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[Bug math/18824] New: fma spurious underflows
- From: "jsm28 at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Thu, 13 Aug 2015 23:07:16 +0000
- Subject: [Bug math/18824] New: fma spurious underflows
- Auto-submitted: auto-generated
https://sourceware.org/bugzilla/show_bug.cgi?id=18824
Bug ID: 18824
Summary: fma spurious underflows
Product: glibc
Version: 2.22
Status: NEW
Severity: normal
Priority: P2
Component: math
Assignee: unassigned at sourceware dot org
Reporter: jsm28 at gcc dot gnu.org
Target Milestone: ---
fma functions can produce spurious underflow exceptions in some cases where the
product of the first two arguments is small and the third argument is large.
E.g., for double on x86_64:
Failure: fma (-0x2.67e916f64646cp-948, 0xe.dabf64cc7e82p-4,
0xc.2c3bd123711bp+972): Exception "Underflow" set
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