[Bug lto/42074] gcc.dg/torture/builtin-math-7.c failed

[dominiq at lps dot ens dot fr]

------- Comment #10 from dominiq at lps dot ens dot fr  2009-12-08 09:56 -------
I had a look at the problem and found that it is due to the -lm flag used in
the test suite. The test in comment #9 gives for x86_64-apple-darwin10:

[macbook] f90/bug% a.out 
2 0
[macbook] f90/bug% gcc45 pr42074.c -lm
[macbook] f90/bug% a.out
inf 0
Abort

and tgcc.dg/torture/builtin-math-7.c passes when it is compiled manually
without -lm.

Note that gcc version 4.4.2 (GCC) gives the same results, but not gcc version
4.2.1 (Apple Inc. build 5646) (dot 1) Target: i686-apple-darwin10:

[macbook] f90/bug% gcc pr42074.c -lm
[macbook] f90/bug% a.out
2 0

These tests pass on powerpc-apple-darwin9 with gcc4.5 rev.155054.

I don't have access right now to *86*-apple-darwin9 and older versions of gcc,
but I'll check on it tonight.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42074