clang/test/CodeGen/arm-fp16-arguments.c

   1 // RUN: %clang_cc1 -triple armv7a--none-eabi -target-abi aapcs -mfloat-abi soft -emit-llvm -o - -O2 %s | FileCheck %s --check-prefix=CHECK --check-prefix=SOFT
   2 // RUN: %clang_cc1 -triple armv7a--none-eabi -target-abi aapcs -mfloat-abi hard -emit-llvm -o - -O2 %s | FileCheck %s --check-prefix=CHECK --check-prefix=HARD
   3 // RUN: %clang_cc1 -triple armv7a--none-eabi -target-abi aapcs -mfloat-abi soft -fnative-half-arguments-and-returns -emit-llvm -o - -O2 %s | FileCheck %s --check-prefix=CHECK --check-prefix=NATIVE
   4
   5 __fp16 g;
   6
   7 void t1(__fp16 a) { g = a; }
   8 // SOFT: define{{.*}} void @t1(half noundef [[PARAM:%.*]])
   9 // HARD: define{{.*}} arm_aapcs_vfpcc void @t1(half noundef [[PARAM:%.*]])
  10 // NATIVE: define{{.*}} void @t1(half noundef [[PARAM:%.*]])
  11 // CHECK: store half [[PARAM]], ptr @g
  12
  13 __fp16 t2(void) { return g; }
  14 // SOFT: define{{.*}} half @t2()
  15 // HARD: define{{.*}} arm_aapcs_vfpcc half @t2()
  16 // NATIVE: define{{.*}} half @t2()
  17 // CHECK: [[LOAD:%.*]] = load half, ptr @g
  18 // CHECK: ret half [[LOAD]]
  19
  20 _Float16 h;
  21
  22 void t3(_Float16 a) { h = a; }
  23 // SOFT: define{{.*}} void @t3(half noundef [[PARAM:%.*]])
  24 // HARD: define{{.*}} arm_aapcs_vfpcc void @t3(half noundef [[PARAM:%.*]])
  25 // NATIVE: define{{.*}} void @t3(half noundef [[PARAM:%.*]])
  26 // CHECK: store half [[PARAM]], ptr @h
  27
  28 _Float16 t4(void) { return h; }
  29 // SOFT: define{{.*}} half @t4()
  30 // HARD: define{{.*}} arm_aapcs_vfpcc half @t4()
  31 // NATIVE: define{{.*}} half @t4()
  32 // CHECK: [[LOAD:%.*]] = load half, ptr @h
  33 // CHECK: ret half [[LOAD]]