Commit 77516af118

Andrew Kelley <andrew@ziglang.org>
2021-09-01 07:50:10
stage2: update LLVM backend to for LLVM 13
There was some new code in master branch enumerating all the targets and a new target was added so we needed to add the glue code. This commit also introduces some build options to support experimental LLVM targets.
1 parent 7efca2e
Changed files (4)
src/codegen/llvm/bindings.zig
@@ -614,6 +614,10 @@ pub extern fn LLVMInitializeSystemZTargetInfo() void;
 pub extern fn LLVMInitializeWebAssemblyTargetInfo() void;
 pub extern fn LLVMInitializeX86TargetInfo() void;
 pub extern fn LLVMInitializeXCoreTargetInfo() void;
+pub extern fn LLVMInitializeM68kTargetInfo() void;
+pub extern fn LLVMInitializeCSKYTargetInfo() void;
+pub extern fn LLVMInitializeVETargetInfo() void;
+pub extern fn LLVMInitializeARCTargetInfo() void;
 
 pub extern fn LLVMInitializeAArch64Target() void;
 pub extern fn LLVMInitializeAMDGPUTarget() void;
@@ -632,6 +636,10 @@ pub extern fn LLVMInitializeSystemZTarget() void;
 pub extern fn LLVMInitializeWebAssemblyTarget() void;
 pub extern fn LLVMInitializeX86Target() void;
 pub extern fn LLVMInitializeXCoreTarget() void;
+pub extern fn LLVMInitializeM68kTarget() void;
+pub extern fn LLVMInitializeVETarget() void;
+pub extern fn LLVMInitializeCSKYTarget() void;
+pub extern fn LLVMInitializeARCTarget() void;
 
 pub extern fn LLVMInitializeAArch64TargetMC() void;
 pub extern fn LLVMInitializeAMDGPUTargetMC() void;
@@ -650,6 +658,10 @@ pub extern fn LLVMInitializeSystemZTargetMC() void;
 pub extern fn LLVMInitializeWebAssemblyTargetMC() void;
 pub extern fn LLVMInitializeX86TargetMC() void;
 pub extern fn LLVMInitializeXCoreTargetMC() void;
+pub extern fn LLVMInitializeM68kTargetMC() void;
+pub extern fn LLVMInitializeCSKYTargetMC() void;
+pub extern fn LLVMInitializeVETargetMC() void;
+pub extern fn LLVMInitializeARCTargetMC() void;
 
 pub extern fn LLVMInitializeAArch64AsmPrinter() void;
 pub extern fn LLVMInitializeAMDGPUAsmPrinter() void;
@@ -668,6 +680,9 @@ pub extern fn LLVMInitializeSystemZAsmPrinter() void;
 pub extern fn LLVMInitializeWebAssemblyAsmPrinter() void;
 pub extern fn LLVMInitializeX86AsmPrinter() void;
 pub extern fn LLVMInitializeXCoreAsmPrinter() void;
+pub extern fn LLVMInitializeM68kAsmPrinter() void;
+pub extern fn LLVMInitializeVEAsmPrinter() void;
+pub extern fn LLVMInitializeARCAsmPrinter() void;
 
 pub extern fn LLVMInitializeAArch64AsmParser() void;
 pub extern fn LLVMInitializeAMDGPUAsmParser() void;
@@ -684,6 +699,9 @@ pub extern fn LLVMInitializeSparcAsmParser() void;
 pub extern fn LLVMInitializeSystemZAsmParser() void;
 pub extern fn LLVMInitializeWebAssemblyAsmParser() void;
 pub extern fn LLVMInitializeX86AsmParser() void;
+pub extern fn LLVMInitializeM68kAsmParser() void;
+pub extern fn LLVMInitializeCSKYAsmParser() void;
+pub extern fn LLVMInitializeVEAsmParser() void;
 
 extern fn ZigLLDLinkCOFF(argc: c_int, argv: [*:null]const ?[*:0]const u8, can_exit_early: bool) c_int;
 extern fn ZigLLDLinkELF(argc: c_int, argv: [*:null]const ?[*:0]const u8, can_exit_early: bool) c_int;
src/codegen/llvm.zig
@@ -7,6 +7,7 @@ const link = @import("../link.zig");
 const log = std.log.scoped(.codegen);
 const math = std.math;
 
+const build_options = @import("build_options");
 const Module = @import("../Module.zig");
 const TypedValue = @import("../TypedValue.zig");
 const Zir = @import("../Zir.zig");
@@ -1969,7 +1970,7 @@ fn initializeLLVMTarget(arch: std.Target.Cpu.Arch) void {
             llvm.LLVMInitializeAMDGPUAsmPrinter();
             llvm.LLVMInitializeAMDGPUAsmParser();
         },
-        .arm, .armeb => {
+        .thumb, .thumbeb, .arm, .armeb => {
             llvm.LLVMInitializeARMTarget();
             llvm.LLVMInitializeARMTargetInfo();
             llvm.LLVMInitializeARMTargetMC();
@@ -2072,24 +2073,65 @@ fn initializeLLVMTarget(arch: std.Target.Cpu.Arch) void {
             llvm.LLVMInitializeXCoreTargetInfo();
             llvm.LLVMInitializeXCoreTargetMC();
             llvm.LLVMInitializeXCoreAsmPrinter();
-            // There is no LLVMInitializeXCoreAsmParser function available.
+            // There is no LLVMInitializeXCoreAsmParser function.
         },
-        .arc => {},
-        .csky => {},
-        .r600 => {},
-        .tce, .tcele => {},
-        .thumb, .thumbeb => {},
-        .le32, .le64 => {},
-        .amdil, .amdil64 => {},
-        .hsail, .hsail64 => {},
-        .spir, .spir64 => {},
-        .kalimba => {},
-        .shave => {},
-        .renderscript32 => {},
-        .renderscript64 => {},
-        .ve => {},
-        .spu_2 => {},
-        .spirv32 => {},
-        .spirv64 => {},
+        .m68k => {
+            if (build_options.llvm_has_m68k) {
+                llvm.LLVMInitializeM68kTarget();
+                llvm.LLVMInitializeM68kTargetInfo();
+                llvm.LLVMInitializeM68kTargetMC();
+                llvm.LLVMInitializeM68kAsmPrinter();
+                llvm.LLVMInitializeM68kAsmParser();
+            }
+        },
+        .csky => {
+            if (build_options.llvm_has_csky) {
+                llvm.LLVMInitializeCSKYTarget();
+                llvm.LLVMInitializeCSKYTargetInfo();
+                llvm.LLVMInitializeCSKYTargetMC();
+                // There is no LLVMInitializeCSKYAsmPrinter function.
+                llvm.LLVMInitializeCSKYAsmParser();
+            }
+        },
+        .ve => {
+            if (build_options.llvm_has_ve) {
+                llvm.LLVMInitializeVETarget();
+                llvm.LLVMInitializeVETargetInfo();
+                llvm.LLVMInitializeVETargetMC();
+                llvm.LLVMInitializeVEAsmPrinter();
+                llvm.LLVMInitializeVEAsmParser();
+            }
+        },
+        .arc => {
+            if (build_options.llvm_has_arc) {
+                llvm.LLVMInitializeARCTarget();
+                llvm.LLVMInitializeARCTargetInfo();
+                llvm.LLVMInitializeARCTargetMC();
+                llvm.LLVMInitializeARCAsmPrinter();
+                // There is no LLVMInitializeARCAsmParser function.
+            }
+        },
+
+        // LLVM backends that have no initialization functions.
+        .tce,
+        .tcele,
+        .r600,
+        .le32,
+        .le64,
+        .amdil,
+        .amdil64,
+        .hsail,
+        .hsail64,
+        .shave,
+        .spir,
+        .spir64,
+        .kalimba,
+        .renderscript32,
+        .renderscript64,
+        => {},
+
+        .spu_2 => unreachable, // LLVM does not support this backend
+        .spirv32 => unreachable, // LLVM does not support this backend
+        .spirv64 => unreachable, // LLVM does not support this backend
     }
 }
src/config.zig.in
@@ -1,4 +1,8 @@
 pub const have_llvm = true;
+pub const llvm_has_m68k = false;
+pub const llvm_has_csky = false;
+pub const llvm_has_ve = false;
+pub const llvm_has_arc = false;
 pub const version: [:0]const u8 = "@ZIG_VERSION@";
 pub const semver = @import("std").SemanticVersion.parse(version) catch unreachable;
 pub const enable_logging: bool = @ZIG_ENABLE_LOGGING_BOOL@;
build.zig
@@ -64,6 +64,26 @@ pub fn build(b: *Builder) !void {
     const omit_stage2 = b.option(bool, "omit-stage2", "Do not include stage2 behind a feature flag inside stage1") orelse false;
     const static_llvm = b.option(bool, "static-llvm", "Disable integration with system-installed LLVM, Clang, LLD, and libc++") orelse false;
     const enable_llvm = b.option(bool, "enable-llvm", "Build self-hosted compiler with LLVM backend enabled") orelse (is_stage1 or static_llvm);
+    const llvm_has_m68k = b.option(
+        bool,
+        "llvm-has-m68k",
+        "Whether LLVM has the experimental target m68k enabled",
+    ) orelse false;
+    const llvm_has_csky = b.option(
+        bool,
+        "llvm-has-csky",
+        "Whether LLVM has the experimental target csky enabled",
+    ) orelse false;
+    const llvm_has_ve = b.option(
+        bool,
+        "llvm-has-ve",
+        "Whether LLVM has the experimental target ve enabled",
+    ) orelse false;
+    const llvm_has_arc = b.option(
+        bool,
+        "llvm-has-arc",
+        "Whether LLVM has the experimental target arc enabled",
+    ) orelse false;
     const enable_macos_sdk = b.option(bool, "enable-macos-sdk", "Run tests requiring presence of macOS SDK and frameworks") orelse false;
     const config_h_path_option = b.option([]const u8, "config_h", "Path to the generated config.h");
 
@@ -115,6 +135,10 @@ pub fn build(b: *Builder) !void {
     exe_options.addOption(u32, "mem_leak_frames", mem_leak_frames);
     exe_options.addOption(bool, "skip_non_native", skip_non_native);
     exe_options.addOption(bool, "have_llvm", enable_llvm);
+    exe_options.addOption(bool, "llvm_has_m68k", llvm_has_m68k);
+    exe_options.addOption(bool, "llvm_has_csky", llvm_has_csky);
+    exe_options.addOption(bool, "llvm_has_ve", llvm_has_ve);
+    exe_options.addOption(bool, "llvm_has_arc", llvm_has_arc);
 
     if (enable_llvm) {
         const cmake_cfg = if (static_llvm) null else findAndParseConfigH(b, config_h_path_option);
@@ -261,6 +285,10 @@ pub fn build(b: *Builder) !void {
     test_stage2_options.addOption(bool, "is_stage1", is_stage1);
     test_stage2_options.addOption(bool, "omit_stage2", omit_stage2);
     test_stage2_options.addOption(bool, "have_llvm", enable_llvm);
+    test_stage2_options.addOption(bool, "llvm_has_m68k", llvm_has_m68k);
+    test_stage2_options.addOption(bool, "llvm_has_csky", llvm_has_csky);
+    test_stage2_options.addOption(bool, "llvm_has_ve", llvm_has_ve);
+    test_stage2_options.addOption(bool, "llvm_has_arc", llvm_has_arc);
     test_stage2_options.addOption(bool, "enable_qemu", is_qemu_enabled);
     test_stage2_options.addOption(bool, "enable_wine", is_wine_enabled);
     test_stage2_options.addOption(bool, "enable_wasmtime", is_wasmtime_enabled);