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https://github.com/llvm/llvm-project/pull/141742
The constructor starts the lifetime of all the subobjects.
>From 11f8d2e4c3282a9b49f9cf08b7d16f6c32e08134 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Wed, 28 May 2025 11:27:39 +0200
Subj
Timm =?utf-8?q?Bäder?=
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https://github.com/tbaederr updated
https://github.com/llvm/llvm-project/pull/141483
>From fc2a7157b912b4eff6e9921b797b01792506a72c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Mon, 26 May 2025 14:05:24 +0200
Subject: [PAT
@@ -851,6 +851,19 @@ bool CheckCallable(InterpState &S, CodePtr OpPC, const
Function *F) {
if (F->isLambdaStaticInvoker())
return true;
+ // Diagnose failed assertions specially.
+ if (S.Current->getLocation(OpPC).isMacroID() &&
+ F->getDecl()->getIdentifier()) {
https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/140034
We handle discarding fine, but we used to ignore all discarded cast
expressions. Handle bitcasts differently.
Rate limit · GitHub
body {
background-color: #f6f8f
https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/140039
Also, increase the EvalID in isPotentialConstantExpr(), since this is its own
evaluation.
Rate limit · GitHub
body {
background-color: #f6f8fa;
color: #2
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https://github.com/llvm/llvm-project/pull/140034
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None
>From abf8f9f5411f8ee9ee9df31ce1a5faaf0b6e8f0c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Thu, 15 May 2025 12:50:56 +0200
Subject: [PATCH] [clang][bytecode] Check dtor calls for on
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https://github.com/llvm/llvm-project/pull/140039
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@@ -2901,34 +2907,43 @@ class CallExpr : public Expr {
//
// * An optional of type FPOptionsOverride.
//
- // Note that we store the offset in bytes from the this pointer to the start
- // of the trailing objects. It would be perfectly possible to compute it
- // based
https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/141123
CheckStore is for assignments, but we're constructing something here, so pass
AK_Construct instead. We already diagnosed the test case, but as an assignment.
>From dc798c13b85c7730a99b987c334e550f11d8a51c Mon
https://github.com/tbaederr closed
https://github.com/llvm/llvm-project/pull/141006
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https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/141006
Change the diagnostics when reading from the variable we're currently
initializing do be the same as the one the current interpreter emits.
>From 4a9c9a11f80de2306d07a836ec704aa6b3d7f35a Mon Sep 17 00:00:00 20
https://github.com/tbaederr updated
https://github.com/llvm/llvm-project/pull/141006
>From 4f64271943f796cd6f4aa41a613d058766d61e6c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Thu, 22 May 2025 06:52:09 +0200
Subject: [PATCH] [clang][bytecode] Change diagnostics for self-i
https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/141041
Make pointer parameters const, remove some unused parameters, fix coding style,
etc.
>From a79f0474700c1b96b98ef4d05c30816b48742e5e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Thu, 22 M
https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/141044
None
>From bbd228b43194e37e0b5441c3f682a35ff27171b9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Thu, 22 May 2025 13:34:33 +0200
Subject: [PATCH] [clang][bytecode] Fix self-init diagnosti
https://github.com/tbaederr updated
https://github.com/llvm/llvm-project/pull/141123
>From 007962efa820248c12dc7fc2c84de67cf54e5c00 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Thu, 22 May 2025 21:01:55 +0200
Subject: [PATCH] [clang][bytecode] Fix AccessKinds in placement
https://github.com/tbaederr closed
https://github.com/llvm/llvm-project/pull/141099
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https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/141272
placement-new'ing an object with a dead base object is not allowed, so we need
to check all the pointer bases.
>From b926faa034774260871133e1eaa415f4b0bb8721 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C
https://github.com/tbaederr updated
https://github.com/llvm/llvm-project/pull/141272
>From 9a8f1f46b1a4e9610b1c3e6d1124ba6321896da9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Fri, 23 May 2025 19:41:59 +0200
Subject: [PATCH] [clang][bytecode] Check lifetime of all ptr bas
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https://github.com/llvm/llvm-project/pull/141123
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https://github.com/llvm/llvm-project/pull/141950
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https://github.com/llvm/llvm-project/pull/141953
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https://github.com/llvm/llvm-project/pull/141951
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https://github.com/tbaederr updated
https://github.com/llvm/llvm-project/pull/141952
>From f1c2dbfd29b201baf644d7f7e5ee5dd2a9f1f744 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Thu, 29 May 2025 13:48:15 +0200
Subject: [PATCH] [clang][bytecode] Make some builtins no-ops
Fo
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https://github.com/tbaederr updated
https://github.com/llvm/llvm-project/pull/141950
>From 1946e68dab09b4eec02a742e61d2928abd5fc60e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Thu, 29 May 2025 13:00:07 +0200
Subject: [PAT
https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/141952
For some builtins, we dont' need to do anything, but due to the cleanup code
being the same for all builtins, we still had to duplicate the value on the
stack. Remove that and get rid of all the unnecessary pr
https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/141953
None
>From b3041c31a49852d7211de7fdcbc320258ed55d99 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Thu, 29 May 2025 14:20:45 +0200
Subject: [PATCH] [clang][bytecode] Don't get the expr with
https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/141950
Try not to call getDiagInfo() as often and only do it if we really have to.
>From 1946e68dab09b4eec02a742e61d2928abd5fc60e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Thu, 29 May 2025 13
https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/141951
Pre C++11, we dont't need to get the value of IsImplicit.
>From 3cdc0e88a50dae1299532342fc39ccb88f9dd564 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Thu, 29 May 2025 13:48:09 +0200
Subje
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https://github.com/llvm/llvm-project/pull/141483
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https://github.com/llvm/llvm-project/pull/141910
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tbaederr wrote:
> How are you coming up w/ the target for your improvements? Is this something
> other folks could try and try and find some inspiration?
I ran the `SemaExpr.cpp` compilation command from the `compile_commands.json`
through va
https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/141910
See the added comment.
This improves compile times a bit:
https://llvm-compile-time-tracker.com/compare.php?from=ac62f73f19ae9fb415d3fc423949b8d7543e8717&to=0d6cf47197a4ee11cdd1ee4a48ea38a2907c3d45&stat=instruc
@@ -5120,6 +5121,10 @@ bool Sema::addInstantiatedParametersToScope(
// Simple case: not a parameter pack.
assert(FParamIdx < Function->getNumParams());
ParmVarDecl *FunctionParam = Function->getParamDecl(FParamIdx);
+ DeclarationName name = FunctionParam-
tbaederr wrote:
The original code looks like the ordering with the `ImmediateDiag.reset()` call
matters, but it doesn't seem like it does.
https://github.com/llvm/llvm-project/pull/142252
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https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/142252
Call getDiagnosticLevel(), which is expensive, only if ShowCallStack is set.
Small gains:
https://llvm-compile-time-tracker.com/compare.php?from=843e362318e884991e517a54446b4faeacdad789&to=5cef0c18466318a426924
https://github.com/tbaederr closed
https://github.com/llvm/llvm-project/pull/142793
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https://github.com/llvm/llvm-project/pull/142580
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https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/142580
Remove unused functions and add tests for fixed-point to bool casts, which work.
>From 113466cd964229100f5ff6d8e9672cde817992c3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Tue, 3 Jun 202
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tbaederr wrote:
Can you try applying
```diff
diff --git i/clang/lib/AST/ByteCode/IntegralAP.h
w/clang/lib/AST/ByteCode/IntegralAP.h
index 0280ea072ca9..4c1fb61e3e15 100644
--- i/clang/lib/AST/ByteCode/IntegralAP.h
+++ w
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https://github.com/llvm/llvm-project/pull/144271
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https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/145014
…types usi… (#144676)"
This reverts commit 68471d29eed2c49f9b439e505b3f24d387d54f97.
IntegralAP contains a union:
union {
uint64_t *Memory = nullptr;
uint64_t Val;
};
On 64bit systems, both Memory
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https://github.com/llvm/llvm-project/pull/145014
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https://github.com/llvm/llvm-project/pull/145302
None
>From 33eadba2a8d300be67cab69540537589400f7b96 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Mon, 23 Jun 2025 12:00:20 +0200
Subject: [PATCH] [clang][bytecode] Fix assignInteger() wit
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https://github.com/llvm/llvm-project/pull/145302
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https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/145280
This was broken before because we ended up using a constructor that was
disabled via assert(false). Use ShiftAP() if either LHS or RHS is allocated.
>From 58751e9c9b5d9c2437c6a3a6f22b16c5aba8b8ab Mon Sep 17 00
https://github.com/tbaederr closed
https://github.com/llvm/llvm-project/pull/145280
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https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/145339
We need to take signeness into account here.
>From fade41f6df27da0c20751276aa8586bb1540bbf7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Mon, 23 Jun 2025 17:10:20 +0200
Subject: [PATCH] [
@@ -733,16 +731,14 @@ class ASTWriter : public ASTDeserializationListener,
void AddFileID(FileID FID, RecordDataImpl &Record);
/// Emit a source location.
- void AddSourceLocation(SourceLocation Loc, RecordDataImpl &Record,
- LocSeq *Seq = nullptr)
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@@ -4674,10 +4677,7 @@ VarCreationState Compiler::visitVarDecl(const
VarDecl *VD,
if (!visitInitializer(Init))
return false;
- if (!this->emitFinishInit(Init))
-return false;
-
- return this->emitPopPtr(Init);
+ return this->emitFinishInit
@@ -17,63 +17,80 @@
#include "clang/AST/APValue.h"
#include "llvm/ADT/APFloat.h"
+// XXX This is just a debugging help. Setting this to 1 will heap-allocate ALL
+// floating values.
+#define ALLOCATE_ALL 0
+
namespace clang {
namespace interp {
using APFloat = llvm::APFlo
Timm =?utf-8?q?Bäder?=
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https://github.com/tbaederr updated
https://github.com/llvm/llvm-project/pull/144246
>From 9801280bab3f751995c6bc7838ccbadb09d8d208 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Tue, 10 Jun 2025 14:45:39 +0200
Subject: [PAT
@@ -17,63 +17,80 @@
#include "clang/AST/APValue.h"
#include "llvm/ADT/APFloat.h"
+// XXX This is just a debugging help. Setting this to 1 will heap-allocate ALL
+// floating values.
+#define ALLOCATE_ALL 0
+
tbaederr wrote:
I didn't have any plan for it, I ju
https://github.com/tbaederr edited
https://github.com/llvm/llvm-project/pull/144246
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@@ -1371,6 +1371,19 @@ void MallocChecker::checkIfFreeNameIndex(ProgramStateRef
State,
C.addTransition(State);
}
+bool isVoidStar(QualType T) {
+ return !T.isNull() && T->isPointerType() &&
T->getPointeeType()->isVoidType();
tbaederr wrote:
There's `isVo
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https://github.com/tbaederr updated
https://github.com/llvm/llvm-project/pull/144246
>From 9801280bab3f751995c6bc7838ccbadb09d8d208 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Tue, 10 Jun 2025 14:
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@@ -17,63 +17,80 @@
#include "clang/AST/APValue.h"
#include "llvm/ADT/APFloat.h"
+// XXX This is just a debugging help. Setting this to 1 will heap-allocate ALL
+// floating values.
+#define ALLOCATE_A
https://github.com/tbaederr approved this pull request.
https://github.com/llvm/llvm-project/pull/143443
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https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/145341
P.block() will assert that P is a block pointer, which it doesn't have to be
here.
>From 598d2a9d4c5e31749e79c35802d4b3b3ca8773be Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Mon, 23 Jun
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https://github.com/llvm/llvm-project/pull/145339
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tbaederr wrote:
Yes, you need
https://github.com/llvm/llvm-project/commit/0e461d1781f1c67cc2724150c6da848f6ea75f3a
as well
https://github.com/llvm/llvm-project/pull/145339
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tbaederr wrote:
Formatting seems to be a difference in clang-format versions. I already
formatted the patch locally.
https://github.com/llvm/llvm-project/pull/144246
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https://github.com/llvm/llvm-project/pull/144246
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https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/144246
Both `APInt` and `APFloat` will heap-allocate memory themselves using the
system allocator when the size of their data exceeds 64 bits.
This is why clang has `APNumericStorage`, which allocates its memory usin
@@ -0,0 +1,8 @@
+// RUN: %clang_cc1 -std=c++17 -verify %s
-fexperimental-new-constant-interpreter
+// RUN: %clang_cc1 -std=c++17 -verify %s
+
+void f1() {
tbaederr wrote:
Add this test in its own namespace to `cxx17.cpp` please.
https://github.com/llvm/llvm-pro
https://github.com/tbaederr updated
https://github.com/llvm/llvm-project/pull/144246
>From 0f737d3293bf079baf794101d8cd5f92a86e5117 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Tue, 10 Jun 2025 14:45:39 +0200
Subject: [PATCH] intap
---
clang/lib/AST/ByteCode/Compiler.cpp
https://github.com/tbaederr approved this pull request.
LGTM, thanks!
https://github.com/llvm/llvm-project/pull/144226
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https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/144271
Discard all the parameters we don't care about.
>From 56ef41ba741fc71d797b1d6768d6fb8211c71bef Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Sun, 15 Jun 2025 19:26:16 +0200
Subject: [PATCH
@@ -4272,6 +4272,12 @@ def MoveIfNsoexcept : CxxLibBuiltin<"utility"> {
let Namespace = "std";
}
+def Invoke : Builtin {
+ let Spellings = ["__builtin_invoke"];
+ let Attributes = [CustomTypeChecking, Constexpr];
tbaederr wrote:
There are no changes to `E
@@ -141,3 +141,13 @@ template constexpr auto c() {
}
auto y = c<1>(); // both-note {{in instantiation of function template
specialization 'c<1>' requested here}}
+
+namespace non_constexpr_structured_binding {
+
+void f1() {
+ int arr[2] = {};
+ auto [a, b] = arr;
+ stati
@@ -141,3 +141,11 @@ template constexpr auto c() {
}
auto y = c<1>(); // both-note {{in instantiation of function template
specialization 'c<1>' requested here}}
+
+namespace non_constexpr_structured_binding {
tbaederr wrote:
You forgot the namespace name
https://github.com/tbaederr approved this pull request.
https://github.com/llvm/llvm-project/pull/145988
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https://github.com/tbaederr closed
https://github.com/llvm/llvm-project/pull/142555
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tbaederr wrote:
Could you run this through the compile time tracker?
https://github.com/llvm/llvm-project/pull/142713
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https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/142720
None
>From 22f7f0a3b1a5b740377ce56ea0532b6d4a866aa0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Wed, 4 Jun 2025 07:05:29 +0200
Subject: [PATCH] [clang][bytecode][NFC] Cache more integer
https://github.com/tbaederr closed
https://github.com/llvm/llvm-project/pull/142720
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https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/142793
Rename isConstexpr to isValid, the former was always a bad name. Save a
constexpr bit in Function so we don't have to access the decl in CheckCallable.
>From f5dbb8228c19e5dd95bd4da65fe4c6f394df32c2 Mon Sep 17
https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/142832
Instead of just peek()ing the values when evaluating the builtins and later
classify()ing all the call args once again to remove them, just do it while
evaluating. This saves quite a bit of code.
>From 77e619
https://github.com/tbaederr updated
https://github.com/llvm/llvm-project/pull/142832
>From 7cb647229d8c2e47de60f7b1bd13423155e8456b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Wed, 4 Jun 2025 15:10:55 +0200
Subject: [PATCH] [clang][bytecode] Pop builtin args from the stac
https://github.com/tbaederr updated
https://github.com/llvm/llvm-project/pull/142555
>From a98453657b881d8cacebac99551becf85168649f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Tue, 3 Jun 2025 09:24:57 +0200
Subject: [PATCH] [clang][bytecode] Partially address string liter
https://github.com/tbaederr closed
https://github.com/llvm/llvm-project/pull/141470
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https://github.com/tbaederr closed
https://github.com/llvm/llvm-project/pull/141742
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tbaederr wrote:
Ah, sorry about that. Thanks.
https://github.com/llvm/llvm-project/pull/141952
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https://github.com/tbaederr edited
https://github.com/llvm/llvm-project/pull/141470
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tbaederr wrote:
> Can you elaborate in your summary.
>
> I am guessing because the other checks are a lot cheaper and this overall
> improves performance?
Yep. Updated the description.
https://github.com/llvm/llvm-project/pull/141470
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https://github.com/tbaederr approved this pull request.
https://github.com/llvm/llvm-project/pull/143034
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https://github.com/tbaederr approved this pull request.
https://github.com/llvm/llvm-project/pull/143578
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tbaederr wrote:
The linked standard says:
> Full-expressions evaluated within a core constant expression
> ([[expr.const]](https://eel.is/c++draft/expr.const)) [1 048
> 576][.](https://eel.is/c++draft/implimits#1.39.sentence-1)
Is that actually what the "steps" in clang refer to? We seem to ch
https://github.com/tbaederr created
https://github.com/llvm/llvm-project/pull/146824
First, don't forget to also activate fields which are bitfields on assignment.
Second, when deactivating fields, recurse into records.
>From 590c6778439fd1410ce17793ddeb03de055771e0 Mon Sep 17 00:00:00 2001
Fr
tbaederr wrote:
yes, done.
https://github.com/llvm/llvm-project/pull/146829
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https://github.com/tbaederr updated
https://github.com/llvm/llvm-project/pull/146829
>From c193cfbdd9215ee1dbd84e00ecb47a51542da98b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?=
Date: Thu, 3 Jul 2025 09:57:40 +0200
Subject: [PATCH] [clang][test] Avoid some C++14 warnings in discr
@@ -18252,6 +18252,11 @@ static bool
isImplicitlyDefinableConstexprFunction(FunctionDecl *Func) {
if (Func->isImplicitlyInstantiable() || !Func->isUserProvided())
return true;
+
+ // Lambda conversion operators are never user provided
tbaederr wrote:
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