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[RS6000] biarch test fail

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* gcc.target/powerpc/bswap64-4.c: Comment.
This commit is contained in:
Alan Modra 2020-10-24 20:01:17 +10:30
parent d7c71335c2
commit b1fc5c940e
1 changed files with 6 additions and 0 deletions
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6
gcc/testsuite/gcc.target/powerpc/bswap64-4.c
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@ -7,6 +7,12 @@
/* { dg-final { scan-assembler-times "ldbrx" 1 { target has_arch_pwr7 } } } */
/* { dg-final { scan-assembler-times "stdbrx" 1 { target has_arch_pwr7 } } } */
/* 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. */
long long swap_load (long long *a) { return __builtin_bswap64 (*a); }
long long swap_reg (long long a) { return __builtin_bswap64 (a); }
void swap_store (long long *a, long long b) { *a = __builtin_bswap64 (b); }