PowerPC: Add long double target-supports.
This patch adds 3 target supports to test what type of PowerPC long double is
used by the test:
1) Long double uses the IBM 128-bit extended double format;
2) Long double uses the IEEE 128-bit format; (and)
3) Long double uses the 64-bit format.
I have tested this patch and the following two patches in this series with
compilers with the 3 different long double types. I verified that the two
tests being modified both are labeled as UNSUPPORTED if long double is not IBM
128-bit, and if long double is IBM 128-bit, the tests pass.
Can I check this into the master branch? I think this patch should also be
back ported to the earlier branches.
gcc/testsuite/
2020-11-21 Michael Meissner <meiss...@linux.ibm.com>
* lib/target-supports.exp (check_ppc_long_double_ibm): New
function.
(check_ppc_long_double_ieee): New function.
(check_ppc_long_double_64bit): New function.
(is-effective-target): Add ppc_long_double_ibm,
ppc_long_double_ieee, and ppc_long_double_64bit.
---
gcc/testsuite/lib/target-supports.exp | 56 +++++++++++++++++++++++++++
1 file changed, 56 insertions(+)
diff --git a/gcc/testsuite/lib/target-supports.exp
b/gcc/testsuite/lib/target-supports.exp
index 22acda2a74f..adcb789d136 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -2336,6 +2336,59 @@ proc check_effective_target_ppc_ieee128_ok { } {
}]
}
+# See if the target is a powerpc with the long double format that uses the IBM
+# extended double format.
+
+proc check_ppc_long_double_ibm { } {
+ return [check_cached_effective_target ppc_long_double_ibm {
+ check_runtime_nocache ppc_long_double_ibm {
+ int main()
+ {
+ #if !defined(_ARCH_PPC) || !defined(__LONG_DOUBLE_IBM128__)
+ return 1;
+ #else
+ return 0;
+ #endif
+ }
+ }
+ }]
+}
+
+# See if the target is a powerpc with the long double format that uses the IEEE
+# 128-bit format.
+
+proc check_ppc_long_double_ieee { } {
+ return [check_cached_effective_target ppc_long_double_ieee {
+ check_runtime_nocache ppc_long_double_ieee {
+ int main()
+ {
+ #if !defined(_ARCH_PPC) || !defined(__LONG_DOUBLE_IEEE128__)
+ return 1;
+ #else
+ return 0;
+ #endif
+ }
+ }
+ }]
+}
+
+# See if the target is a powerpc with the long double format that is 64-bit.
+
+proc check_ppc_long_double_64bit { } {
+ return [check_cached_effective_target ppc_long_double_64bit {
+ check_runtime_nocache ppc_long_double_64bit {
+ int main()
+ {
+ #ifndef _ARCH_PPC
+ return 1;
+ #else
+ return sizeof (long double) != 64;
+ #endif
+ }
+ }
+ }]
+}
+
# Return 1 if the target supports executing VSX instructions, 0
# otherwise. Cache the result.
@@ -7939,6 +7992,9 @@ proc is-effective-target { arg } {
"power10_hw" { set selected [check_power10_hw_available] }
"ppc_float128_sw" { set selected [check_ppc_float128_sw_available] }
"ppc_float128_hw" { set selected [check_ppc_float128_hw_available] }
+ "ppc_long_double_ibm" { set selected [check_ppc_long_double_ibm] }
+ "ppc_long_double_ieee" { set selected [check_ppc_long_double_ieee] }
+ "ppc_long_double_64bit" { set selected [check_ppc_long_double_64bit] }
"ppc_recip_hw" { set selected [check_ppc_recip_hw_available] }
"ppc_cpu_supports_hw" { set selected
[check_ppc_cpu_supports_hw_available] }
"ppc_mma_hw" { set selected [check_ppc_mma_hw_available] }
--
2.22.0
--
Michael Meissner, IBM
IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA
email: meiss...@linux.ibm.com, phone: +1 (978) 899-4797
