Forgot to remove some output before committing last time. (Instruction fixups
don't actually overflow anywhere in the test suite so far, so I missed it).
To prevent the outliner from screaming "Overflow!" in the event that that
does happen, this commit removes that output.
llvm-svn: 298260
Note that the isl::union_set(isl_ctx,std::string) constructor will
auto-convert the char* to an std::string. Converting a nullptr to
std::string is undefined in C++11 (sect. 21.4.2.9).
llvm-svn: 298259
Otherwise the isl_id NewId which ensures uniqueness of the
created space is unused. None of the tests currently uses an
nameless tuple, so there is not change in what is tested.
llvm-svn: 298258
Summary:
Prepare the way for nested instruction matching support by having actions
like CopyRenderer look up operands in the RuleMatcher rather than a
specific InstructionMatcher. This allows actions to reference any operand
from any matched instruction.
It works by checking the 'shape' of the match and capturing
each matched instruction to a local variable. If the shape is wrong
(not enough operands, leaf nodes where non-leafs are expected, etc.), then
the rule exits early without checking the predicates. Once we've captured
the instructions, we then test the predicates as before (except using the
local variables). If the match is successful, then we render the new
instruction as before using the local variables.
It's not noticable in this patch but by the time we support multiple
instruction matching, this patch will also cause a significant improvement
to readability of the emitted code since
MRI.getVRegDef(I->getOperand(0).getReg()) will simply be MI1 after
emitCxxCaptureStmts().
This isn't quite NFC because I've also fixed a bug that I'm surprised we
haven't encountered yet. It now checks there are at least the expected
number of operands before accessing them with getOperand().
Depends on D30531
Reviewers: t.p.northover, qcolombet, aditya_nandakumar, ab, rovka
Reviewed By: rovka
Subscribers: dberris, kristof.beyls, llvm-commits
Differential Revision: https://reviews.llvm.org/D30535
llvm-svn: 298257
This commit adds a parameter that lets us pass in the calling convention
of the call to CallLowering::lowerCall. This allows us to handle
situations where the calling convetion of the callee is different from
that of the caller.
Differential Revision: https://reviews.llvm.org/D31039
llvm-svn: 298254
This patch fixes two issues:
* Fixed relative links to source files
* Enumeration of lines in source files starts from 1 instead of 0 to
align with .symcov files generated by sancov -symbolize
Patch by Dmitiriy Nikiforov.
Differential Revision: https://reviews.llvm.org/D31038
llvm-svn: 298250
Summary:
ConstantRange class currently has a method getSetSize, which is mostly used to
compare set sizes of two constant ranges (there is only one spot where it's used
in a slightly different scenario). This patch introduces setSizeSmallerThanOf
method, which does such comparison in a more efficient way. In the original
method we have to extend our types to (BitWidth+1), which can result it using
slow case of APInt, extra memory allocations, etc.
The change is supposed to not change any functionality, but it slightly improves
compile time. Here is compile time improvements that I observed on CTMark:
* tramp3d-v4 -2.02%
* pairlocalalign -1.82%
* lencod -1.67%
Reviewers: sanjoy, atrick, pete
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D31104
llvm-svn: 298236
I'm not sure if zeroing VAL before writing pVal is really necessary, but at least one other place did it in code.
But by taking the store out of line, this reduces the opt binary by about 20k on my local x86-64 build.
llvm-svn: 298233
Summary: This Idom check seems unnecessary. The immediate children of a node on the Dominator Tree should always be the IDom of its immediate children in this case.
Reviewers: hfinkel, majnemer, dberlin
Reviewed By: dberlin
Subscribers: dberlin, davide, llvm-commits
Differential Revision: https://reviews.llvm.org/D26954
llvm-svn: 298232
This commit renames all of the safety functionality to be hicpp, adds an appropriate LICENSE.TXT, and updates the documentation accordingly.
llvm-svn: 298229
Summary:
Currently we handle these intrinsics at isel with special patterns. But as they just map to normal logic operations, we should just handle them at lowering. This will expose them to DAG combine optimizations. Right now the kor-sequence test generates a bunch of regclass copies between GR16 and VK16 that the peephole optimizer and/or register coallescing are removing to keep everything in the mask domain. By handling the logic op intrinsics earlier, these copies become bitcasts in the DAG and get removed by DAG combine which seems more robust.
This should help enable my plan to stop copying between K registers and GR8/GR16. The peephole optimizer can't remove a chain of copies between K and GR32 with insert_subreg/extract_subreg present in the chain so the kor-sequence test break. But this patch should dodge the problem entirely.
Reviewers: zvi, delena, RKSimon, igorb
Reviewed By: igorb
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D31056
llvm-svn: 298228
We make the assumption in most of our constant folding code that a fp2int will target an integer of 128-bits or less, calling the APFloat::convertToInteger with only uint64_t[2] of raw bits for the result.
Fuzz testing (PR24662) showed that we don't handle other cases at all, resulting in stack overflows and all sorts of crashes.
This patch uses the APSInt version of APFloat::convertToInteger instead to better handle such cases.
Differential Revision: https://reviews.llvm.org/D31074
llvm-svn: 298226
Folding instructions when selecting can cause them to become dead.
Don't select these dead instructions (if they don't have other side
effects, and don't define physical registers).
Preserve existing tests by adding COPYs.
In some tests, the G_CONSTANT vregs never get constrained to a class:
the only use of the vreg was folded into another instruction, so the
G_CONSTANT, now dead, never gets selected.
llvm-svn: 298224
And remove some redundant bitcast tests.
Also split the test functions themselves: it makes it obvious to see
what's tested where and what isn't, it makes the tests much easier to
read and manually update, and, most importantly, it makes them almost
trivial to update using tooling. Yes, it's obnoxiously verbose, but
said tooling helps upgrade to better MIR syntax whenever available.
llvm-svn: 298222
Summary:
In case we are loading on a phi-load in SimplifyPartiallyRedundantLoad.
Try to phi translate it into incoming values in the predecessors before
we search for available loads.
This needs https://reviews.llvm.org/D30524
Reviewers: davide, sanjoy, efriedma, dberlin, rengolin
Reviewed By: dberlin
Subscribers: junbuml, llvm-commits
Differential Revision: https://reviews.llvm.org/D30543
llvm-svn: 298217
Summary:
Extract FindAvailablePtrLoadStore out of FindAvailableLoadedValue.
Prepare for upcoming change which will do phi-translation for load on
phi pointer in jump threading SimplifyPartiallyRedundantLoad.
This is in preparation for https://reviews.llvm.org/D30543
Reviewers: efriedma, sanjoy, davide, dberlin
Reviewed By: davide
Subscribers: junbuml, davide, llvm-commits
Differential Revision: https://reviews.llvm.org/D30524
llvm-svn: 298216
The comment about there being three different forms that Ptr represents was stale. Also, the opaque value does not need to be exposed (these functions are unused).
llvm-svn: 298215
Summary:
This patch allows us to move away from using __thread on darwin,
which is requiring for building lsan for darwin on ios version 7
and on iossim i386.
Reviewers: kubamracek, kcc
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D29994
llvm-svn: 298214
Summary:
I found that stripDebugInfo was still leaving significant amounts of
debug info due to !llvm.loop that contained DILocation after stripping.
The support for stripping debug info on !llvm.loop added in r293377 only
removes a single DILocation. Enhance that to remove all DILocation from
!llvm.loop.
Reviewers: hfinkel, aprantl, dsanders
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D31117
llvm-svn: 298213
Jessica Paquette