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[MODS/IR]: Fix a bug in fix_branches_for_block

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This commit is contained in:
luccie 2025-08-10 22:52:04 +02:00
parent a1ab2659a3
commit d8642bfe0a
3 changed files with 10 additions and 11 deletions
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9
src/mods/vm.zig
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@ -123,7 +123,7 @@ pub const Runtime = struct {
loop: while (frame.program_counter < frame.code.opcodes.len) {
const opcode: IR.Opcode = frame.code.opcodes[frame.program_counter];
const index = frame.code.indices[frame.program_counter];
// std.debug.print("Executing at {X} {any} \n", .{frame.program_counter, opcode});
std.debug.print("Executing at {X} {any} {X}\n", .{frame.program_counter, opcode, if (opcode == IR.Opcode.br_if) @as(i64, @intCast(index.u32)) else -1});
switch (opcode) {
.@"unreachable" => {
std.debug.panic("Reached unreachable statement at IR counter {any}\n", .{frame.program_counter});
@ -134,7 +134,7 @@ pub const Runtime = struct {
continue;
},
.br_if => {
if (self.stack.items[self.stack.items.len - 1].i32 != 0) {
if (self.stack.pop().?.i32 != 0) {
frame.program_counter = index.u32;
continue;
}
@ -408,7 +408,7 @@ pub const Runtime = struct {
.i64_lt_u => {
const a = @as(u64, @intCast(self.stack.pop().?.i64));
const b = @as(u64, @intCast(self.stack.pop().?.i64));
try self.stack.append(Value{ .i32 = @intCast(@as(u1, @bitCast(b < a))) });
try self.stack.append(Value{ .i64 = @intCast(@as(u1, @bitCast(b < a))) });
},
.i64_gt_s => @panic("UNIMPLEMENTED"),
.i64_gt_u => @panic("UNIMPLEMENTED"),
@ -531,7 +531,7 @@ pub const Runtime = struct {
.i64_shl => {
const a = self.stack.pop().?.i64;
const b = self.stack.pop().?.i64;
try self.stack.append(.{ .i64 = (b << @as(u6, @intCast(a))) });
try self.stack.append(.{ .i64 = @intCast(b << @as(u6, @intCast(a))) });
},
.i64_shr_s => @panic("UNIMPLEMENTED"),
.i64_shr_u => {
@ -656,6 +656,7 @@ pub const Runtime = struct {
}
switch (f.typ) {
.internal => {
std.debug.print("Calling {d}\n", .{function});
const ir: IR = f.typ.internal.ir;
const function_type = f.func_type;
var frame = CallFrame{