diff options
| -rw-r--r-- | gcc/config/i386/i386-options.cc | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/mvc17.c | 11 |
2 files changed, 16 insertions, 1 deletions
diff --git a/gcc/config/i386/i386-options.cc b/gcc/config/i386/i386-options.cc index 2cb0bdd..7f593ce 100644 --- a/gcc/config/i386/i386-options.cc +++ b/gcc/config/i386/i386-options.cc @@ -1400,7 +1400,11 @@ ix86_valid_target_attribute_tree (tree fndecl, tree args, if (option_strings[IX86_FUNCTION_SPECIFIC_TUNE]) opts->x_ix86_tune_string = ggc_strdup (option_strings[IX86_FUNCTION_SPECIFIC_TUNE]); - else if (orig_tune_defaulted) + /* If we have explicit arch string and no tune string specified, set + tune_string to NULL and later it will be overriden by arch_string + so target clones can get proper optimization. */ + else if (option_strings[IX86_FUNCTION_SPECIFIC_ARCH] + || orig_tune_defaulted) opts->x_ix86_tune_string = NULL; /* If fpmath= is not set, and we now have sse2 on 32-bit, use it. */ diff --git a/gcc/testsuite/gcc.target/i386/mvc17.c b/gcc/testsuite/gcc.target/i386/mvc17.c new file mode 100644 index 0000000..2c7cc2f --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/mvc17.c @@ -0,0 +1,11 @@ +/* { dg-do compile } */ +/* { dg-require-ifunc "" } */ +/* { dg-options "-O2" } */ +/* { dg-final { scan-assembler-times "rep mov" 1 } } */ + +__attribute__((target_clones("default","arch=icelake-server"))) +void +foo (char *a, char *b, int size) +{ + __builtin_memcpy (a, b, size & 0x7F); +} |