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Use new LLVM IR builder API in bit op lowering

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antlilja 2023-08-06 00:59:56 +02:00
parent 86f61a9d26
commit e149f1e1de
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1 changed files with 11 additions and 61 deletions
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72
src/codegen/llvm.zig
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@ -5100,11 +5100,11 @@ pub const FuncGen = struct {
.memcpy => try self.airMemcpy(inst),
.set_union_tag => try self.airSetUnionTag(inst),
.get_union_tag => try self.airGetUnionTag(inst),
.clz => try self.airClzCtz(inst, "llvm.ctlz"),
.ctz => try self.airClzCtz(inst, "llvm.cttz"),
.popcount => try self.airBitOp(inst, "llvm.ctpop"),
.byte_swap => try self.airByteSwap(inst, "llvm.bswap"),
.bit_reverse => try self.airBitOp(inst, "llvm.bitreverse"),
.clz => try self.airClzCtz(inst, .@"llvm.ctlz."),
.ctz => try self.airClzCtz(inst, .@"llvm.cttz."),
.popcount => try self.airBitOp(inst, .@"llvm.ctpop."),
.byte_swap => try self.airByteSwap(inst),
.bit_reverse => try self.airBitOp(inst, .@"llvm.bitreverse."),
.tag_name => try self.airTagName(inst),
.error_name => try self.airErrorName(inst),
.splat => try self.airSplat(inst),
@ -9526,64 +9526,29 @@ pub const FuncGen = struct {
return self.buildFloatOp(.neg, operand_ty, 1, .{operand});
}
fn airClzCtz(self: *FuncGen, inst: Air.Inst.Index, llvm_fn_name: []const u8) !Builder.Value {
fn airClzCtz(self: *FuncGen, inst: Air.Inst.Index, intrinsic: Builder.Function.Instruction.Tag) !Builder.Value {
const o = self.dg.object;
const ty_op = self.air.instructions.items(.data)[inst].ty_op;
const operand_ty = self.typeOf(ty_op.operand);
const operand = try self.resolveInst(ty_op.operand);
const llvm_operand_ty = try o.lowerType(operand_ty);
const llvm_fn_ty = try o.builder.fnType(llvm_operand_ty, &.{ llvm_operand_ty, .i1 }, .normal);
const fn_val = try self.getIntrinsic(llvm_fn_name, &.{llvm_operand_ty});
const wrong_size_result = try self.wip.bin(intrinsic, operand, (try o.builder.intConst(.i1, 0)).toValue(), "");
const params = [_]*llvm.Value{
operand.toLlvm(&self.wip),
Builder.Constant.false.toLlvm(&o.builder),
};
const wrong_size_result = (try self.wip.unimplemented(llvm_operand_ty, "")).finish(
self.builder.buildCallOld(
llvm_fn_ty.toLlvm(&o.builder),
fn_val,
&params,
params.len,
.C,
.Auto,
"",
),
&self.wip,
);
const result_ty = self.typeOfIndex(inst);
return self.wip.conv(.unsigned, wrong_size_result, try o.lowerType(result_ty), "");
}
fn airBitOp(self: *FuncGen, inst: Air.Inst.Index, llvm_fn_name: []const u8) !Builder.Value {
fn airBitOp(self: *FuncGen, inst: Air.Inst.Index, intrinsic: Builder.Function.Instruction.Tag) !Builder.Value {
const o = self.dg.object;
const ty_op = self.air.instructions.items(.data)[inst].ty_op;
const operand_ty = self.typeOf(ty_op.operand);
const operand = try self.resolveInst(ty_op.operand);
const llvm_operand_ty = try o.lowerType(operand_ty);
const llvm_fn_ty = try o.builder.fnType(llvm_operand_ty, &.{llvm_operand_ty}, .normal);
const fn_val = try self.getIntrinsic(llvm_fn_name, &.{llvm_operand_ty});
const wrong_size_result = try self.wip.un(intrinsic, operand, "");
const params = [_]*llvm.Value{operand.toLlvm(&self.wip)};
const wrong_size_result = (try self.wip.unimplemented(llvm_operand_ty, "")).finish(
self.builder.buildCallOld(
llvm_fn_ty.toLlvm(&o.builder),
fn_val,
&params,
params.len,
.C,
.Auto,
"",
),
&self.wip,
);
const result_ty = self.typeOfIndex(inst);
return self.wip.conv(.unsigned, wrong_size_result, try o.lowerType(result_ty), "");
}
fn airByteSwap(self: *FuncGen, inst: Air.Inst.Index, llvm_fn_name: []const u8) !Builder.Value {
fn airByteSwap(self: *FuncGen, inst: Air.Inst.Index) !Builder.Value {
const o = self.dg.object;
const mod = o.module;
const ty_op = self.air.instructions.items(.data)[inst].ty_op;
@ -9611,22 +9576,7 @@ pub const FuncGen = struct {
bits = bits + 8;
}
const llvm_fn_ty = try o.builder.fnType(llvm_operand_ty, &.{llvm_operand_ty}, .normal);
const fn_val = try self.getIntrinsic(llvm_fn_name, &.{llvm_operand_ty});
const params = [_]*llvm.Value{operand.toLlvm(&self.wip)};
const wrong_size_result = (try self.wip.unimplemented(llvm_operand_ty, "")).finish(
self.builder.buildCallOld(
llvm_fn_ty.toLlvm(&o.builder),
fn_val,
&params,
params.len,
.C,
.Auto,
"",
),
&self.wip,
);
const wrong_size_result = try self.wip.un(.@"llvm.bswap.", operand, "");
const result_ty = self.typeOfIndex(inst);
return self.wip.conv(.unsigned, wrong_size_result, try o.lowerType(result_ty), "");