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[Bug middle-end/37846] New: Option -mno-fused-madd should be supported on IA-64
- From: "vincent at vinc17 dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 16 Oct 2008 08:03:53 -0000
- Subject: [Bug middle-end/37846] New: Option -mno-fused-madd should be supported on IA-64
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
Option -mno-fused-madd is currently not supported on IA-64. This means that the
expression x*y+z is always fused (IA-64's fma instruction) and this cannot be
disabled, unlike on PowerPC.
BTW, I wonder why this option exists for PowerPC (and other CPU types) but not
for IA-64. Isn't it similar, or is there some difficulty?
--
Summary: Option -mno-fused-madd should be supported on IA-64
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: vincent at vinc17 dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37846