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LLVM: correctly pad result tuple of airOverflow

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William Sengir 2022-04-23 02:54:52 -07:00 committed by Andrew Kelley
parent bb3532e775
commit a5ea22d069
1 changed files with 11 additions and 1 deletions
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12
src/codegen/llvm.zig
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@ -5605,14 +5605,24 @@ pub const FuncGen = struct {
const lhs_ty = self.air.typeOf(extra.lhs);
const scalar_ty = lhs_ty.scalarType();
const dest_ty = self.air.typeOfIndex(inst);
const intrinsic_name = if (scalar_ty.isSignedInt()) signed_intrinsic else unsigned_intrinsic;
const llvm_lhs_ty = try self.dg.llvmType(lhs_ty);
const llvm_dest_ty = try self.dg.llvmType(dest_ty);
const tg = self.dg.module.getTarget();
const llvm_fn = self.getIntrinsic(intrinsic_name, &.{llvm_lhs_ty});
const result_struct = self.builder.buildCall(llvm_fn, &[_]*const llvm.Value{ lhs, rhs }, 2, .Fast, .Auto, "");
return result_struct;
const result = self.builder.buildExtractValue(result_struct, 0, "");
const overflow_bit = self.builder.buildExtractValue(result_struct, 1, "");
var ty_buf: Type.Payload.Pointer = undefined;
const partial = self.builder.buildInsertValue(llvm_dest_ty.getUndef(), result, llvmFieldIndex(dest_ty, 0, tg, &ty_buf).?, "");
return self.builder.buildInsertValue(partial, overflow_bit, llvmFieldIndex(dest_ty, 1, tg, &ty_buf).?, "");
}
fn buildElementwiseCall(