https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82463
Bug ID: 82463
Summary: vec_madd does not map to __builtin_s390_vfmasb for z14
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: markos at freevec dot org
Target Milestone: ---
Host: s390x-ibm-linux-gnu
Target: s390x-ibm-linux-gnu
Build: s390x-ibm-linux-gnu
Trying to compile the simple test case breaks:
#include <vecintrin.h>
typedef __vector float Packet4f;
int main() {
Packet4f v1 = { 1.0, -1.0, -2.0, 2.0 };
Packet4f v2 = { 2.0, 0.5, 0.1, 0.2 };
Packet4f v0 = { 0.0, 0.0, 0.0, 0.0 };
Packet4f prod = vec_madd(v1, v2, v0);
}
g++ -march=z14 -mzvector zvectortest2.cpp -o zvectortest2
zvectortest2.cpp: In function 'int main()':
zvectortest2.cpp:10:37: error: cannot convert 'Packet4f {aka __vector(4)
float}' to '__vector(2) double' for argument '1' to '__vector(2) double
__builtin_s390_vfmadb(__vector(2) double, __vector(2) double, __vector(2)
double)'
Packet4f prod = vec_madd(v1, v2, v0);
Changing to __builtin_s390_vfmasb explicitly seems to work.
