The following code fails on powerpc64-linux compiled with -mpowerpc64 and -O1
or -O2; it passes with -O0, or without -mpowerpc64:
---------------------------------------------
extern void abort (void);
int i = 274;
float f = 1.0f;
int
main ()
{
double d = i / f;
if (d != 274.0)
abort ();
return 0;
}
--------------------------------------------
This fails with current trunk, with 4.1 and 4.0 branches, and with the last 3.4
branch build I did. This bug affects program vpr in SPEC CPU2000.
--
Summary: wrong code for mixed-mode division with -mpowerpc64 -O1
Product: gcc
Version: 4.0.4
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: janis at gcc dot gnu dot org
GCC target triplet: powerpc64-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27619