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| author | Martin Liska <mliska@suse.cz> | 2021-12-13 15:34:30 +0100 |
|---|---|---|
| committer | Martin Liska <mliska@suse.cz> | 2021-12-15 10:30:45 +0100 |
| commit | 127c7178d5ec502d95862fd823537cbca1a0cb99 (patch) | |
| tree | 48360fca4e5e5a5425a756acfec547374c86ff3a /gcc/config/i386 | |
| parent | c0e34451ae582c901a2df08498b36f68ae401f0a (diff) | |
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i386: Fix emissing of __builtin_cpu_supports.
PR target/103661
gcc/ChangeLog:
* config/i386/i386-builtins.c (fold_builtin_cpu): Compare to 0
as API expects that non-zero values are returned (do that
it mask == 31).
For "avx512vbmi2" argument, we return now 1 << 31, which is a
negative integer value.
Diffstat (limited to 'gcc/config/i386')
| -rw-r--r-- | gcc/config/i386/i386-builtins.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/config/i386/i386-builtins.c b/gcc/config/i386/i386-builtins.c index 0fb14b5..4b30cf7 100644 --- a/gcc/config/i386/i386-builtins.c +++ b/gcc/config/i386/i386-builtins.c @@ -2353,7 +2353,11 @@ fold_builtin_cpu (tree fndecl, tree *args) /* Return __cpu_model.__cpu_features[0] & field_val */ final = build2 (BIT_AND_EXPR, unsigned_type_node, array_elt, build_int_cstu (unsigned_type_node, field_val)); - return build1 (CONVERT_EXPR, integer_type_node, final); + if (isa_names_table[i].feature == (INT_TYPE_SIZE - 1)) + return build2 (NE_EXPR, integer_type_node, final, + build_int_cst (unsigned_type_node, 0)); + else + return build1 (CONVERT_EXPR, integer_type_node, final); } gcc_unreachable (); } |