`clang -S -o - file.c -masm=att` will write assembly to stdout in at&t syntax
(the default), `-masm=intel` will instead output intel style asm.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@208683
91177308-0d34-0410-b5e6-
96231b3b80d8
def m64 : Flag<["-"], "m64">, Group<m_Group>, Flags<[DriverOption, CoreOption]>;
def mabi_EQ : Joined<["-"], "mabi=">, Group<m_Group>;
def march_EQ : Joined<["-"], "march=">, Group<m_Group>;
+def masm_EQ : Joined<["-"], "masm=">, Group<m_Group>, Flags<[DriverOption]>;
def mcmodel_EQ : Joined<["-"], "mcmodel=">, Group<m_Group>;
def mconstant_cfstrings : Flag<["-"], "mconstant-cfstrings">, Group<clang_ignored_m_Group>;
def mcpu_EQ : Joined<["-"], "mcpu=">, Group<m_Group>;
}
if (NoImplicitFloat)
CmdArgs.push_back("-no-implicit-float");
+
+ if (Arg *A = Args.getLastArg(options::OPT_masm_EQ)) {
+ StringRef Value = A->getValue();
+ if (Value == "intel" || Value == "att") {
+ CmdArgs.push_back("-mllvm");
+ CmdArgs.push_back(Args.MakeArgString("-x86-asm-syntax=" + Value));
+ } else {
+ getToolChain().getDriver().Diag(diag::err_drv_unsupported_option_argument)
+ << A->getOption().getName() << Value;
+ }
+ }
}
static inline bool HasPICArg(const ArgList &Args) {
--- /dev/null
+// RUN: %clang -target i386-unknown-linux -masm=intel %s -S -o - | FileCheck --check-prefix=CHECK-INTEL %s
+// RUN: %clang -target i386-unknown-linux -masm=att %s -S -o - | FileCheck --check-prefix=CHECK-ATT %s
+// RUN: not %clang -target i386-unknown-linux -masm=somerequired %s -S -o - 2>&1 | FileCheck --check-prefix=CHECK-SOMEREQUIRED %s
+// RUN: %clang -target arm-unknown-eabi -masm=intel %s -S -o - 2>&1 | FileCheck --check-prefix=CHECK-ARM %s
+
+int f() {
+// CHECK-ATT: movl $0, %eax
+// CHECK-INTEL: mov eax, 0
+// CHECK-SOMEREQUIRED: error: unsupported argument 'somerequired' to option 'masm='
+// CHECK-ARM: warning: argument unused during compilation: '-masm=intel'
+ return 0;
+}