Johnny Chen
1cd323de0a
Add and modify some tests.
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llvm-svn: 128476
2011-03-29 19:08:52 +00:00
Owen Anderson
d73041e884
Get rid of the non-writeback versions VLDMDB and VSTMDB, which don't actually exist.
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llvm-svn: 128461
2011-03-29 16:45:53 +00:00
Cameron Zwarich
d49e32233c
Do some simple copy propagation through integer loads and stores when promoting
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vector types. This helps a lot with inlined functions when using the ARM soft
float ABI. Fixes <rdar://problem/9184212>.
llvm-svn: 128453
2011-03-29 05:19:52 +00:00
Rafael Espindola
b103223cdd
Reduce test case.
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llvm-svn: 128445
2011-03-29 02:18:54 +00:00
Evan Cheng
5bcaef9cc9
Optimizing (zext A + zext B) * C, to (VMULL A, C) + (VMULL B, C) during
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isel lowering to fold the zero-extend's and take advantage of no-stall
back to back vmul + vmla:
vmull q0, d4, d6
vmlal q0, d5, d6
is faster than
vaddl q0, d4, d5
vmovl q1, d6
vmul q0, q0, q1
This allows us to vmull + vmlal for:
f = vmull_u8( vget_high_u8(s), c);
f = vmlal_u8(f, vget_low_u8(s), c);
rdar://9197392
llvm-svn: 128444
2011-03-29 01:56:09 +00:00
Bill Wendling
cb8447ad52
In some cases, the "fail BB dominator" may be null after the BB was split (and
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becomes reachable when before it wasn't). Check to make sure that it's not null
before trying to use it.
llvm-svn: 128434
2011-03-28 23:02:18 +00:00
Daniel Dunbar
5d8c7d0d36
MC: Add support for disabling "temporary label" behavior. Useful for debugging
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on Darwin.
llvm-svn: 128430
2011-03-28 22:49:15 +00:00
Johnny Chen
8b921cebc6
Fix ARM disassembly for PLD/PLDW/PLI which suffers from code rot and add some test cases.
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Add comments to ThumbDisassemblerCore.h for recent change made for t2PLD disassembly.
llvm-svn: 128417
2011-03-28 18:41:58 +00:00
Nick Lewycky
fd664969bc
Teach the transformation that moves binary operators around selects to preserve
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the subclass optional data.
llvm-svn: 128388
2011-03-27 19:51:23 +00:00
Frits van Bommel
c234349939
Constant folding support for calls to umul.with.overflow(), basically identical to the smul.with.overflow() code.
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llvm-svn: 128379
2011-03-27 14:26:13 +00:00
Nick Lewycky
27e865c948
Add a small missed optimization: turn X == C ? X : Y into X == C ? C : Y. This
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removes one use of X which helps it pass the many hasOneUse() checks.
In my analysis, this turns up very often where X = A >>exact B and that can't be
simplified unless X has one use (except by increasing the lifetime of A which is
generally a performance loss).
llvm-svn: 128373
2011-03-27 07:30:57 +00:00
Cameron Zwarich
09bd1deda3
Fix a typo and add a test.
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llvm-svn: 128331
2011-03-26 04:58:50 +00:00
Jakob Stoklund Olesen
446412de55
Collect and coalesce DBG_VALUE instructions before emitting the function.
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Correctly terminate the range of register DBG_VALUEs when the register is
clobbered or when the basic block ends.
The code is now ready to deal with variables that are sometimes in a register
and sometimes on the stack. We just need to teach emitDebugLoc to say 'stack
slot'.
llvm-svn: 128327
2011-03-26 02:19:36 +00:00
Johnny Chen
61713b9c16
Fixed the t2PLD and friends disassembly and add two test cases.
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llvm-svn: 128322
2011-03-26 01:32:48 +00:00
Eric Christopher
b51c27cd9a
Fix the bfi handling for or (and a mask) (and b mask). We need the two
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masks to match inversely for the code as is to work. For the example given
we actually want:
bfi r0, r2, #1 , #1
not #0 , however, given the way the pattern is written it's not possible
at the moment.
Fixes rdar://9177502
llvm-svn: 128320
2011-03-26 01:21:03 +00:00
Bill Wendling
72b390743d
PR9561: A store with a negative offset (via GEP) could erroniously say that it
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completely overlaps a previous store, thus mistakenly deleting that store. Check
for this condition.
llvm-svn: 128319
2011-03-26 01:20:37 +00:00
Johnny Chen
7238c61ff7
Add test for A8.6.246 UMULL to both arm-tests.txt amd thumb-tests.txt.
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llvm-svn: 128306
2011-03-25 23:02:58 +00:00
Johnny Chen
4c59e0a556
Add two test cases t2SMLABT and t2SMMULR for DisassembleThumb2Mul().
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llvm-svn: 128305
2011-03-25 22:43:28 +00:00
Johnny Chen
75c4627aea
Fix DisassembleThumb2DPReg()'s handling of RegClass. Cannot hardcode GPRRegClassID.
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Also add some test cases.
rdar://problem/9189829
llvm-svn: 128304
2011-03-25 22:19:07 +00:00
Johnny Chen
5b840e19ef
DisassembleThumb2LdSt() did not handle t2LDRs correctly with respect to RegClass. Add two test cases.
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rdar://problem/9182892
llvm-svn: 128299
2011-03-25 19:35:37 +00:00
Johnny Chen
f16635a8f0
A8.6.226 TBB, TBH:
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Add two test cases.
llvm-svn: 128295
2011-03-25 18:40:21 +00:00
Johnny Chen
c69c7b19ae
Modify DisassembleThumb2LdStEx() to be more robust/correct in light of recent change to
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t2LDREX/t2STREX instructions. Add two test cases.
llvm-svn: 128293
2011-03-25 18:29:49 +00:00
Daniel Dunbar
1cbd2c6c88
MC: Improve some diagnostics on uses of '.' pseudo-symbol.
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llvm-svn: 128289
2011-03-25 17:47:17 +00:00
Johnny Chen
f19366e37b
Instruction formats of SWP/SWPB were changed from LdStExFrm to MiscFrm. Modify the disassembler to handle that.
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rdar://problem/9184053
llvm-svn: 128285
2011-03-25 17:31:16 +00:00
Jakob Stoklund Olesen
ab0501221b
Emit less labels for debug info and stop emitting .loc directives for DBG_VALUEs.
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The .dot directives don't need labels, that is a leftover from when we created
line number info manually.
Instructions following a DBG_VALUE can share its label since the DBG_VALUE
doesn't produce any code.
llvm-svn: 128284
2011-03-25 17:20:59 +00:00
Johnny Chen
583b7cb25e
Also need to handle invalid imod values for CPS2p.
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rdar://problem/9186136
llvm-svn: 128283
2011-03-25 17:03:12 +00:00
Johnny Chen
1f29c2775d
Modify the wrong logic in the assert of DisassembleThumb2LdStDual() (the register classes were changed),
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modify the comment to be up-to-date, and add a test case for A8.6.66 LDRD (immediate) Encoding T1.
llvm-svn: 128252
2011-03-25 01:09:48 +00:00
Johnny Chen
a4f73530a5
delegate the disassembly of t2ADR to the more generic t2ADDri12/t2SUBri12 instructions, and add a test case for that.
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llvm-svn: 128249
2011-03-25 00:17:42 +00:00
Johnny Chen
4a55a733b8
The opcode names ("tLDM", "tLDM_UPD") used for conflict resolution have been stale since
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the change to ("tLDMIA", "tLDMIA_UPD"). Update the conflict resolution code and add
test cases for that.
llvm-svn: 128247
2011-03-24 23:42:31 +00:00
Johnny Chen
6345e6a882
The ARM disassembler was confused with the 16-bit tSTMIA instruction.
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According to A8.6.189 STM/STMIA/STMEA (Encoding T1), there's only tSTMIA_UPD available.
Ignore tSTMIA for the decoder emitter and add a test case for that.
llvm-svn: 128246
2011-03-24 23:21:14 +00:00
Devang Patel
c6ed54c434
Move test in x86 specific area.
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llvm-svn: 128245
2011-03-24 22:39:09 +00:00
Johnny Chen
9672fe0126
Handle the added VBICiv*i* NEON instructions, too.
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llvm-svn: 128243
2011-03-24 22:04:39 +00:00
Eric Christopher
d0fd06aeda
Testcase for llvm-gcc commit r128230.
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llvm-svn: 128242
2011-03-24 21:59:03 +00:00
Johnny Chen
1fc160fa19
T2 Load/Store Multiple:
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These instructions were changed to not embed the addressing mode within the MC instructions
We also need to update the corresponding assert stmt. Also add a test case.
llvm-svn: 128240
2011-03-24 21:36:56 +00:00
Benjamin Kramer
a9c4afdeec
Plug a leak in the arm disassembler and put the tests back.
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llvm-svn: 128238
2011-03-24 21:14:28 +00:00
Bruno Cardoso Lopes
a5de5df6d8
Add asm parsing support w/ testcases for strex/ldrex family of instructions
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llvm-svn: 128236
2011-03-24 21:04:58 +00:00
Johnny Chen
ef99d9b9eb
Remove these two test files as they cause llvm-i686-linux-vg_leak build to fail 'test-llvm'.
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These two are test cases which should result in 'invalid instruction encoding' from running llvm-mc -disassemble.
llvm-svn: 128235
2011-03-24 20:56:23 +00:00
Johnny Chen
ae5d27987a
ADR was added with the wrong encoding for inst{24-21}, and the ARM decoder was fooled.
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Set the encoding bits to {0,?,?,0}, not 0. Plus delegate the disassembly of ADR to
the more generic ADDri/SUBri instructions, and add a test case for that.
llvm-svn: 128234
2011-03-24 20:42:48 +00:00
Devang Patel
4909f41ec5
Keep track of directory namd and fIx regression caused by Rafael's patch r119613.
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A better approach would be to move source id handling inside MC.
llvm-svn: 128233
2011-03-24 20:30:50 +00:00
Johnny Chen
f6655e82b3
The r118201 added support for VORR (immediate). Update ARMDisassemblerCore.cpp to disassemble the
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VORRiv*i* instructions properly within the DisassembleN1RegModImmFrm() function. Add a test case.
llvm-svn: 128226
2011-03-24 18:40:38 +00:00
Johnny Chen
154393018f
Add comments to the handling of opcode CPS3p to reject invalid instruction encoding,
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a test case of invalid CPS3p encoding and one for invalid VLDMSDB due to regs out of range.
llvm-svn: 128220
2011-03-24 17:04:22 +00:00
NAKAMURA Takumi
cabdaca3c7
Target/X86: [PR8777][PR8778] Tweak alloca/chkstk for Windows targets.
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FIXME: Some cleanups would be needed.
llvm-svn: 128206
2011-03-24 07:07:00 +00:00
Cameron Zwarich
4d1c5fe9ae
Do early taildup of ret in CodeGenPrepare for potential tail calls that have a
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void return type. This fixes PR9487.
llvm-svn: 128197
2011-03-24 04:52:10 +00:00
Johnny Chen
404fb6c07f
Load/Store Multiple:
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These instructions were changed to not embed the addressing mode within the MC instructions
We also need to update the corresponding assert stmt. Also add two test cases.
llvm-svn: 128191
2011-03-24 01:40:42 +00:00
Johnny Chen
0d55ce3734
STRT and STRBT was incorrectly tagged as IndexModeNone during the refactorings (r119821).
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We now tag them as IndexModePost.
llvm-svn: 128189
2011-03-24 01:07:26 +00:00
Johnny Chen
f8507c96f1
The r128103 fix to cope with the removal of addressing modes from the MC instructions
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were incomplete. The assert stmt needs to be updated and the operand index incrment is wrong.
Fix the bad logic and add some sanity checking to detect bad instruction encoding;
and add a test case.
llvm-svn: 128186
2011-03-24 00:28:38 +00:00
Devang Patel
2cea16e9bb
Enable GlobalMerge on darwin.
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llvm-svn: 128183
2011-03-23 23:34:19 +00:00
Andrew Trick
80893981d6
Revert r128175.
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I'm backing this out for the second time. It was supposed to be fixed by r128164, but the mingw self-host must be defeating the fix.
llvm-svn: 128181
2011-03-23 23:11:02 +00:00
Evan Cheng
6e799c3c58
Cmp peephole optimization isn't always safe for signed arithmetics.
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int tries = INT_MAX;
while (tries > 0) {
tries--;
}
The check should be:
subs r4, #1
cmp r4, #0
bgt LBB0_1
The subs can set the overflow V bit when r4 is INT_MAX+1 (which loop
canonicalization apparently does in this case). cmp #0 would have cleared
it while not changing the N and Z bits. Since BGT is dependent on the V
bit, i.e. (N == V) && !Z, it is not safe to eliminate the cmp #0 .
rdar://9172742
llvm-svn: 128179
2011-03-23 22:52:04 +00:00
Eli Friedman
76fcfaab12
PR9535: add support for splitting and scalarizing vector ISD::FP_ROUND.
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Also cleaning up some duplicated code while I'm here.
llvm-svn: 128176
2011-03-23 22:18:48 +00:00