https://github.com/hokein updated
https://github.com/llvm/llvm-project/pull/142983
>From 61be4bfea92d52cfc3e48a3cabb1bc80cbebb7fa Mon Sep 17 00:00:00 2001
From: Haojian Wu <hokein...@gmail.com>
Date: Thu, 5 Jun 2025 15:38:58 +0200
Subject: [PATCH 1/2] [clang] Reduce TemplateDeclInstantiator size.
---
clang/include/clang/Sema/Template.h | 4 ++--
clang/lib/Sema/SemaTemplateInstantiateDecl.cpp | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/clang/include/clang/Sema/Template.h
b/clang/include/clang/Sema/Template.h
index af0c1e8506cf3..0c68ad9b9d90a 100644
--- a/clang/include/clang/Sema/Template.h
+++ b/clang/include/clang/Sema/Template.h
@@ -587,7 +587,7 @@ enum class TemplateSubstitutionKind : char {
/// specializations that will need to be instantiated after the
/// enclosing class's instantiation is complete.
SmallVector<std::pair<ClassTemplateDecl *,
- ClassTemplatePartialSpecializationDecl *>, 4>
+ ClassTemplatePartialSpecializationDecl *>, 1>
OutOfLinePartialSpecs;
/// A list of out-of-line variable template partial
@@ -595,7 +595,7 @@ enum class TemplateSubstitutionKind : char {
/// enclosing variable's instantiation is complete.
/// FIXME: Verify that this is needed.
SmallVector<
- std::pair<VarTemplateDecl *, VarTemplatePartialSpecializationDecl *>,
4>
+ std::pair<VarTemplateDecl *, VarTemplatePartialSpecializationDecl *>,
1>
OutOfLineVarPartialSpecs;
public:
diff --git a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
index bcad815e1587f..7da09b149446a 100644
--- a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -2394,7 +2394,7 @@ Decl
*TemplateDeclInstantiator::VisitVarTemplateDecl(VarTemplateDecl *D) {
// Queue up any out-of-line partial specializations of this member
// variable template; the client will force their instantiation once
// the enclosing class has been instantiated.
- SmallVector<VarTemplatePartialSpecializationDecl *, 4> PartialSpecs;
+ SmallVector<VarTemplatePartialSpecializationDecl *, 1> PartialSpecs;
D->getPartialSpecializations(PartialSpecs);
for (unsigned I = 0, N = PartialSpecs.size(); I != N; ++I)
if (PartialSpecs[I]->getFirstDecl()->isOutOfLine())
>From 77ecc3b6362ab9b844f4b4393b839e9b3e57175b Mon Sep 17 00:00:00 2001
From: Haojian Wu <hokein...@gmail.com>
Date: Fri, 6 Jun 2025 09:10:08 +0200
Subject: [PATCH 2/2] clang-format
---
clang/include/clang/Sema/Template.h | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/clang/include/clang/Sema/Template.h
b/clang/include/clang/Sema/Template.h
index 0c68ad9b9d90a..fe907078af275 100644
--- a/clang/include/clang/Sema/Template.h
+++ b/clang/include/clang/Sema/Template.h
@@ -587,8 +587,9 @@ enum class TemplateSubstitutionKind : char {
/// specializations that will need to be instantiated after the
/// enclosing class's instantiation is complete.
SmallVector<std::pair<ClassTemplateDecl *,
- ClassTemplatePartialSpecializationDecl *>, 1>
- OutOfLinePartialSpecs;
+ ClassTemplatePartialSpecializationDecl *>,
+ 1>
+ OutOfLinePartialSpecs;
/// A list of out-of-line variable template partial
/// specializations that will need to be instantiated after the
@@ -596,7 +597,7 @@ enum class TemplateSubstitutionKind : char {
/// FIXME: Verify that this is needed.
SmallVector<
std::pair<VarTemplateDecl *, VarTemplatePartialSpecializationDecl *>,
1>
- OutOfLineVarPartialSpecs;
+ OutOfLineVarPartialSpecs;
public:
TemplateDeclInstantiator(Sema &SemaRef, DeclContext *Owner,
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