425
 2007-04-25 04:30:24 +00:00
Chris Lattner 1ef35a2721 support >4G stack frames 
llvm-svn: 36423
 2007-04-25 04:25:10 +00:00
Chris Lattner cb35c61a4b Fix PR1351 and CodeGen/PowerPC/2007-04-24-InlineAsm-I-Modifier.ll 
llvm-svn: 36410
 2007-04-24 22:51:03 +00:00
Bill Wendling a784d875be Update. 
llvm-svn: 36407
 2007-04-24 21:20:03 +00:00
Bill Wendling b3b6c35beb Add the PADDQ to the list. 
llvm-svn: 36406
 2007-04-24 21:19:14 +00:00
Bill Wendling 5c7f25632e Add the final MMX instructions. Correct a few wrong patterns. 
llvm-svn: 36405
 2007-04-24 21:18:37 +00:00
Bill Wendling e2324ca17d Remove some invalid instructions from this check. 
llvm-svn: 36404
 2007-04-24 21:17:46 +00:00
Bill Wendling 591eab8844 Support for the special case of a vector with the canonical form: 
vector_shuffle v1, v2, <2, 6, 3, 7>

I.e.

         vector_shuffle v, undef, <2, 2, 3, 3>

MMX only has a shuffle for v4i16 vectors. It needs to use the unpackh for
this type of operation.

llvm-svn: 36403
 2007-04-24 21:16:55 +00:00
Dale Johannesen fdfb757682 Make Thumb funcs containing islands 4-byte aligned. Fix bugs maintaining 
BBOffsets and BBSizes when adjusting conditional branches.

llvm-svn: 36372
 2007-04-23 20:09:04 +00:00
Dale Johannesen ed0ecdb7ff add Align field, and use when generating function alignment 
llvm-svn: 36371
 2007-04-23 20:07:25 +00:00
Dale Johannesen 8eb9bff493 add isThumb (unused as yet) 
llvm-svn: 36370
 2007-04-23 20:04:35 +00:00
Dale Johannesen 0a1069d526 Fix generic getInlineAsmLength 
llvm-svn: 36369
 2007-04-23 20:00:17 +00:00
Lauro Ramos Venancio 6db679a49a X86 TLS: optimize the implementation of "local exec" model. 
llvm-svn: 36359
 2007-04-23 01:28:10 +00:00
Lauro Ramos Venancio efb8077ddd X86 TLS: fix and optimize the implementation of "initial exec" model. 
llvm-svn: 36355
 2007-04-22 22:50:52 +00:00
Christopher Lamb 297fcb0f73 Support alignment queries for degenerate (length 1) vectors. 
llvm-svn: 36352
 2007-04-22 21:54:13 +00:00
Lauro Ramos Venancio ee2d164f0f Implement PIC for arm-linux. 
llvm-svn: 36324
 2007-04-22 00:04:12 +00:00
Lauro Ramos Venancio 4e91908f17 X86 TLS: Implement review feedback. 
llvm-svn: 36318
 2007-04-21 20:56:26 +00:00
Jeff Cohen 5959f42498 Comment out usage of write() for now. 
llvm-svn: 36287
 2007-04-20 22:40:10 +00:00
Lauro Ramos Venancio 2518889872 Implement "general dynamic", "initial exec" and "local exec" TLS models for 
X86 32 bits.

llvm-svn: 36283
 2007-04-20 21:38:10 +00:00
Evan Cheng e656d093a5 Specify S registers as D registers' sub-registers. 
llvm-svn: 36280
 2007-04-20 21:20:10 +00:00
Evan Cheng 06a164c6bc Specify sub-register relations. e.g. RAX: [EAX], EAX: [AX], AX: [AL,AH]. 
llvm-svn: 36279
 2007-04-20 21:15:21 +00:00
Evan Cheng ac9fdde7f4 Add sub-registers sets. 
llvm-svn: 36278
 2007-04-20 21:13:46 +00:00
Chris Lattner 3d3f22766a add a crazy idea 
llvm-svn: 36273
 2007-04-20 20:18:43 +00:00
Jeff Cohen 6c673ac01c Make Microsoft assembler and linker happy. 
llvm-svn: 36265
 2007-04-20 00:33:54 +00:00
Chris Lattner 25e62eb63b Fix a message, patch by Christopher Lamb. 
llvm-svn: 36264
 2007-04-19 18:42:38 +00:00
Lauro Ramos Venancio 42cd7253b1 Fix a bug in getFrameRegister. 
Reported by Raul Herbster.

llvm-svn: 36262
 2007-04-19 14:09:38 +00:00
Dan Gohman 29845cd40d Fix the spelling of the prefetchnta instruction. 
llvm-svn: 36256
 2007-04-18 14:09:14 +00:00
Evan Cheng 5118226c6c Oops. Didn't mean to check in a quick hack. 
llvm-svn: 36227
 2007-04-17 23:33:39 +00:00
Chris Lattner 598bc0d9a3 dag combiner just got better at pruning bits. This fixes CodeGen/ARM/rev.ll 
llvm-svn: 36222
 2007-04-17 22:39:58 +00:00
Evan Cheng 2f45bf31c5 Change getAllocatableSet() so it returns allocatable registers for a specific register class. 
llvm-svn: 36215
 2007-04-17 20:23:34 +00:00
Anton Korobeynikov 9b91d98a30 Add comment 
llvm-svn: 36213
 2007-04-17 19:34:00 +00:00
Chris Lattner 2509d7547d add a note 
llvm-svn: 36203
 2007-04-17 18:03:00 +00:00
Chris Lattner ff0598de75 rename X86FunctionInfo to X86MachineFunctionInfo to match the header file 
it is defined in.

llvm-svn: 36196
 2007-04-17 17:21:52 +00:00
Anton Korobeynikov 8b7aab009e Implemented correct stack probing on mingw/cygwin for dynamic alloca's. 
Also, fixed static case in presence of eax livin. This fixes PR331

PS: Why don't we still have push/pop instructions? :)
llvm-svn: 36195
 2007-04-17 09:20:00 +00:00
Andrew Lenharth 2077814c91 Use this nifty Constraints thing and fix the inverted conditional moves 
llvm-svn: 36191
 2007-04-17 04:07:59 +00:00
Chris Lattner 62a8cbe594 SSE4 is apparently public now. 
llvm-svn: 36185
 2007-04-17 00:02:37 +00:00
Jeff Cohen 6f3a548ff4 In the event that some really old non-Intel or -AMD CPU is encountered... 
llvm-svn: 36177
 2007-04-16 21:59:44 +00:00
Jeff Cohen da17029218 Before assuming that the original code didn't work for Athlon64, the person who 
replaced it with a FIXME should have determined what did work.  Then he would have
realized that the code was in fact correct, and would have avoided breaking it.

llvm-svn: 36173
 2007-04-16 21:48:58 +00:00
Anton Korobeynikov fb80151c42 Removed tabs everywhere except autogenerated & external files. Add make 
target for tabs checking.

llvm-svn: 36146
 2007-04-16 18:10:23 +00:00
Reid Spencer 19c0217d99 For PR1336: 
Subtarget option names must be given in lower case in order to be
recognized. Fixes test/CodeGen/Alpha/ctlz.ll

llvm-svn: 36125
 2007-04-16 14:06:19 +00:00
Chris Lattner e275463e2f add a note 
llvm-svn: 36028
 2007-04-14 23:06:09 +00:00
Jeff Cohen b4c610fb89 Silence VC++ warning. 
llvm-svn: 35975
 2007-04-13 22:52:03 +00:00
Chris Lattner 502c3f48d9 arm has r+r*s and r+i addr modes, but no r+i+r*s addr modes. 
llvm-svn: 35962
 2007-04-13 06:50:55 +00:00
Reid Spencer 9945235b55 Implement review feedback .. don't double search a set. 
llvm-svn: 35957
 2007-04-12 21:57:15 +00:00
Reid Spencer 0ef2ca8da7 Provide support for intrinsics that lower themselves to a function body. 
This can happen for intrinsics that are overloaded.  In such cases it is
necessary to emit a function prototype before the body of the function
that calls the intrinsic and to ensure we don't emit it multiple times.

llvm-svn: 35954
 2007-04-12 21:00:45 +00:00
Lauro Ramos Venancio e6818b2549 Implement Thread Local Storage (TLS) in CBackend. 
llvm-svn: 35951
 2007-04-12 18:42:08 +00:00
Chris Lattner 2805bce656 Fix mmx paddq, add support for the 'y' register class, though it isn't tested. 
llvm-svn: 35940
 2007-04-12 04:14:49 +00:00
Chris Lattner a5fcd24746 Fix CodeGen/X86/2007-03-24-InlineAsmPModifier.ll 
llvm-svn: 35926
 2007-04-11 22:29:46 +00:00
Chris Lattner fe926e2960 Fix incorrect fall-throughs in addr mode code. This fixes CodeGen/ARM/arm-negative-stride.ll 
llvm-svn: 35909
 2007-04-11 16:17:12 +00:00
Chris Lattner a6aa0319f1 done 
llvm-svn: 35884
 2007-04-11 05:34:00 +00:00
Reid Spencer a472f66dd0 For PR1146: 
Put the parameter attributes in their own ParamAttr name space. Adjust the
rest of llvm as a result.

llvm-svn: 35877
 2007-04-11 02:44:20 +00:00
Bill Wendling f099841573 Add support for our first SSSE3 instruction "pmulhrsw". 
llvm-svn: 35869
 2007-04-10 22:10:25 +00:00
Chris Lattner d4a9b92a13 new micro optzn 
llvm-svn: 35867
 2007-04-10 21:14:01 +00:00
Chris Lattner 9b6d69e0c2 restore support for negative strides 
llvm-svn: 35859
 2007-04-10 03:48:29 +00:00
Chris Lattner d44e24c896 remove dead target hooks 
llvm-svn: 35846
 2007-04-09 23:33:39 +00:00
Chris Lattner 808ac93f68 remove some dead hooks 
llvm-svn: 35845
 2007-04-09 23:31:19 +00:00
Chris Lattner 39f65335d5 remove some dead target hooks, subsumed by isLegalAddressingMode 
llvm-svn: 35840
 2007-04-09 22:27:04 +00:00
Chris Lattner 19ccd6226c Fix a bug in PPCTargetLowering::isLegalAddressingMode, scales other than 0/1/2 
are always unsupported.

llvm-svn: 35835
 2007-04-09 22:10:05 +00:00
Jeff Cohen 4397363c16 When the number of elements is zero, don't malloc 32GB on 64-bit systems. 
Fixes unexpected failures on FreeBSD/amd64 of:
  CFrontend/2005-09-24-BitFieldCrash.c:
  CFrontend/2007-02-04-EmptyStruct.c:
  CFrontend/2007-03-26-ZeroWidthBitfield.c:
  CodeGen/Generic/2005-10-18-ZeroSizeStackObject.ll:

llvm-svn: 35828
 2007-04-09 19:26:30 +00:00
Reid Spencer 71b79e3d99 For PR1146: 
Adapt handling of parameter attributes to use the new ParamAttrsList class.

llvm-svn: 35814
 2007-04-09 06:17:21 +00:00
Chris Lattner 7451e4d6a1 move a bunch of register constraints from being handled by 
getRegClassForInlineAsmConstraint to being handled by
getRegForInlineAsmConstraint.  This allows us to let the llvm register allocator
allocate, which gives us better code.  For example, X86/2007-01-29-InlineAsm-ir.ll
used to compile to:

_run_init_process:
        subl $4, %esp
        movl %ebx, (%esp)
        xorl %ebx, %ebx
        movl $11, %eax
        movl %ebx, %ecx
        movl %ebx, %edx
        # InlineAsm Start
        push %ebx ; movl %ebx,%ebx ; int $0x80 ; pop %ebx
        # InlineAsm End

Now we get:
_run_init_process:
        xorl %ecx, %ecx
        movl $11, %eax
        movl %ecx, %edx
        # InlineAsm Start
        push %ebx ; movl %ecx,%ebx ; int $0x80 ; pop %ebx
        # InlineAsm End

llvm-svn: 35804
 2007-04-09 05:49:22 +00:00
Chris Lattner 2b6b4eb471 implement support for CodeGen/X86/inline-asm-x-scalar.ll:test3 - i32/i64 values 
used with x constraints.

llvm-svn: 35803
 2007-04-09 05:31:48 +00:00
Chris Lattner 590ed5e5b7 implement CodeGen/X86/inline-asm-x-scalar.ll 
llvm-svn: 35799
 2007-04-09 05:11:28 +00:00
Reid Spencer e9f516384d Squelch a warning about mismatch between sign of constant and sign of return 
type.

llvm-svn: 35674
 2007-04-04 22:07:24 +00:00
Evan Cheng 1e150dedd1 Implement inline asm modifier P. 
llvm-svn: 35640
 2007-04-04 00:13:29 +00:00
Evan Cheng bd31f41daa Typo. 
llvm-svn: 35639
 2007-04-04 00:06:07 +00:00
Bill Wendling ac5b650a54 Adding more MMX instructions. 
llvm-svn: 35638
 2007-04-03 23:48:32 +00:00
Chris Lattner f79fb5cad0 make a new missing features section 
llvm-svn: 35637
 2007-04-03 23:41:34 +00:00
Evan Cheng 3c68d4e8ba Remove unused constant pool entries. 
llvm-svn: 35635
 2007-04-03 23:39:48 +00:00
Bill Wendling 2640b4a4ab Updated 
llvm-svn: 35634
 2007-04-03 23:37:20 +00:00
Evan Cheng 39d8b4db92 Fixed a bug that causes codegen of noop like add r0, r0, #0. 
llvm-svn: 35627
 2007-04-03 21:31:21 +00:00
Nicolas Geoffray 23710a7da3 Starting implementation of the ELF32 ABI specification of varargs handling. 
LowerVASTART emits the right code if the subtarget is ELF32, the other intrinsics
(VAARG, VACOPY and VAEND) are not yet implemented.

llvm-svn: 35625
 2007-04-03 13:59:52 +00:00
Nicolas Geoffray b3e99a18ee The PPC64 ELF ABI is "intended to use the same structure layout and calling convention rules 
as the 64-bit PowerOpen ABI" (Reference http://www.linux-foundation.org/spec/ELF/ppc64/).
Change all ELF tests to ELF32.

llvm-svn: 35624
 2007-04-03 12:35:28 +00:00
Nicolas Geoffray ab559f6e3c Addition to the previous commit for getCalleeSavedRegClasses: 
"The ELF ABI specifies F1-F8 registers as argument registers for double, not
F1-F10. This affects only ELF, not MachO."

llvm-svn: 35623
 2007-04-03 10:57:49 +00:00
Nicolas Geoffray fbfc451ba9 The ELF ABI specifies F1-F8 registers as argument registers for double, not 
F1-F10. This affects only ELF, not MachO.

llvm-svn: 35622
 2007-04-03 10:27:07 +00:00
Evan Cheng e8315fe3f5 Inverted logic. 
llvm-svn: 35619
 2007-04-03 06:44:25 +00:00
Bill Wendling 652c7b2d73 Changed to new MMX_ recipes. 
llvm-svn: 35617
 2007-04-03 06:18:31 +00:00
Bill Wendling e7b2a864f2 Add FEMMS and ADDQ. Renamed MMX recipes to prepend the MMX_ to them. 
llvm-svn: 35616
 2007-04-03 06:00:37 +00:00
Chris Lattner f742e2fe70 Arm supports negative strides as well, add them. This lets us compile: 
CodeGen/ARM/arm-negative-stride.ll to:

LBB1_2: @bb
        str r1, [r3, -r0, lsl #2]
        add r0, r0, #1
        cmp r0, r2
        bne LBB1_2      @bb

llvm-svn: 35609
 2007-04-03 00:13:57 +00:00
Dale Johannesen d13786dd82 fix off by 1 error in displacement computation 
llvm-svn: 35602
 2007-04-02 20:31:06 +00:00
Chris Lattner 8e168a4f36 fix the CodeGen/ARM/2007-03-13-InstrSched.ll regression: allow IV's with scales 
to be folded into non-store instructions.

llvm-svn: 35601
 2007-04-02 18:51:18 +00:00
Chris Lattner 6223e83f6d add support for the 'w' inline asm register class. 
llvm-svn: 35598
 2007-04-02 17:24:08 +00:00
Chris Lattner 3e21eb7fd7 Fix a bug which caused us to never be able to use signed comparisons for 
equality comparisons of a constant.  This allows us to codegen the 'sintzero'
loop in PR1288 as:

LBB1_1: ;cond_next
        li r4, 0
        addi r2, r2, 1
        stw r4, 0(r3)
        addi r3, r3, 4
        cmpwi cr0, r2, -1
        bne cr0, LBB1_1 ;cond_next

instead of:

LBB1_1: ;cond_next
        addi r2, r2, 1
        li r4, 0
        xoris r5, r2, 65535
        stw r4, 0(r3)
        addi r3, r3, 4
        cmplwi cr0, r5, 65535
        bne cr0, LBB1_1 ;cond_next

This implements CodeGen/PowerPC/compare-simm.ll, and also cuts 74
instructions out of kc++.

llvm-svn: 35590
 2007-04-02 05:59:42 +00:00
Lauro Ramos Venancio 6be85337b0 - Divides the comparisons in two types: comparisons that only use N and Z 
flags (ARMISD::CMPNZ) and comparisons that use all flags (ARMISD::CMP).
- Defines the instructions: TST, TEQ (ARM) and TST (Thumb).

llvm-svn: 35573
 2007-04-02 01:30:03 +00:00
Chris Lattner 59a6fa7af6 fix breakage from last night, simplify code. 
llvm-svn: 35560
 2007-04-01 20:49:36 +00:00
Evan Cheng 17d48a8bc2 Add i16 address mode. 
llvm-svn: 35551
 2007-04-01 08:06:46 +00:00
Andrew Lenharth 427ec7fa51 Readme 
llvm-svn: 35533
 2007-03-31 15:05:44 +00:00
Anton Korobeynikov a8cc1ebae1 Consistency with native compilers 
llvm-svn: 35532
 2007-03-31 13:11:52 +00:00
Bill Wendling b72fcddd23 Fix comment. 
llvm-svn: 35531
 2007-03-31 09:36:12 +00:00
Chris Lattner 075b4db621 add a note 
llvm-svn: 35530
 2007-03-31 07:06:25 +00:00
Bill Wendling afddb2c6f8 Match GCC's MMX calling convention. 
llvm-svn: 35523
 2007-03-31 01:03:53 +00:00
Chris Lattner 1eb94d973a implement the new addressing mode description hook. 
llvm-svn: 35521
 2007-03-30 23:15:24 +00:00
Bill Wendling 2fbcbc16b4 Add MMX calling conventions. 
llvm-svn: 35489
 2007-03-30 00:35:22 +00:00
Evan Cheng 045414aa8e New entry. 
llvm-svn: 35480
 2007-03-29 21:40:13 +00:00
Evan Cheng cc44b1e743 Can't re-materialize mov r, imm in thumb since mov would clobber the condition code. 
llvm-svn: 35479
 2007-03-29 21:38:31 +00:00
Jeff Cohen 68e93b7c44 MS C does have inlining after all, just uses _inline instead of inline. 
llvm-svn: 35467
 2007-03-29 17:42:21 +00:00
Evan Cheng 8f592160c0 Add support for hidden visibility to darwin/arm. 
llvm-svn: 35448
 2007-03-29 07:49:34 +00:00
Jeff Cohen cc560c93eb Fix C Backend to generate code that works with Microsoft C for the benefit of 
front ends that do not depend on the GCC runtime (someday...).

llvm-svn: 35441
 2007-03-28 23:08:37 +00:00
Bill Wendling 4ad38abd40 Made this into a bug report: PR1286 
llvm-svn: 35439
 2007-03-28 19:07:34 +00:00
Anton Korobeynikov 0ad22563b8 Oops :) 
llvm-svn: 35438
 2007-03-28 18:38:33 +00:00
Anton Korobeynikov 7522c9d8e1 Don't allow MatchAddress recurse too much. This trims exponential 
behaviour in some cases.

llvm-svn: 35437
 2007-03-28 18:36:33 +00:00
Chris Lattner 2ba38c8711 add a note 
llvm-svn: 35435
 2007-03-28 18:17:19 +00:00
Chris Lattner bcd38852f2 Compile CodeGen/X86/lea-3.ll:test2 to: 
_test3:
        leaq (,%rdi,4), %rax
        orq %rdi, %rax
        ret

instead of:
_test2:
        movq %rdi, %rax
        shlq $2, %rax
        orq %rdi, %rax
        ret

llvm-svn: 35434
 2007-03-28 18:12:31 +00:00
Chris Lattner a6527d6a61 Dan pointed out that this is done, remove it! 
llvm-svn: 35430
 2007-03-28 17:26:52 +00:00
Scott Michel 734077b1f0 First test check-in. 
llvm-svn: 35429
 2007-03-28 17:04:43 +00:00
Evan Cheng c2cba18f2b Remove isLegalAddressImmediate. 
llvm-svn: 35406
 2007-03-28 01:53:55 +00:00
Bill Wendling 2338e21b2b Remove cruft I put in there... 
llvm-svn: 35394
 2007-03-28 01:02:54 +00:00
Chris Lattner c56e4920d2 Fix a problem building llvm-gcc on amd64-unknown-freebsd6.2, due to the 
system assembler not groking legal instructions like "leal (,%esi,8), %ecx".

llvm-svn: 35393
 2007-03-28 00:58:40 +00:00
Bill Wendling ad2db4a4cf Unbreak mmx arithmetic. It was barfing trying to do v8i8 arithmetic. 
llvm-svn: 35392
 2007-03-28 00:57:11 +00:00
Bill Wendling 999c77f89c Add the "unpack low packed data" instructions. This should be the last of 
the MMX instructions that are needed...

llvm-svn: 35389
 2007-03-27 21:20:36 +00:00
Bill Wendling 6dff51ae65 Fix so that pandn is emitted instead of an xor/and combo. Add integer 
comparison operators.

llvm-svn: 35385
 2007-03-27 20:22:40 +00:00
Lauro Ramos Venancio 682baf2dda "The C standards do say that "char" may either be a "signed char" or "unsigned 
char" and it is up to the compilers implementation or the platform which is
followed."
http://www.arm.linux.org.uk/docs/faqs/signedchar.php

llvm-svn: 35382
 2007-03-27 16:33:08 +00:00
Lauro Ramos Venancio 143b0dff31 bugfix: sometimes the spiller puts a load between the "mov lr, pc" and "bx" of a CALL_NOLINK. 
llvm-svn: 35381
 2007-03-27 16:19:21 +00:00
Evan Cheng 7dbbd00b06 findRegisterUseOperand() changed. 
llvm-svn: 35366
 2007-03-26 22:41:48 +00:00
Bill Wendling 158f6092a2 Promote to v1i64 type... 
llvm-svn: 35353
 2007-03-26 08:03:33 +00:00
Bill Wendling 48a24419bf Updated. 
llvm-svn: 35352
 2007-03-26 07:55:58 +00:00
Bill Wendling 98d2104c6f Add support for the v1i64 type. This makes better code for this: 
#include <mmintrin.h>

extern __m64 C;

void baz(__v2si *A, __v2si *B)
{
  *A = C;
  _mm_empty();
}

We get this:

_baz:
        call "L1$pb"
"L1$pb":
        popl %eax
        movl L_C$non_lazy_ptr-"L1$pb"(%eax), %eax
        movq (%eax), %mm0
        movl 4(%esp), %eax
        movq %mm0, (%eax)
        emms
        ret

GCC gives us this:

_baz:
        pushl   %ebx
        call    L3
"L00000000001$pb":
L3:
        popl    %ebx
        subl    $8, %esp
        movl    L_C$non_lazy_ptr-"L00000000001$pb"(%ebx), %eax
        movl    (%eax), %edx
        movl    4(%eax), %ecx
        movl    16(%esp), %eax
        movl    %edx, (%eax)
        movl    %ecx, 4(%eax)
        emms
        addl    $8, %esp
        popl    %ebx
        ret

llvm-svn: 35351
 2007-03-26 07:53:08 +00:00
Anton Korobeynikov e8ac2fce97 Fix authorship 
llvm-svn: 35337
 2007-03-25 13:44:26 +00:00
Chris Lattner 26ad3e7191 add a note 
llvm-svn: 35334
 2007-03-25 05:10:46 +00:00
Chris Lattner 9c9e2f1af2 add a note 
llvm-svn: 35330
 2007-03-25 04:46:28 +00:00
Chris Lattner 8810241ebc Fix CodeGen/PowerPC/2007-03-24-cntlzd.ll 
llvm-svn: 35329
 2007-03-25 04:44:03 +00:00
Chris Lattner d685514e2e switch TargetLowering::getConstraintType to take the entire constraint, 
not just the first letter.  No functionality change.

llvm-svn: 35322
 2007-03-25 02:14:49 +00:00
Chris Lattner 927f30da08 Allow the b/h/w/k constraints to be applied to values that have multiple alternatives, and end up not being registers. 
llvm-svn: 35320
 2007-03-25 02:01:03 +00:00
Chris Lattner 03a643aa69 enforce the proper range for the i386 N constraint. 
llvm-svn: 35319
 2007-03-25 01:57:35 +00:00
Chris Lattner c8ddca703d Fix test/CodeGen/X86/2007-03-24-InlineAsmPModifier.ll 
llvm-svn: 35318
 2007-03-25 01:44:57 +00:00
Chris Lattner 43cab75914 add a bad case evan though of. 
llvm-svn: 35296
 2007-03-24 06:01:32 +00:00
Anton Korobeynikov 8aae2d7e1c Autodetect MMX & SSE stuff for AMD processors 
llvm-svn: 35292
 2007-03-23 23:46:48 +00:00
Bill Wendling 871c77cda1 PR1260: 
Add final support to get the QT example to compile.

llvm-svn: 35290
 2007-03-23 22:35:46 +00:00
Bill Wendling 7c17fbc5b7 We generate a shufflevector instruction, so we don't need the builtin 
intrinsic.

llvm-svn: 35269
 2007-03-22 20:29:26 +00:00
Bill Wendling d551a18783 Support added for shifts and unpacking MMX instructions. 
llvm-svn: 35266
 2007-03-22 18:42:45 +00:00
Dale Johannesen 0c6bb5eab7 repair x86 performance, dejagnu problems from previous change 
llvm-svn: 35245
 2007-03-21 21:51:52 +00:00
Anton Korobeynikov 4ad4bcdc2d Add TODO list for MSIL backend 
llvm-svn: 35244
 2007-03-21 21:48:59 +00:00
Anton Korobeynikov aa3090d815 Let the new backend begin! 
llvm-svn: 35242
 2007-03-21 21:38:25 +00:00
Dale Johannesen a827d03154 add generation of unnecessary push/pop around calls 
llvm-svn: 35241
 2007-03-21 21:16:39 +00:00
Nicolas Geoffray 4ea5217880 Protect R31's frame offset from being used by callee-saved registers, when R31 
is the frame pointer.

llvm-svn: 35233
 2007-03-21 16:44:14 +00:00
Evan Cheng 61eee86487 Mark re-materializable instructions. 
llvm-svn: 35230
 2007-03-21 00:16:56 +00:00
Evan Cheng cba9538499 Updated. 
llvm-svn: 35229
 2007-03-20 22:32:39 +00:00
Dale Johannesen bacf4acf65 do not share old induction variables when this would result in invalid 
instructions (that would have to be split later)

llvm-svn: 35227
 2007-03-20 21:54:54 +00:00
Lauro Ramos Venancio a88c4a74f3 bugfix: When the source register of CALL_NOLINK was LR, the following code was emitted: 
mov lr, pc
    bx lr
So, the function was not called.

llvm-svn: 35218
 2007-03-20 17:57:23 +00:00
Evan Cheng 9e7b838469 Make two piece constant generation as a single instruction. It's re-materialized as a load from constantpool. 
llvm-svn: 35207
 2007-03-20 08:11:30 +00:00
Evan Cheng 39eb62ea3b New entry. 
llvm-svn: 35206
 2007-03-20 08:10:17 +00:00
Evan Cheng 61f39d186c Added MRegisterInfo hook to re-materialize an instruction. 
llvm-svn: 35205
 2007-03-20 08:09:38 +00:00
Chris Lattner 3e1d917e80 Two changes: 
1) codegen a shift of a register as a shift, not an LEA.
2) teach the RA to convert a shift to an LEA instruction if it wants something
   in three-address form.

This gives us asm diffs like:

-       leal (,%eax,4), %eax
+       shll $2, %eax

which is faster on some processors and smaller on all of them.

and, more interestingly:

-       movl 24(%esi), %eax
-       leal (,%eax,4), %edi
+       movl 24(%esi), %edi
+       shll $2, %edi

Without #2, #1 was a significant pessimization in some cases.

This implements CodeGen/X86/shift-codegen.ll

llvm-svn: 35204
 2007-03-20 06:08:29 +00:00
Chris Lattner f806e1cdbc fix indentation 
llvm-svn: 35202
 2007-03-20 02:25:53 +00:00
Dale Johannesen 8447d34903 fix obvious comment bug 
llvm-svn: 35196
 2007-03-20 00:30:56 +00:00
Evan Cheng 9bb01c9f4f Fix naming inconsistencies. 
llvm-svn: 35163
 2007-03-19 07:48:02 +00:00
Evan Cheng ee2763f76f Special LDR instructions to load from non-pc-relative constantpools. These are 
rematerializable. Only used for constant generation for now.

llvm-svn: 35162
 2007-03-19 07:20:03 +00:00
Evan Cheng 5be3e09a30 Constant generation instructions are re-materializable. 
llvm-svn: 35161
 2007-03-19 07:09:02 +00:00
Evan Cheng 461c964d3d Added isReMaterializable. 
llvm-svn: 35160
 2007-03-19 06:22:07 +00:00
Chris Lattner f01f87bc63 fix a warning 
llvm-svn: 35152
 2007-03-19 00:39:32 +00:00
Chris Lattner 9b3e2b4ad9 minor updates 
llvm-svn: 35143
 2007-03-18 22:41:33 +00:00
Nick Lewycky f764441977 This is implemented. We now generate: 
entry:
        icmp ugt i32 %x, 4              ; <i1>:0 [#uses=1]
        br i1 %0, label %cond_true, label %cond_false

cond_true:              ; preds = %entry
        %tmp1 = tail call i32 (...)* @bar( i32 12 )             ; <i32> [#uses=0]
        ret void

cond_false:             ; preds = %entry
        switch i32 %x, label %cond_true15 [
                 i32 4, label %cond_true3
                 i32 3, label %cond_true7
                 i32 2, label %cond_true11
                 i32 0, label %cond_false17
        ]

...

llvm-svn: 35142
 2007-03-18 14:37:20 +00:00
Devang Patel b38c2ec89c Support 'I' inline asm constraint. 
llvm-svn: 35129
 2007-03-17 00:13:28 +00:00
Lauro Ramos Venancio 25d4052af6 Only ARMv6 has BSWAP. 
Fix MultiSource/Applications/aha test.

llvm-svn: 35128
 2007-03-16 22:54:16 +00:00
Bill Wendling 144b8bbf17 And now support for MMX logical operations. 
llvm-svn: 35125
 2007-03-16 09:44:46 +00:00
Evan Cheng 0e34d6af6b Added isLegalAddressExpression(). Only allows X +/- C for now. 
llvm-svn: 35122
 2007-03-16 08:43:56 +00:00
Bill Wendling e31034125c Multiplication support for MMX. 
llvm-svn: 35118
 2007-03-15 21:24:36 +00:00
Evan Cheng a1779b9739 Under X86-64 large code model, do not emit 32-bit pc relative calls. 
llvm-svn: 35108
 2007-03-14 22:11:11 +00:00
Evan Cheng 71face25ef Notes about codegen issues. 
llvm-svn: 35107
 2007-03-14 21:03:53 +00:00
Evan Cheng e278f30a52 Clean up. 
llvm-svn: 35105
 2007-03-14 20:20:19 +00:00
Evan Cheng eb76f7c6fd Oops. 
llvm-svn: 35104
 2007-03-14 19:44:58 +00:00
Evan Cheng dda4c32db3 X86-64 JIT is in large code model. Need stubs for direct calls. 
llvm-svn: 35097
 2007-03-14 10:51:55 +00:00
Evan Cheng 386dfc9251 x86-64 JIT stub codegen. 
llvm-svn: 35096
 2007-03-14 10:48:08 +00:00
Evan Cheng e1a95206e3 Preliminary support for X86-64 JIT stub codegen. 
llvm-svn: 35095
 2007-03-14 10:44:30 +00:00
Evan Cheng 72a8bcf238 AM2 can match 2^n +/- 1. e.g. ldr r3, [r2, r2, lsl #2] 
llvm-svn: 35088
 2007-03-13 21:05:54 +00:00
Evan Cheng 507eefa757 Zero is always a legal AM immediate. 
llvm-svn: 35087
 2007-03-13 20:37:59 +00:00
Nicolas Geoffray 7aad92868c Stack and register alignment of call arguments in the ELF ABI 
llvm-svn: 35083
 2007-03-13 15:02:46 +00:00
Evan Cheng 818242bbaf Implement getTargetLowering() or else LSR won't be using ARM specific hooks. 
llvm-svn: 35077
 2007-03-13 01:20:42 +00:00
Evan Cheng 2150b9286f Updated TargetLowering LSR addressing mode hooks for ARM and Thumb. 
llvm-svn: 35075
 2007-03-12 23:30:29 +00:00
Evan Cheng b9dce9db85 More flexible TargetLowering LSR hooks for testing whether an immediate is a legal target address immediate or scale. 
llvm-svn: 35074
 2007-03-12 23:29:01 +00:00
Evan Cheng 3ab7ea7965 More flexible TargetLowering LSR hooks for testing whether an immediate is 
a legal target address immediate or scale.

llvm-svn: 35073
 2007-03-12 23:28:50 +00:00
Evan Cheng 57f261b13a Stupid bug: SSE2 supports v2i64 add / sub. 
llvm-svn: 35070
 2007-03-12 22:58:52 +00:00
Bill Wendling e9b81f5366 Adding more arithmetic operators to MMX. This is an almost exact copy of 
the addition. Please let me know if you have suggestions.

llvm-svn: 35055
 2007-03-10 09:57:05 +00:00
Evan Cheng 09663aeac7 Minor stuff. 
llvm-svn: 35049
 2007-03-09 19:46:06 +00:00
Evan Cheng 31ef0ab7cf Add comments about LSR / ARM. 
llvm-svn: 35048
 2007-03-09 19:35:33 +00:00
Evan Cheng 603f3094eb Unfinished work and ideas related to register scavenger. 
llvm-svn: 35047
 2007-03-09 19:34:51 +00:00
Dale Johannesen 368faf9acd apply comments from review of last patch 
llvm-svn: 35045
 2007-03-09 19:18:59 +00:00
Dale Johannesen af0cff2671 Add some observations from CoreGraphics benchmark. Remove register 
scavenging todo item, since it is now implemented.

llvm-svn: 35044
 2007-03-09 17:58:17 +00:00
Evan Cheng ea28fc5dc4 Implement inline asm modifier c. 
llvm-svn: 35035
 2007-03-08 22:42:46 +00:00
Bill Wendling 6092ce25cf Added "padd*" support for MMX. Added MMX move stuff to X86InstrInfo so that 
moves, loads, etc. are recognized.

llvm-svn: 35031
 2007-03-08 22:09:11 +00:00
Evan Cheng 63170b6959 Fix a typo. 
llvm-svn: 35030
 2007-03-08 21:59:30 +00:00
Evan Cheng ddf082082c Putting more constants which do not contain relocations into .literal{4|8|16} 
llvm-svn: 35026
 2007-03-08 08:31:54 +00:00
Evan Cheng e94a2f8026 Change register allocation order to Dale's suggestion. 
llvm-svn: 35021
 2007-03-08 02:56:40 +00:00
Evan Cheng 977195e912 Bug fix. Not advancing the register scavenger iterator correctly. 
llvm-svn: 35020
 2007-03-08 02:55:08 +00:00
Evan Cheng d918477ac3 For Darwin, put constant data into .const, .const_data, .literal{4|8|16} 
sections.

llvm-svn: 35017
 2007-03-08 01:25:25 +00:00
Evan Cheng 13a1d96963 Put constant data to .const, .const_data, .literal{4|8|16} sections. 
llvm-svn: 35016
 2007-03-08 01:07:07 +00:00
Evan Cheng 58aeb9c444 Add ReadOnlySection directive. 
llvm-svn: 35015
 2007-03-08 01:00:38 +00:00
Evan Cheng f030f2d628 Only safe to use a call-clobbered or spilled callee-saved register as scratch register. 
llvm-svn: 35010
 2007-03-07 20:30:36 +00:00
Bill Wendling 6d8211c0ac Remove useless pattern fragments. 
llvm-svn: 35009
 2007-03-07 18:23:09 +00:00
Anton Korobeynikov ed4b303c10 Refactoring of formal parameter flags. Enable properly use of 
zext/sext/aext stuff.

llvm-svn: 35008
 2007-03-07 16:25:09 +00:00
Bill Wendling 97905b4027 Properly support v8i8 and v4i16 types. It now converts them to v2i32 for 
load and stores.

llvm-svn: 35002
 2007-03-07 05:43:18 +00:00
Anton Korobeynikov 942fda027f Fix DWARF debugging information on x86/Linux and (hopefully) 
Mingw32/Cygwin targets. This fixes PR978

llvm-svn: 35000
 2007-03-07 02:47:57 +00:00
Evan Cheng 17cdad0687 ARM always use register scavenger. No longer reserves R12. 
llvm-svn: 34999
 2007-03-07 02:46:23 +00:00
Evan Cheng 2818fdd019 Fix some brittle code. Watch out for cases where register scavenger is pointing to deleted instructions. 
llvm-svn: 34998
 2007-03-07 02:38:05 +00:00
Evan Cheng 67038e7a8b Fix one more Thumb eliminateFrameIndex bug. 
llvm-svn: 34990
 2007-03-07 00:12:18 +00:00
Evan Cheng 5ed781b0db Register scavenging is now on by default for ARM. 
llvm-svn: 34987
 2007-03-06 22:02:53 +00:00
Evan Cheng 41bc2fd242 Make load / store optimizer use register scavenger. 
llvm-svn: 34986
 2007-03-06 21:59:20 +00:00
Bill Wendling bbd25984b7 Add LOAD/STORE support for MMX. 
llvm-svn: 34978
 2007-03-06 18:53:42 +00:00
Evan Cheng d28de6700b Code clean up. Prepare to use register scavenger. 
llvm-svn: 34976
 2007-03-06 18:02:41 +00:00
Evan Cheng 8b8cac289b Minor interface change. 
llvm-svn: 34967
 2007-03-06 10:05:14 +00:00
Evan Cheng 4783ae8ac1 Scavenge a register using the register scavenger when needed. 
llvm-svn: 34966
 2007-03-06 10:03:56 +00:00
Anton Korobeynikov e7ec3bc7bc Use new SDIselParamAttr enumeration. This removes "magick" constants 
from formal attributes' flags processing.

llvm-svn: 34963
 2007-03-06 08:12:33 +00:00
Chris Lattner 4f2e4e0f92 Switch PPC return lower to use an autogenerated CC description. 
llvm-svn: 34940
 2007-03-06 00:59:59 +00:00
Bill Wendling b1c86b49ea Add the emms intrinsic for MMX support. 
llvm-svn: 34938
 2007-03-05 23:09:45 +00:00
Lauro Ramos Venancio f10769dda7 Use init_array/fini_array sections for static contructors/destructors when the ABI is AAPCS. 
Fix SingleSource/Regression/C/ConstructorDestructorAttributes test on arm-linux-gnueabi.

llvm-svn: 34931
 2007-03-05 17:59:58 +00:00
Jeff Cohen b622c11f77 Unbreak VC++ build. 
llvm-svn: 34917
 2007-03-05 00:00:42 +00:00
Chris Lattner d647f92a14 add missing braces 
llvm-svn: 34905
 2007-03-04 06:13:52 +00:00
Reid Spencer 1f87660d29 Make sure that when we store a value it is masked to its correct bit 
width. This helps CBE work with non-standard integer bit widths.

llvm-svn: 34885
 2007-03-03 16:33:33 +00:00
Nick Lewycky e6049c2f08 Emit low/high immediate loads properly for Linux/PPC. 
llvm-svn: 34871
 2007-03-03 05:29:51 +00:00
Evan Cheng deaea25eb9 X86-64 VACOPY needs custom expansion. va_list is a struct { i32, i32, i8*, i8* }. 
llvm-svn: 34857
 2007-03-02 23:16:35 +00:00
Anton Korobeynikov 57af2a4f3b Simplify things 
llvm-svn: 34849
 2007-03-02 21:50:27 +00:00
Chris Lattner 9c7e5e365d argument lowering should copy from the vreg shadows of live-in arguments 
passed in registers, not directly from the pregs themselves.

llvm-svn: 34838
 2007-03-02 05:12:29 +00:00
Chris Lattner fc2f52128a add a note 
llvm-svn: 34837
 2007-03-02 05:04:52 +00:00
Dale Johannesen 32bc81341b eliminate unnecessary reset of SP in epilog on darwin 
llvm-svn: 34824
 2007-03-02 01:17:17 +00:00
Reid Spencer df30e2a68b Wrap a long line. 
llvm-svn: 34799
 2007-03-01 19:48:16 +00:00
Anton Korobeynikov af8be4458f Ensure that fastcall'ed function is correctly mangled & stack is 
properly aligned

llvm-svn: 34788
 2007-03-01 16:29:22 +00:00
Nicolas Geoffray 75ab9799df Implemented the frameaddress intrinsic for PPC. 
llvm-svn: 34787
 2007-03-01 13:11:38 +00:00
Evan Cheng 2c0fd3ee4c Use a spilled free callee-saved register as scratch register. 
llvm-svn: 34785
 2007-03-01 08:57:52 +00:00
Evan Cheng 6f059e3e0a - Track which callee-saved registers are spilled. 
- Some code clean up.

llvm-svn: 34783
 2007-03-01 08:26:31 +00:00
Evan Cheng 677bb3b460 Switch from std::vector<bool> to BitVector. 
llvm-svn: 34781
 2007-03-01 07:52:44 +00:00
Bill Wendling 65c75b57d4 Get rid of verboten <iostream> include. 
llvm-svn: 34777
 2007-03-01 06:05:39 +00:00
Dale Johannesen 962fa8eb9a Changes requested in review of last pass. Also pulled isThumb into a 
member, instead of resetting in every function that uses it.

llvm-svn: 34764
 2007-02-28 23:20:38 +00:00
Evan Cheng f6ca943638 Doh. ARM::PC is obvious a reserved register. 
llvm-svn: 34763
 2007-02-28 23:12:34 +00:00
Dale Johannesen 440995bd9a Add intelligence about where to break large blocks. 
llvm-svn: 34755
 2007-02-28 18:41:23 +00:00
Chris Lattner 7373f3a351 remove dead option 
llvm-svn: 34754
 2007-02-28 18:39:53 +00:00
Chris Lattner eb09e28ccc bugfix: fastcall does not require the first two params to be marked 'inreg', 
they always get registers.

llvm-svn: 34748
 2007-02-28 18:35:11 +00:00
Nate Begeman e0232ec706 More Mach-O writer improvements. 
llvm-svn: 34740
 2007-02-28 07:40:50 +00:00
Chris Lattner 152bfa103e use high-level functions in CCState 
llvm-svn: 34739
 2007-02-28 07:09:55 +00:00
Chris Lattner 227b6c5d19 make use of helper functions in CCState for analyzing formals and calls. 
llvm-svn: 34737
 2007-02-28 07:00:42 +00:00
Chris Lattner d439e86078 switch LowerFastCCCallTo over to using the new fastcall description. 
llvm-svn: 34734
 2007-02-28 06:26:33 +00:00
Chris Lattner 66e1d1dd7e switch LowerFastCCArguments over to using the autogenerated Fastcall description. 
llvm-svn: 34733
 2007-02-28 06:21:19 +00:00
Chris Lattner 0bc74fd6cc add new CC_X86_32_FastCall calling conv, which describes fastcall on win32. 
Factor out a CC_X86_32_Common convention, which is the part shared between
ccc, stdcall and fastcall

llvm-svn: 34732
 2007-02-28 06:20:01 +00:00
Chris Lattner 3066beccb5 rearrange code 
llvm-svn: 34731
 2007-02-28 06:10:12 +00:00
Chris Lattner 3ed3be3b4a remove fastcc (not fastcall) support 
llvm-svn: 34730
 2007-02-28 06:05:16 +00:00
Chris Lattner b9db225049 switch LowerCCCArguments over to using autogenerated CC. 
llvm-svn: 34729
 2007-02-28 05:46:49 +00:00
Chris Lattner 5958b176f3 simplify sret handling 
llvm-svn: 34728
 2007-02-28 05:39:26 +00:00
Chris Lattner be7995953a switch LowerCCCCallTo over to using an autogenerated callingconv 
llvm-svn: 34727
 2007-02-28 05:31:48 +00:00
Chris Lattner 0c0a7b288e rename stuff 
llvm-svn: 34726
 2007-02-28 05:30:29 +00:00
Chris Lattner 6f287c6e92 rename some CCActions, add CCIfInReg 
llvm-svn: 34725
 2007-02-28 05:29:33 +00:00
Chris Lattner ba3d273122 switch return value passing and the x86-64 calling convention information 
over to being autogenerated from the X86CallingConv.td file.

llvm-svn: 34722
 2007-02-28 04:55:35 +00:00
Chris Lattner 659ca56383 make subtarget references work. 
llvm-svn: 34721
 2007-02-28 04:51:41 +00:00
Evan Cheng e8af69632f Make requiresRegisterScavenging determination on a per MachineFunction basis. 
llvm-svn: 34711
 2007-02-28 00:59:19 +00:00
Evan Cheng 9049cd72e6 Temporary: make R12 available in ARM mode if RegScavenger is being used. 
llvm-svn: 34709
 2007-02-28 00:22:44 +00:00
Evan Cheng 30508919c8 Start making use of RegScavenger. 
llvm-svn: 34708
 2007-02-28 00:21:58 +00:00
Evan Cheng 95ae95a6a6 PEI now passes a RegScavenger ptr to eliminateFrameIndex. 
llvm-svn: 34707
 2007-02-28 00:21:17 +00:00
Evan Cheng ee8aca0cfa Minor tweak. Allocate r0 to r3 in reverse order, r3 is least likely to be livein to a function. 
llvm-svn: 34701
 2007-02-27 23:03:55 +00:00
Chris Lattner c5e2a3a80e reenable generation of CC info 
llvm-svn: 34699
 2007-02-27 22:12:19 +00:00
Evan Cheng 6f0969ecb9 Back out previous commit temporarily. 
llvm-svn: 34694
 2007-02-27 21:47:22 +00:00
Evan Cheng 71a7271b8b Let MRegisterInfo now owns RegScavenger; eliminateFrameIndex must preserve register kill info. 
llvm-svn: 34692
 2007-02-27 21:12:35 +00:00
Chris Lattner aeb9ebe3cf implement CCMatchIfCC in terms of CCMatchIf 
llvm-svn: 34685
 2007-02-27 20:45:02 +00:00
Chris Lattner 98c9bd586e build cc info 
llvm-svn: 34684
 2007-02-27 20:44:31 +00:00
Chris Lattner 2ebb2e99d1 a note 
llvm-svn: 34670
 2007-02-27 17:21:09 +00:00
Nicolas Geoffray b524dfd557 Fix parenthesis for BCTRL_{ELF|Macho} test. 
llvm-svn: 34668
 2007-02-27 13:10:41 +00:00
Nicolas Geoffray 89d81878d2 Differentiate between the MachO and the ELF ABI the CALL instruction. 
llvm-svn: 34667
 2007-02-27 13:01:19 +00:00
Jim Laskey b6e200bd68 Duplicate use of LR, take 2. 
llvm-svn: 34666
 2007-02-27 11:55:45 +00:00
Chris Lattner fa9227ed54 Add calling convention info 
llvm-svn: 34661
 2007-02-27 06:59:52 +00:00
Chris Lattner db2049fb8e move target independent calling convention stuff to TargetCallingConv.td 
llvm-svn: 34659
 2007-02-27 05:57:32 +00:00
Chris Lattner 4c83b98604 fill in some holes 
llvm-svn: 34658
 2007-02-27 05:51:05 +00:00
Chris Lattner c9eed39a5d switch x86-64 return value lowering over to using same mechanism as argument 
lowering uses.

llvm-svn: 34657
 2007-02-27 05:28:59 +00:00
Chris Lattner 9f059194a7 Minor refactoring of CC Lowering interfaces 
llvm-svn: 34656
 2007-02-27 05:13:54 +00:00
Chris Lattner dc3adc83e7 move CC Lowering stuff to its own public interface 
llvm-svn: 34655
 2007-02-27 04:43:02 +00:00
Chris Lattner 2e5e8407ad refactor x86-64 argument lowering yet again, this time eliminating templates, 
'clients', etc, and adding CCValAssign instead.

llvm-svn: 34654
 2007-02-27 04:18:15 +00:00
Evan Cheng 5d7ce57c13 Backing out Jim's LR spill changes. This was causing llvm-gcc bootstrapping 
to infinite loop:
PPCMachineFunctionInfo.h updated: 1.2 -> 1.3
PPCRegisterInfo.cpp updated: 1.110 -> 1.111
PPCRegisterInfo.h updated: 1.28 -> 1.29

llvm-svn: 34652
 2007-02-27 02:55:29 +00:00
Chris Lattner 535bd6d3ba always lower to RETFLAG, never leave it as just ret. 
llvm-svn: 34639
 2007-02-26 19:44:02 +00:00
Chris Lattner 77f0a1553c fix attribution 
llvm-svn: 34637
 2007-02-26 18:56:07 +00:00
Chris Lattner 5d00a0b8a9 Add a description of the X86-64 calling convention and the return 
conventions.  This doesn't do anything yet, but may in the future.

llvm-svn: 34636
 2007-02-26 18:17:14 +00:00
Chris Lattner ff19957468 switch to smallvector 
llvm-svn: 34633
 2007-02-26 07:59:53 +00:00
Chris Lattner 294780829a initial hack at splitting the x86-64 calling convention info out from the 
mechanics that process it.  I'm still not happy with this, but it's a step
in the right direction.

llvm-svn: 34631
 2007-02-26 07:50:02 +00:00
Chris Lattner d41bff0f97 the truncate must always be done, it's only the assert that is conditional. 
llvm-svn: 34628
 2007-02-26 05:21:05 +00:00
Chris Lattner 74f5bcf8eb add an accessor. 
llvm-svn: 34625
 2007-02-26 04:01:25 +00:00
Chris Lattner 1db979bae8 in X86-64 CCC, i8/i16 arguments are already properly zext/sext'd on input. 
Capture this so that downstream zext/sext's are optimized out.  This
compiles:
  int test(short X) { return (int)X; }

to:

_test:
        movl %edi, %eax
        ret

instead of:

_test:
        movswl %di, %eax
        ret


GCC produces this bizarre code:

_test:
        movw    %di, -12(%rsp)
        movswl  -12(%rsp),%eax
        ret

llvm-svn: 34623
 2007-02-26 03:18:56 +00:00