pcc wrote:
Done
https://github.com/llvm/llvm-project/pull/151649
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pcc wrote:
> I will test it again. Thanks for letting me know.On Thu, Aug 14, 2025 at
> 23:14, Peter Collingbourne ***@***.***> wrote: Reopened #99260. — Reply to
> this email directly, view it on GitHub, or unsubscribe. You are receiving
> this because you are on a team that was mentioned.Mes
https://github.com/pcc updated https://github.com/llvm/llvm-project/pull/133531
>From 96e7da9a083888683c2ba00d97f886fd748ea10b Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Wed, 9 Apr 2025 20:30:57 -0700
Subject: [PATCH 1/2] Undo unnecessary change
Created using spr 1.3.6-beta.1
---
https://github.com/pcc updated https://github.com/llvm/llvm-project/pull/133533
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>From e728f3444624a5f47f0af84c21fb3a584f3e05b7 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Fri, 1 Aug 2025 17:27:41 -0700
Subject: [PATCH] Add verifier check
Created using spr 1.3.6-beta.1
---
llvm/lib
https://github.com/pcc updated https://github.com/llvm/llvm-project/pull/133531
>From 96e7da9a083888683c2ba00d97f886fd748ea10b Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Wed, 9 Apr 2025 20:30:57 -0700
Subject: [PATCH 1/2] Undo unnecessary change
Created using spr 1.3.6-beta.1
---
https://github.com/pcc updated https://github.com/llvm/llvm-project/pull/133536
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>From e728f3444624a5f47f0af84c21fb3a584f3e05b7 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Fri, 1 Aug 2025 17:27:41 -0700
Subject: [PATCH] Add verifier check
Created using spr 1.3.6-beta.1
---
llvm/lib
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>From 01f77d9f42a712324479e3280c57f12800655271 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Wed, 27 Aug 2025 14:51:58 -0700
Subject: [PATCH] Add verifier check
Created using spr 1.3.6-beta.1
---
llvm/do
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>From 01f77d9f42a712324479e3280c57f12800655271 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Wed, 27 Aug 2025 14:51:58 -0700
Subject: [PATCH] Add verifier check
Created using spr 1.3.6-beta.1
---
llvm/do
https://github.com/pcc updated https://github.com/llvm/llvm-project/pull/147424
>From 5bce06b0d8db161a2e09709bcfe15b4623e43d01 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Mon, 7 Jul 2025 16:41:10 -0700
Subject: [PATCH 1/3] =?UTF-8?q?[=F0=9D=98=80=F0=9D=97=BD=F0=9D=97=BF]=20in?=
=?U
https://github.com/pcc updated https://github.com/llvm/llvm-project/pull/149261
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>From 01f77d9f42a712324479e3280c57f12800655271 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Wed, 27 Aug 2025 14:51:58 -0700
Subject: [PATCH] Add verifier check
Created using spr 1.3.6-beta.1
---
llvm/do
https://github.com/pcc updated https://github.com/llvm/llvm-project/pull/149260
>From 01f77d9f42a712324479e3280c57f12800655271 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Wed, 27 Aug 2025 14:51:58 -0700
Subject: [PATCH] Add verifier check
Created using spr 1.3.6-beta.1
---
llvm/do
https://github.com/pcc updated https://github.com/llvm/llvm-project/pull/147424
>From 5bce06b0d8db161a2e09709bcfe15b4623e43d01 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Mon, 7 Jul 2025 16:41:10 -0700
Subject: [PATCH 1/2] =?UTF-8?q?[=F0=9D=98=80=F0=9D=97=BD=F0=9D=97=BF]=20in?=
=?U
https://github.com/pcc commented:
> The lld part should be extracted to a separate patch.
Will do.
> The patch has a base branch. Is it still used?
No, it's not needed. Per https://github.com/orgs/llvm/projects/38 this is the
first unlanded patch in this series. I imagine that spr keeps the b
https://github.com/pcc edited https://github.com/llvm/llvm-project/pull/133531
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@@ -0,0 +1,18 @@
+# REQUIRES: aarch64
+
+# RUN: llvm-mc -filetype=obj -triple=aarch64 %s -o %t.o
+# RUN: not ld.lld %t.o -o %t 2>&1 | FileCheck --check-prefix=ERR %s
+
+.rodata
+# ERR: relocation R_AARCH64_FUNCINIT64 cannot be used against local symbol
pcc wrote:
@@ -0,0 +1,19 @@
+# REQUIRES: aarch64
+
+# RUN: llvm-mc -filetype=obj -triple=aarch64 %s -o %t.o
+# RUN: ld.lld %t.o -o %t
+# RUN: llvm-readelf -s -r %t | FileCheck %s
+# RUN: ld.lld %t.o -o %t -pie
+# RUN: llvm-readelf -s -r %t | FileCheck %s
+# RUN: not ld.lld %t.o -o %t -shared
pcc wrote:
Ping.
https://github.com/llvm/llvm-project/pull/133531
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>From 5bce06b0d8db161a2e09709bcfe15b4623e43d01 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Mon, 7 Jul 2025 16:41:10 -0700
Subject: [PATCH] =?UTF-8?q?[=F0=9D=98=80=F0=9D=97=BD=F0=9D=97=BF]=20initia?=
=?U
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>From 01f77d9f42a712324479e3280c57f12800655271 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Wed, 27 Aug 2025 14:51:58 -0700
Subject: [PATCH] Add verifier check
Created using spr 1.3.6-beta.1
---
llvm/do
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>From 01f77d9f42a712324479e3280c57f12800655271 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Wed, 27 Aug 2025 14:51:58 -0700
Subject: [PATCH] Add verifier check
Created using spr 1.3.6-beta.1
---
llvm/do
https://github.com/pcc updated https://github.com/llvm/llvm-project/pull/147424
>From 5bce06b0d8db161a2e09709bcfe15b4623e43d01 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Mon, 7 Jul 2025 16:41:10 -0700
Subject: [PATCH] =?UTF-8?q?[=F0=9D=98=80=F0=9D=97=BD=F0=9D=97=BF]=20initia?=
=?U
@@ -330,6 +325,18 @@ bool MachineFunction::shouldSplitStack() const {
return getFunction().hasFnAttribute("split-stack");
}
+Align MachineFunction::getPreferredAlignment() const {
+ Align PrefAlignment = Align(1);
pcc wrote:
Done
https://github.com/llvm/l
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>From 38615b9b39e93afab94c6aaa3ae6c026b7f2086a Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Tue, 26 Aug 2025 19:19:33 -0700
Subject: [PATCH] Fix failing lld test
Created using spr 1.3.6-beta.1
---
lld/t
https://github.com/pcc updated https://github.com/llvm/llvm-project/pull/155529
>From 38615b9b39e93afab94c6aaa3ae6c026b7f2086a Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Tue, 26 Aug 2025 19:19:33 -0700
Subject: [PATCH] Fix failing lld test
Created using spr 1.3.6-beta.1
---
lld/t
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pcc wrote:
I would expect
> > For example, it could be dropped from CFI jump tables and the resulting
> > binary would still be correct, it would just be less optimized because jump
> > table relaxation could not be applied.
>
> Is the opposite also true, that you can add it to non-cfi-jump-
pcc wrote:
> > Missing Verifier checks for the new metadata.
>
> Will add.
Done
https://github.com/llvm/llvm-project/pull/149260
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>From 01f77d9f42a712324479e3280c57f12800655271 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Wed, 27 Aug 2025 14:51:58 -0700
Subject: [PATCH] Add verifier check
Created using spr 1.3.6-beta.1
---
llvm/do
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pcc wrote:
At least for the use cases implemented so far, it would be valid to drop the
metadata. For example, it could be dropped from CFI jump tables and the
resulting binary would still be correct, it would just be less optimized
because jump table relaxation could not be applied.
If a use
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MachineFunction can now be queried for the preferred alignment which
comes from the function attributes (optsize, minsize, prefalign) and
TargetLowering. The result of this query is emitted as a .prefalign
directive i
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This option may be used to specify a function's preferred alignment.
The -falign-functions option and the aligned attribute now control
both the minimum alignment and the preferred alignment for consistency
with gcc.
pcc wrote:
Ping, any thoughts on this approach?
https://github.com/llvm/llvm-project/pull/150151
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pcc wrote:
Landed manually
https://github.com/llvm/llvm-project/pull/153873
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With gcc 15 we end up emitting a reference to the
std::__glibcxx_assert_fail function because of this change:
https://github.com/gcc-mirror/gcc/commit/361d230fd7800a7e749aba8ed020f54f5c26d504
combined with assertion c
pcc wrote:
can't reproduce this test failure. I did:
```
cmake -G Ninja -DLLVM_ENABLE_RUNTIMES=libc -DLLVM_ENABLE_PROJECTS=clang\;lld
-DCMAKE_BUILD_TYPE=RelWithDebInfo -DLLVM_ENABLE_ASSERTIONS=1
-DLLVM_TARGETS_TO_BUILD=AArch64 -DCMAKE_C_COMPILER=clang
-DCMAKE_CXX_COMPILER=clang++ ../llvm
ninj
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pcc wrote:
#133534 landed, now unblocked.
https://github.com/llvm/llvm-project/pull/133536
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>From e816ed160ed53ff8d9d9039b778c41ecad8a7da2 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Wed, 6 Aug 2025 17:12:25 -0700
Subject: [PATCH 1/2] Add tests and documentation
Created using spr 1.3.6-beta.1
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pcc wrote:
psABI update landed, this is now unblocked.
https://github.com/llvm/llvm-project/pull/133534
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pcc wrote:
psABI update landed, this is now unblocked.
https://github.com/llvm/llvm-project/pull/133531
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pcc wrote:
C++23 has this to say on reinterpret_casts:
> When a prvalue v of object pointer type is converted to the object pointer
> type “pointer to cv T”, the result is static_cast(static_cast void*>(v)).
and on static_casts it says:
> A prvalue of type “pointer to cv1 void” can be convert
pcc wrote:
I tried it, but it wanted to delete the checks for the deactivation symbols. Do
you know if there is a way to prevent this?
```
diff --git
a/llvm/test/Transforms/PreISelIntrinsicLowering/protected-field-pointer.ll
b/llvm/test/Transforms/PreISelIntr
@@ -461,6 +465,198 @@ bool PreISelIntrinsicLowering::expandMemIntrinsicUses(
return Changed;
}
+namespace {
+
+enum class PointerEncoding {
+ Rotate,
+ PACCopyable,
+ PACNonCopyable,
+};
+
+bool expandProtectedFieldPtr(Function &Intr) {
+ Module &M = *Intr.getParent();
+
@@ -461,6 +465,198 @@ bool PreISelIntrinsicLowering::expandMemIntrinsicUses(
return Changed;
}
+namespace {
+
+enum class PointerEncoding {
+ Rotate,
+ PACCopyable,
+ PACNonCopyable,
+};
+
+bool expandProtectedFieldPtr(Function &Intr) {
+ Module &M = *Intr.getParent();
+
@@ -0,0 +1,46 @@
+; RUN: opt -passes=pre-isel-intrinsic-lowering -S < %s | FileCheck
--check-prefixes=CHECK,NOPAUTH %s
+; RUN: opt -passes=pre-isel-intrinsic-lowering -mattr=+pauth -S < %s |
FileCheck --check-prefixes=CHECK,PAUTH %s
+
+target triple = "aarch64-unknown-linux-gnu"
@@ -31161,3 +31161,57 @@ This intrinsic is assumed to execute in the default
:ref:`floating-point
environment ` *except* for the rounding mode.
This intrinsic is not supported on all targets. Some targets may not support
all rounding modes.
+
+'``llvm.protected.field.ptr``' In
@@ -37,6 +39,8 @@
#include "llvm/Transforms/Utils/LowerMemIntrinsics.h"
#include "llvm/Transforms/Utils/LowerVectorIntrinsics.h"
+#include
pcc wrote:
Done
https://github.com/llvm/llvm-project/pull/151647
___
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@@ -461,6 +465,198 @@ bool PreISelIntrinsicLowering::expandMemIntrinsicUses(
return Changed;
}
+namespace {
+
+enum class PointerEncoding {
+ Rotate,
+ PACCopyable,
+ PACNonCopyable,
+};
+
+bool expandProtectedFieldPtr(Function &Intr) {
+ Module &M = *Intr.getParent();
+
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>From 96e7da9a083888683c2ba00d97f886fd748ea10b Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Wed, 9 Apr 2025 20:30:57 -0700
Subject: [PATCH 1/2] Undo unnecessary change
Created using spr 1.3.6-beta.1
---
pcc wrote:
> IIUC, the goal here is for the compiler to be able to apply e.g. pointer
> authentication on fields of these structs automatically. It can't do so if
> they are standard layout types, because then users are technically allowed to
> poke into the binary representation of these type
https://github.com/pcc edited https://github.com/llvm/llvm-project/pull/133537
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>From 96e7da9a083888683c2ba00d97f886fd748ea10b Mon Sep 17 00:00:00 2001
From: Peter Collingbourne
Date: Wed, 9 Apr 2025 20:30:57 -0700
Subject: [PATCH] Undo unnecessary change
Created using spr 1.3.6-beta.1
---
lld
https://github.com/pcc updated https://github.com/llvm/llvm-project/pull/133534
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