clang/test/CodeGen/avr/return-value.c

   1 // RUN: %clang_cc1 -triple avr -target-cpu atmega328 -emit-llvm %s -o - \
   2 // RUN:     | FileCheck %s --check-prefix=AVR
   3 // RUN: %clang_cc1 -triple avr -target-cpu attiny40 -emit-llvm %s -o - \
   4 // RUN:     | FileCheck %s --check-prefix=TINY
   5
   6 // Structure that is more than 8 bytes.
   7 struct s10 {
   8   int a, b, c, d, e;
   9 };
  10
  11 // Structure that is less than 8 bytes but more than 4 bytes.
  12 struct s06 {
  13   int a, b, c;
  14 };
  15
  16 // Structure that is less than 4 bytes.
  17 struct s04 {
  18   int a, b;
  19 };
  20
  21 struct s10 foo10(int a, int b, int c) {
  22   struct s10 a0;
  23   return a0;
  24 }
  25
  26 struct s06 foo06(int a, int b, int c) {
  27   struct s06 a0;
  28   return a0;
  29 }
  30
  31 struct s04 foo04(int a, int b) {
  32   struct s04 a0;
  33   return a0;
  34 }
  35
  36 long long fooi64(void) {
  37   return 0xaa5533;
  38 }
  39
  40 // AVR: %struct.s10 = type { i16, i16, i16, i16, i16 }
  41 // AVR: %struct.s06 = type { i16, i16, i16 }
  42 // AVR: %struct.s04 = type { i16, i16 }
  43 // AVR: define{{.*}} void @foo10(ptr {{.*}}, i16 noundef %a, i16 noundef %b, i16 noundef %c)
  44 // AVR: define{{.*}} %struct.s06 @foo06(i16 noundef %a, i16 noundef %b, i16 noundef %c)
  45 // AVR: define{{.*}} %struct.s04 @foo04(i16 noundef %a, i16 noundef %b)
  46 // AVR: define{{.*}} i64 @fooi64()
  47
  48 // TINY: %struct.s10 = type { i16, i16, i16, i16, i16 }
  49 // TINY: %struct.s06 = type { i16, i16, i16 }
  50 // TINY: %struct.s04 = type { i16, i16 }
  51 // TINY: define{{.*}} void @foo10(ptr {{.*}}, i16 noundef %a, i16 noundef %b, i16 noundef %c)
  52 // TINY: define{{.*}} void @foo06(ptr {{.*}}, i16 noundef %a, i16 noundef %b, i16 noundef %c)
  53 // TINY: define{{.*}} %struct.s04 @foo04(i16 noundef %a, i16 noundef %b)
  54 // TINY: define{{.*}} void @fooi64(ptr {{.*}})