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| author | Kyrylo Tkachov <kyrylo.tkachov@arm.com> | 2021-03-17 18:21:05 +0000 |
|---|---|---|
| committer | Kyrylo Tkachov <kyrylo.tkachov@arm.com> | 2021-03-17 18:21:05 +0000 |
| commit | f7581eb38eeaa8af64f3cdfe2faf764f5883f16f (patch) | |
| tree | d4eea38c38257195c866a5b645ee3f31481efdc8 /gcc/ada/gcc-interface/utils.c | |
| parent | adf14bdbc10d4114865a08cf20020a2616039057 (diff) | |
| download | gcc-f7581eb38eeaa8af64f3cdfe2faf764f5883f16f.zip gcc-f7581eb38eeaa8af64f3cdfe2faf764f5883f16f.tar.gz gcc-f7581eb38eeaa8af64f3cdfe2faf764f5883f16f.tar.bz2 | |
aarch64: Fix status return logic in RNG intrinsics
There is a bug with the RNG intrinsics in their return code. The definition says:
"Stores a 64-bit random number into the object pointed to by the argument and returns zero.
If the implementation could not generate a random number within a reasonable period of time
the object pointed to by the input is set to zero and a non-zero value is returned."
This means we should be testing whether to return non-zero with:
CSET W0, EQ
rather than NE.
This patch fixes that.
gcc/ChangeLog:
* config/aarch64/aarch64-builtins.c (aarch64_expand_rng_builtin): Use EQ
to compare against CC_REG rather than NE.
gcc/testsuite/ChangeLog:
* gcc.target/aarch64/acle/rng_2.c: New test.
Diffstat (limited to 'gcc/ada/gcc-interface/utils.c')
0 files changed, 0 insertions, 0 deletions