https://github.com/rnk closed https://github.com/llvm/llvm-project/pull/134930
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Author: Reid Kleckner
Date: 2025-04-26T09:17:56-07:00
New Revision: ccdd55c518277d749eff878ffcb5ca3de55c2a60
URL:
https://github.com/llvm/llvm-project/commit/ccdd55c518277d749eff878ffcb5ca3de55c2a60
DIFF:
https://github.com/llvm/llvm-project/commit/ccdd55c518277d749eff878ffcb5ca3de55c2a60.diff
Author: Reid Kleckner
Date: 2025-04-29T11:27:58-07:00
New Revision: 743c32eb8195c248c699c61ffbac141947b8e6ab
URL:
https://github.com/llvm/llvm-project/commit/743c32eb8195c248c699c61ffbac141947b8e6ab
DIFF:
https://github.com/llvm/llvm-project/commit/743c32eb8195c248c699c61ffbac141947b8e6ab.diff
rnk wrote:
I attempted to repro on my macbook, but it doesn't reproduce. This test doesn't
seem high value, and I thin kthe right next step is to disable it to green the
bots before debugging it.
https://github.com/llvm/llvm-project/pull/134196
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rnk wrote:
Are the `CodeGenTest.TestNonAlterTest` failures still an issue? I don't see
that failure on any bots. I haven't gotten any reports.
https://github.com/llvm/llvm-project/pull/134196
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https://github.com/rnk created https://github.com/llvm/llvm-project/pull/138360
This reverts commit 83ff9d4a34b1e579dd809759d13b70b8837f0cde.
Don't change the builtin signature of _mm_prefetch this time.
>From 7da648bdd03a2fce7ab214f0425efb3a1ec1f4fe Mon Sep 17 00:00:00 2001
Fr
https://github.com/rnk approved this pull request.
https://github.com/llvm/llvm-project/pull/138251
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rnk wrote:
> follow what we did for _m_prefetchw, but it seems the same idea was tried
> there but that was also reverted for what seems to be the same exact problem.
> See https://github.com/llvm/llvm-project/pull/115099 and revert
> [here](https://github.com/llvm/llvm-project/commit/83ff9d4a
@@ -138,6 +142,12 @@ let Attributes = [Const, NoThrow,
RequiredVectorWidth<256>], Features = "avx" in
}
}
+// PRFCHW
+let Features = "prfchw", Header = "x86intrin.h", Attributes = [NoThrow, Const]
in {
+ def _m_prefetch : X86LibBuiltin<"void(void *)">;
rn
https://github.com/rnk approved this pull request.
Thanks, looks good to me!
I wanted to add llvm-cxxfilt to the test to confirm these all demnagle to
something readable, but I see it doesn't work on Microsoft symbols today, which
is unfortunate. The code I want is on github in @nico's
https:
https://github.com/rnk approved this pull request.
Thanks, I think this is a good direction.
https://github.com/llvm/llvm-project/pull/128222
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https://github.com/rnk approved this pull request.
https://github.com/llvm/llvm-project/pull/115052
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rnk wrote:
If you take the two PRs together, we're going to implement the indirection
logic at both the frontend and backend level. If we do it in the backend, I
think it's technically necessary to do it in the frontend, but it is consistent
with how we handle all other types. I'd like to see
@@ -6519,6 +6519,13 @@ def warn_signed_bitfield_enum_conversion : Warning<
InGroup, DefaultIgnore;
def note_change_bitfield_sign : Note<
"consider making the bit-field type %select{unsigned|signed}0">;
+def warn_ms_bitfield_mismatched_storage_packing : Warning<
+ "bit-fiel
https://github.com/rnk approved this pull request.
Thanks! I approved it.
https://github.com/llvm/llvm-project/pull/126240
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https://github.com/rnk edited https://github.com/llvm/llvm-project/pull/127653
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https://github.com/rnk approved this pull request.
I think correctness comes first, so this prioritization makes sense.
https://github.com/llvm/llvm-project/pull/127653
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@@ -855,6 +855,16 @@ void CodeGenFunction::EmitCoroutineBody(const
CoroutineBodyStmt &S) {
// Create parameter copies. We do it before creating a promise, since an
// evolution of coroutine TS may allow promise constructor to observe
// parameter copies.
+for (
@@ -190,3 +210,38 @@ method
some_class::good_coroutine_calls_custom_constructor(float) {
// CHECK: invoke void
@_ZNSt16coroutine_traitsIJ6methodR10some_classfEE12promise_typeC1ES2_f(ptr
{{[^,]*}} %__promise, ptr noundef nonnull align 1 dereferenceable(1) %{{.+}},
float
c
https://github.com/rnk approved this pull request.
Thanks, I spent a while thinking if this was correct, and then convincing
myself that we ignore the relevant calling conventions on the appropriate
platforms (we ignore `__fastcall` on x64 and ignore `__vectorcall` on Win ARM).
https://github.
@@ -4769,31 +4769,32 @@ ExprResult Sema::CheckOSLogFormatStringArg(Expr *Arg) {
/// Check that the user is calling the appropriate va_start builtin for the
/// target and calling convention.
static bool checkVAStartABI(Sema &S, unsigned BuiltinID, Expr *Fn) {
- const llvm::Tri
rnk wrote:
This is an observable behavior change, so it should have a test. There's a test
for this header at clang/test/Headers/ms-intrins.cpp that you can extend. You
probably need to add a new RUN line that adds `-mrtm` or some other
micro-architectural feature so that rtmintrin.h declares
https://github.com/rnk approved this pull request.
Thanks, I'm happy with this patch.
https://github.com/llvm/llvm-project/pull/124834
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https://github.com/rnk approved this pull request.
Thanks!
https://github.com/llvm/llvm-project/pull/126952
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https://github.com/rnk commented:
In the issue (#127499) you pointed out that this issue applies to the MSVC ABI
where all parameters are destroyed in the callee. Is it reasonable to construct
the analogous test case in that environment? I tried to do this locally, but
can't for unrelated buil
rnk wrote:
Re: sroa/mem2reg, that's a valid concern with Hans's intrinsic approach.
> So it's not really a question of "improving" the existing algorithm; we need
> markers in the IR, like coro_outside_frame, and the algorithm should be based
> on that.
To check my understanding, by explicit
"vise" is not a verb, but the external facing text has been
updated.
>From 0c416d9af99af4c8983800faa4d253c545c3f0bb Mon Sep 17 00:00:00 2001
From: Reid Kleckner
Date: Mon, 24 Feb 2025 22:50:12 +
Subject: [PATCH] Generalize creduce-clang-crash.py script to look for cvise
cvise r
rnk wrote:
Thanks for the updates, I think this is almost done.
@zmodem , this will probably have some impact on Chrome code size and will
probably churn many crash stack traces. I think it's safe to rely on all the
existing automated testing, but this is a high-risk change to keep in mind if
https://github.com/rnk edited https://github.com/llvm/llvm-project/pull/126240
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@@ -2657,7 +2657,10 @@ class VFTableBuilder {
MethodVFTableLocation Loc(MI.VBTableIndex, WhichVFPtr.getVBaseWithVPtr(),
WhichVFPtr.NonVirtualOffset, MI.VFTableIndex);
if (const CXXDestructorDecl *DD = dyn_cast(MD)) {
-MethodVF
@@ -575,6 +576,12 @@ class CGCXXABI {
QualType ElementType, llvm::Value *&NumElements,
llvm::Value *&AllocPtr, CharUnits &CookieSize);
+ /// Reads the array cookie associated with the given pointer,
+ /// that sho
@@ -7919,3 +7919,38 @@ void CodeGenModule::moveLazyEmissionStates(CodeGenModule
*NewBuilder) {
NewBuilder->ABI->MangleCtx = std::move(ABI->MangleCtx);
}
+
+bool CodeGenModule::classNeedsVectorDestructor(const CXXRecordDecl *RD) {
+ CXXDestructorDecl *Dtor = RD->getDestruct
@@ -7919,3 +7919,38 @@ void CodeGenModule::moveLazyEmissionStates(CodeGenModule
*NewBuilder) {
NewBuilder->ABI->MangleCtx = std::move(ABI->MangleCtx);
}
+
+bool CodeGenModule::classNeedsVectorDestructor(const CXXRecordDecl *RD) {
+ CXXDestructorDecl *Dtor = RD->getDestruct
https://github.com/rnk commented:
Hm, these comments didn't post. They may be stale. I will post them and revisit
them.
https://github.com/llvm/llvm-project/pull/126240
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https://github.com/rnk commented:
I resolved two conversations, but there are two actionable comments.
https://github.com/llvm/llvm-project/pull/126240
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rom fe6604dc283a454c212b8e2cd21d94df96fb05d4 Mon Sep 17 00:00:00 2001
From: Reid Kleckner
Date: Wed, 2 Apr 2025 18:34:05 +
Subject: [PATCH] Reapply "[cmake] Refactor clang unittest cmake"
This reapplies 5ffd9bdb50b57 (#133545) with fixes.
The BUILD_SHARED_LIBS=ON build was fixed by adding
Markus =?utf-8?q?Gschoßmann?= ,
Markus =?utf-8?q?Gschoßmann?=
Message-ID:
In-Reply-To:
@@ -0,0 +1,16 @@
+// RUN: %clang_cc1 -triple x86_64-none-linux-gnu -emit-llvm
-debug-info-kind=limited %s -o - | FileCheck %s
rnk wrote:
Thanks, I looked at the files, and
consolidating unit tests
into fewer binaries, but seems like a good refactoring in its own right.
>From e662d8d9483fdf82030ddec6969bc89ae2404060 Mon Sep 17 00:00:00 2001
From: Reid Kleckner
Date: Fri, 28 Mar 2025 16:49:09 -0700
Subject: [PATCH] [cmake] Refactor clang unittest cmake
Pass all
https://github.com/rnk updated https://github.com/llvm/llvm-project/pull/133545
>From e662d8d9483fdf82030ddec6969bc89ae2404060 Mon Sep 17 00:00:00 2001
From: Reid Kleckner
Date: Fri, 28 Mar 2025 16:49:09 -0700
Subject: [PATCH 1/2] [cmake] Refactor clang unittest cmake
Pass all the dependenc
it.
>From 528be44ebae8ea5cd7f23c51ad11c314a73f152b Mon Sep 17 00:00:00 2001
From: Reid Kleckner
Date: Fri, 28 Mar 2025 22:11:05 -0700
Subject: [PATCH] [clang] Merge gtest binaries into AllClangUnitTests
This reduces the size of the clang/unittests build directory by 64% and
my overall build dir size by 5%. Stat
@@ -3897,6 +3897,13 @@ void CodeGenFunction::EmitFunctionEpilog(const
CGFunctionInfo &FI,
return;
}
+ // If there is no valid insert point, we won't emit a return.
+ // The insert point could be null if we have already emitted a return
+ // (e.g. if musttail)
+ if (
@@ -0,0 +1,115 @@
+//===--- RunOnNewStack.cpp - Crash Recovery
---===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM
Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Ap
rnk wrote:
We have internal reports of incorrect mangling substitutions after updating to
537b6541e8067d7ef7aa38791989fca6303b7fd from
799e9053641a6478d3144866a97737b37b87c260, and this change seems like the likely
culprit because it's touching the Itanium mangling code. We'll see if that can
@@ -138,6 +138,12 @@ let Attributes = [Const, NoThrow,
RequiredVectorWidth<256>], Features = "avx" in
}
}
+// PRFCHW
+let Features = "prfchw", Header = "intrin.h", Attributes = [NoThrow, Const] in
{
rnk wrote:
Looks like I actually had a pending change to
https://github.com/rnk updated https://github.com/llvm/llvm-project/pull/138360
Rate limit · GitHub
body {
background-color: #f6f8fa;
color: #24292e;
font-family: -apple-system,BlinkMacSystemFont,Segoe
UI,Helvetica,Arial,sans-serif,
https://github.com/rnk updated https://github.com/llvm/llvm-project/pull/138360
Rate limit · GitHub
body {
background-color: #f6f8fa;
color: #24292e;
font-family: -apple-system,BlinkMacSystemFont,Segoe
UI,Helvetica,Arial,sans-serif,
https://github.com/rnk closed https://github.com/llvm/llvm-project/pull/138613
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@@ -304,7 +304,7 @@ getCodeModel(const CodeGenOptions &CodeGenOpts) {
.Case("kernel", llvm::CodeModel::Kernel)
.Case("medium", llvm::CodeModel::Medium)
.Case("large", llvm::CodeModel::Large)
-
rnk wrote:
Sorry to hear about the issue. I think the way this is supposed to work is that
the clang frontend target ABIInfo is supposed to carefully construct struct
types that cause the backend to pass the C struct type correctly in registers
and memory. See for example clang/lib/CodeGen/Tar
@@ -1825,6 +1825,11 @@ class Sema final : public SemaBase {
/// Set of no-builtin functions listed by \#pragma function.
llvm::SmallSetVector MSFunctionNoBuiltins;
+ /// Map of BuiltinIDs to source locations that have #pragma intrinsic calls
+ /// that refer to them.
+
https://github.com/rnk commented:
Thanks!
https://github.com/llvm/llvm-project/pull/138205
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https://github.com/rnk edited https://github.com/llvm/llvm-project/pull/139614
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@@ -710,4 +710,17 @@ void AnnotateIgnoreWritesEnd(const char *file, int line);
#define LLVM_PREFERRED_TYPE(T)
#endif
+/// \macro LLVM_VIRTUAL_ANCHOR_FUNCTION
+/// This macro is used to adhere to LLVM's policy that each class with a vtable
+/// must have at least one out-of-lin
https://github.com/rnk commented:
I thought we'd have more anchors, honestly. Maybe these are just the overriding
ones.
https://github.com/llvm/llvm-project/pull/139614
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rnk wrote:
> Or we think no one else does this anchor business, and in that case... why
> are we doing it?
Anchoring debug information out of a header and into a .cpp file can be a
powerful optimization. I added a key method to Sema in
586f65d31f32ca6bc8cfdb8a4f61bee5057bf6c8 and it resulted
rnk wrote:
> I think silencing the warning is better than suggesting a default case, which
> may not be considered good practice.
I'm not sure, I think our perspectives as compiler people might be a bit off
base. We're always forming closed algebraic sum types, like variants, AST
nodes, that
https://github.com/rnk edited https://github.com/llvm/llvm-project/pull/138562
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https://github.com/rnk commented:
I'm OK with this, but I feel like this is creating scope creep. Now we have a
special Wdeprecated-declarations carveouts for switches, but if you unpack the
switch into if / else chain comparisons, you get deprecation warnings. Should
we disable deprecation wa
@@ -6767,6 +6767,9 @@ class Sema final : public SemaBase {
};
std::optional DelayedDefaultInitializationContext;
+/// Whether evaluating an expression for a switch case label.
rnk wrote:
supernit: pack it with the contextual bools above, for both
https://github.com/rnk approved this pull request.
Nice, looks good, thanks for implementing this!
https://github.com/llvm/llvm-project/pull/138205
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https://github.com/rnk approved this pull request.
This looks good, but I'd give it another day to give other reviewers an
opportunity to comment.
https://github.com/llvm/llvm-project/pull/139614
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https://github.com/rnk approved this pull request.
Thanks!
https://github.com/llvm/llvm-project/pull/138562
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@@ -6009,6 +6009,8 @@ def note_not_found_by_two_phase_lookup : Note<"%0 should
be declared prior to th
def err_undeclared_use : Error<"use of undeclared %0">;
def warn_deprecated : Warning<"%0 is deprecated">,
InGroup;
+def warn_deprecated_switch_case : Warning<"%0 is depr
rnk wrote:
(This is mostly written wearing my "Googler" hat, not the clang area team lead
hat)
There's been a lot of discussion of what the exact use case is. I think it's
helpful to share the context that Google essentially uses Clang header modules
to wrap generated proto headers, and this
https://github.com/rnk approved this pull request.
Wow. Thanks for debugging it! I assumed this had more to do with intrin0.h than
the namespaces in the libc++ string header.
https://github.com/llvm/llvm-project/pull/142019
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https://github.com/rnk updated https://github.com/llvm/llvm-project/pull/144428
>From afb050103754e6b4656c68da8ddfb6b1a4e03e5d Mon Sep 17 00:00:00 2001
From: Reid Kleckner
Date: Mon, 16 Jun 2025 20:08:12 +
Subject: [PATCH 1/5] [clang] Register all LLVM targets in AllClangUnitTest
m
@@ -117,6 +117,7 @@ get_property(LINK_LIBS GLOBAL PROPERTY
CLANG_UNITTEST_LINK_LIBS)
get_property(LLVM_COMPONENTS GLOBAL PROPERTY CLANG_UNITTEST_LLVM_COMPONENTS)
add_distinct_clang_unittest(AllClangUnitTests
${SRCS}
+ AllClangUnitTests.cpp
rnk wrote:
Yeah,
rnk wrote:
> The entries in the IP2State table contain byte offsets within the instruction
> stream of the function. The Windows ABI requires that these offsets are
> aligned to instruction boundaries; they are not permitted to point to a byte
> that is not the first byte of an instruction.
>
https://github.com/rnk approved this pull request.
Thanks, go for it.
This doesn't match the `-gen-x-target-def` pattern used for ARM, AArch64, and
RISCV, but it's target-generic, which seems nice.
https://github.com/llvm/llvm-project/pull/144594
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00:00:00 2001
From: Reid Kleckner
Date: Wed, 25 Jun 2025 06:31:07 -0600
Subject: [PATCH 1/2] Reapply "[Clang,debuginfo] added vtt parameter in
destructor DISubroutineType (#130674)"
This reverts commit cd826d6e840ed33ad88458c862da5f9fcc6e908c.
---
clang/lib/CodeGen/CGDebugInfo.cp
https://github.com/rnk edited https://github.com/llvm/llvm-project/pull/145697
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https://github.com/rnk approved this pull request.
@erichkeane, thanks for looking into it, no worries if nobody gets back. I
think we should go ahead and land this in the mean time.
https://github.com/llvm/llvm-project/pull/143664
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rnk wrote:
If we've had fixes available for years, I think backporting them would be the
right call, but this seems like it might be a release-note-worthy change.
https://github.com/llvm/llvm-project/pull/143034
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rnk wrote:
> To be clear you mean modify Clang's intrin.h to include arm_acle.h when on
> supported targets
Yep!
https://github.com/llvm/llvm-project/pull/140910
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rnk wrote:
> Would it make sense to have a custom main for AllClangUnitTests and register
> all targets, just like clang driver does?
That sounds reasonable.
I toyed with the idea of putting the registration into a static initializer,
but it raises the question of where you put it. Putting it
rnk wrote:
Internally, we discovered that this patch breaks Boost as used by MySQL. I
don't have a full external reproducer at the moment and I don't know whether
the code is valid or not, but I wanted to give a heads up that we may need to
revisit this. This seems like the kind of incompatibi
https://github.com/rnk approved this pull request.
https://github.com/llvm/llvm-project/pull/144407
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@@ -0,0 +1,24 @@
+//===- clang/unittests/AllClangUnitTests.cpp
--===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM
Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apa
https://github.com/rnk updated https://github.com/llvm/llvm-project/pull/144428
>From afb050103754e6b4656c68da8ddfb6b1a4e03e5d Mon Sep 17 00:00:00 2001
From: Reid Kleckner
Date: Mon, 16 Jun 2025 20:08:12 +
Subject: [PATCH 1/3] [clang] Register all LLVM targets in AllClangUnitTest
m
https://github.com/rnk edited https://github.com/llvm/llvm-project/pull/144428
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https://github.com/rnk updated https://github.com/llvm/llvm-project/pull/144428
>From afb050103754e6b4656c68da8ddfb6b1a4e03e5d Mon Sep 17 00:00:00 2001
From: Reid Kleckner
Date: Mon, 16 Jun 2025 20:08:12 +
Subject: [PATCH 1/4] [clang] Register all LLVM targets in AllClangUnitTest
m
@@ -0,0 +1,24 @@
+//===- clang/unittests/AllClangUnitTests.cpp
--===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM
Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apa
@@ -117,6 +117,7 @@ get_property(LINK_LIBS GLOBAL PROPERTY
CLANG_UNITTEST_LINK_LIBS)
get_property(LLVM_COMPONENTS GLOBAL PROPERTY CLANG_UNITTEST_LLVM_COMPONENTS)
add_distinct_clang_unittest(AllClangUnitTests
${SRCS}
+ AllClangUnitTests.cpp
rnk wrote:
I spo
@@ -0,0 +1,191 @@
+//===- EmitTargetFeature.cpp - Generate CPU Targer feature ===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM
Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH
@@ -0,0 +1,191 @@
+//===- EmitTargetFeature.cpp - Generate CPU Targer feature ===//
rnk wrote:
typo
https://github.com/llvm/llvm-project/pull/144594
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https://github.com/rnk updated https://github.com/llvm/llvm-project/pull/138187
>From 7e23666e3366101d635648faf95aaf7245643b4e Mon Sep 17 00:00:00 2001
From: Reid Kleckner
Date: Wed, 30 Apr 2025 16:32:32 -0700
Subject: [PATCH 1/4] [llvm] Enable LLVM_LINK_LLVM_DYLIB by default on
non-Wind
@@ -20,7 +20,6 @@ target_link_libraries(CoreTests
LLVMBOLTRewrite
LLVMBOLTProfile
LLVMBOLTUtils
- LLVMTestingSupport
)
rnk wrote:
This removal here was interesting. Bolt doesn't support the LLVM dylib build,
and it tries to disable linking the LLVM
https://github.com/rnk approved this pull request.
Yep, feel free to reland this.
https://github.com/llvm/llvm-project/pull/140910
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rnk wrote:
Erich, is there a good point-of-contact at nvidia who can review CUDA intrinsic
header changes in the future?
https://github.com/llvm/llvm-project/pull/143664
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@@ -8,6 +8,12 @@ if (HAS_WERROR_GLOBAL_CTORS AND NOT
LLVM_HAS_NOGLOBAL_CTOR_MUTEX)
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror=global-constructors")
endif()
+set(LLVM_TARGET_DEFINITIONS ${LLVM_MAIN_SRC_DIR}/lib/Target/PowerPC/PPC.td)
+
+tablegen(LLVM PPCGenSubtargetInfo
Author: Reid Kleckner
Date: 2025-06-12T19:56:41Z
New Revision: cbf27bf711c08c34185f05ca5edbfa61bd3786e2
URL:
https://github.com/llvm/llvm-project/commit/cbf27bf711c08c34185f05ca5edbfa61bd3786e2
DIFF:
https://github.com/llvm/llvm-project/commit/cbf27bf711c08c34185f05ca5edbfa61bd3786e2.diff
LOG
rnk wrote:
cc @mgschossmann
https://github.com/llvm/llvm-project/pull/145697
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rnk wrote:
> Do I understand correctly that, as a result of this commit, the SemaTests
> target no longer exists, and to work on / run the tests that it used to
> include (such as HeuristicResolverTest.cpp), I have to build the
> ClangdUnitTests target, which requires building 1000+ test sourc
https://github.com/rnk updated https://github.com/llvm/llvm-project/pull/138187
>From 7e23666e3366101d635648faf95aaf7245643b4e Mon Sep 17 00:00:00 2001
From: Reid Kleckner
Date: Wed, 30 Apr 2025 16:32:32 -0700
Subject: [PATCH 1/5] [llvm] Enable LLVM_LINK_LLVM_DYLIB by default on
non-Wind
https://github.com/rnk commented:
I had some pending draft comments from back when this was active.
My recollection is that this is actually quite difficult and I am not likely to
have time in the near future to work on it.
https://github.com/llvm/llvm-project/pull/122197
@@ -389,14 +389,28 @@ void CGRecordLowering::accumulateFields(bool
isNonVirtualBaseType) {
// Empty fields have no storage.
++Field;
} else {
- // Use base subobject layout for the potentially-overlapping field,
- // as it is done in RecordLayoutBuild
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