[Bug hsa/70234] New: HSA back-end produces invalid code for libgomp.c/examples-4/declare_target-5.c test case

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70234

            Bug ID: 70234
           Summary: HSA back-end produces invalid code for
                    libgomp.c/examples-4/declare_target-5.c test case
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: hsa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: jamborm at gcc dot gnu.org
  Target Milestone: ---

Running:

$ ./xgcc -B. -fopenmp -c
/home/marxin/Programming/gcc2/libgomp/testsuite/libgomp.c/examples-4/declare_target-5.c
-O1 -fdump-tree-hsagen -fdump-tree-optimized
/home/marxin/Programming/gcc2/libgomp/testsuite/libgomp.c/examples-4/declare_target-5.c:
In function ‘accum._omp_fn.1.hsa’:
cc1: warning: could not emit HSAIL for the function [-Whsa]
cc1: note: support for HSA does not implement loading of expression {<unknown>,
 <unknown>,  <unknown>,  <unknown>}

produces invalid code:
$ objcopy -O binary -j .brig declare_target-5.o z.brig && $HSAASM z.brig
-disassemble
Error in hsa_operand section, at offset 1536:
Identifier is not defined/declared or is not visible in the current scope

Martin