[Bug middle-end/31150] [4.1/4.2/4.3 Regression] Not promoting an whole array to be static const

[eres at il dot ibm dot com]

------- Comment #5 from eres at il dot ibm dot com  2007-06-28 11:55 -------
(Form off-line discussion with Richard Guenther)

For- 

char str[2][16] = {"thisis16charslo","thisis16charslo"};

On ppc64 we will get -

static char C.0[2][16] = {"thisis16charslo", "thisis16charslo"};

while on x86_64 - 

str[0] = "thisis16charslo";
str[1] = "thisis16charslo";

and this patch makes this output much worse (although it should be
applied only on sparse data)


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31150