[PATCH] D53617: [AArch64] Support Windows stack probe command-line arguments.

[Eli Friedman via Phabricator via cfe-commits]

efriedma created this revision.
efriedma added reviewers: rnk, hans.
Herald added subscribers: kristof.beyls, javed.absar.

Adds support for -mno-stack-arg-probe and -mstack-probe-size.

(Not really happy copy-pasting code, but that's what we do for all the other Windows targets.)


Repository:
  rC Clang

https://reviews.llvm.org/D53617

Files:
  lib/CodeGen/TargetInfo.cpp
  test/CodeGen/stack-arg-probe.c


Index: test/CodeGen/stack-arg-probe.c
===================================================================
--- test/CodeGen/stack-arg-probe.c
+++ test/CodeGen/stack-arg-probe.c
@@ -1,8 +1,15 @@
 // RUN: %clang_cc1 %s -triple=i686-windows-msvc -emit-llvm -o - -mno-stack-arg-probe | FileCheck %s -check-prefix=NO-STACKPROBE
+// RUN: %clang_cc1 %s -triple=x86_64-windows-msvc -emit-llvm -o - -mno-stack-arg-probe | FileCheck %s -check-prefix=NO-STACKPROBE
+// RUN: %clang_cc1 %s -triple=armv7-windows-msvc -emit-llvm -o - -mno-stack-arg-probe | FileCheck %s -check-prefix=NO-STACKPROBE
+// RUN: %clang_cc1 %s -triple=aarch64-windows-msvc -emit-llvm -o - -mno-stack-arg-probe | FileCheck %s -check-prefix=NO-STACKPROBE
 // RUN: %clang_cc1 %s -triple=i686-windows-msvc -emit-llvm -o - | FileCheck %s -check-prefix=STACKPROBE
+// RUN: %clang_cc1 %s -triple=x86_64-windows-msvc -emit-llvm -o - | FileCheck %s -check-prefix=STACKPROBE
+// RUN: %clang_cc1 %s -triple=armv7-windows-msvc -emit-llvm -o - | FileCheck %s -check-prefix=STACKPROBE
+// RUN: %clang_cc1 %s -triple=aarch64-windows-msvc -emit-llvm -o - | FileCheck %s -check-prefix=STACKPROBE
+
 
 // NO-STACKPROBE: attributes #{{[0-9]+}} = {{{.*}} "no-stack-arg-probe"
-// STACKPROBE-NOT: attributes #{{[0-9]+}} = {{{.*}} "no-stack-arg-probe"
+// STACKPROBE-NOT: "no-stack-arg-probe"
 
 void test1() {
 }
Index: lib/CodeGen/TargetInfo.cpp
===================================================================
--- lib/CodeGen/TargetInfo.cpp
+++ lib/CodeGen/TargetInfo.cpp
@@ -4993,6 +4993,9 @@
   WindowsAArch64TargetCodeGenInfo(CodeGenTypes &CGT, AArch64ABIInfo::ABIKind K)
       : AArch64TargetCodeGenInfo(CGT, K) {}
 
+  void setTargetAttributes(const Decl *D, llvm::GlobalValue *GV,
+                           CodeGen::CodeGenModule &CGM) const override;
+
   void getDependentLibraryOption(llvm::StringRef Lib,
                                  llvm::SmallString<24> &Opt) const override {
     Opt = "/DEFAULTLIB:" + qualifyWindowsLibrary(Lib);
@@ -5003,6 +5006,14 @@
     Opt = "/FAILIFMISMATCH:\"" + Name.str() + "=" + Value.str() + "\"";
   }
 };
+
+void WindowsAArch64TargetCodeGenInfo::setTargetAttributes(
+    const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &CGM) const {
+  AArch64TargetCodeGenInfo::setTargetAttributes(D, GV, CGM);
+  if (GV->isDeclaration())
+    return;
+  addStackProbeTargetAttributes(D, GV, CGM);
+}
 }
 
 ABIArgInfo AArch64ABIInfo::classifyArgumentType(QualType Ty) const {


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