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From: "vincenzo.innocente at cern dot ch" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/55726] New: assignment of a scalar to a vector Date: Tue, 18 Dec 2012 07:17:00 -0000 [thread overview] Message-ID: <bug-55726-4@http.gcc.gnu.org/bugzilla/> (raw) http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55726 Bug #: 55726 Summary: assignment of a scalar to a vector Classification: Unclassified Product: gcc Version: 4.8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned@gcc.gnu.org ReportedBy: vincenzo.innocente@cern.ch CC: marc.glisse@ens.fr given that the following code is valid and correct typedef float __attribute__( ( vector_size( 16 ) ) ) float32x4_t; typedef int __attribute__( ( vector_size( 16 ) ) ) int32x4_t; #include<cassert> int main() { float a = 3.14f; float32x4_t va = float32x4_t{} + a; // float32x4_t va = a; int32x4_t t = va==a; for (int i=0; i!=4;++i) { assert(va[i]==a); assert(t[i]!=0); } return 0; } I think that the assignment float32x4_t va = a; is syntactically and semantically unambiguous and therefore should be supported. At the moment produces ++ -std=c++11 -Ofast -march=corei7 assign.cpp assign.cpp: In function ‘int main()’: assign.cpp:9:21: error: cannot convert ‘float’ to ‘float32x4_t {aka __vector(4) float}’ in initialization float32x4_t va = a;
next reply other threads:[~2012-12-18 7:17 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-12-18 7:17 vincenzo.innocente at cern dot ch [this message] 2012-12-18 11:36 ` [Bug c++/55726] " rguenth at gcc dot gnu.org 2012-12-18 11:39 ` vincenzo.innocente at cern dot ch 2012-12-18 20:54 ` glisse at gcc dot gnu.org 2012-12-19 13:25 ` vincenzo.innocente at cern dot ch 2012-12-22 8:57 ` glisse at gcc dot gnu.org
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