Mars

LLVM: array(2, x) creates an empty array

Bug #1101679 reported by Matt Giuca
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Mars
Fix Committed
High
Matt Giuca
Mars 1.0

Bug Description

Expected:
?> array(2, 42)
[42, 42]

Actual:
?> array(2, 42)
[]

Only when using the LLVM backend.

Tags: llvm

Related branches

lp://staging/~mgiuca/mars/llvm-backend (Merged)
Revision history for this message
Matt Giuca (mgiuca) wrote :

This seems to be a memory corruption issue related to the garbage collector. Replacing all uses of GC_malloc with malloc resolves the issue.

Revision history for this message
Matt Giuca (mgiuca) wrote :

Also, the issue only occurs in the interpreter, not in the compiled code.

Revision history for this message
Matt Giuca (mgiuca) wrote :

Fixed in branch 'llvm-backend' r1308.

Yep, it was memory corruption, due to a <= that should have been < in a loop in the built-in implementation of array().

Changed in mars:
status: Triaged → Fix Committed
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