zig

commit 487ee79ec92a69832293d10b16beb4c8471af7ac (tree)
parent a3cfb15fb4be719fe11f231113020532ad0b1258
Author: Veikka Tuominen <git@vexu.eu>
Date:   Sat, 12 Mar 2022 12:33:32 +0200

stage2 llvm: do not use getIntrinsic for airFrameAddress

getIntrinsic gets the return type wrong so we have to add the function manually

Diffstat:
M
lib/std/debug.zig
 | 
1
-
M
src/codegen/llvm.zig
 | 
9
++++++++-

2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/lib/std/debug.zig b/lib/std/debug.zig
@@ -1630,7 +1630,6 @@ fn getSymbolFromDwarf(address: u64, di: *DW.DwarfInfo) !SymbolInfo {
             .symbol_name = nosuspend di.getSymbolName(address) orelse "???",
             .compile_unit_name = compile_unit.die.getAttrString(di, DW.AT.name) catch |err| switch (err) {
                 error.MissingDebugInfo, error.InvalidDebugInfo => "???",
-                else => return err,
             },
             .line_info = nosuspend di.getLineNumberInfo(compile_unit.*, address) catch |err| switch (err) {
                 error.MissingDebugInfo, error.InvalidDebugInfo => null,
diff --git a/src/codegen/llvm.zig b/src/codegen/llvm.zig
@@ -5347,7 +5347,14 @@ pub const FuncGen = struct {
         if (self.liveness.isUnused(inst)) return null;
 
         const llvm_i32 = self.context.intType(32);
-        const llvm_fn = self.getIntrinsic("llvm.frameaddress", &.{llvm_i32});
+        const llvm_fn_name = "llvm.frameaddress.p0i8";
+        const llvm_fn = self.dg.object.llvm_module.getNamedFunction(llvm_fn_name) orelse blk: {
+            const llvm_p0i8 = self.context.intType(8).pointerType(0);
+            const param_types = [_]*const llvm.Type{llvm_i32};
+            const fn_type = llvm.functionType(llvm_p0i8, &param_types, param_types.len, .False);
+            break :blk self.dg.object.llvm_module.addFunction(llvm_fn_name, fn_type);
+        };
+
         const params = [_]*const llvm.Value{llvm_i32.constNull()};
         const ptr_val = self.builder.buildCall(llvm_fn, &params, params.len, .Fast, .Auto, "");
         const llvm_usize = try self.dg.llvmType(Type.usize);