Summary:
The patch D29014 has added the new ISD::FREEZE and can deal with the
integer.
The patch D76980 has added SoftenFloatRes_FREEZE for float point.
But we still lack of expand for ppc_fp128, this will cause assertion for
some cases.
This patch is to support freeze expand for ppc_fp128.
Reviewed By: efriedma
Differential Revision: https://reviews.llvm.org/D78278
Summary:
In SjLj exception mode, the old landingpad BB will create a new landingpad BB and use indirect branch jump to the old landingpad BB in lowering.
So we should add 2 endbr for this exception model.
Reviewers: hjl.tools, craig.topper, annita.zhang, LuoYuanke, pengfei, efriedma
Reviewed By: LuoYuanke
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D77124
Summary:
When we encode an instruction, we need to know the number of bytes being
emitted to determine the fixups in `X86MCCodeEmitter::emitImmediate`.
There are only two callers for `emitImmediate`: `emitMemModRMByte` and
`encodeInstruction`.
Before this patch, we kept track of the current byte being emitted
by passing a reference parameter `CurByte` across all the `emit*`
funtions, which is ugly and unnecessary. For example, we don't have any
fixups when emitting prefixes, so we don't need to track this value.
In this patch, we use `StartByte` to record the initial status of the
streamer, and use `OS.tell()` to get the current status of the streamer
when we need to know the number of bytes being emitted. On one hand,
this eliminates the parameter `CurByte` for most `emit*` functions, on
the other hand, this make things clear: Only pass the parameter when we
really need it.
Reviewers: craig.topper, pengfei, MaskRay
Reviewed By: craig.topper, MaskRay
Subscribers: hiraditya, llvm-commits, annita.zhang
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D78419
Drop visitCallInst/visitInvokeInst since the generic implementation
will delegate to visitCallBase. They appear to be from a time
before visitCallSite existed in the InstVisitor system.
Differential Revision: https://reviews.llvm.org/D78448
As suggested on D76788, this switches the LVI implementation to
return Optional<ValueLatticeElement> from various methods, instead
of passing in a ValueLatticeElement reference and returning a boolean.
Differential Revision: https://reviews.llvm.org/D78383
Some includes are not required and forward declarations can be used
instead. This also exposed a few places that were not directly including
required files.
Most of the includes in LoopUtils.h are not required in the header and
they can be replaced by forward declarations.
Unfortunately includes of TargetTransformInfo.h and IVDescriptors.h pull
in a bunch of additional things, but there is no easy way to get rid of
them at the moment I think.
sched_getaffinity (Linux specific) has been available
* in glibc since 2002-08-08 (commit 972e719e8154eec5f543b027e2a08dfa285d55d5)
* in musl since the initial check-in.
gcc may warn here because X86ISD::NodeType is specified as "unsigned",
but ISD::NodeType is a naked C enum (although passed as an "unsigned"
throughout SDAG).
getFauxShuffle attempts to combine INSERT_VECTOR_ELT(TRUNCATE/EXTEND(EXTRACT_VECTOR_ELT(x))) patterns into a target shuffle chain.
PR45604 identified an issue where the scalar was truncated to a size smaller than the destination vector element and then zero extended back, which requires the upper bits to be zero'd which we don't currently do.
To avoid the bug I've added an early out in these truncation cases, a future commit should allow us to handle this by inserting the necessary SM_SentinelZero padding.
This is an enhancement to D77895 to avoid another
round-trip from XMM->GPR->XMM. This time we handle
the case of starting/ending with an f64 and casting
to signed i32 as the intermediate value.
It's a bit more involved than I initially assumed
because we need to use target-specific opcodes to
represent the non-standard cast ops.
Differential Revision: https://reviews.llvm.org/D78362
bitcast (shuf V, MaskC) --> shuf (bitcast V), MaskC'
This is the widen shuffle elements enhancement to D76727.
It builds on the analysis and simplifications in
D77881 and rG6a7e958a423e.
The phase ordering tests show that we can simplify inverse
shuffles across a binop in both directions (widen/narrow or
narrow/widen) now.
There's another potential transform visible in some of the
remaining TODOs - move a bitcasted operand of a shuffle
after the shuffle.
Differential Revision: https://reviews.llvm.org/D78371
Reduce X86Subtarget.h/MCCodeEmitter.h/TargetMachine.h includes to forward declarations
Add explicit X86Subtarget.h/TargetMachine.h includes to X86AsmPrinter.cpp/X86MCInstLower.cpp
Remove unused MCSymbol forward declaration
We were only including MachineInstr.h for DebugLoc.h. This exposes an implicit include dependency in BTFDebug.h where I've had to add the MachineInstr.h include.
This makes it easier to extend the merge options in the future and also
reduces the risk of accidentally setting a wrong option.
Reviewers: efriedma, nikic, reames, davide
Reviewed By: efriedma
Differential Revision: https://reviews.llvm.org/D78368
LLJIT::defineAbsolute did not mangle its Name argument, which is inconsistent
with the behavior of other LLJIT methods (e.g. lookup). Since it is currently
unused anyway, this commit replaces it with a generic 'define' convenience
method for adding MaterializationUnits to the main JITDylib. This simplifies
use of the generic absoluteSymbols function (as well as the symbolAlias,
reexports and other functions that generate MaterializationUnits) with LLJIT.
First-order recurrences require special treatment when they are live-out;
such treatment is provided by fixFirstOrderRecurrence(), so they should be
included in AllowedExit set.
(Should probably have been included originally in D16197.)
Fixes PR45526: AllowedExit set is used by prepareToFoldTailByMasking() to
check whether the treatment for live-outs also holds when folding the tail,
which is not (yet) the case for first-order recurrences.
Differential Revision: https://reviews.llvm.org/D78210
When running IPSCCP on a module with many small functions, memory
usage is dominated by PredicateInfo, which is a huge structure
(partially due to some unfortunate nested SmallVector use). However,
most of it is actually only temporary state needed to build
predicate info, and does not need to be retained after initial
construction.
This patch factors out the predicate building logic and state
into a separate PrediceInfoBuilder, with the extra bonus that
it does not need to live in the header anymore.
Differential Revision: https://reviews.llvm.org/D78326
We previously clamped the trailing zero count to 31 bits. And
then clamped the final alignment to MaximumAlignment which is
1 << 29.
This patch simplifies this to just clamp the trailing zero to
29 using MaxAlignmentExponent.
I was looking into changing this function to use Align/MaybeAlign
and noticed this.
Differential Revision: https://reviews.llvm.org/D78418
Kang Zhang