https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90812
Bug ID: 90812
Summary: Tests misuse "dg-require-effective-target int32plus"
to check for 64-bit integer support
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: testsuite
Assignee: unassigned at gcc dot gnu.org
Reporter: jozefl.gcc at gmail dot com
Target Milestone: ---
Some tests which require 64-bit integer support via __INT64_TYPE__ use the
int32plus effective target keyword, apparently to try to check that this type
is supported.
However, int32plus only checks that "sizeof (int) >= 4", whilst some targets
have "sizeof(int) < 4", but still support __INT64_TYPE__.
The result of this is that some of these tests for 64-bit int behavior are not
run on 8-bit/16-bit int targets.
I identified at least gcc.dg/pr80131-1.c and gcc.dg/torture/pr86554-2.c to have
this problem. If I replace the "int32plus" requirement with "stdint_types",
then these tests pass on msp430-elf, which has "sizeof(int) == 2".
