[PATCH] D109265: [X86][mingw] Modify the alignment of __m128/__m256/__m512 vector type for mingw

[Pengfei Wang via Phabricator via cfe-commits]

pengfei created this revision.
pengfei added reviewers: rnk, mstorsjo, LiuChen3, LuoYuanke.
pengfei requested review of this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.

This is a follow up patch after D78564 <https://reviews.llvm.org/D78564> and D108887 <https://reviews.llvm.org/D108887>.

Martin helped to confirm the alignment in GCC mingw is the same as the
size of vector. https://reviews.llvm.org/D108887#inline-1040893


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D109265

Files:
  clang/lib/CodeGen/TargetInfo.cpp
  clang/test/CodeGen/x86_32-align-linux.c


Index: clang/test/CodeGen/x86_32-align-linux.c
===================================================================
--- clang/test/CodeGen/x86_32-align-linux.c
+++ clang/test/CodeGen/x86_32-align-linux.c
@@ -1,6 +1,9 @@
 // RUN: %clang_cc1 -w -fblocks -ffreestanding -triple i386-pc-linux-gnu -emit-llvm -o - %s | FileCheck %s
 // RUN: %clang_cc1 -w -fblocks -ffreestanding -triple i386-pc-linux-gnu -target-feature +avx -emit-llvm -o - %s | FileCheck %s
 // RUN: %clang_cc1 -w -fblocks -ffreestanding -triple i386-pc-linux-gnu -target-feature +avx512f -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -w -fblocks -ffreestanding -triple i386-pc-linux-mingw -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -w -fblocks -ffreestanding -triple i386-pc-linux-mingw -target-feature +avx -emit-llvm -o - %s | FileCheck %s
+// RUN: %clang_cc1 -w -fblocks -ffreestanding -triple i386-pc-linux-mingw -target-feature +avx512f -emit-llvm -o - %s | FileCheck %s
 
 #include <immintrin.h>
 
Index: clang/lib/CodeGen/TargetInfo.cpp
===================================================================
--- clang/lib/CodeGen/TargetInfo.cpp
+++ clang/lib/CodeGen/TargetInfo.cpp
@@ -1170,7 +1170,8 @@
       IsRetSmallStructInRegABI(RetSmallStructInRegABI),
       IsWin32StructABI(Win32StructABI), IsSoftFloatABI(SoftFloatABI),
       IsMCUABI(CGT.getTarget().getTriple().isOSIAMCU()),
-      IsLinuxABI(CGT.getTarget().getTriple().isOSLinux()),
+      IsLinuxABI(CGT.getTarget().getTriple().isOSLinux() ||
+                 CGT.getTarget().getTriple().isOSCygMing()),
       DefaultNumRegisterParameters(NumRegisterParameters) {}
 
   bool shouldPassIndirectlyForSwift(ArrayRef<llvm::Type*> scalars,


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