This is the patch that I committed. I will do the backport in a few days to
GCC 11 and 10.
Disable float128 tests on VxWorks, PR target/104253.
In PR target/104253, it was pointed out the that test case added as part
of fixing the PR does not work on VxWorks because float128 is not
supported on that system. I have modified the three tests for float128 so
that they are manually excluded on VxWorks systems. In looking at the
code, I also added checks in check_effective_target_ppc_ieee128_ok to
disable the systems that will never support VSX instructions which are
required for float128 support (eabi, eabispe, darwin).
2022-04-07 Michael Meissner <meiss...@linux.ibm.com>
gcc/testsuite/
PR target/104253
* lib/target-supports.exp (check_ppc_float128_sw_available): Do
not run float128 tests on VxWorks.
(check_ppc_float128_hw_available): Likewise.
(check_effective_target_ppc_ieee128_ok): Likewise.
---
gcc/testsuite/lib/target-supports.exp | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/gcc/testsuite/lib/target-supports.exp
b/gcc/testsuite/lib/target-supports.exp
index ff8edbd3e17..90b90095682 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -2318,8 +2318,9 @@ proc check_ppc_mma_hw_available { } {
proc check_ppc_float128_sw_available { } {
return [check_cached_effective_target ppc_float128_sw_available {
# Some simulators are known to not support VSX/power8/power9
- # instructions. For now, disable on Darwin.
- if { [istarget powerpc-*-eabi]
+ # instructions. For now, disable on Darwin and VxWorks.
+ if { [istarget *-*-vxworks*]
+ || [istarget powerpc-*-eabi]
|| [istarget powerpc*-*-eabispe]
|| [istarget *-*-darwin*]} {
expr 0
@@ -2345,7 +2346,8 @@ proc check_ppc_float128_hw_available { } {
return [check_cached_effective_target ppc_float128_hw_available {
# Some simulators are known to not support VSX/power8/power9
# instructions. For now, disable on Darwin.
- if { [istarget powerpc-*-eabi]
+ if { [istarget *-*-vxworks*]
+ || [istarget powerpc-*-eabi]
|| [istarget powerpc*-*-eabispe]
|| [istarget *-*-darwin*]} {
expr 0
@@ -2370,8 +2372,9 @@ proc check_ppc_float128_hw_available { } {
# See if the __ieee128 keyword is understood.
proc check_effective_target_ppc_ieee128_ok { } {
return [check_cached_effective_target ppc_ieee128_ok {
- # disable on AIX.
- if { [istarget *-*-aix*] } {
+ # disable on AIX and VxWorks.
+ if { [istarget *-*-aix*]
+ || [istarget *-*-vxworks*]} {
expr 0
} else {
set options "-mfloat128"
--
2.35.1
--
Michael Meissner, IBM
PO Box 98, Ayer, Massachusetts, USA, 01432
email: meiss...@linux.ibm.com
