Kim Jin Chul has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/8747 )

Change subject: IMPALA-5993: Fix the file offset in value parsing error
......................................................................


Patch Set 1:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/8747/1/be/src/exec/hdfs-scanner.cc
File be/src/exec/hdfs-scanner.cc:

http://gerrit.cloudera.org:8080/#/c/8747/1/be/src/exec/hdfs-scanner.cc@264
PS1, Line 264: // define i1 @WriteCompleteTuple(%"class.impala::HdfsScanner"* 
%this,
             : //                               %"class.impala::MemPool"* %pool,
             : //                               
%"struct.impala::FieldLocation"* %fields,
             : //                               %"class.impala::Tuple"* %tuple,
             : //                               %"class.impala::TupleRow"* 
%tuple_row,
             : //                               %"class.impala::Tuple"* 
%template,
             : //                               i8* %error_fields, i8* 
%error_in_row) {
             : // entry:
             : //   %tuple_ptr = bitcast %"class.impala::Tuple"* %tuple
             : //                to <{ %"struct.impala::StringValue", i8 }>*
             : //   %tuple_ptr1 = bitcast %"class.impala::Tuple"* %template
             : //                 to <{ %"struct.impala::StringValue", i8 }>*
             : //   %int8_ptr = bitcast <{ %"struct.impala::StringValue", i8 
}>* %tuple_ptr to i8*
             : //   %null_bytes_ptr = getelementptr i8, i8* %int8_ptr, i32 16
             : //   call void @llvm.memset.p0i8.i64(i8* %null_bytes_ptr, i8 0, 
i64 1, i32 0, i1 false)
             : //   %0 = bitcast %"class.impala::TupleRow"* %tuple_row
             : //        to <{ %"struct.impala::StringValue", i8 }>**
             : //   %1 = getelementptr <{ %"struct.impala::StringValue", i8 }>*,
             : //                      <{ %"struct.impala::StringValue", i8 
}>** %0, i32 0
             : //   store <{ %"struct.impala::StringValue", i8 }>* %tuple_ptr,
             : //         <{ %"struct.impala::StringValue", i8 }>** %1
             : //   br label %parse
             : //
             : // parse:                                            ; preds = 
%entry
             : //  %data_ptr = getelementptr %"struct.impala::FieldLocation",
             : //                            %"struct.impala::FieldLocation"* 
%fields, i32 0, i32 0
             : //  %len_ptr = getelementptr %"struct.impala::FieldLocation",
             : //                           %"struct.impala::FieldLocation"* 
%fields, i32 0, i32 1
             : //  %slot_error_ptr = getelementptr i8, i8* %error_fields, i32 0
             : //  %data = load i8*, i8** %data_ptr
             : //  %len = load i32, i32* %len_ptr
             : //  %2 = call i1 @WriteSlot(<{ %"struct.impala::StringValue", i8 
}>* %tuple_ptr,
             : //                          i8* %data, i32 %len)
             : //  %slot_parse_error = xor i1 %2, true
             : //  %error_in_row2 = or i1 false, %slot_parse_error
             : //  %3 = zext i1 %slot_parse_error to i8
             : //  store i8 %3, i8* %slot_error_ptr
             : //  %4 = call %"class.impala::ScalarExprEvaluator"* 
@GetConjunctCtx(
             : //    %"class.impala::HdfsScanner"* %this, i32 0)
             : //  %conjunct_eval = call i16 
@"impala::Operators::Eq_StringVal_StringValWrapper"(
             : //    %"class.impala::ScalarExprEvaluator"* %4, 
%"class.impala::TupleRow"* %tuple_row)
             : //  %5 = ashr i16 %conjunct_eval, 8
             : //  %6 = trunc i16 %5 to i8
             : //  %val = trunc i8 %6 to i1
             : //  br i1 %val, label %parse3, label %eval_fail
             : //
             : // parse3:                                           ; preds = 
%parse
             : //   %7 = zext i1 %error_in_row2 to i8
             : //   store i8 %7, i8* %error_in_row
             : //   ret i1 true
             : //
             : // eval_fail:                                        ; preds = 
%parse
             : //   ret i1 false
             : // }
Should I maintain this? When I dump IR, this comment has not been updated for a 
while. I would like to remove the old IR completely because it is meaningless 
if we spend our precious time.



--
To view, visit http://gerrit.cloudera.org:8080/8747
To unsubscribe, visit http://gerrit.cloudera.org:8080/settings

Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I4a4ac3199ffe12fcce0bf792b3e6ce529b9af61f
Gerrit-Change-Number: 8747
Gerrit-PatchSet: 1
Gerrit-Owner: Kim Jin Chul <jinc...@gmail.com>
Gerrit-Reviewer: Kim Jin Chul <jinc...@gmail.com>
Gerrit-Reviewer: Lars Volker <l...@cloudera.com>
Gerrit-Comment-Date: Mon, 04 Dec 2017 15:16:16 +0000
Gerrit-HasComments: Yes

Reply via email to