Segfault in arm binary with llvm 3.5

Using ghc HEAD (6713f0d9) I compile a very simple program which segfaults immediately. Stepping through it using GDB I find its crashing on the instruction

0x3f5a98 <stg_init_finish$def+12>               ldr    r5, [r5]

and that just before this instruction the value of r5 is zero. That means its trying to load into r5 the value at the address in r5. Obviously that's going to segfault.

Trac metadata

Trac field	Value
Version	7.9
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture

Edited Mar 10, 2019 by erikd

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