--- 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 -
--- Comment #9 from ghazi at gcc dot gnu dot org 2009-12-08 08:08 ---
Jack, what does this program do on darwin9 and darwin10?
(The correct output is "2 0".)
int main(void)
{
volatile _Complex double val = (__DBL_MAX__ * 0.5 + __DBL_MAX__ * 0.5i);
val /= (__DBL_MAX__ * 0.25 + __DBL_
--- Comment #8 from ghazi at gcc dot gnu dot org 2009-12-08 07:18 ---
Here's a reduced testcase for the -flto/-fwhopr failures. If you compile it
with "-O2 -flto" or "-O2 -fwhopr" you get the wrong answers:
nan nan
nan nan
If you use just -O2, you get the correct output, i.e. it contai
--- Comment #7 from ghazi at gcc dot gnu dot org 2009-12-08 06:10 ---
I took a quick look. First, there seems to be two separate bugs reported here.
One bug, reported by HJ, appears to be lto/whopr related, and so happens on
systems lto is activated. The other bug is specific to Darwi
--- Comment #6 from howarth at nitro dot med dot uc dot edu 2009-12-08
00:36 ---
Created an attachment (id=19255)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19255&action=view)
assembly of reduced builtin-math-7 test case on x86_64-apple-darwin10 compiled
at -O0.
--
http://
--- Comment #5 from howarth at nitro dot med dot uc dot edu 2009-12-08
00:35 ---
Created an attachment (id=19254)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19254&action=view)
preprocessed source of reduced builtin-math-7 test case on
x86_64-apple-darwin10
--
http://gcc.gn
--- Comment #4 from howarth at nitro dot med dot uc dot edu 2009-12-08
00:34 ---
On x86_64-apple-darwin10, the section of the test case that is failing is...
/* Test that we don't overflow. */
TESTIT (double,
(__DBL_MAX__ * 0.5 + __DBL_MAX__ * 0.5i),
/,
--- Comment #3 from howarth at nitro dot med dot uc dot edu 2009-12-07
16:54 ---
Oddly these errors don't show up on x86_64-apple-darwin9 built with mpc 0.8.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42074
--- Comment #2 from howarth at nitro dot med dot uc dot edu 2009-11-17
03:56 ---
On x86_64-apple-darwin10 with MPC 0.8, we are getting...
FAIL: gcc.dg/torture/builtin-math-7.c -O0 execution test
FAIL: gcc.dg/torture/builtin-math-7.c -O1 execution test
FAIL: gcc.dg/torture/builtin-m
--- Comment #1 from paolo dot carlini at oracle dot com 2009-11-17 01:47
---
I'm also seeing this.
--
paolo dot carlini at oracle dot com changed:
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