From: Tom Tromey <tom@tromey.com>
Date: Tue, 4 May 2021 21:26:58 +0000 (-0600)
Subject: libcc1: avoid extra string copies
X-Git-Tag: upstream/12.2.0~8224
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=96deddca2e535d09db1d244a96a1efc20e24b673;p=platform%2Fupstream%2Fgcc.git

libcc1: avoid extra string copies

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.
---

diff --git a/libcc1/compiler.hh b/libcc1/compiler.hh
index 638f7c0..d10d409 100644
--- a/libcc1/compiler.hh
+++ b/libcc1/compiler.hh
@@ -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)
     {
     }