Commit Graph

355 Commits

Author SHA1 Message Date
Jim Grosbach
2a41cad900 Clean up the conditional for handling of sign_extend_inreg based on
whether the extract instructions are available.

rdar://7956878

llvm-svn: 103277
2010-05-07 18:34:55 +00:00
Jim Grosbach
151cd8f159 Cleanup of ARMv7M support. Move hardware divide and Thumb2 extract/pack
instructions to subtarget features and update tests to reflect.
PR5717.

llvm-svn: 103136
2010-05-05 23:44:43 +00:00
Jim Grosbach
92d999001c Add initial support for ARMv7M subtarget and cortex-m3 cpu. Patch by
Jordy <snhjordy@gmail.com>.

Followup patches will add some tests and adjust to use Subtarget features
for the instructions.

llvm-svn: 103119
2010-05-05 20:44:35 +00:00
Evan Cheng
d85631e700 Model CONCAT_VECTORS of two 64-bit values as a REG_SEQUENCE.
llvm-svn: 103104
2010-05-05 18:28:36 +00:00
Dan Gohman
25c1653700 Get rid of the EdgeMapping map. Instead, just check for BasicBlock
changes before doing phi lowering for switches.

llvm-svn: 102809
2010-05-01 00:01:06 +00:00
Dan Gohman
21cea8ac2e Use const qualifiers with TargetLowering. This eliminates several
const_casts, and it reinforces the design of the Target classes being
immutable.

SelectionDAGISel::IsLegalToFold is now a static member function, because
PIC16 uses it in an unconventional way. There is more room for API
cleanup here.

And PIC16's AsmPrinter no longer uses TargetLowering.

llvm-svn: 101635
2010-04-17 15:26:15 +00:00
Dan Gohman
31ae586c74 Move per-function state out of TargetLowering subclasses and into
MachineFunctionInfo subclasses.

llvm-svn: 101634
2010-04-17 14:41:14 +00:00
Bob Wilson
59b70eacad Revise my previous change to ExpandBIT_CONVERT. I hadn't realized that this
may be called when either the source or destination type is i64, and my
change also hadn't fixed the most obvious problem -- assuming that i64 will
only be bitconverted to f64, ignoring the various vector types.
Radar 7873160.

llvm-svn: 101615
2010-04-17 05:30:19 +00:00
Evan Cheng
f7f97b4bbd Use default lowering of DYNAMIC_STACKALLOC. As far as I can tell, ARM isle is doing the right thing and codegen looks correct for both Thumb and Thumb2.
llvm-svn: 101410
2010-04-15 22:20:34 +00:00
Anders Carlsson
47bccf7f28 Fix build.
llvm-svn: 101335
2010-04-15 03:11:28 +00:00
Dan Gohman
bcaf681cde Add const qualifiers to CodeGen's use of LLVM IR constructs.
llvm-svn: 101334
2010-04-15 01:51:59 +00:00
Jim Grosbach
32bb362655 Add -arm-long-calls option to force calls to be indirect. This makes the
kernel linker happier when dealing with kexts.

Radar 7805069

llvm-svn: 101303
2010-04-14 22:28:31 +00:00
Bob Wilson
c05b887c84 Don't custom lower bit converts to ARM VMOVDRRD or VMOVDRR when the operand
does not have a legal type.  The legalizer does not know how to handle those
nodes.  Radar 7854640.

llvm-svn: 101282
2010-04-14 20:45:23 +00:00
Bob Wilson
699bdf7adf Handle a v2f64 formal parameter that is split between registers and memory
such that the entire second half is in memory.  Radar 7855014.

llvm-svn: 101181
2010-04-13 22:03:22 +00:00
Bob Wilson
5202269dc4 Expand SELECT and SELECT_CC for NEON vector types.
Radar 7770501.

llvm-svn: 100568
2010-04-06 22:02:24 +00:00
Mon P Wang
c576ee9040 Reapply address space patch after fixing an issue in MemCopyOptimizer.
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)

llvm-svn: 100304
2010-04-04 03:10:48 +00:00
Mon P Wang
999c1b927b Revert r100191 since it breaks objc in clang
llvm-svn: 100199
2010-04-02 18:43:02 +00:00
Mon P Wang
a972ab8564 Reapply address space patch after fixing an issue in MemCopyOptimizer.
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)

llvm-svn: 100191
2010-04-02 18:04:15 +00:00
Bob Wilson
6f7fd28824 Revert Mon Ping's change 99928, since it broke all the llvm-gcc buildbots.
llvm-svn: 99948
2010-03-30 22:27:04 +00:00
Mon P Wang
7460571381 Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
A update of langref will occur in a subsequent checkin.

llvm-svn: 99928
2010-03-30 20:55:56 +00:00
Jim Grosbach
07607382d8 tweak the arm if conversion heuristic
llvm-svn: 99402
2010-03-24 16:15:14 +00:00
Jim Grosbach
e0874fa02f try being more permissive for if-conversion on ARM V7. see what the nightly
test run permformance numbers say as to whether it helps.

llvm-svn: 99355
2010-03-24 00:03:13 +00:00
Bob Wilson
e4191e719b Revert this change, since it was causing ARM performance regressions.
--- Reverse-merging r98889 into '.':
U    lib/Target/ARM/ARMInstrNEON.td
U    lib/Target/ARM/ARMISelLowering.h
U    lib/Target/ARM/ARMInstrInfo.td
U    lib/Target/ARM/ARMInstrVFP.td
U    lib/Target/ARM/ARMISelLowering.cpp
U    lib/Target/ARM/ARMInstrFormats.td

llvm-svn: 99010
2010-03-19 22:51:32 +00:00
Anton Korobeynikov
f11aa9e7b4 Get rid of target-specific fp <-> int nodes when still I'm here.
llvm-svn: 98889
2010-03-18 22:35:45 +00:00
Anton Korobeynikov
64578d5599 Get rid of target-specific nodes for fp16 <-> fp32 conversion.
llvm-svn: 98888
2010-03-18 22:35:37 +00:00
Bob Wilson
3f2293bc02 Translate "cc" clobber in ARM inline assembly to ARM::CCRRegisterClass.
Radar 7459078.

llvm-svn: 98586
2010-03-15 23:09:18 +00:00
Bill Wendling
bbcaa40227 Now that the default for Darwin platforms is to place the LSDA into the TEXT
section, remove the target-specific code that performs this.

llvm-svn: 98580
2010-03-15 21:09:38 +00:00
Anton Korobeynikov
0a65a37344 Add substarget feature for FP16
llvm-svn: 98503
2010-03-14 18:42:38 +00:00
Anton Korobeynikov
d7fece38fc Add codegen support for FP16 on ARM
llvm-svn: 98502
2010-03-14 18:42:31 +00:00
Bill Wendling
9481181d40 The ARM EH experiment worked!
Place the LSDA into the TEXT section for ARM platforms. This involves making the
encoding indirect, pcrel, and sdata4 instead of an absolute pointer. The
references to the type infos are then non-lazy pointers. Revision 98019 changed
the encoding of non-lazy pointers to add the symbol to the non-lazy pointer
definition if it's a local symbol (otherwise, it's external and set to '0' so
that the loader can adjust it to the real value). This paved the way for this
change to work on ARM.

llvm-svn: 98068
2010-03-09 18:31:07 +00:00
Bill Wendling
46ffefc66c This is part of an LLC-beta test used to test <rdar://problem/6804645>. Please
bear with the awful code. It won't last in its current state beyond tonight.

llvm-svn: 98040
2010-03-09 02:46:12 +00:00
Bill Wendling
78c5b7a76d Remove dead parameter passing.
llvm-svn: 97536
2010-03-02 01:55:18 +00:00
Bob Wilson
ba8ac74fd9 Check for comparisons of +/- zero when optimizing less-than-or-equal and
greater-than-or-equal SELECT_CCs to NEON vmin/vmax instructions.  This is
only allowed when UnsafeFPMath is set or when at least one of the operands
is known to be nonzero.

llvm-svn: 97065
2010-02-24 22:15:53 +00:00
Jim Grosbach
6ad4bcb0da LowerCall() should always do getCopyFromReg() to reference the stack pointer.
Machine instruction selection is much happier when operands are in virtual
registers.

llvm-svn: 97012
2010-02-24 01:43:03 +00:00
Bob Wilson
c6c13a3515 Use NEON vmin/vmax instructions for floating-point selects.
Radar 7461718.

llvm-svn: 96572
2010-02-18 06:05:53 +00:00
David Greene
0d0149f5ac Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96230
2010-02-15 16:55:24 +00:00
Jim Grosbach
a570d05228 tighten up eh.setjmp sequence a bit.
llvm-svn: 95603
2010-02-08 23:22:00 +00:00
Evan Cheng
6f36a083ef Revert 95130.
llvm-svn: 95160
2010-02-02 23:55:14 +00:00
Evan Cheng
c1b0116ff1 Pass callsite return type to TargetLowering::LowerCall and use that to check sibcall eligibility.
llvm-svn: 95130
2010-02-02 21:29:10 +00:00
Anton Korobeynikov
25df248382 Fix a gross typo: ARMv6+ may or may not support unaligned memory operations.
Even if they are suported by the core, they can be disabled
(this is just a configuration bit inside some register).

Allow unaligned memops on darwin and conservatively disallow them otherwise.

llvm-svn: 94889
2010-01-30 14:08:12 +00:00
Evan Cheng
67a69dd2ed Eliminate target hook IsEligibleForTailCallOptimization.
Target independent isel should always pass along the "tail call" property. Change
target hook LowerCall's parameter "isTailCall" into a refernce. If the target
decides it's impossible to honor the tail call request, it should set isTailCall
to false to make target independent isel happy.

llvm-svn: 94626
2010-01-27 00:07:07 +00:00
Bob Wilson
6a4491b8c7 Wrap some comments to 80 columns.
llvm-svn: 93940
2010-01-19 22:56:26 +00:00
Jim Grosbach
8546ec9c14 Patch by David Conrad:
"On ARMv6T2 this turns cttz into rbit, clz instead of the 4 instruction
 sequence it is now."

llvm-svn: 93758
2010-01-18 19:58:49 +00:00
Jim Grosbach
029fbd984b Name change for consistency. No functional change.
llvm-svn: 93480
2010-01-15 00:22:18 +00:00
Jim Grosbach
d0860d6e02 EmitAtomicCmpSwap() custome inserter needs to delete the MI passed in. EmitAtomicBinary() already does this.
llvm-svn: 93479
2010-01-15 00:18:34 +00:00
Jakob Stoklund Olesen
0ca14e4498 ARM "l" constraint for inline asm means R0-R7, also for Thumb2.
This is consistent with llvm-gcc's arm/constraints.md.

Certain instructions (e.g. CBZ, CBNZ) require a low register, even in Thumb2
mode.

llvm-svn: 93436
2010-01-14 18:19:56 +00:00
Jakob Stoklund Olesen
fcf91ee403 Fix pasto
llvm-svn: 93342
2010-01-13 19:54:39 +00:00
Bill Wendling
919b7aab2e Add more plumbing. This time in the LowerArguments and "get" functions which
return partial registers. This affected the back-end lowering code some.

Also patch up some places I missed before in the "get" functions.

llvm-svn: 91880
2009-12-22 02:10:19 +00:00
Evan Cheng
db4d798619 Delete the instruction just before the function terminates for consistency sake.
llvm-svn: 91836
2009-12-21 19:53:39 +00:00
Rafael Espindola
b73b4fd30e Fix libstdc++ build on ARM linux and part of PR5770.
MI was not being used but it was also not being deleted, so it was kept in the garbage list. The memory itself was freed once the function code gen was done.

Once in a while the codegen of another function would create an instruction on the same address. Adding it to the garbage group would work once, but when another pointer was added it would cause an assert as "Cache" was about to be pushed to Ts.

For a patch that make us detect problems like this earlier, take a look at

http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20091214/092758.html

With that patch we assert as soon and the new instruction is added to the garbage set.

llvm-svn: 91691
2009-12-18 16:59:39 +00:00