The target hooks are getting out of hand. What does it mean to run
before or after regalloc anyway? Allowing either Pass* or AnalysisID
pass identification should make it much easier for targets to use the
substitutePass and insertPass APIs, and create less need for badly
named target hooks.
llvm-svn: 179140
The GNU line marker directive was sharing code with the #line directive, but some of the warnings/errors were reporting as #line directive diagnostics in both cases.
Previously:
#line 11foo1 ==> "#line directive requires a simple digit sequence"
# 11foo1 ==> "#line directive requires a simple digit sequence"
Now, we get:
#line 11foo1 ==> "#line directive requires a simple digit sequence"
# 11foo1 ==> "GNU line marker directive requires a simple digit sequence"
llvm-svn: 179139
fact be defined and used in another TU.
Reshuffle some test cases because we suppress -Wunused-variable after we've
emitted an error.
This fixes PR15558.
llvm-svn: 179138
if we didn't want to put in a CXXConstructorDecl. This
prevents malformed classes (i.e., classes with regular C
functions as members) from being generated from type
information (and fixes a crash in the test suite).
<rdar://problem/13550765>
llvm-svn: 179136
Modifier 'D' is to use the second word of a double integer.
We had previously implemented the pure register varient of
the modifier and this patch implements the memory reference.
#include "stdio.h"
int b[8] = {0,1,2,3,4,5,6,7};
void main()
{
int i;
// The first word. Notice, no 'D'
{asm (
"lw %0,%1;"
: "=r" (i)
: "m" (*(b+4))
);}
printf("%d\n",i);
// The second word
{asm (
"lw %0,%D1;"
: "=r" (i)
: "m" (*(b+4))
);}
printf("%d\n",i);
}
llvm-svn: 179135
This enables us to form predicated branches (which are the same conditional
branches we had before) and also a larger set of predicated returns (including
instructions like bdnzlr which is a conditional return and loop-counter
decrement all in one).
At the moment, if conversion does not capture all possible opportunities. A
simple example is provided in early-ret2.ll, where if conversion forms one
predicated return, and then the PPCEarlyReturn pass picks up the other one. So,
at least for now, we'll keep both mechanisms.
llvm-svn: 179134
These run lines originally tested that the fix-its were properly applied.
Originally, the fixits were attached to warnings and were applied by -fixit.
Now, the fixits are attached to notes, so nothing happens. These run lines
still manage to pass since Clang will produce an empty output which gets piped
back to Clang. Then Clang produces no error on an empty input.
llvm-svn: 179131
This transform adds the override specifier to methods that overrides virtual
methods from a base class that don't already have this specifier.
Author: Philip Dunstan <phil@phildunstan.com>
llvm-svn: 179127
isVirtual - matches CXXMethodDecl nodes for virtual methods
isOverride - matches CXXMethodDecl nodes for methods that override virtual methods from a base class.
Author: Philip Dunstan <phil@philipdunstan.com>
llvm-svn: 179126
and mips16 on a per function basis.
Because this patch is somewhat involved I have provide an overview of the
key pieces of it.
The patch is written so as to not change the behavior of the non mixed
mode. We have tested this a lot but it is something new to switch subtargets
so we don't want any chance of regression in the mainline compiler until
we have more confidence in this.
Mips32/64 are very different from Mip16 as is the case of ARM vs Thumb1.
For that reason there are derived versions of the register info, frame info,
instruction info and instruction selection classes.
Now we register three separate passes for instruction selection.
One which is used to switch subtargets (MipsModuleISelDAGToDAG.cpp) and then
one for each of the current subtargets (Mips16ISelDAGToDAG.cpp and
MipsSEISelDAGToDAG.cpp).
When the ModuleISel pass runs, it determines if there is a need to switch
subtargets and if so, the owning pointers in MipsTargetMachine are
appropriately changed.
When 16Isel or SEIsel is run, they will return immediately without doing
any work if the current subtarget mode does not apply to them.
In addition, MipsAsmPrinter needs to be reset on a function basis.
The pass BasicTargetTransformInfo is substituted with a null pass since the
pass is immutable and really needs to be a function pass for it to be
used with changing subtargets. This will be fixed in a follow on patch.
llvm-svn: 179118
This commit adds the infrastructure for performing bottom-up SLP vectorization (and other optimizations) on parallel computations.
The infrastructure has three potential users:
1. The loop vectorizer needs to be able to vectorize AOS data structures such as (sum += A[i] + A[i+1]).
2. The BB-vectorizer needs this infrastructure for bottom-up SLP vectorization, because bottom-up vectorization is faster to compute.
3. A loop-roller needs to be able to analyze consecutive chains and roll them into a loop, in order to reduce code size. A loop roller does not need to create vector instructions, and this infrastructure separates the chain analysis from the vectorization.
This patch also includes a simple (100 LOC) bottom up SLP vectorizer that uses the infrastructure, and can vectorize this code:
void SAXPY(int *x, int *y, int a, int i) {
x[i] = a * x[i] + y[i];
x[i+1] = a * x[i+1] + y[i+1];
x[i+2] = a * x[i+2] + y[i+2];
x[i+3] = a * x[i+3] + y[i+3];
}
llvm-svn: 179117
parse an identifier. Otherwise, parseExpression may parse multiple tokens,
which makes it impossible to properly compute an immediate displacement.
An example of such a case is the source operand (i.e., [Symbol + ImmDisp]) in
the below example:
__asm mov eax, [Symbol + ImmDisp]
The existing test cases exercise this patch.
rdar://13611297
llvm-svn: 179115
therefore not at all) of the pc or statement list. We also don't
need to emit the compilation dir so save so space and time
and don't bother.
Fix up the testcase accordingly and verify that we don't emit
the attributes or the items that they use.
llvm-svn: 179114
Some general cleanup and only scan the end of a BB for branches (once we're
done with the terminators and debug values, then there should not be any other
branches). These address post-commit review suggestions by Bill Schmidt.
No functionality change intended.
llvm-svn: 179112
rather than deriving the StringRef from the Start and End SMLocs.
Using the Start and End SMLocs works fine for operands such as [Symbol], but
not for operands such as [Symbol + ImmDisp]. All existing test cases that
reference a variable exercise this patch.
rdar://13602265
llvm-svn: 179109
when result type of protocol property and getter method
differ by fixing a more serious problem. When a forward
protocol declaration comes between its definition and
its use in class protocol list, the forward protocol
ast was being used in building the protocol list.
// rdar://12522752
llvm-svn: 179108
This pattern occurs in SROA output due to the way vector arguments are lowered
on ARM.
The testcase from PR15525 now compiles into this, which is better than the code
we got with the old scalarrepl:
_Store:
ldr.w r9, [sp]
vmov d17, r3, r9
vmov d16, r1, r2
vst1.8 {d16, d17}, [r0]
bx lr
Differential Revision: http://llvm-reviews.chandlerc.com/D647
llvm-svn: 179106
On PowerPC, non-vector loads and stores have r+i forms; however, in functions
with large stack frames these were not being used to access slots far from the
stack pointer because such slots were out of range for the signed 16-bit
immediate offset field. This increases register pressure because we need a
separate register for each offset (when the r+r form is used). By enabling
virtual base registers, we can deal with large stack frames without unduly
increasing register pressure.
llvm-svn: 179105
This happens whenever there is a c-style explicit cast to nullptr not
surrounded by parentheses following a return statement.
- Added a white space before nullptr if the character before is alphanumeric
when replacing the null pointer expression.
- Simplified visitor
- Addes tests
llvm-svn: 179103
Some translations here are not 1x1 because there are grep|grep
chains that are non-trivial to implement in terms of FileCheck features. I
made an effort for the tests to remain as similar as possible; do let me know
if you notice anything fishy. The good news are that some buggy tests were
fixed (grep | not grep - a bug waiting to happen).
llvm-svn: 179102
Summary:
Some codebases use these kinds of macros in functions, e.g. Chromium's
IPC_BEGIN_MESSAGE_MAP, IPC_BEGIN_MESSAGE_HANDLER, etc.
Reviewers: djasper, klimek
Reviewed By: klimek
CC: cfe-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D645
llvm-svn: 179099
This adds an emacs editor integration (thanks to Ami Fischman). Also
pulls out the style into a variable for the vi integration and just
uses clang-formats defaults style in clang-format-diff.py.
llvm-svn: 179098
Argyrios Kyrtzidis