[driver] Allow the driver to directly accept the -no-implicit-float option, so that the
generation of implicit floating point instructions can be disable for ARM.
rdar://11409142
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156942 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Driver/CC1Options.td b/include/clang/Driver/CC1Options.td
index 90933f7..8288c00 100644
--- a/include/clang/Driver/CC1Options.td
+++ b/include/clang/Driver/CC1Options.td
@@ -146,8 +146,6 @@
HelpText<"The string to embed in the Dwarf debug flags record.">;
def fforbid_guard_variables : Flag<"-fforbid-guard-variables">,
HelpText<"Emit an error if a C++ static local initializer would need a guard variable">;
-def no_implicit_float : Flag<"-no-implicit-float">,
- HelpText<"Don't generate implicit floating point instructions (x86-only)">;
def fdump_vtable_layouts : Flag<"-fdump-vtable-layouts">,
HelpText<"Dump the layouts of all vtables that will be emitted in a translation unit">;
def femit_coverage_notes : Flag<"-femit-coverage-notes">,
diff --git a/include/clang/Driver/Options.td b/include/clang/Driver/Options.td
index 62b8d3a..5b50485 100644
--- a/include/clang/Driver/Options.td
+++ b/include/clang/Driver/Options.td
@@ -800,6 +800,8 @@
def msmall_data_threshold_EQ : Joined <"-msmall-data-threshold=">, Group<m_Group>;
def msoft_float : Flag<"-msoft-float">, Group<m_Group>, Flags<[CC1Option]>,
HelpText<"Use software floating point">;
+def no_implicit_float : Flag<"-no-implicit-float">, Flags<[CC1Option]>,
+ HelpText<"Don't generate implicit floating point instructions">;
def msse2 : Flag<"-msse2">, Group<m_x86_Features_Group>;
def msse3 : Flag<"-msse3">, Group<m_x86_Features_Group>;
def msse4a : Flag<"-msse4a">, Group<m_x86_Features_Group>;
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index fcfee50..8845f903 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -755,6 +755,9 @@
if (A->getOption().matches(options::OPT_mno_global_merge))
CmdArgs.push_back("-mno-global-merge");
}
+
+ if (Args.hasArg(options::OPT_no_implicit_float))
+ CmdArgs.push_back("-no-implicit-float");
}
// Get default architecture.
diff --git a/test/Driver/flags.c b/test/Driver/flags.c
index 7a885b6..fdb3e20 100644
--- a/test/Driver/flags.c
+++ b/test/Driver/flags.c
@@ -7,3 +7,5 @@
// RUN: %clang -target i386-apple-darwin9 -### -S -mno-soft-float %s -msoft-float 2> %t.log
// RUN: grep '"-no-implicit-float"' %t.log
+// RUN: %clang -target armv7-apple-darwin10 -### -S -no-implicit-float %s 2> %t.log
+// RUN: grep '"-no-implicit-float"' %t.log | count 1
