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// Test @fastmath
// RUN: %ldc -O0 -release -c -output-ll -of=%t.ll %s && FileCheck %s < %t.ll
import ldc.attributes;
// CHECK-LABEL: define{{.*}} @notfast
// CHECK-SAME: #[[ATTR_NOTFAST:[0-9]+]]
extern (C) double notfast(double a, double b)
{
@fastmath
double nested_fast(double a, double b)
{
return a * b;
}
// CHECK-NOT: fmul fast
return a * b;
}
// CHECK-LABEL: define{{.*}} @{{.*}}nested_fast
// CHECK: fmul fast
// CHECK-LABEL: define{{.*}} @fast
// CHECK-SAME: #[[ATTR_FAST:[0-9]+]]
@fastmath
extern (C) double fast(double a, double b)
{
double c;
double nested_slow(double a, double b)
{
return a * b;
}
// Also test new scopes when generating the IR.
try {
// CHECK: fmul fast
c += a * b;
}
catch (Throwable)
{
// CHECK: fmul fast
return a * b;
}
// CHECK: fmul fast
return c + a * b;
}
// CHECK-LABEL: define{{.*}} @{{.*}}nested_slow
// CHECK-NOT: fmul fast
// CHECK-DAG: attributes #[[ATTR_FAST]] ={{.*}} "unsafe-fp-math"="true"
// CHECK-NOT: attributes #[[ATTR_NOTFAST]] ={{.*}} "unsafe-fp-math"="true"
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