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libcc1: avoid extra string copies

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PR c/94669 points out that a couple of spots in libcc1 take a
std::string where a reference would do.  This changes these spots to
take a const char *, to reduce the number of copies.

libcc1

	PR c/94669
	* compiler.hh (compiler_driver_filename): Take const char *.
	(compiler_triplet_regexp): Likewise.
This commit is contained in:
Tom Tromey 2021-05-04 15:26:58 -06:00
parent 8fdffa48c5
commit 96deddca2e
1 changed files with 2 additions and 2 deletions
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4
libcc1/compiler.hh
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@ -58,7 +58,7 @@ namespace cc1_plugin
char *find (const char *base, std::string &compiler) const override;
compiler_triplet_regexp (bool v, std::string triplet_regexp)
compiler_triplet_regexp (bool v, const char *triplet_regexp)
: compiler (v), triplet_regexp_ (triplet_regexp)
{
}
@ -72,7 +72,7 @@ namespace cc1_plugin
public:
char *find (const char *base, std::string &compiler) const override;
compiler_driver_filename (bool v, std::string driver_filename)
compiler_driver_filename (bool v, const char *driver_filename)
: compiler (v), driver_filename_ (driver_filename)
{
}