Revert "Debug info: On ARM ensure that the data sections come before the"

Cut back on the cargo cult. The order of __DATA sections doesn't affect
generated code.

This reverts commit r197922.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199680 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARMAsmPrinter.cpp b/lib/Target/ARM/ARMAsmPrinter.cpp
index f688407d6943fe51d558ff63495598c15edac0f4..0127c488362d9397c4499da8f15dd83973ce29a5 100644 (file)
--- a/lib/Target/ARM/ARMAsmPrinter.cpp
+++ b/lib/Target/ARM/ARMAsmPrinter.cpp
@@ -489,19 +489,6 @@ void ARMAsmPrinter::EmitStartOfAsmFile(Module &M) {
                                    SectionKind::getText());
       OutStreamer.SwitchSection(StaticInitSect);
     }
-
-    // Compiling with debug info should not affect the code
-    // generation!  Since some of the data sections are first switched
-    // to only in ASMPrinter::doFinalization(), the debug info
-    // sections would come before the data sections in the object
-    // file.  This is problematic, since PC-relative loads have to use
-    // different instruction sequences in order to reach global data
-    // in the same object file.
-    OutStreamer.SwitchSection(getObjFileLowering().getCStringSection());
-    OutStreamer.SwitchSection(getObjFileLowering().getDataSection());
-    OutStreamer.SwitchSection(getObjFileLowering().getDataCommonSection());
-    OutStreamer.SwitchSection(getObjFileLowering().getDataBSSSection());
-    OutStreamer.SwitchSection(getObjFileLowering().getNonLazySymbolPointerSection());
   }
 
   // Use unified assembler syntax.

diff --git a/test/DebugInfo/ARM/sectionorder.ll b/test/DebugInfo/ARM/sectionorder.ll
deleted file mode 100644 (file)
index 4e9b226..0000000
--- a/test/DebugInfo/ARM/sectionorder.ll
+++ /dev/null
@@ -1,26 +0,0 @@
-; RUN: llc  -filetype=asm %s -o - | FileCheck %s
-
-; Verifies that the DWARF* sections come _after_ the data sections.
-; rdar://problem/15623193
-
-; CHECK: .section      __TEXT,__text,
-; CHECK-NOT: __DWARF,__debug
-; CHECK: .section      __TEXT,__cstring,cstring_literals
-; CHECK-NOT: __DWARF,__debug
-; CHECK: .section      __DATA,__data
-; CHECK-NOT: __DWARF,__debug
-; CHECK: .section      __DATA,__common
-; CHECK-NOT: __DWARF,__debug
-; CHECK: .section      __DATA,__bss
-; CHECK-NOT: __DWARF,__debug
-; CHECK: .section      __DATA,__nl_symbol_ptr,non_lazy_symbol_pointers
-target triple = "thumbv7-apple-ios"
-
-!llvm.module.flags = !{!3, !4}
-!llvm.dbg.cu = !{!0}
-
-!0 = metadata !{i32 786449, i32 0, i32 12, metadata !"test.c", metadata !"/Volumes/Data/radar/15623193", metadata !"LLVM", i1 true, i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !1} ; [ DW_TAG_compile_unit ] [/Volumes/Data/radar/15623193/test.c] [DW_LANG_C99]
-!1 = metadata !{metadata !2}
-!2 = metadata !{i32 0}
-!3 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
-!4 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}