PowerPC: Restrict long double test to use IBM long double.
I posted this patch previously as a set of 3 testsuite patches. I have
separated them into separate patches. This patch marks the convert-bfp-11.c
patch as needing IBM extended double. If you look at the code, it is
specifically designed around testing the limits of the IBM 128-bit extended
double representation. I added a new target-supports that says the test
requires IBM extended long double, and changed the test to require this
effective test. Can I check this into the master branch?
gcc/testsuite/
2020-11-15 Michael Meissner <meiss...@linux.ibm.com>
* c-c++-common/dfp/convert-bfp-11.c: Require IBM 128-bit long
double.
* lib/target-supports.exp (check_ppc_long_double_ibm): New
function.
(is-effective-target): Add ppc_long_double_ibm.
---
.../c-c++-common/dfp/convert-bfp-11.c | 1 +
gcc/testsuite/lib/target-supports.exp | 19 +++++++++++++++++++
2 files changed, 20 insertions(+)
diff --git a/gcc/testsuite/c-c++-common/dfp/convert-bfp-11.c
b/gcc/testsuite/c-c++-common/dfp/convert-bfp-11.c
index 95c433d2c24..87f6716afb3 100644
--- a/gcc/testsuite/c-c++-common/dfp/convert-bfp-11.c
+++ b/gcc/testsuite/c-c++-common/dfp/convert-bfp-11.c
@@ -1,4 +1,5 @@
/* { dg-skip-if "" { ! "powerpc*-*-linux*" } } */
+/* { dg-require-effective-target ppc_long_double_ibm } */
/* Test decimal float conversions to and from IBM 128-bit long double.
Checks are skipped at runtime if long double is not 128 bits.
diff --git a/gcc/testsuite/lib/target-supports.exp
b/gcc/testsuite/lib/target-supports.exp
index ceee78c26a9..dc1100ba96c 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -2336,6 +2336,24 @@ proc check_effective_target_ppc_ieee128_ok { } {
}]
}
+# Return 1 if the target is a powerpc with the long double format 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()
+ {
+ #ifndef __LONG_DOUBLE_IBM128__
+ return 1;
+ #else
+ return 0;
+ #endif
+ }
+ }
+ }]
+}
+
# Return 1 if the target supports executing VSX instructions, 0
# otherwise. Cache the result.
@@ -7939,6 +7957,7 @@ 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_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
