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stage2: sparcv9: Remove dbg_arg instruction

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This commit is contained in:
Koakuma 2022-04-21 20:02:27 +07:00 committed by Jakub Konka
parent ae201807f5
commit e76d52c74d
3 changed files with 1 additions and 38 deletions
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12
src/arch/sparcv9/CodeGen.zig
View File

@ -780,16 +780,6 @@ fn airArg(self: *Self, inst: Air.Inst.Index) !void {
// TODO Copy registers to the stack
const mcv = result;
_ = try self.addInst(.{
.tag = .dbg_arg,
.data = .{
.dbg_arg_info = .{
.air_inst = inst,
.arg_index = arg_index,
},
},
});
if (self.liveness.isUnused(inst))
return self.finishAirBookkeeping();
@ -1050,9 +1040,7 @@ fn airSwitch(self: *Self, inst: Air.Inst.Index) !void {
fn addInst(self: *Self, inst: Mir.Inst) error{OutOfMemory}!Mir.Inst.Index {
const gpa = self.gpa;
try self.mir_instructions.ensureUnusedCapacity(gpa, 1);
const result_index = @intCast(Air.Inst.Index, self.mir_instructions.len);
self.mir_instructions.appendAssumeCapacity(inst);
return result_index;

12
src/arch/sparcv9/Emit.zig
View File

@ -45,7 +45,6 @@ pub fn emitMir(
for (mir_tags) |tag, index| {
const inst = @intCast(u32, index);
switch (tag) {
.dbg_arg => try emit.mirDbgArg(inst),
.dbg_line => try emit.mirDbgLine(inst),
.dbg_prologue_end => try emit.mirDebugPrologueEnd(),
.dbg_epilogue_begin => try emit.mirDebugEpilogueBegin(),
@ -92,17 +91,6 @@ pub fn deinit(emit: *Emit) void {
emit.* = undefined;
}
fn mirDbgArg(emit: *Emit, inst: Mir.Inst.Index) !void {
const tag = emit.mir.instructions.items(.tag)[inst];
const dbg_arg_info = emit.mir.instructions.items(.data)[inst].dbg_arg_info;
_ = dbg_arg_info;
switch (tag) {
.dbg_arg => {}, // TODO try emit.genArgDbgInfo(dbg_arg_info.air_inst, dbg_arg_info.arg_index),
else => unreachable,
}
}
fn mirDbgLine(emit: *Emit, inst: Mir.Inst.Index) !void {
const tag = emit.mir.instructions.items(.tag)[inst];
const dbg_line_column = emit.mir.instructions.items(.data)[inst].dbg_line_column;

15
src/arch/sparcv9/Mir.zig
View File

@ -28,8 +28,6 @@ pub const Inst = struct {
data: Data,
pub const Tag = enum(u16) {
/// Pseudo-instruction: Argument
dbg_arg,
/// Pseudo-instruction: End of prologue
dbg_prologue_end,
/// Pseudo-instruction: Beginning of epilogue
@ -122,14 +120,6 @@ pub const Inst = struct {
/// how to interpret the data within.
// TODO this is a quick-n-dirty solution that needs to be cleaned up.
pub const Data = union {
/// Debug info: argument
///
/// Used by e.g. dbg_arg
dbg_arg_info: struct {
air_inst: Air.Inst.Index,
arg_index: usize,
},
/// Debug info: line and column
///
/// Used by e.g. dbg_line
@ -234,10 +224,7 @@ pub const Inst = struct {
// Note that in Debug builds, Zig is allowed to insert a secret field for safety checks.
comptime {
if (builtin.mode != .Debug) {
// TODO clean up the definition of Data before enabling this.
// I'll do that after the PoC backend can produce usable binaries.
// assert(@sizeOf(Data) == 8);
assert(@sizeOf(Data) == 8);
}
}
};