Antoine Pitrou created ARROW-5272: ------------------------------------- Summary: [C++] [Gandiva] JIT code executed over uninitialized values Key: ARROW-5272 URL: https://issues.apache.org/jira/browse/ARROW-5272 Project: Apache Arrow Issue Type: Bug Components: C++ - Gandiva Reporter: Antoine Pitrou
When running Gandiva tests with Valgrind, I get the following errors: {code} [==========] Running 4 tests from 1 test case. [----------] Global test environment set-up. [----------] 4 tests from TestDecimal [ RUN ] TestDecimal.TestSimple ==12052== Conditional jump or move depends on uninitialised value(s) ==12052== at 0x41110D5: ??? ==12052== { <insert_a_suppression_name_here> Memcheck:Cond obj:* } ==12052== Conditional jump or move depends on uninitialised value(s) ==12052== at 0x41110E8: ??? ==12052== { <insert_a_suppression_name_here> Memcheck:Cond obj:* } ==12052== Conditional jump or move depends on uninitialised value(s) ==12052== at 0x411114B: ??? ==12052== { <insert_a_suppression_name_here> Memcheck:Cond obj:* } ==12052== Conditional jump or move depends on uninitialised value(s) ==12052== at 0x411117B: ??? ==12052== { <insert_a_suppression_name_here> Memcheck:Cond obj:* } [ OK ] TestDecimal.TestSimple (16625 ms) [ RUN ] TestDecimal.TestLiteral [ OK ] TestDecimal.TestLiteral (3480 ms) [ RUN ] TestDecimal.TestIfElse [ OK ] TestDecimal.TestIfElse (2408 ms) [ RUN ] TestDecimal.TestCompare [ OK ] TestDecimal.TestCompare (5303 ms) {code} I think this is legitimate. Gandiva runs computations over all values, even when the bitmap indicates a null value. But decimal computations are complex and involve conditional jumps, hence the error ("Conditional jump or move depends on uninitialised value(s)"). [~pravindra] -- This message was sent by Atlassian JIRA (v7.6.3#76005)