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[Bug math/15367] New: Let gcc use __builtin_isinf
- From: "marc.glisse at normalesup dot org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Sat, 13 Apr 2013 07:34:34 +0000
- Subject: [Bug math/15367] New: Let gcc use __builtin_isinf
- Auto-submitted: auto-generated
http://sourceware.org/bugzilla/show_bug.cgi?id=15367
Bug #: 15367
Summary: Let gcc use __builtin_isinf
Product: glibc
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: math
AssignedTo: unassigned@sourceware.org
ReportedBy: marc.glisse@normalesup.org
Classification: Unclassified
Hello,
gcc has had __builtin_isinf for a while now, but not __builtin___isinf.
However, math.h defines a macro that replaces isinf with __isinf and thus
prevents gcc from inlining its implementation. I thus get better code with
(isinf)(d) than isinf(d), because it inhibits the macro expansion.
Could the macro be changed, or do we have to add __builtin___isinf to gcc?
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