Author: aturetsk
Date: Tue Apr 19 10:50:57 2016
New Revision: 266747
URL: http://llvm.org/viewvc/llvm-project?rev=266747=rev
Log:
Compilation for Intel MCU (Part 1/3)
Add -miamcu option which:
* Sets IAMCU triple
* Sets IAMCU ABI
* Enforces static compilation
Differential Revision: http://reviews.llvm.org/D18398
Added:
cfe/trunk/test/Driver/miamcu-opt.c (with props)
Modified:
cfe/trunk/include/clang/Driver/Options.td
cfe/trunk/lib/Driver/Driver.cpp
cfe/trunk/lib/Driver/Tools.cpp
Modified: cfe/trunk/include/clang/Driver/Options.td
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Options.td?rev=266747=266746=266747=diff
==
--- cfe/trunk/include/clang/Driver/Options.td (original)
+++ cfe/trunk/include/clang/Driver/Options.td Tue Apr 19 10:50:57 2016
@@ -1292,6 +1292,8 @@ def m3dnow : Flag<["-"], "m3dnow">, Grou
def m64 : Flag<["-"], "m64">, Group, Flags<[DriverOption,
CoreOption]>;
def mx32 : Flag<["-"], "mx32">, Group, Flags<[DriverOption,
CoreOption]>;
def mabi_EQ : Joined<["-"], "mabi=">, Group;
+def miamcu : Flag<["-"], "miamcu">, Group, Flags<[DriverOption,
CoreOption]>,
+ HelpText<"Use Intel MCU ABI">;
def malign_functions_EQ : Joined<["-"], "malign-functions=">,
Group;
def malign_loops_EQ : Joined<["-"], "malign-loops=">,
Group;
def malign_jumps_EQ : Joined<["-"], "malign-jumps=">,
Group;
Modified: cfe/trunk/lib/Driver/Driver.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Driver.cpp?rev=266747=266746=266747=diff
==
--- cfe/trunk/lib/Driver/Driver.cpp (original)
+++ cfe/trunk/lib/Driver/Driver.cpp Tue Apr 19 10:50:57 2016
@@ -278,6 +278,10 @@ DerivedArgList *Driver::TranslateInputAr
DAL->append(A);
}
+ // Enforce -static if -miamcu is present.
+ if (Args.hasArg(options::OPT_miamcu))
+DAL->AddFlagArg(0, Opts->getOption(options::OPT_static));
+
// Add a default value of -mlinker-version=, if one was given and the user
// didn't specify one.
#if defined(HOST_LINK_VERSION)
@@ -296,7 +300,8 @@ DerivedArgList *Driver::TranslateInputAr
///
/// This routine provides the logic to compute a target triple from various
/// args passed to the driver and the default triple string.
-static llvm::Triple computeTargetTriple(StringRef DefaultTargetTriple,
+static llvm::Triple computeTargetTriple(const Driver ,
+StringRef DefaultTargetTriple,
const ArgList ,
StringRef DarwinArchName = "") {
// FIXME: Already done in Compilation *Driver::BuildCompilation
@@ -341,8 +346,9 @@ static llvm::Triple computeTargetTriple(
return Target;
// Handle pseudo-target flags '-m64', '-mx32', '-m32' and '-m16'.
- if (Arg *A = Args.getLastArg(options::OPT_m64, options::OPT_mx32,
- options::OPT_m32, options::OPT_m16)) {
+ Arg *A = Args.getLastArg(options::OPT_m64, options::OPT_mx32,
+ options::OPT_m32, options::OPT_m16);
+ if (A) {
llvm::Triple::ArchType AT = llvm::Triple::UnknownArch;
if (A->getOption().matches(options::OPT_m64)) {
@@ -367,6 +373,25 @@ static llvm::Triple computeTargetTriple(
Target.setArch(AT);
}
+ // Handle -miamcu flag.
+ if (Args.hasArg(options::OPT_miamcu)) {
+if (Target.get32BitArchVariant().getArch() != llvm::Triple::x86)
+ D.Diag(diag::err_drv_unsupported_opt_for_target) << "-miamcu"
+ << Target.str();
+
+if (A && !A->getOption().matches(options::OPT_m32))
+ D.Diag(diag::err_drv_argument_not_allowed_with)
+ << "-miamcu" << A->getBaseArg().getAsString(Args);
+
+Target.setArch(llvm::Triple::x86);
+Target.setArchName("i586");
+Target.setEnvironment(llvm::Triple::UnknownEnvironment);
+Target.setEnvironmentName("");
+Target.setOS(llvm::Triple::ELFIAMCU);
+Target.setVendor(llvm::Triple::UnknownVendor);
+Target.setVendorName("intel");
+ }
+
return Target;
}
@@ -501,8 +526,8 @@ Compilation *Driver::BuildCompilation(Ar
DerivedArgList *TranslatedArgs = TranslateInputArgs(*UArgs);
// Owned by the host.
- const ToolChain =
- getToolChain(*UArgs, computeTargetTriple(DefaultTargetTriple, *UArgs));
+ const ToolChain = getToolChain(
+ *UArgs, computeTargetTriple(*this, DefaultTargetTriple, *UArgs));
// The compilation takes ownership of Args.
Compilation *C = new Compilation(*this, TC, UArgs.release(), TranslatedArgs);
@@ -1981,9 +2006,9 @@ InputInfo Driver::BuildJobsForActionNoCa
const char *ArchName = BAA->getArchName();
if (ArchName)
- TC = (
- C.getArgs(),
- computeTargetTriple(DefaultTargetTriple, C.getArgs(), ArchName));
+ TC = (C.getArgs(),
+