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[PATCH] lib/string.c cleanup: remove pointless register keyword

Removes a few pointless register keywords. register is merely a compiler hint that access to the variable should be optimized, but gcc (3.3.6 in my case) generates the exact same code with and without the keyword, and even if gcc did something different with register present I think it is doubtful we would want to optimize access to these variables - especially since this is generic library code and there are supposed to be optimized versions in asm/ for anything that really matters speed wise. (akpm: iirc, keyword register is a gcc no-op unless using -O0)

Jesper Juhl committed 21 years ago

Commit cc75fb71 parent 51a0f0f1 file · +2 −2Browse files

Showing the changes to lib/string.c (1 of 1 file). Show all

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lib/string.c+2−2
@@ -219,7 +219,7 @@ EXPORT_SYMBOL(strlcat); · 218 unmodified lines
219219 #undef strcmp
220220 int strcmp(const char *cs, const char *ct)
221221 {
222− register signed char __res;
222+ signed char __res;
223223
224224 while (1) {
225225 if ((__res = *cs - *ct++) != 0 || !*cs++)
@@ -239,7 +239,7 @@ EXPORT_SYMBOL(strcmp); · 13 unmodified lines
239239 */
240240 int strncmp(const char *cs, const char *ct, size_t count)
241241 {
242− register signed char __res = 0;
242+ signed char __res = 0;
243243
244244 while (count) {
245245 if ((__res = *cs - *ct++) != 0 || !*cs++)

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