Hi,
Test case bswap64-4.c suffers the issue as its comments:
/* On some versions of dejagnu this test will fail when
biarch testing with RUNTESTFLAGS="--target_board=unix
'{-m64,-m32}'" due to -m32 being added on the command
line after the dg-options -mpowerpc64.
common/config/rs6000/rs6000-common.c:
rs6000_handle_option disables -mpowerpc64 for -m32. */
As tested, on test machine with dejaGnu 1.6.2, the compilation
option order looks like: -m32 ... -mpowerpc64, option
-mpowerpc64 still takes effect; While on test machine with
dejaGnu 1.5.1, the option order looks like: -mpowerpc64 ... -m32,
option -mpowerpc64 is disabled by -m32, then the case fails.
This fix leverages the new effective target has_arch_ppc64 and
places dg-options before dg-require-effective-target (it makes
dg-options to be used for has_arch_ppc64 checking), on machine
with dejaGnu 1.6.2, the checking succeeds and the case passes;
while on machine with dejaGnu 1.5.1, the checking fails then
the case is marked as unsupported.
Tested on powerpc64-linux-gnu P7 and P8,
and powerpc64le-linux-gnu P9 and P10.
I'll push this soon if no objections.
BR,
Kewen
-----
PR testsuite/106680
gcc/testsuite/ChangeLog:
* gcc.target/powerpc/bswap64-4.c: Adjust with has_arch_ppc64.
---
gcc/testsuite/gcc.target/powerpc/bswap64-4.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/gcc/testsuite/gcc.target/powerpc/bswap64-4.c
b/gcc/testsuite/gcc.target/powerpc/bswap64-4.c
index 5acbb91ee38..85a7bbbd367 100644
--- a/gcc/testsuite/gcc.target/powerpc/bswap64-4.c
+++ b/gcc/testsuite/gcc.target/powerpc/bswap64-4.c
@@ -1,7 +1,8 @@
/* { dg-do compile { target { powerpc*-*-* } } } */
/* { dg-skip-if "" { powerpc*-*-aix* } } */
-/* { dg-options "-O2 -mpowerpc64" } */
/* { dg-require-effective-target ilp32 } */
+/* { dg-options "-O2 -mpowerpc64" } */
+/* { dg-require-effective-target has_arch_ppc64 } */
/* { dg-final { scan-assembler-times "lwbrx" 2 { target { ! has_arch_pwr7 } }
} } */
/* { dg-final { scan-assembler-times "stwbrx" 2 { target { ! has_arch_pwr7 } }
} } */
/* { dg-final { scan-assembler-times "ldbrx" 1 { target has_arch_pwr7 } } } */
--
2.27.0
