[Bug c/30360] Complex divide bug

[joseph at codesourcery dot com]

------- Comment #1 from joseph at codesourcery dot com  2007-01-03 21:31 -------
Subject: Re:   New: Complex divide bug

On Wed, 3 Jan 2007, jakub at gcc dot gnu dot org wrote:

> fails when compiled with -O0 -std=c99 but succeeds when compiled with -O2
> -std=c99.  ISO C99 says it should be (inf, inf) always in G.5.1 (4):
> "if the first operand is a nonzero finite number or an infinity and the second
> operand is a zero, then the result of the / operator is an infinity."

"is an infinity" allows (inf, NaN) and (NaN, inf), it doesn't require 
(inf, inf) (G.3#1: "A complex or imaginary value with at least one 
infinite part is regarded as an infinity (even if its other part is a 
NaN).").  Thus at least the testcase needs to change.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30360