https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89907
Bug ID: 89907
Summary: Incorrect check_avx2_available
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: testsuite
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
Target Milestone: ---
target-supports.exp has
# Return true if we are compiling for AVX target.
proc check_avx_available { } {
if { [check_no_compiler_messages avx_available assembly {
#ifndef __AVX__
#error unsupported
#endif
} ""] } {
return 1;
}
return 0;
}
# Return true if we are compiling for AVX2 target.
proc check_avx2_available { } {
if { [check_no_compiler_messages avx_available assembly {
^^^^^ It should be "avx2_available".
#ifndef __AVX2__
#error unsupported
#endif
} ""] } {
return 1;
}
return 0;
}
When check_avx_available is called before check_avx2_available,
check_avx2_available will get the wrong result on AVX machines.
