Add test

Author: TIFitis

flang/test/Lower/amdgcn-complex.f90

@@ -0,0 +1,21 @@
+! REQUIRES: amdgpu-registered-target
+! RUN: %flang_fc1 -triple amdgcn-amd-amdhsa -emit-fir -flang-deprecated-no-hlfir %s -o - | FileCheck %s
+
+subroutine cabsf_test(a, b)
+   complex :: a
+   real :: b
+   b = abs(a)
+end subroutine
+
+! CHECK-LABEL: func @_QPcabsf_test(
+! CHECK: complex.abs
+! CHECK-NOT: fir.call @cabsf
+
+subroutine cexpf_test(a, b)
+   complex :: a, b
+   b = exp(a)
+end subroutine
+
+! CHECK-LABEL: func @_QPcexpf_test(
+! CHECK: complex.exp
+! CHECK-NOT: fir.call @cexpf