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34 Commits

Author SHA1 Message Date
Chris Lattner
7012916275 fix an ugly wart in the MCInstPrinter api where the 
raw_ostream to print an instruction to had to be specified
at MCInstPrinter construction time instead of being able
to pick at each call to printInstruction.

llvm-svn: 100307
 2010-04-04 05:04:31 +00:00
Chris Lattner
76c564b1bb change a ton of code to not implicitly use the "O" raw_ostream 
member of AsmPrinter.  Instead, pass it in explicitly.

llvm-svn: 100306
 2010-04-04 04:47:45 +00:00
Bob Wilson
ae08a736d6 Re-commit r98683 ("remove redundant writeback flag from ARM address mode 6") 
with changes to add a separate optional register update argument.  Change all
the NEON instructions with address register writeback to use it.

llvm-svn: 99095
 2010-03-20 22:13:40 +00:00
Daniel Dunbar
857955243e Fix -Asserts warnings. 
llvm-svn: 98928
 2010-03-19 03:18:23 +00:00
Johnny Chen
8f3004cff2 Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm 
instructions to help disassembly.

We also changed the output of the addressing modes to omit the '+' from the
assembler syntax #+/-<imm> or +/-<Rm>.  See, for example, A8.6.57/58/60.

And modified test cases to not expect '+' in +reg or #+num.  For example,

; CHECK:       ldr.w	r9, [r7, #28]

llvm-svn: 98745
 2010-03-17 17:52:21 +00:00
Bob Wilson
c7ba918b84 Revert 98683. It is breaking something in the disassembler. 
llvm-svn: 98692
 2010-03-16 23:01:13 +00:00
Bob Wilson
c953bca10b Remove redundant writeback flag from ARM address mode 6. Also remove the 
optional register update argument, which is currently unused -- when we add
support for that, it can just be a separate operand.

llvm-svn: 98683
 2010-03-16 21:44:40 +00:00
Bob Wilson
466d1e3dc2 Remove redundant writeback flag in ARM addressing mode 5. 
llvm-svn: 98648
 2010-03-16 18:38:09 +00:00
Bob Wilson
d6243b49d4 Remove the writeback flag from ARM's address mode 4. Now that we have separate 
instructions for ld/st with writeback, the flag is completely redundant.

llvm-svn: 98643
 2010-03-16 17:46:45 +00:00
Bob Wilson
ceda0780f9 Fix unused variable warnings. 
llvm-svn: 98642
 2010-03-16 17:44:45 +00:00
Bob Wilson
1b4e8cc69c --- Reverse-merging r98637 into '.': 
U    test/CodeGen/ARM/tls2.ll
U    test/CodeGen/ARM/arm-negative-stride.ll
U    test/CodeGen/ARM/2009-10-30.ll
U    test/CodeGen/ARM/globals.ll
U    test/CodeGen/ARM/str_pre-2.ll
U    test/CodeGen/ARM/ldrd.ll
U    test/CodeGen/ARM/2009-10-27-double-align.ll
U    test/CodeGen/Thumb2/thumb2-strb.ll
U    test/CodeGen/Thumb2/ldr-str-imm12.ll
U    test/CodeGen/Thumb2/thumb2-strh.ll
U    test/CodeGen/Thumb2/thumb2-ldr.ll
U    test/CodeGen/Thumb2/thumb2-str_pre.ll
U    test/CodeGen/Thumb2/thumb2-str.ll
U    test/CodeGen/Thumb2/thumb2-ldrh.ll
U    utils/TableGen/TableGen.cpp
U    utils/TableGen/DisassemblerEmitter.cpp
D    utils/TableGen/RISCDisassemblerEmitter.h
D    utils/TableGen/RISCDisassemblerEmitter.cpp
U    Makefile.rules
U    lib/Target/ARM/ARMInstrNEON.td
U    lib/Target/ARM/Makefile
U    lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp
U    lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
U    lib/Target/ARM/AsmPrinter/ARMInstPrinter.h
D    lib/Target/ARM/Disassembler
U    lib/Target/ARM/ARMInstrFormats.td
U    lib/Target/ARM/ARMAddressingModes.h
U    lib/Target/ARM/Thumb2ITBlockPass.cpp

llvm-svn: 98640
 2010-03-16 16:59:47 +00:00
Johnny Chen
3d9327bd06 Initial ARM/Thumb disassembler check-in. It consists of a tablgen backend 
(RISCDisassemblerEmitter) which emits the decoder functions for ARM and Thumb,
and the disassembler core which invokes the decoder function and builds up the
MCInst based on the decoded Opcode.

Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm
instructions to help disassembly.

We also changed the output of the addressing modes to omit the '+' from the
assembler syntax #+/-<imm> or +/-<Rm>.  See, for example, A8.6.57/58/60.

And modified test cases to not expect '+' in +reg or #+num.  For example,

; CHECK:       ldr.w	r9, [r7, #28]

llvm-svn: 98637
 2010-03-16 16:36:54 +00:00
Bob Wilson
298a83ecfe Stop using the old pre-UAL syntax for LDM/STM instruction suffixes. 
This does not move entirely to UAL syntax, since the default "increment after"
suffix is empty but we still use "IA" for that.

llvm-svn: 98635
 2010-03-16 16:19:07 +00:00
Johnny Chen
0dae1cbf1c AL is an optional mnemonic extension for always, except in IT instructions. 
Add printMandatoryPredicateOperand() PrintMethod for IT predicate printing.

Ref: A8.3 Conditional execution
llvm-svn: 97571
 2010-03-02 17:57:15 +00:00
Chris Lattner
41ad1905c9 sink handling of target-independent machine instrs (other 
than DEBUG_VALUE :(  ) into the target indep AsmPrinter.cpp
file.   This allows elimination of the 
NO_ASM_WRITER_BOILERPLATE hack among other things.

llvm-svn: 95177
 2010-02-03 01:00:52 +00:00
Johnny Chen
ab2b1a7aeb Implemented ARMInstPrinter::printThumbS4ImmOperand(). 
llvm-svn: 94457
 2010-01-25 22:13:10 +00:00
Chris Lattner
c8f7717808 remove the MAI argument to MCExpr::print and switch overthing to use << when printing them. 
llvm-svn: 93699
 2010-01-18 00:37:40 +00:00
Evan Cheng
b18525937c More consistent thumb1 asm printing. 
llvm-svn: 89328
 2009-11-19 06:57:41 +00:00
Jim Grosbach
d7cf55cd0e Use Unified Assembly Syntax for the ARM backend. 
llvm-svn: 86494
 2009-11-09 00:11:35 +00:00
Daniel Dunbar
a470eac6a1 Fix -Asserts warning. 
llvm-svn: 84687
 2009-10-20 22:10:05 +00:00
Chris Lattner
9351e4f4b2 implement some more easy hooks. 
llvm-svn: 84614
 2009-10-20 06:22:33 +00:00
Chris Lattner
60d5131653 Implement some hooks, make printOperand abort if unknown modifiers are 
present.

llvm-svn: 84613
 2009-10-20 06:15:28 +00:00
Chris Lattner
85ab670644 add supprort for the 'sbit' operand, MOVi apparently has one. 
llvm-svn: 84577
 2009-10-20 00:46:11 +00:00
Chris Lattner
19c52201bd add support for instruction predicates. 
llvm-svn: 84575
 2009-10-20 00:42:49 +00:00
Chris Lattner
2f69ed8f4c implement printSORegOperand, add lowering for the nasty and despicable MOVi2pieces :) 
llvm-svn: 84573
 2009-10-20 00:40:56 +00:00
Chris Lattner
bd531262f8 handle addmode4 modifiers, fix a fixme in printRegisterList 
by ignoring all implicit regs when lowering.

llvm-svn: 84566
 2009-10-19 23:31:43 +00:00
Chris Lattner
186c6b0834 lower the ARM::CONSTPOOL_ENTRY pseudo op, giving us constant pool entries 
like:

@ BB#1:
	.align	2
LCPI1_0:
	.long	L_.str-(LPC0+8)

Note that proper indentation of the label :)

llvm-svn: 84558
 2009-10-19 22:33:05 +00:00
Chris Lattner
add5749ac8 add MCInstLower support for lowering ARM::PICADD, a pseudo op for pic stuffola. 
llvm-svn: 84553
 2009-10-19 22:23:04 +00:00
Chris Lattner
ef2979b1da add register list and hacked up addrmode #4 support, we now get this: 
_main:
	stmsp! sp!, {r7, lr}
	mov r7, sp
	sub sp, sp, #4
	mov r0, #0
	str r0, [sp]
	ldr r0, LCPI1_0
	bl _printf
	ldr r0, [sp]
	mov sp, r7
	ldmsp! sp!, {r7, pc}

Note the unhappy ldm/stm because of modifiers being ignored.

llvm-svn: 84546
 2009-10-19 22:09:23 +00:00
Chris Lattner
7ddfdc4133 add addrmode2 support, getting us up to: 
_main:
	stm , 
	mov r7, sp
	sub sp, sp, #4
	mov r0, #0
	str r0, [sp]
	ldr r0, LCPI1_0
	bl _printf
	ldr r0, [sp]
	mov sp, r7
	ldm , 

llvm-svn: 84543
 2009-10-19 21:57:05 +00:00
Chris Lattner
889a6217fa add jump tables, constant pools and some trivial global 
lowering stuff.  We can now compile hello world to:

_main:
	stm , 
	mov r7, sp
	sub sp, sp, #4
	mov r0, #0
	str r0, 
	ldr r0, 
	bl _printf
	ldr r0, 
	mov sp, r7
	ldm , 

Almost looks like arm code :)

llvm-svn: 84542
 2009-10-19 21:53:00 +00:00
Chris Lattner
89d47205b5 add printing support for SOImm operands, getting us to: 
_main:
	stm , 
	mov r7, sp
	sub sp, sp, #4
	mov r0, #0
	str r0, 

llvm-svn: 84535
 2009-10-19 21:21:39 +00:00
Chris Lattner
93e3ef6536 wire up some basic printOperand goodness, giving us stuff like this before 
we abort:

_main:
	stm , 
	mov r7, sp
	sub sp, sp, 
	mov r0, 
	str r0, 

llvm-svn: 84532
 2009-10-19 20:59:55 +00:00
Chris Lattner
a290778859 stub out a minimal ARMInstPrinter. 
llvm-svn: 84527
 2009-10-19 19:56:26 +00:00