[X86] Clang option -fuse-init-array has no effect when generating for MCU target

Reviewers: Eugene.Zelenko, dschuff, craig.topper

Reviewed By: craig.topper

Subscribers: ahatanak, aaboud, DavidKreitzer, llvm-commits, cfe-commits

Differential Revision: https://reviews.llvm.org/D32543
Patch by AndreiGrischenko <andrei.l.grischenko@intel.com>

llvm-svn: 302513

diff --git a/llvm/lib/Target/X86/X86TargetMachine.cpp b/llvm/lib/Target/X86/X86TargetMachine.cpp
index 086f55d..9a82e6e 100644 (file)
--- a/llvm/lib/Target/X86/X86TargetMachine.cpp
+++ b/llvm/lib/Target/X86/X86TargetMachine.cpp
@@ -87,7 +87,7 @@ static std::unique_ptr<TargetLoweringObjectFile> createTLOF(const Triple &TT) {
 
   if (TT.isOSFreeBSD())
     return llvm::make_unique<X86FreeBSDTargetObjectFile>();
-  if (TT.isOSLinux() || TT.isOSNaCl())
+  if (TT.isOSLinux() || TT.isOSNaCl() || TT.isOSIAMCU())
     return llvm::make_unique<X86LinuxNaClTargetObjectFile>();
   if (TT.isOSFuchsia())
     return llvm::make_unique<X86FuchsiaTargetObjectFile>();

diff --git a/llvm/test/CodeGen/X86/constructor.ll b/llvm/test/CodeGen/X86/constructor.ll
index 7b82125..2f3c343 100644 (file)
--- a/llvm/test/CodeGen/X86/constructor.ll
+++ b/llvm/test/CodeGen/X86/constructor.ll
@@ -3,6 +3,8 @@
 ; RUN: llc -mtriple x86_64-pc-linux < %s | FileCheck --check-prefix=INIT-ARRAY %s
 ; RUN: llc -mtriple x86_64-unknown-freebsd < %s | FileCheck --check-prefix=INIT-ARRAY %s
 ; RUN: llc -mtriple x86_64-unknown-nacl < %s | FileCheck --check-prefix=NACL %s
+; RUN: llc -mtriple i586-intel-elfiamcu -use-ctors < %s | FileCheck %s --check-prefix=MCU-CTORS
+; RUN: llc -mtriple i586-intel-elfiamcu < %s | FileCheck %s --check-prefix=MCU-INIT-ARRAY
 @llvm.global_ctors = appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @f, i8* null}, { i32, void ()*, i8* } { i32 15, void ()* @g, i8* @v }]
 
 @v = weak_odr global i8 0
@@ -37,3 +39,6 @@ entry:
 ; NACL-NEXT:   .section        .init_array,"aw",@init_array
 ; NACL-NEXT:   .p2align        2
 ; NACL-NEXT:   .long   f
+
+; MCU-CTORS:         .section        .ctors,"aw",@progbits
+; MCU-INIT-ARRAY:    .section        .init_array,"aw",@init_array