[PATCH] D32543: [X86] Clang option -fuse-init-array has no effect when generating for MCU target

[Andrei via Phabricator via cfe-commits]

AndreiGrischenko updated this revision to Diff 97866.
AndreiGrischenko added a comment.

Thanks Craig for the good advice. You are right I can check llc with MCU triple 
using option -use-ctors. Please see updated patch.


https://reviews.llvm.org/D32543

Files:
  llvm/lib/Target/X86/X86TargetMachine.cpp
  llvm/test/CodeGen/X86/constructor.ll


Index: llvm/lib/Target/X86/X86TargetMachine.cpp
===================================================================
--- llvm/lib/Target/X86/X86TargetMachine.cpp
+++ llvm/lib/Target/X86/X86TargetMachine.cpp
@@ -87,7 +87,7 @@
 
   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>();
Index: llvm/test/CodeGen/X86/constructor.ll
===================================================================
--- llvm/test/CodeGen/X86/constructor.ll
+++ 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 @@
 ; 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



Index: llvm/lib/Target/X86/X86TargetMachine.cpp
===================================================================
--- llvm/lib/Target/X86/X86TargetMachine.cpp
+++ llvm/lib/Target/X86/X86TargetMachine.cpp
@@ -87,7 +87,7 @@
 
   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>();
Index: llvm/test/CodeGen/X86/constructor.ll
===================================================================
--- llvm/test/CodeGen/X86/constructor.ll
+++ 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 @@
 ; 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

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