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Commit Graph

27 Commits

Author SHA1 Message Date
Bill Wendling
80dd6f7494 The floating point value is encoded in its binary form as an Imm. Convert it
appropriately so that it prints out the decimal representation.

llvm-svn: 124230
2011-01-25 21:27:46 +00:00
Owen Anderson
18dfab2332 Add support to the ARM MC infrastructure to support mcr and friends. This requires supporting
the symbolic immediate names used for these instructions, fixing their pretty-printers, and
adding proper encoding information for them.

With this, we can properly pretty-print and encode assembly like:
	mrc p15, #0, r3, c13, c0, #3

Fixes <rdar://problem/8857858>.

llvm-svn: 123404
2011-01-13 21:46:02 +00:00
Bill Wendling
61720b79f9 The tLDR et al instructions were emitting either a reg/reg or reg/imm
instruction based on the t_addrmode_s# mode and what it returned. There is some
obvious badness to this. In particular, it's hard to do MC-encoding when the
instruction may change out from underneath you after the t_addrmode_s# variable
is finally resolved.

The solution is to revert a long-ago change that merged the reg/reg and reg/imm
versions. There is the addition of several new addressing modes. They no longer
have extraneous operands associated with them. I.e., if it's reg/reg we don't
have to have a dummy zero immediate tacked on to the SDNode.

There are some obvious cleanups here, which will happen shortly.

llvm-svn: 121747
2010-12-14 03:36:38 +00:00
Owen Anderson
81f8b084e6 Second attempt at converting Thumb2's LDRpci, including updating the gazillion places that need to know about it.
llvm-svn: 121082
2010-12-07 00:45:21 +00:00
Jim Grosbach
c69ad2176a When using the 'push' mnemonic for Thumb2 stmdb, be explicit when it's the
32-bit wide version by adding the .w suffix.

llvm-svn: 120838
2010-12-03 20:33:01 +00:00
Jim Grosbach
89e90b7310 Pseudo-ize Thumb2 jump tables with explicit MC lowering to the raw
instructions. This simplifies instruction printing and disassembly.

llvm-svn: 120333
2010-11-29 22:37:40 +00:00
Jim Grosbach
71042b51a1 Rename t2 TBB and TBH instructions to reference that they encode the jump table
data. Next up, pseudo-izing them.

llvm-svn: 120320
2010-11-29 21:28:32 +00:00
Jim Grosbach
3e84f9d6cb ARM Pseudo-ize tBR_JTr.
llvm-svn: 120310
2010-11-29 19:32:47 +00:00
Bill Wendling
b450d320ec Encode the multi-load/store instructions with their respective modes ('ia',
'db', 'ib', 'da') instead of having that mode as a separate field in the
instruction. It's more convenient for the asm parser and much more readable for
humans.
<rdar://problem/8654088>

llvm-svn: 119310
2010-11-16 01:16:36 +00:00
Chris Lattner
d045c38bf6 stub out a powerpc MCInstPrinter implementation.
llvm-svn: 119059
2010-11-14 19:40:38 +00:00
Bill Wendling
0a55425158 Minor cleanups:
- Get the opcode once.
- Add a ParserMatchClass to reglist.

llvm-svn: 118997
2010-11-13 10:40:19 +00:00
Evan Cheng
1f5296d832 For pre-v6t2 targets, only select MOVi32imm if the immediate can be handled with movi + orr.
llvm-svn: 118945
2010-11-12 23:46:13 +00:00
Bill Wendling
34599f4aa8 The MC code couldn't handle ARM LDR instructions with negative offsets:
vldr.64 d1, [r0, #-32]

The problem was with how the addressing mode 5 encodes the offsets. This change
makes sure that the way offsets are handled in addressing mode 5 is consistent
throughout the MC code. It involves re-refactoring the "getAddrModeImmOpValue"
method into an "Imm12" and "addressing mode 5" version. But not to worry! The
majority of the duplicated code has been unified.

llvm-svn: 118144
2010-11-03 01:49:29 +00:00
Jim Grosbach
90a084bac2 Remove unused function.
llvm-svn: 118141
2010-11-03 01:35:15 +00:00
Jim Grosbach
d3213d4048 Remove the no longer used 'Modifier' optional operand to the ARM
printOperand() asm printer helper functions. rdar://8425198

llvm-svn: 118140
2010-11-03 01:11:15 +00:00
Jim Grosbach
4d6b503b4c Remove unused function.
llvm-svn: 118139
2010-11-03 01:07:48 +00:00
Jim Grosbach
c10d3f3d4b Break ARM addrmode4 (load/store multiple base address) into its constituent
parts. Represent the operation mode as an optional operand instead.
rdar://8614429

llvm-svn: 118137
2010-11-03 01:01:43 +00:00
Chris Lattner
ba1e908431 hook up getOpcodeName for ARM so that "llc -show-mc-inst" includes
the opcode string in the inst dump, e.g.:
	vmov	r2, r3, d17             @ encoding: [0x31,0x2b,0x53,0xec]
                                        @ <MCInst #989 VMOVRRD
                                        @  <MCOperand Reg:68>
                                        @  <MCOperand Reg:69>
                                        @  <MCOperand Reg:19>
                                        @  <MCOperand Imm:14>
                                        @  <MCOperand Reg:0>>

The "VMOVRRD" is new.

llvm-svn: 117609
2010-10-28 21:37:33 +00:00
Jim Grosbach
d02c1c7d77 PLD, PLDW, PLI encodings, plus refactor their use of addrmode2.
llvm-svn: 117571
2010-10-28 18:34:10 +00:00
Jim Grosbach
5ccda16fe2 LDRi12 machine instructions handle negative offset operands normally (simple
integer values), not with the addrmode2 encoding.

llvm-svn: 117429
2010-10-27 01:19:41 +00:00
Jim Grosbach
30f6744f05 First part of refactoring ARM addrmode2 (load/store) instructions to be more
explicit about the operands. Split out the different variants into separate
instructions. This gives us the ability to, among other things, assign
different scheduling itineraries to the variants. rdar://8477752.

llvm-svn: 117409
2010-10-26 22:37:02 +00:00
Jim Grosbach
1a13b873e7 imm12 operands aren't Thumb2 only, so rename the printer helper function.
llvm-svn: 117291
2010-10-25 20:00:01 +00:00
Jim Grosbach
1699d40f80 Refactor the ARM 'setend' instruction pattern. Use a single instruction pattern
and handle the operand explicitly. Flesh out encoding information. Add an
explicit disassembler testcase for the instruction.

llvm-svn: 116432
2010-10-13 21:00:04 +00:00
Jim Grosbach
4c7da8acbc Kill of the vestiges of the 'call' Modifier (no longer needed for PLT).
llvm-svn: 115845
2010-10-06 21:36:43 +00:00
Jim Grosbach
e8a4fef4ea Now that VDUPfqf and VDUPfdfare properly pseudos, kill the no-longer-needed
"lane" operand modifier.

llvm-svn: 115843
2010-10-06 21:22:32 +00:00
Jim Grosbach
a158e3e6c1 PrintSpecial() can go away now.
llvm-svn: 115376
2010-10-01 23:27:48 +00:00
Jim Grosbach
2143c9d321 Rename the AsmPrinter directory to InstPrinter for those targets that have
been MC-ized for assembly printing. MSP430 is mostly so, but still has the
asm printer and lowering code in the printer subdir for the moment.

llvm-svn: 115360
2010-10-01 22:39:28 +00:00