zig cc: handle the -r flag

This makes -r treated the same as -c which is to output an object file.
Zig's ELF linker code already handles multiple object files into an
object file with the -r flag to LLD.

closes #11683

src/clang_options_data.zig

@@ -4002,7 +4002,7 @@ flagpd1("malign-double"),
 m("maltivec"),
 flagpd1("mamdgpu-ieee"),
 m("mamx-bf16"),
-flagpd1("mamx-fp16"),
+m("mamx-fp16"),
 m("mamx-int8"),
 m("mamx-tile"),
 flagpd1("marm"),
@@ -4027,10 +4027,10 @@ m("mavx512vl"),
 m("mavx512vnni"),
 m("mavx512vp2intersect"),
 m("mavx512vpopcntdq"),
-flagpd1("mavxifma"),
-flagpd1("mavxneconvert"),
+m("mavxifma"),
+m("mavxneconvert"),
 m("mavxvnni"),
-flagpd1("mavxvnniint8"),
+m("mavxvnniint8"),
 flagpd1("mbackchain"),
 flagpd1("mbig-endian"),
 m("mbmi"),
@@ -4039,6 +4039,7 @@ flagpd1("mbranch-likely"),
 flagpd1("mbranch-target-enforce"),
 flagpd1("mbranches-within-32B-boundaries"),
 m("mbulk-memory"),
+m("mcabac"),
 flagpd1("mcheck-zero-division"),
 m("mcldemote"),
 m("mclflushopt"),
@@ -4047,7 +4048,7 @@ m("mclzero"),
 flagpd1("mcmodel=medany"),
 flagpd1("mcmodel=medlow"),
 m("mcmpb"),
-flagpd1("mcmpccxadd"),
+m("mcmpccxadd"),
 flagpd1("mcmse"),
 flagpd1("mcode-object-v3"),
 flagpd1("mconstant-cfstrings"),
@@ -4185,7 +4186,7 @@ m("mno-aes"),
 m("mno-altivec"),
 flagpd1("mno-amdgpu-ieee"),
 m("mno-amx-bf16"),
-flagpd1("mno-amx-fp16"),
+m("mno-amx-fp16"),
 m("mno-amx-int8"),
 m("mno-amx-tile"),
 m("mno-atomics"),
@@ -4207,10 +4208,10 @@ m("mno-avx512vl"),
 m("mno-avx512vnni"),
 m("mno-avx512vp2intersect"),
 m("mno-avx512vpopcntdq"),
-flagpd1("mno-avxifma"),
-flagpd1("mno-avxneconvert"),
+m("mno-avxifma"),
+m("mno-avxneconvert"),
 m("mno-avxvnni"),
-flagpd1("mno-avxvnniint8"),
+m("mno-avxvnniint8"),
 flagpd1("mno-backchain"),
 m("mno-bmi"),
 m("mno-bmi2"),
@@ -4223,7 +4224,7 @@ m("mno-clflushopt"),
 m("mno-clwb"),
 m("mno-clzero"),
 m("mno-cmpb"),
-flagpd1("mno-cmpccxadd"),
+m("mno-cmpccxadd"),
 flagpd1("mno-code-object-v3"),
 flagpd1("mno-constant-cfstrings"),
 flagpd1("mno-constructor-aliases"),
@@ -4249,7 +4250,7 @@ flagpd1("mno-fix-cortex-a72-aes-1655431"),
 m("mno-float128"),
 m("mno-fma"),
 m("mno-fma4"),
-flagpd1("mno-fmv"),
+m("mno-fmv"),
 flagpd1("mno-fp-ret-in-387"),
 m("mno-fprnd"),
 m("mno-fpu"),
@@ -4322,13 +4323,13 @@ m("mno-popcntd"),
 m("mno-power10-vector"),
 m("mno-power8-vector"),
 m("mno-power9-vector"),
-flagpd1("mno-prefetchi"),
+m("mno-prefetchi"),
 m("mno-prefetchwt1"),
 flagpd1("mno-prefixed"),
 m("mno-prfchw"),
 m("mno-ptwrite"),
 flagpd1("mno-pure-code"),
-flagpd1("mno-raoint"),
+m("mno-raoint"),
 m("mno-rdpid"),
 m("mno-rdpru"),
 m("mno-rdrnd"),
@@ -4438,7 +4439,7 @@ m("mpower10-vector"),
 m("mcrypto"),
 m("mpower8-vector"),
 m("mpower9-vector"),
-flagpd1("mprefetchi"),
+m("mprefetchi"),
 m("mprefetchwt1"),
 flagpd1("mprefixed"),
 m("mprfchw"),
@@ -4446,7 +4447,7 @@ m("mprivileged"),
 m("mptwrite"),
 flagpd1("mpure-code"),
 flagpd1("mqdsp6-compat"),
-flagpd1("mraoint"),
+m("mraoint"),
 m("mrdpid"),
 m("mrdpru"),
 m("mrdrnd"),
@@ -4533,9 +4534,9 @@ m("mv67"),
 flagpd1("mv67t"),
 m("mv68"),
 m("mv69"),
-flagpd1("mv71"),
+m("mv71"),
 flagpd1("mv71t"),
-flagpd1("mv73"),
+m("mv73"),
 m("mvaes"),
 m("mvirt"),
 m("mvis"),
@@ -4950,7 +4951,14 @@ flagpd1("print-stats"),
 flagpd1("private_bundle"),
 flagpd1("pthread"),
 flagpd1("pthreads"),
-flagpd1("r"),
+.{
+    .name = "r",
+    .syntax = .flag,
+    .zig_equivalent = .r,
+    .pd1 = true,
+    .pd2 = false,
+    .psl = false,
+},
 .{
     .name = "rdynamic",
     .syntax = .flag,

src/main.zig

@@ -1569,7 +1569,7 @@ fn buildOutputType(
                             out_path = it.only_arg;
                         }
                     },
-                    .c => c_out_mode = .object, // -c
+                    .c, .r => c_out_mode = .object, // -c or -r
                     .asm_only => c_out_mode = .assembly, // -S
                     .preprocess_only => c_out_mode = .preprocessor, // -E
                     .emit_llvm => emit_llvm = true,
@@ -5134,6 +5134,7 @@ pub const ClangArgIterator = struct {
         target,
         o,
         c,
+        r,
         m,
         x,
         other,

tools/update_clang_options.zig

@@ -34,6 +34,10 @@ const known_options = [_]KnownOpt{
         .name = "c",
         .ident = "c",
     },
+    .{
+        .name = "r",
+        .ident = "r",
+    },
     .{
         .name = "l",
         .ident = "l",