stage2: Use {s} instead of {} when formatting strings

2 files changed, 133 insertions, 7 deletions

diff --git a/src/codegen/c.zig b/src/codegen/c.zig
index c6c29942d9..b97e1590e3 100644
--- a/src/codegen/c.zig
+++ b/src/codegen/c.zig
@@ -235,7 +235,7 @@ fn renderFunctionSignature(
                 try writer.writeAll(", ");
             }
             try renderType(ctx, writer, tv.ty.fnParamType(index));
-            try writer.print(" arg{}", .{index});
+            try writer.print(" arg{d}", .{index});
         }
     }
     try writer.writeByte(')');
@@ -481,8 +481,9 @@ fn genBinOp(ctx: *Context, file: *C, inst: *Inst.BinOp, operator: []const u8) !?
     const rhs = try ctx.resolveInst(inst.rhs);
     const writer = file.main.writer();
     const name = try ctx.name();
-    try renderTypeAndName(ctx, writer, inst.base.ty, name, .Const);
-    try writer.print(" = {s} {s} {s};\n", .{ lhs, operator, rhs });
+    try writer.writeAll(indentation ++ "const ");
+    try renderType(ctx, writer, inst.base.ty);
+    try writer.print(" {s} = {s} " ++ operator ++ " {s};\n", .{ name, lhs, rhs });
     return name;
 }
 
@@ -587,7 +588,7 @@ fn genAsm(ctx: *Context, file: *C, as: *Inst.Assembly) !?[]u8 {
             const arg = as.args[index];
             try writer.writeAll("register ");
             try renderType(ctx, writer, arg.ty);
-            try writer.print(" {}_constant __asm__(\"{}\") = ", .{ reg, reg });
+            try writer.print(" {s}_constant __asm__(\"{s}\") = ", .{ reg, reg });
             // TODO merge constant handling into inst_map as well
             if (arg.castTag(.constant)) |c| {
                 try renderValue(ctx, writer, arg.ty, c.val);
@@ -597,13 +598,13 @@ fn genAsm(ctx: *Context, file: *C, as: *Inst.Assembly) !?[]u8 {
                 if (!gop.found_existing) {
                     return ctx.fail(ctx.decl.src(), "Internal error in C backend: asm argument not found in inst_map", .{});
                 }
-                try writer.print("{};\n    ", .{gop.entry.value});
+                try writer.print("{s};\n    ", .{gop.entry.value});
             }
         } else {
             return ctx.fail(ctx.decl.src(), "TODO non-explicit inline asm regs", .{});
         }
     }
-    try writer.print("__asm {} (\"{}\"", .{ if (as.is_volatile) @as([]const u8, "volatile") else "", as.asm_source });
+    try writer.print("__asm {s} (\"{s}\"", .{ if (as.is_volatile) @as([]const u8, "volatile") else "", as.asm_source });
     if (as.output) |o| {
         return ctx.fail(ctx.decl.src(), "TODO inline asm output", .{});
     }
@@ -619,7 +620,7 @@ fn genAsm(ctx: *Context, file: *C, as: *Inst.Assembly) !?[]u8 {
                 if (index > 0) {
                     try writer.writeAll(", ");
                 }
-                try writer.print("\"\"({}_constant)", .{reg});
+                try writer.print("\"\"({s}_constant)", .{reg});
             } else {
                 // This is blocked by the earlier test
                 unreachable;
diff --git a/src/codegen/llvm.zig b/src/codegen/llvm.zig
new file mode 100644
index 0000000000..3a1ebada3b
--- /dev/null
+++ b/src/codegen/llvm.zig
@@ -0,0 +1,125 @@
+const std = @import("std");
+const Allocator = std.mem.Allocator;
+
+pub fn targetTriple(allocator: *Allocator, target: std.Target) ![]u8 {
+    const llvm_arch = switch (target.cpu.arch) {
+        .arm => "arm",
+        .armeb => "armeb",
+        .aarch64 => "aarch64",
+        .aarch64_be => "aarch64_be",
+        .aarch64_32 => "aarch64_32",
+        .arc => "arc",
+        .avr => "avr",
+        .bpfel => "bpfel",
+        .bpfeb => "bpfeb",
+        .hexagon => "hexagon",
+        .mips => "mips",
+        .mipsel => "mipsel",
+        .mips64 => "mips64",
+        .mips64el => "mips64el",
+        .msp430 => "msp430",
+        .powerpc => "powerpc",
+        .powerpc64 => "powerpc64",
+        .powerpc64le => "powerpc64le",
+        .r600 => "r600",
+        .amdgcn => "amdgcn",
+        .riscv32 => "riscv32",
+        .riscv64 => "riscv64",
+        .sparc => "sparc",
+        .sparcv9 => "sparcv9",
+        .sparcel => "sparcel",
+        .s390x => "s390x",
+        .tce => "tce",
+        .tcele => "tcele",
+        .thumb => "thumb",
+        .thumbeb => "thumbeb",
+        .i386 => "i386",
+        .x86_64 => "x86_64",
+        .xcore => "xcore",
+        .nvptx => "nvptx",
+        .nvptx64 => "nvptx64",
+        .le32 => "le32",
+        .le64 => "le64",
+        .amdil => "amdil",
+        .amdil64 => "amdil64",
+        .hsail => "hsail",
+        .hsail64 => "hsail64",
+        .spir => "spir",
+        .spir64 => "spir64",
+        .kalimba => "kalimba",
+        .shave => "shave",
+        .lanai => "lanai",
+        .wasm32 => "wasm32",
+        .wasm64 => "wasm64",
+        .renderscript32 => "renderscript32",
+        .renderscript64 => "renderscript64",
+        .ve => "ve",
+        .spu_2 => return error.LLVMBackendDoesNotSupportSPUMarkII,
+    };
+    // TODO Add a sub-arch for some architectures depending on CPU features.
+
+    const llvm_os = switch (target.os.tag) {
+        .freestanding => "unknown",
+        .ananas => "ananas",
+        .cloudabi => "cloudabi",
+        .dragonfly => "dragonfly",
+        .freebsd => "freebsd",
+        .fuchsia => "fuchsia",
+        .ios => "ios",
+        .kfreebsd => "kfreebsd",
+        .linux => "linux",
+        .lv2 => "lv2",
+        .macos => "macosx",
+        .netbsd => "netbsd",
+        .openbsd => "openbsd",
+        .solaris => "solaris",
+        .windows => "windows",
+        .haiku => "haiku",
+        .minix => "minix",
+        .rtems => "rtems",
+        .nacl => "nacl",
+        .cnk => "cnk",
+        .aix => "aix",
+        .cuda => "cuda",
+        .nvcl => "nvcl",
+        .amdhsa => "amdhsa",
+        .ps4 => "ps4",
+        .elfiamcu => "elfiamcu",
+        .tvos => "tvos",
+        .watchos => "watchos",
+        .mesa3d => "mesa3d",
+        .contiki => "contiki",
+        .amdpal => "amdpal",
+        .hermit => "hermit",
+        .hurd => "hurd",
+        .wasi => "wasi",
+        .emscripten => "emscripten",
+        .uefi => "windows",
+        .other => "unknown",
+    };
+
+    const llvm_abi = switch (target.abi) {
+        .none => "unknown",
+        .gnu => "gnu",
+        .gnuabin32 => "gnuabin32",
+        .gnuabi64 => "gnuabi64",
+        .gnueabi => "gnueabi",
+        .gnueabihf => "gnueabihf",
+        .gnux32 => "gnux32",
+        .code16 => "code16",
+        .eabi => "eabi",
+        .eabihf => "eabihf",
+        .android => "android",
+        .musl => "musl",
+        .musleabi => "musleabi",
+        .musleabihf => "musleabihf",
+        .msvc => "msvc",
+        .itanium => "itanium",
+        .cygnus => "cygnus",
+        .coreclr => "coreclr",
+        .simulator => "simulator",
+        .macabi => "macabi",
+    };
+
+    return std.fmt.allocPrint(allocator, "{s}-unknown-{s}-{s}", .{ llvm_arch, llvm_os, llvm_abi });
+}