aa9cb9df59
[fast-isel] Add support for selecting @llvm.trap().
...
llvm-svn: 156646
2012-05-11 21:33:49 +00:00
3268692aa8
[fast-isel] Remove -disable-arm-fast-isel option. -fast-isel=0 suffices. Minor cleanup.
...
llvm-svn: 156632
2012-05-11 19:40:25 +00:00
90f9afe659
[fast-isel] Cleaner fix for when we're unable to handle a non-double multi-reg
...
retval. Hoists check before emitting the call to avoid unnecessary work.
rdar://11430407
PR12796
llvm-svn: 156628
2012-05-11 18:51:55 +00:00
519b12f927
[fast-isel] Rather then assert (or segfault in a non-asserts build), fall back
...
to selection DAG isel if we're unable to handle a non-double multi-reg retval.
rdar://11430407
PR12796
llvm-svn: 156622
2012-05-11 17:41:06 +00:00
466d3d8faa
The return type is an unsigned, not a bool.
...
llvm-svn: 156621
2012-05-11 16:41:38 +00:00
c7242e054d
Convert more uses of XXXRegisterClass to &XXXRegClass. No functional change since they are equivalent.
...
llvm-svn: 155188
2012-04-20 07:30:17 +00:00
0c509fa6bf
Tidy up. 80 columns.
...
llvm-svn: 154226
2012-04-06 23:43:50 +00:00
6a2e99a46a
Deduplicate ARM call-related instructions.
...
We had special instructions for iOS because r9 is call-clobbered, but
that is represented dynamically by the register mask operands now, so
there is no need for the pseudo-instructions.
llvm-svn: 154144
2012-04-06 00:04:58 +00:00
f6e7e12f75
Remove unnecessary llvm:: qualifications
...
llvm-svn: 153500
2012-03-27 07:21:54 +00:00
5fa0caafc0
Prune includes and replace uses of ARMRegisterInfo.h with ARMBaeRegisterInfo.h
...
llvm-svn: 153422
2012-03-26 00:45:15 +00:00
23f8c4a50c
Check if we can handle the arguments of a call (and therefore the call) in
...
fast-isel before emitting code. If the program bails after code was emitted,
then it could lead to the stack being adjusted more than once (two
CALLSEQ_BEGINs emitted) but being adjuste back only once after the call. This
leads to general badness and gnashing of teeth.
<rdar://problem/11050630>
llvm-svn: 152959
2012-03-16 23:11:07 +00:00
26d05887d9
[fast-isel] Address Eli's comments for r152847. Specifically, add a test case
...
and still allow immediate encoding, just not with cmn.
rdar://11038907
llvm-svn: 152869
2012-03-15 22:54:20 +00:00
01cecbffd6
[fast-isel] Don't try to encode LONG_MIN using cmn instructions.
...
rdar://11038907
llvm-svn: 152847
2012-03-15 21:40:23 +00:00
377f1f2d39
[fast-isel] ARMEmitCmp generates FMSTAT, which transfers the floating-point
...
condition flags to CPSR. This allows us to simplify SelectCmp.
Patch by Zonr Chang <zonr.xchg@gmail.com>.
llvm-svn: 152243
2012-03-07 20:59:26 +00:00
718cfbe05a
Split fpscr into two registers: FPSCR and FPSCR_NZCV.
...
The fpscr register contains both flags (set by FP operations/comparisons) and
control bits. The control bits (FPSCR) should be reserved, since they're always
available and needn't be defined before use. The flag bits (FPSCR_NZCV) should
like to be unreserved so they can be hoisted by MachineCSE. This fixes PR12165.
llvm-svn: 152076
2012-03-06 00:19:55 +00:00
6990e5f08c
ARM use the right opcode for FP<->Integer move in fast-isel.
...
rdar://10965031
llvm-svn: 151850
2012-03-01 22:47:09 +00:00
fa7a53746c
Switch ARM target to register masks.
...
I'll let the buildbots determine the compile time improvements from this
change, but 464.h264ref has 5% faster codegen at -O2.
This patch does cause some assembly changes. Branch folding can make
different decisions about calls with dead return values.
CriticalAntiDepBreaker may choose different registers because its
liveness tracking is affected. MachineCopyPropagation may sometimes
leave a dead copy behind.
llvm-svn: 151331
2012-02-24 01:19:29 +00:00
760b134ffa
Make all pointers to TargetRegisterClass const since they are all pointers to static data that should not be modified.
...
llvm-svn: 151134
2012-02-22 05:59:10 +00:00
fcd29ae390
[fast-isel] Add support for returning non-legal types with no sign- or zero-
...
entend flag.
llvm-svn: 150774
2012-02-17 01:21:28 +00:00
a0d3c75015
Remove unnecessary assignment to temporary, ResultReg.
...
llvm-svn: 150737
2012-02-16 22:45:33 +00:00
0bc5132457
Add braces to if clause to make symmetric with associate else clause.
...
llvm-svn: 150591
2012-02-15 17:36:21 +00:00
dccc4794e6
Use a temporary variable, rather then a series of redundant calls.
...
llvm-svn: 150536
2012-02-15 00:23:55 +00:00
5b9c3974d2
Remove unnecessary assignment to temporary, ResultReg.
...
llvm-svn: 150520
2012-02-14 22:29:48 +00:00
0ee8c513f7
[fast-isel] Add support for SUBs with non-legal types.
...
llvm-svn: 150047
2012-02-08 02:45:44 +00:00
bd471255a9
[fast-isel] Add support for ORs with non-legal types.
...
llvm-svn: 150045
2012-02-08 02:29:21 +00:00
ded4c99f2e
[fast-isel] Add support for indirect branches.
...
llvm-svn: 150014
2012-02-07 23:56:08 +00:00
e55c556a24
Convert assert(0) to llvm_unreachable
...
llvm-svn: 149961
2012-02-07 02:50:20 +00:00
685b20c114
[fast-isel] Add support for ADDs with non-legal types.
...
llvm-svn: 149934
2012-02-06 23:50:07 +00:00
ae22c60f90
Persuade GCC that there is nothing worth warning about here (there isn't).
...
llvm-svn: 149834
2012-02-05 14:20:11 +00:00
b84a4b4c64
[fast-isel] Add support for URem.
...
llvm-svn: 149716
2012-02-03 21:23:45 +00:00
e023d5d7f3
[fast-isel] Rename isZExt to isSigned. No functional change intended.
...
llvm-svn: 149714
2012-02-03 21:14:11 +00:00
aaa55a88b6
[fast-isel] Add support for UDIV.
...
llvm-svn: 149712
2012-02-03 21:07:27 +00:00
41f0e78b6c
[fast-isel] Add support for FPToUI. Also add test cases for FPToSI.
...
llvm-svn: 149706
2012-02-03 20:27:51 +00:00
a8a8ac5d47
[fast-isel] Add support for selecting UIToFP.
...
llvm-svn: 149704
2012-02-03 19:42:52 +00:00
46a9f016c5
More dead code removal (using -Wunreachable-code)
...
llvm-svn: 148578
2012-01-20 21:51:11 +00:00
d284c1d80d
Fix assert.
...
llvm-svn: 147966
2012-01-11 20:55:27 +00:00
083dbdca7f
Match SelectionDAG logic for enabling movt.
...
Darwin doesn't do static, and ELF targets only support static.
llvm-svn: 147740
2012-01-07 20:49:15 +00:00
8cdce7e690
Use getRegForValue() to materialize the address of ARM globals.
...
This enables basic local CSE, giving us 20% smaller code for
consumer-typeset in -O0 builds.
<rdar://problem/10658692>
llvm-svn: 147720
2012-01-07 04:07:22 +00:00
68f034ee1a
Use movw+movt in ARMFastISel::ARMMaterializeGV.
...
This eliminates a lot of constant pool entries for -O0 builds of code
with many global variable accesses.
This speeds up -O0 codegen of consumer-typeset by 2x because the
constant island pass no longer has to look at thousands of constant pool
entries.
<rdar://problem/10629774>
llvm-svn: 147712
2012-01-07 01:47:05 +00:00
68132d8093
ARM target code clean up. Check for iOS, not Darwin where it makes sense.
...
llvm-svn: 146981
2011-12-20 18:26:50 +00:00
ded6160473
VFP2 is required for FP loads. Noticed by inspection.
...
llvm-svn: 146569
2011-12-14 17:55:03 +00:00
fce28914ea
Tidy up.
...
llvm-svn: 146568
2011-12-14 17:32:02 +00:00
a26979be29
Fix 80-column violation and extraneous brackets.
...
llvm-svn: 146566
2011-12-14 17:26:05 +00:00
7fae11b231
- Add MachineInstrBundle.h and MachineInstrBundle.cpp. This includes a function
...
to finalize MI bundles (i.e. add BUNDLE instruction and computing register def
and use lists of the BUNDLE instruction) and a pass to unpack bundles.
- Teach more of MachineBasic and MachineInstr methods to be bundle aware.
- Switch Thumb2 IT block to MI bundles and delete the hazard recognizer hack to
prevent IT blocks from being broken apart.
llvm-svn: 146542
2011-12-14 02:11:42 +00:00
563de603f7
[fast-isel] Unaligned loads of floats are not supported. Therefore, convert to a regular
...
load and then move the result from a GPR to a FPR.
llvm-svn: 146502
2011-12-13 19:22:14 +00:00
7f8e563a69
Add bundle aware API for querying instruction properties and switch the code
...
generator to it. For non-bundle instructions, these behave exactly the same
as the MC layer API.
For properties like mayLoad / mayStore, look into the bundle and if any of the
bundled instructions has the property it would return true.
For properties like isPredicable, only return true if *all* of the bundled
instructions have the property.
For properties like canFoldAsLoad, isCompare, conservatively return false for
bundles.
llvm-svn: 146026
2011-12-07 07:15:52 +00:00
c77830d21e
[arm-fast-isel] Doublewords only require word-alignment.
...
rdar://10528060
llvm-svn: 145891
2011-12-06 01:44:17 +00:00
80381f6cbf
Fix 80-column issues.
...
llvm-svn: 145783
2011-12-04 00:52:23 +00:00
ec3b77e00d
[arm-fast-isel] Unaligned stores of floats require special care.
...
rdar://10510150
llvm-svn: 145742
2011-12-03 02:21:57 +00:00
50f02cb21b
Move global variables in TargetMachine into new TargetOptions class. As an API
...
change, now you need a TargetOptions object to create a TargetMachine. Clang
patch to follow.
One small functionality change in PTX. PTX had commented out the machine
verifier parts in their copy of printAndVerify. That now calls the version in
LLVMTargetMachine. Users of PTX who need verification disabled should rely on
not passing the command-line flag to enable it.
llvm-svn: 145714
2011-12-02 22:16:29 +00:00
9fd0e55e91
[arm-fast-isel] After promoting a function parameter be sure to update the
...
argument value type. Otherwise, the sign/zero-extend has no effect on arguments
passed via the stack (i.e., undefined high-order bits).
rdar://10515467
llvm-svn: 145701
2011-12-02 20:25:18 +00:00
12330650f8
Silence wrong warnings from GCC about variables possibly being used
...
uninitialized: GCC doesn't understand that the variables are only used
if !UseImm, in which case they have been initialized.
llvm-svn: 145239
2011-11-28 10:31:27 +00:00
ee93ff736a
Guard call to getRegForValue with isTypeLegal check to avoid unnecessary work/dead code.
...
llvm-svn: 144959
2011-11-18 01:17:34 +00:00
0eff3e5c21
Add TODO comment.
...
llvm-svn: 144920
2011-11-17 21:46:13 +00:00
15b2498e88
Dead code.
...
llvm-svn: 144888
2011-11-17 07:24:49 +00:00
ce619ddfc5
Don't unconditionally set the kill flag.
...
rdar://10456186
llvm-svn: 144872
2011-11-17 01:16:53 +00:00
80979b6ea6
Check to make sure we can select the instruction before trying to put the
...
operands into a register. Otherwise, we may materialize dead code.
llvm-svn: 144805
2011-11-16 18:39:44 +00:00
af13d767a2
Add FIXME comment.
...
llvm-svn: 144743
2011-11-16 00:32:20 +00:00
0745e645e0
Remove some unnecessary includes of PseudoSourceValue.h.
...
llvm-svn: 144631
2011-11-15 07:24:32 +00:00
057b6d3476
Supporting inline memmove isn't going to be worthwhile. The only way to avoid
...
violating a dependency is to emit all loads prior to stores. This would likely
cause a great deal of spillage offsetting any potential gains.
llvm-svn: 144585
2011-11-14 23:04:09 +00:00
ab7223e99a
Add support for inlining small memcpys.
...
rdar://10412592
llvm-svn: 144578
2011-11-14 22:46:17 +00:00
45110fdf8d
Fix a performance regression from r144565. Positive offsets were being lowered
...
into registers, rather then encoded directly in the load/store.
llvm-svn: 144576
2011-11-14 22:34:48 +00:00
adfd200bcb
Add support for Thumb load/stores with negative offsets.
...
rdar://10412592
llvm-svn: 144565
2011-11-14 20:22:27 +00:00
2a1df883d0
Add support for ARM halfword load/stores and signed byte loads with negative
...
offsets.
rdar://10412592
llvm-svn: 144518
2011-11-14 04:09:28 +00:00
1198d894d0
The order in which the predicate is added differs between Thumb and ARM mode. Fix predicate when in ARM mode and restore SelectIntrinsicCall.
...
llvm-svn: 144494
2011-11-13 09:44:21 +00:00
a476e391f1
Temporarily disable SelectIntrinsicCall when in ARM mode. This is causing failures.
...
llvm-svn: 144492
2011-11-13 05:14:43 +00:00
5196efdf36
Fix comments.
...
llvm-svn: 144490
2011-11-13 04:25:02 +00:00
c8cfd3a8fb
Add support for emitting both signed- and zero-extend loads. Fix
...
SimplifyAddress to handle either a 12-bit unsigned offset or the ARM +/-imm8
offsets (addressing mode 3). This enables a load followed by an integer
extend to be folded into a single load.
For example:
ldrb r1, [r0] ldrb r1, [r0]
uxtb r2, r1 =>
mov r3, r2 mov r3, r1
llvm-svn: 144488
2011-11-13 02:23:59 +00:00
a7ebc5617d
Add support in fast-isel for selecting memset/memcpy/memmove intrinsics.
...
llvm-svn: 144426
2011-11-11 23:31:03 +00:00
e19b0a9eb8
Rename variables to avoid confusion. No functionallity change intended.
...
llvm-svn: 144377
2011-11-11 06:27:41 +00:00
7ddd63ce4e
Add support for using immediates with select instructions.
...
rdar://10412592
llvm-svn: 144376
2011-11-11 06:20:39 +00:00
023ede5649
When loading a value, treat an i1 as an i8.
...
llvm-svn: 144356
2011-11-11 02:38:59 +00:00
2a3503e061
Add support for using MVN to materialize negative constants.
...
rdar://10412592
llvm-svn: 144348
2011-11-11 00:36:21 +00:00
d1762e00e2
When in ARM mode, LDRH/STRH require special handling of negative offsets.
...
For correctness, disable this for now.
rdar://10418009
llvm-svn: 144316
2011-11-10 21:09:49 +00:00
3fbd094ad9
For immediate encodings of icmp, zero or sign extend first. Then
...
determine if the value is negative and flip the sign accordingly.
rdar://10422026
llvm-svn: 144258
2011-11-10 01:30:39 +00:00
2f27fab6ed
The ARM LDRH/STRH instructions use a +/-imm8 encoding, not an imm12.
...
rdar://10418009
llvm-svn: 144213
2011-11-09 21:30:12 +00:00
595d419427
Add support for encoding immediates in icmp and fcmp. Hopefully, this will
...
remove a fair number of unnecessary materialized constants.
rdar://10412592
llvm-svn: 144163
2011-11-09 03:22:02 +00:00
0439cfc41f
ARMFastISel doesn't support thumb1. Rename isThumb to isThumb2 to reflect this.
...
No functional change intended.
llvm-svn: 144122
2011-11-08 21:12:00 +00:00
5de1bea5c9
Enable support for returning i1, i8, and i16. Nothing special todo as it's the
...
callee's responsibility to sign or zero-extend the return value. The additional
test case just checks to make sure the calls are selected (i.e., -fast-isel-abort
doesn't assert).
llvm-svn: 144047
2011-11-08 00:03:32 +00:00
d0191a53c9
Add support for passing i1, i8, and i16 call parameters. Also, be sure to
...
zero-extend the constant integer encoding. Test case provides testing for
both call parameters and materialization of i1, i8, and i16 types.
llvm-svn: 143821
2011-11-05 20:16:15 +00:00
5b8fdd7b62
Cannot create a result register for non-legal types.
...
llvm-svn: 143749
2011-11-04 23:45:39 +00:00
e8b8b77307
When materializing an i32, SExt vs ZExt doesn't matter when we're trying to fit
...
in a 16-bit immediate. However, for the shorter non-legal types (i.e., i1, i8,
i16) we should not sign-extend. This prevents us from materializing things
such as 'true' (i.e., i1 1).
llvm-svn: 143743
2011-11-04 23:09:49 +00:00
67f96887aa
Enable support for materializing i1, i8, and i16 integers via move immediate.
...
llvm-svn: 143739
2011-11-04 22:29:00 +00:00
8a98ec4d4b
Indentation.
...
llvm-svn: 143670
2011-11-04 00:58:10 +00:00
f3e73ad5da
Add fast-isel support for returning i1, i8, and i16.
...
llvm-svn: 143669
2011-11-04 00:50:21 +00:00
bf5f4bec1a
Add support for sign-extending non-legal types in SelectSIToFP().
...
llvm-svn: 143603
2011-11-03 02:04:59 +00:00
9cf803c4bf
Add support for comparing integer non-legal types.
...
llvm-svn: 143559
2011-11-02 18:08:25 +00:00
4489f948a7
Factor out an EmitIntExt function. No functionality change intended.
...
llvm-svn: 143547
2011-11-02 17:20:24 +00:00
ee7e452571
Factor out a SelectTrunc function. No functionality change intended.
...
llvm-svn: 143523
2011-11-02 00:18:48 +00:00
d24e7e1d9b
A branch predicated on a constant can just FastEmit an unconditional branch.
...
llvm-svn: 143086
2011-10-27 00:21:16 +00:00
a486f44733
Add a TODO comment. FastISel works by parsing each basic block from the bottom
...
up. Thus, improving the support for compares is goodness because it increases
the number of terminator instructions we can handle. This creates many more
opportunities for target specific fast-isel.
llvm-svn: 143079
2011-10-26 23:34:37 +00:00
78127d31f3
Factor a little more code into EmitCmp, which should have been done in the first
...
place. No functional change intended.
llvm-svn: 143078
2011-10-26 23:25:44 +00:00
eafbf3faa9
Use EmitCmp in SelectBranch. No functional change intended.
...
llvm-svn: 143076
2011-10-26 23:17:28 +00:00
59a201950b
Factor out an EmitCmp function that can be used by both SelectCmp and
...
SelectBranch. No functional change intended.
llvm-svn: 143072
2011-10-26 22:47:55 +00:00
b522550ce5
Add a few FIXME comments.
...
llvm-svn: 142299
2011-10-17 22:54:23 +00:00
7753d66468
Switch over to using ARMConstantPoolConstant for global variables, functions,
...
and block addresses.
llvm-svn: 140936
2011-10-01 08:00:54 +00:00
efc761a1eb
ARM fix encoding of VMOV.f32 and VMOV.f64 immediates.
...
Encode the immediate into its 8-bit form as part of isel rather than later,
which simplifies things for mapping the encoding bits, allows the removal
of the custom disassembler decoding hook, makes the operand printer trivial,
and prepares things more cleanly for handling these in the asm parser.
rdar://10211428
llvm-svn: 140834
2011-09-30 00:50:06 +00:00
e7e2aca322
Tidy up a few 80 column violations.
...
llvm-svn: 139636
2011-09-13 20:30:37 +00:00
f3dd6da7a8
Don't fast-isel for atomic load/store; some cases require extra handling missing from fast-isel.
...
llvm-svn: 139044
2011-09-02 22:33:24 +00:00
17847ae757
Fixup for functions that return a bool.
...
llvm-svn: 138918
2011-08-31 23:49:05 +00:00
Chad Rosier