@@ -1105,6 +1105,11 @@ bool MicrosoftCXXABI::hasMostDerivedReturn(GlobalDecl
GD) const {
static bool isTrivialForMSVC(const CXXRecordDecl *RD, QualType Ty,
CodeGenModule ) {
+ // If the record is marked with the trivial_abi attribute, we don't
+
@@ -1105,6 +1105,11 @@ bool MicrosoftCXXABI::hasMostDerivedReturn(GlobalDecl
GD) const {
static bool isTrivialForMSVC(const CXXRecordDecl *RD, QualType Ty,
CodeGenModule ) {
+ // If the record is marked with the trivial_abi attribute, we don't
+
rnk wrote:
Sorry for the delay, work life does its best to intervene.
https://github.com/llvm/llvm-project/pull/88857
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@@ -1105,6 +1105,11 @@ bool MicrosoftCXXABI::hasMostDerivedReturn(GlobalDecl
GD) const {
static bool isTrivialForMSVC(const CXXRecordDecl *RD, QualType Ty,
CodeGenModule ) {
+ // If the record is marked with the trivial_abi attribute, we don't
+
tru wrote:
ping on this.
https://github.com/llvm/llvm-project/pull/88857
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@@ -1105,6 +1105,11 @@ bool MicrosoftCXXABI::hasMostDerivedReturn(GlobalDecl
GD) const {
static bool isTrivialForMSVC(const CXXRecordDecl *RD, QualType Ty,
CodeGenModule ) {
+ // If the record is marked with the trivial_abi attribute, we don't
+
@@ -1105,6 +1105,11 @@ bool MicrosoftCXXABI::hasMostDerivedReturn(GlobalDecl
GD) const {
static bool isTrivialForMSVC(const CXXRecordDecl *RD, QualType Ty,
CodeGenModule ) {
+ // If the record is marked with the trivial_abi attribute, we don't
+
@@ -1105,6 +1105,11 @@ bool MicrosoftCXXABI::hasMostDerivedReturn(GlobalDecl
GD) const {
static bool isTrivialForMSVC(const CXXRecordDecl *RD, QualType Ty,
CodeGenModule ) {
+ // If the record is marked with the trivial_abi attribute, we don't
+
https://github.com/rnk requested changes to this pull request.
https://github.com/llvm/llvm-project/pull/88857
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https://github.com/rnk edited https://github.com/llvm/llvm-project/pull/88857
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@@ -1105,6 +1105,11 @@ bool MicrosoftCXXABI::hasMostDerivedReturn(GlobalDecl
GD) const {
static bool isTrivialForMSVC(const CXXRecordDecl *RD, QualType Ty,
CodeGenModule ) {
+ // If the record is marked with the trivial_abi attribute, we don't
+
https://github.com/efriedma-quic approved this pull request.
LGTM
https://github.com/llvm/llvm-project/pull/88857
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tru wrote:
@efriedma-quic are you ok with this change?
https://github.com/llvm/llvm-project/pull/88857
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https://github.com/rnk approved this pull request.
Thanks!
https://github.com/llvm/llvm-project/pull/88857
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@@ -0,0 +1,21 @@
+// RUN: %clang_cc1 -triple x86_64-pc-windows-msvc -std=c++11 -fcxx-exceptions
-fexceptions -emit-llvm -o - %s | FileCheck %s
+
+// CHECK: %[[STRUCT_TRIVIAL:.*]] = type { ptr }
+struct __attribute__((trivial_abi)) Trivial {
+ int *p;
+ Trivial() : p(0) {}
+
https://github.com/tru updated https://github.com/llvm/llvm-project/pull/88857
>From 08214d87d1a7c83ea25eef3bf18de1568a20a152 Mon Sep 17 00:00:00 2001
From: Tobias Hieta
Date: Tue, 16 Apr 2024 09:38:53 +0200
Subject: [PATCH] [clang] Handle trivial_abi attribute for Microsoft ABI.
Previously
@@ -0,0 +1,21 @@
+// RUN: %clang_cc1 -triple x86_64-pc-windows-msvc -std=c++11 -fcxx-exceptions
-fexceptions -emit-llvm -o - %s | FileCheck %s
+
+// CHECK: %[[STRUCT_TRIVIAL:.*]] = type { ptr }
+struct __attribute__((trivial_abi)) Trivial {
+ int *p;
+ Trivial() : p(0) {}
+
@@ -0,0 +1,21 @@
+// RUN: %clang_cc1 -triple x86_64-pc-windows-msvc -std=c++11 -fcxx-exceptions
-fexceptions -emit-llvm -o - %s | FileCheck %s
+
+// CHECK: %[[STRUCT_TRIVIAL:.*]] = type { ptr }
+struct __attribute__((trivial_abi)) Trivial {
+ int *p;
+ Trivial() : p(0) {}
+
@@ -63,6 +63,10 @@ ABI Changes in This Version
MSVC uses a different mangling for these objects, compatibility is not
affected.
(#GH85423).
+- The attribute ``trivial_abi`` now works when targetting the Microsoft ABI.
Marking
rnk wrote:
It's overly
llvmbot wrote:
@llvm/pr-subscribers-clang-codegen
Author: Tobias Hieta (tru)
Changes
Previously the trivial_abi was ignored for records when targetting the
microsoft abi, the MSVC rules where always enforced to ensure compatibility
with MSVC. This commit changes it to be closer to the
https://github.com/tru created https://github.com/llvm/llvm-project/pull/88857
Previously the trivial_abi was ignored for records when targetting the
microsoft abi, the MSVC rules where always enforced to ensure compatibility
with MSVC. This commit changes it to be closer to the itanium abi
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