We may need to change the way profile counter values are stored, but
saturation is the wrong thing to do. Just remove it for now.
Patch by Alastair Murray!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166938 91177308-0d34-0410-b5e6-96231b3b80d8
The LTO Internalize pass is hiding symbols needed by the bugpoint-passes
plug-in. We need to add a flag to control whether Internalize should be run.
This is a temporary workaround to make these tests pass in the meantime.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166239 91177308-0d34-0410-b5e6-96231b3b80d8
When building with LTO, the internalize pass is hiding some global symbols
that are necessary for the JIT unittests. It seems like that may be a bug in
LTO to do that by default, but until that gets fixed, this change makes sure
that we export the necessary symbols for the tests to pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166220 91177308-0d34-0410-b5e6-96231b3b80d8
This reverts commit 165776. The plug-in uses this symbol; it does not
define it. It needs to be exported from bugpoint itself, not from the plug-in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166207 91177308-0d34-0410-b5e6-96231b3b80d8
The TargetTransform changes are breaking LTO bootstraps of clang. I am
working with Nadav to figure out the problem, but I am reverting it for now
to get our buildbots working.
This reverts svn commits: 165665 165669 165670 165786 165787 165997
and I have also reverted clang svn 165741
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166168 91177308-0d34-0410-b5e6-96231b3b80d8
This is a temporary hack until Bill's project to record command line options
in the LLVM IR is ready. Clang currently sets a default CPU but that isn't
recorded anywhere and it doesn't get used in the final LTO compilation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165809 91177308-0d34-0410-b5e6-96231b3b80d8
Without this change, when the estimated cost for inlining a function with
an "alwaysinline" attribute was lower than the inlining threshold, the
getInlineCost function was returning that estimated cost rather than the
special InlineCost::AlwaysInlineCost value. That is fine in the normal
inlining case, but it can fail when the inliner considers the opportunity
cost of inlining into an internal or linkonce-odr function. It may decide
not to inline the always-inline function in that case. The fix here is just
to make getInlineCost always return the special value for always-inline
functions. I ran into this building clang with libc++. Tablegen failed to
link because of an always-inline function that was not inlined. I have been
unable to reduce the testcase down to a reasonable size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165367 91177308-0d34-0410-b5e6-96231b3b80d8
I also moved the SDKROOT setting into the make flags, since clearing it from
the environment isn't good enough to override a setting on the make command
line. That hasn't been a problem but it could be, and it's good to be
consistent with the way UNIVERSAL_SDK_PATH is handled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164565 91177308-0d34-0410-b5e6-96231b3b80d8
Rationale: For each preprocessor macro, either the definedness is what's
meaningful, or the value is what's meaningful, or both. If definedness is
meaningful, we should use #ifdef. If the value is meaningful, we should use
and #ifdef interchangeably for the same macro, seems ugly to me, even if
undefined macros are zero if used.
This also has the benefit that including an LLVM header doesn't prevent
you from compiling with -Wundef -Werror.
Patch by John Garvin!
<rdar://problem/12189979>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163148 91177308-0d34-0410-b5e6-96231b3b80d8
If an allocation has a must-alias relation to the access pointer, we treat it
as a Def. Otherwise, without this check, the code here was just skipping over
the allocation call and ignoring it. I noticed this by inspection and don't
have a specific testcase that it breaks, but it seems like we need to treat
a may-alias allocation as a Clobber.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163127 91177308-0d34-0410-b5e6-96231b3b80d8
This code used to only handle malloc-like calls, which do not read memory.
r158919 changed it to check isNoAliasFn(), which includes strdup-like and
realloc-like calls, but it was not checking for dependencies on the memory
read by those calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163106 91177308-0d34-0410-b5e6-96231b3b80d8
We've switched to a 3-component version numbering scheme for Apple releases,
and with this scheme, the final number is the one most relevant for setting
LLVM_MINOR_VERSION. <rdar://problem/12071459>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161645 91177308-0d34-0410-b5e6-96231b3b80d8
An unsigned value converted to floating-point will always be greater than
a negative constant. Unfortunately InstCombine reversed the check so that
unsigned values were being optimized to always be greater than all positive
floating-point constants. <rdar://problem/12029145>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161452 91177308-0d34-0410-b5e6-96231b3b80d8
This patch is mostly just refactoring a bunch of copy-and-pasted code, but
it also adds a check that the call instructions are readnone or readonly.
That check was already present for sin, cos, sqrt, log2, and exp2 calls, but
it was missing for the rest of the builtins being handled in this code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161282 91177308-0d34-0410-b5e6-96231b3b80d8
The previous change caused fast isel to not attempt handling any calls to
builtin functions. That included things like "printf" and caused some
noticable regressions in compile time. I wanted to avoid having fast isel
keep a separate list of functions that had to be kept in sync with what the
code in SelectionDAGBuilder.cpp was handling. I've resolved that here by
moving the list into TargetLibraryInfo. This is somewhat redundant in
SelectionDAGBuilder but it will ensure that we keep things consistent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161263 91177308-0d34-0410-b5e6-96231b3b80d8
I noticed that SelectionDAGBuilder::visitCall was missing a check for memcmp
in TargetLibraryInfo, so that it would use custom code for memcmp calls even
with -fno-builtin. I also had to add a new -disable-simplify-libcalls option
to llc so that I could write a test for this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161262 91177308-0d34-0410-b5e6-96231b3b80d8
Fast isel doesn't currently have support for translating builtin function
calls to target instructions. For embedded environments where the library
functions are not available, this is a matter of correctness and not
just optimization. Most of this patch is just arranging to make the
TargetLibraryInfo available in fast isel. <rdar://problem/12008746>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161232 91177308-0d34-0410-b5e6-96231b3b80d8
This just provides a way to look up a LibFunc::Func enum value for a
function name. Alphabetize the enums and function names so we can use a
binary search.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161231 91177308-0d34-0410-b5e6-96231b3b80d8
This is still a work in progress but I believe it is currently good enough
to fix PR13122 "Need unit test driver for codegen IR passes". For example,
you can run llc with -stop-after=loop-reduce to have it dump out the IR after
running LSR. Serializing machine-level IR is not yet supported but we have
some patches in progress for that.
The plan is to serialize the IR to a YAML file, containing separate sections
for the LLVM IR, machine-level IR, and whatever other info is needed. Chad
suggested that we stash the stop-after pass in the YAML file and use that
instead of the start-after option to figure out where to restart the
compilation. I think that's a great idea, but since it's not implemented yet
I put the -start-after option into this patch for testing purposes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159570 91177308-0d34-0410-b5e6-96231b3b80d8
This makes it possible to just use a zero value to represent "no pass", so
the phony NoPassID global variable is no longer needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159568 91177308-0d34-0410-b5e6-96231b3b80d8
This is a preliminary step toward having TargetPassConfig be able to
start and stop the compilation at specified passes for unit testing
and debugging. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159567 91177308-0d34-0410-b5e6-96231b3b80d8
Besides adding the new insertPass function, this patch uses it to
enhance the existing -print-machineinstrs so that the MachineInstrs
after a specific pass can be printed.
Patch by Bin Zeng!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157655 91177308-0d34-0410-b5e6-96231b3b80d8
For the Family 6 switch in sys::getHostCPUName, an unrecognized model was
reported as "i686". That's a really bad default since it means that new
CPUs will be treated as if they can only use 32-bit code. This just looks
at the cpuid extended feature flag for 64 bit support, and if that is set,
it uses a default x86-64 cpu. Similar logic is already used for the Family
15 code. <rdar://problem/11314502>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156486 91177308-0d34-0410-b5e6-96231b3b80d8
My previous change to install llvm-config-host for cross-builds resulted
in that file being installed even when the normal llvm-config was not
installed, e.g., when building the install-clang target. Daniel suggested
this alternative, which solves the immediate problem and also avoids the gunk
in the top-level makefile.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156448 91177308-0d34-0410-b5e6-96231b3b80d8
ARM BUILD_VECTORs created after type legalization cannot use i8 or i16
operands, since those types are not legal. Instead use i32 operands, which
will be implicitly truncated by the BUILD_VECTOR to match the element type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155824 91177308-0d34-0410-b5e6-96231b3b80d8
Now that llvm-config is a binary instead of a script the version installed
during a cross compiled build cannot be run from the host. When cross
compiling, install a separate llvm-config-host that will run on the host.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155164 91177308-0d34-0410-b5e6-96231b3b80d8
The tLDRr instruction with the last register operand set to the zero register
prints in assembly as if no register was specified, and the assembler encodes
it as a tLDRi instruction with a zero immediate. With the integrated assembler,
that zero register gets emitted as "r0", so we get "ldr rx, [ry, r0]" which
is broken. Emit the instruction as tLDRi with a zero immediate. I don't
know if there's a good way to write a testcase for this. Suggestions welcome.
Opportunities for follow-up work:
1) The asm printer should complain if a non-optional register operand is set
to the zero register, instead of silently dropping it.
2) The integrated assembler should complain in the same situation, instead of
silently emitting the operand as "r0".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154261 91177308-0d34-0410-b5e6-96231b3b80d8
svn r145378 inadvertently changed the destination for the Embedded target
in the makefile. Add a "/Developer" suffix to DSTROOT to compensate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153980 91177308-0d34-0410-b5e6-96231b3b80d8
So far all of configure tests have been run against the default SDK and
architecture, regardless of what is actually being built. We've gotten
lucky until now. <rdar://problem/11112479>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153972 91177308-0d34-0410-b5e6-96231b3b80d8
ARMBaseRegisterInfo::canRealignStack was checking for variable-sized objects
but not for stack adjustments around calls. Use hasReservedCallFrame() to
check for both. The hasBasePointer function was already correctly checking
both conditions, so the effect of this was that a base pointer would be used
without checking whether the base pointer register could be reserved. I don't
have a small testcase for this.
<rdar://problem/11075906>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153110 91177308-0d34-0410-b5e6-96231b3b80d8
ARMFrameLowering::hasReservedCallFrame is already checking for variable
sized objects, so there's no point in checking it twice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153109 91177308-0d34-0410-b5e6-96231b3b80d8
This new function provides a way to get the Mac OS X version number from
either generic "darwin" triples of macosx triples.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149438 91177308-0d34-0410-b5e6-96231b3b80d8
We have patterns for vector sext and zext operations but were missing
anyext. Without those patterns, codegen will fail when the selection DAG
has any_extend nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148568 91177308-0d34-0410-b5e6-96231b3b80d8
My change r146949 added register clobbers to the eh_sjlj_dispatchsetup pseudo
instruction, but on Thumb1 some of those registers cannot be used. This
caused massive failures on the testsuite when compiling for Thumb1. While
fixing that, I noticed that the eh_sjlj_setjmp instruction has a "nofp"
variant, and I realized that dispatchsetup needs the same thing, so I have
added that as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147204 91177308-0d34-0410-b5e6-96231b3b80d8
tblgen has been renamed to llvm-tblgen so this command has been failing,
and it's no longer needed because llvm-tblgen is already installed by default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147187 91177308-0d34-0410-b5e6-96231b3b80d8
We used to rely on the *eh_sjlj_setjmp instructions to mark that a function
with setjmp/longjmp exception handling clobbers all the registers. But with
the recent reorganization of ARM EH, those eh_sjlj_setjmp instructions are
expanded away earlier, before PEI can see them to determine what registers to
save and restore. Mark the dispatchsetup instruction in the same way, since
that instruction cannot be expanded early. This also more accurately reflects
when the registers are clobbered.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146949 91177308-0d34-0410-b5e6-96231b3b80d8
These modifiers simply select either the low or high D subregister of a Neon
Q register. I've also removed the unimplemented 'p' modifier, which turns out
to be a bit different than the comment here suggests and as far as I can tell
was only intended for internal use in Apple's version of gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146417 91177308-0d34-0410-b5e6-96231b3b80d8
When I did this before it broke a buildbot that was testing that target, but
we've removed that buildbot now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145519 91177308-0d34-0410-b5e6-96231b3b80d8
Some files installed by clang are not relevant for general users and we'd like
to be able to install them to a different location. This adds a new
--with-internal-prefix configure option and a corresponding PROJ_internal_prefix
makefile variable, which defaults to the standard prefix. A tool makefile
can specify that it should be installed to this internal prefix by defining
INTERNAL_TOOL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145234 91177308-0d34-0410-b5e6-96231b3b80d8
There may be many invokes that share one landing pad, and the previous code
would record the landing pad once for each invoke. Besides the wasted
effort, a pair of volatile loads gets inserted every time the landing pad is
processed. The rest of the code can get optimized away when a landing pad
is processed repeatedly, but the volatile loads remain, resulting in code like:
LBB35_18:
Ltmp483:
ldr r2, [r7, #-72]
ldr r2, [r7, #-68]
ldr r2, [r7, #-72]
ldr r2, [r7, #-68]
ldr r2, [r7, #-72]
ldr r2, [r7, #-68]
ldr r2, [r7, #-72]
ldr r2, [r7, #-68]
ldr r2, [r7, #-72]
ldr r2, [r7, #-68]
ldr r2, [r7, #-72]
ldr r2, [r7, #-68]
ldr r2, [r7, #-72]
ldr r2, [r7, #-68]
ldr r2, [r7, #-72]
ldr r2, [r7, #-68]
ldr r4, [r7, #-72]
ldr r2, [r7, #-68]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144787 91177308-0d34-0410-b5e6-96231b3b80d8
This same basic code was in the older version of the SjLj exception handling,
but it was removed in the recent revisions to that code. It needs to be there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144782 91177308-0d34-0410-b5e6-96231b3b80d8
The EmitBasePointerRecalculation function has 2 problems, one minor and one
fatal. The minor problem is that it inserts the code at the setjmp
instead of in the dispatch block. The fatal problem is that at the point
where this code runs, we don't know whether there will be a base pointer,
so the entire function is a no-op. The base pointer recalculation needs to
be handled as it was before, by inserting a pseudo instruction that gets
expanded late.
Most of the support for the old approach is still here, but it no longer
has any connection to the eh_sjlj_dispatchsetup intrinsic. Clean up the
parts related to the intrinsic and just generate the pseudo instruction
directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144781 91177308-0d34-0410-b5e6-96231b3b80d8
svn r139159 caused SelectionDAG::getConstant() to promote BUILD_VECTOR operands
with illegal types, even before type legalization. For this testcase, that led
to one BUILD_VECTOR with i16 operands and another with promoted i32 operands,
which triggered the assertion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142370 91177308-0d34-0410-b5e6-96231b3b80d8
This was only needed to locate llvm-gcc's installation directory when clang
falls back to run llvm-gcc for i386 kexts. As of clang svn r140187, we're
now just searching paths with several different Darwin versions on either
side of the current version, so this is no longer needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140188 91177308-0d34-0410-b5e6-96231b3b80d8
I don't currently have a good testcase for this; will try to get one
tomorrow. <rdar://problem/10032939>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138794 91177308-0d34-0410-b5e6-96231b3b80d8
It turns out that the use of "__extension__" in these macros was disabling
the expected "incompatible pointer" warnings, so these type checks were not
doing anything anyway. They introduced a serious bug by evaluating some
macro arguments twice, which is a big problem for arguments with side effects.
I'll have to find another way to get the right type checking. Radar 9947657.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137680 91177308-0d34-0410-b5e6-96231b3b80d8
Apparently we never added code to expand these pseudo instructions, and in
over a year, no one has noticed. Our register allocator must be awesome!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137551 91177308-0d34-0410-b5e6-96231b3b80d8
When this variable is set, "uname -r" will return its value instead of the
real OS version. Make this affect LLVM's triple for consistency.
<rdar://problem/9919167>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137111 91177308-0d34-0410-b5e6-96231b3b80d8
According to Intel Application Note 485, this value is used for
"Intel Core i7 and Intel Xeon processor". Just include it with the other
"corei7-avx" entries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134750 91177308-0d34-0410-b5e6-96231b3b80d8
This tightens up checking for overflow in alloca sizes, based on feedback
from Duncan and John about the change in r132926.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134749 91177308-0d34-0410-b5e6-96231b3b80d8
Sorry, this was a bad idea. Within clang these builtins are in a separate
"ARM" namespace, but the actual builtin names should clearly distinguish that
they are target specific.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133832 91177308-0d34-0410-b5e6-96231b3b80d8
Bob Wilson