diff options
Diffstat (limited to 'src/codegen')
| -rw-r--r-- | src/codegen/c.zig | 5 | ||||
| -rw-r--r-- | src/codegen/llvm.zig | 10 |
2 files changed, 15 insertions, 0 deletions
diff --git a/src/codegen/c.zig b/src/codegen/c.zig index b086d15b48..070aa0a238 100644 --- a/src/codegen/c.zig +++ b/src/codegen/c.zig @@ -1125,6 +1125,7 @@ fn genBody(f: *Function, body: []const Air.Inst.Index) error{ AnalysisFail, OutO .arg => airArg(f), .breakpoint => try airBreakpoint(f), + .ret_addr => try airRetAddr(f), .unreach => try airUnreach(f), .fence => try airFence(f, inst), @@ -2191,6 +2192,10 @@ fn airBreakpoint(f: *Function) !CValue { return CValue.none; } +fn airRetAddr(f: *Function) !CValue { + return f.fail("TODO implement codegen for airRetAddr", .{}); +} + fn airFence(f: *Function, inst: Air.Inst.Index) !CValue { const atomic_order = f.air.instructions.items(.data)[inst].fence; const writer = f.object.writer(); diff --git a/src/codegen/llvm.zig b/src/codegen/llvm.zig index d12dad2403..0a2b12dd1e 100644 --- a/src/codegen/llvm.zig +++ b/src/codegen/llvm.zig @@ -1747,6 +1747,7 @@ pub const FuncGen = struct { .br => try self.airBr(inst), .switch_br => try self.airSwitchBr(inst), .breakpoint => try self.airBreakpoint(inst), + .ret_addr => try self.airRetAddr(inst), .call => try self.airCall(inst), .cond_br => try self.airCondBr(inst), .intcast => try self.airIntCast(inst), @@ -3550,6 +3551,15 @@ pub const FuncGen = struct { return null; } + fn airRetAddr(self: *FuncGen, inst: Air.Inst.Index) !?*const llvm.Value { + _ = inst; + const i32_zero = self.context.intType(32).constNull(); + const usize_llvm_ty = try self.dg.llvmType(Type.usize); + const llvm_fn = self.getIntrinsic("llvm.returnaddress", &.{}); + const ptr_val = self.builder.buildCall(llvm_fn, &[_]*const llvm.Value{i32_zero}, 1, .Fast, .Auto, ""); + return self.builder.buildPtrToInt(ptr_val, usize_llvm_ty, ""); + } + fn airFence(self: *FuncGen, inst: Air.Inst.Index) !?*const llvm.Value { const atomic_order = self.air.instructions.items(.data)[inst].fence; const llvm_memory_order = toLlvmAtomicOrdering(atomic_order); |