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Partially revert "LLVM: work around @floatFromInt bug"

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This partially reverts commit ab4d6bf468.
This commit is contained in:
Alex Rønne Petersen 2024-08-31 22:50:26 +02:00 committed by Andrew Kelley
parent 8c0902b7ae
commit 894b732630
1 changed files with 1 additions and 19 deletions
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20
src/codegen/llvm.zig
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@ -6796,29 +6796,11 @@ pub const FuncGen = struct {
const zcu = pt.zcu;
const ty_op = self.air.instructions.items(.data)[@intFromEnum(inst)].ty_op;
const workaround_operand = try self.resolveInst(ty_op.operand);
const operand = try self.resolveInst(ty_op.operand);
const operand_ty = self.typeOf(ty_op.operand);
const operand_scalar_ty = operand_ty.scalarType(zcu);
const is_signed_int = operand_scalar_ty.isSignedInt(zcu);
const operand = o: {
// Work around LLVM bug. See https://github.com/ziglang/zig/issues/17381.
const bit_size = operand_scalar_ty.bitSize(zcu);
for ([_]u8{ 8, 16, 32, 64, 128 }) |b| {
if (bit_size < b) {
break :o try self.wip.cast(
if (is_signed_int) .sext else .zext,
workaround_operand,
try o.builder.intType(b),
"",
);
} else if (bit_size == b) {
break :o workaround_operand;
}
}
break :o workaround_operand;
};
const dest_ty = self.typeOfIndex(inst);
const dest_scalar_ty = dest_ty.scalarType(zcu);
const dest_llvm_ty = try o.lowerType(dest_ty);