https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84856
Bug ID: 84856
Summary: Bootstrap failure on riscv: comparison of integer
expressions of different signedness
Product: gcc
Version: 8.0.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: belyshev at depni dot sinp.msu.ru
Target Milestone: ---
Target: riscv*-*-*
On RISC-V STACK_BOUNDARY and BIGGEST_ALIGNMENT are defined to an unsigned
varible, unlike most other architectures where they are constants, triggering
bootstrap failure with:
../../gcc/gcc/calls.c: In function 'poly_int64 compute_argument_block_size(int,
args_size*, tree, tree, int)':
../../gcc/gcc/calls.c:2201:60: error: comparison of integer expressions of
different signedness: 'int' and 'unsigned int' [-Werror=sign-compare]
if (ACCUMULATE_OUTGOING_ARGS && preferred_stack_boundary > STACK_BOUNDARY)
../../gcc/gcc/final.c: In function 'int
final_addr_vec_align(rtx_jump_table_data*)':
../../gcc/gcc/final.c:521:13: error: comparison of integer expressions of
different signedness: 'int' and 'unsigned int' [-Werror=sign-compare]
if (align > BIGGEST_ALIGNMENT / BITS_PER_UNIT)
The fix would be to change appropriate variables also to unsigned. (Also may
as well to remove ATTRIBUTE_UNUSED annotations on of
compute_argument_block_size(), which are no longer useful since r44814.
