Add -fno-function-sections and -fno-data-sections. Since
-f{function,data}-sections had no tests at all, add some, and verify that the
-fno variants work as well.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192413 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Driver/Options.td b/include/clang/Driver/Options.td
index 7ca2547..268f481 100644
--- a/include/clang/Driver/Options.td
+++ b/include/clang/Driver/Options.td
@@ -832,10 +832,15 @@
def fwritable_strings : Flag<["-"], "fwritable-strings">, Group<f_Group>, Flags<[CC1Option]>,
HelpText<"Store string literals as writable data">;
def fzero_initialized_in_bss : Flag<["-"], "fzero-initialized-in-bss">, Group<f_Group>;
-def ffunction_sections: Flag <["-"], "ffunction-sections">, Group<f_Group>,
- Flags<[CC1Option]>, HelpText<"Place each function in its own section (ELF Only)">;
-def fdata_sections : Flag <["-"], "fdata-sections">, Group<f_Group>, Flags<[CC1Option]>,
- HelpText<"Place each data in its own section (ELF Only)">;
+def ffunction_sections : Flag<["-"], "ffunction-sections">, Group<f_Group>,
+ Flags<[CC1Option]>,
+ HelpText<"Place each function in its own section (ELF Only)">;
+def fno_function_sections : Flag<["-"], "fno-function-sections">,
+ Group<f_Group>, Flags<[CC1Option]>;
+def fdata_sections : Flag <["-"], "fdata-sections">, Group<f_Group>,
+ Flags<[CC1Option]>, HelpText<"Place each data in its own section (ELF Only)">;
+def fno_data_sections : Flag <["-"], "fno-data-sections">, Group<f_Group>,
+ Flags<[CC1Option]>;
def fdebug_types_section: Flag <["-"], "fdebug-types-section">, Group<f_Group>,
Flags<[CC1Option]>, HelpText<"Place debug types in their own section (ELF Only)">;
def g_Flag : Flag<["-"], "g">, Group<g_Group>,
diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index 38a4b95..94fd4b5 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -398,8 +398,10 @@
Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
- Opts.FunctionSections = Args.hasArg(OPT_ffunction_sections);
- Opts.DataSections = Args.hasArg(OPT_fdata_sections);
+ Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
+ OPT_fno_function_sections, false);
+ Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
+ OPT_fno_data_sections, false);
Opts.VectorizeBB = Args.hasArg(OPT_vectorize_slp_aggressive);
Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
diff --git a/test/CodeGen/sections.c b/test/CodeGen/sections.c
new file mode 100644
index 0000000..c03391f
--- /dev/null
+++ b/test/CodeGen/sections.c
@@ -0,0 +1,26 @@
+// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -S -o - < %s | FileCheck %s --check-prefix=PLAIN
+// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -S -ffunction-sections -fno-function-sections -o - < %s | FileCheck %s --check-prefix=PLAIN
+
+// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -S -ffunction-sections -o - < %s | FileCheck %s --check-prefix=FUNC_SECT
+// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -S -fno-function-sections -ffunction-sections -o - < %s | FileCheck %s --check-prefix=FUNC_SECT
+
+// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -S -fdata-sections -o - < %s | FileCheck %s --check-prefix=DATA_SECT
+// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -S -fno-data-sections -fdata-sections -o - < %s | FileCheck %s --check-prefix=DATA_SECT
+
+const int hello = 123;
+void world() {}
+
+// PLAIN-NOT: section
+// PLAIN: world:
+// PLAIN: section .rodata,
+// PLAIN: hello:
+
+// FUNC_SECT: section .text.world,
+// FUNC_SECT: world:
+// FUNC_SECT: section .rodata,
+// FUNC_SECT: hello:
+
+// DATA_SECT-NOT: section
+// DATA_SECT: world:
+// DATA_SECT: .section .rodata.hello,
+// DATA_SECT: hello: