clang/test/CodeGen/mips-vector-return.c

   1 // RUN: %clang_cc1 -triple mipsel-unknown-linux -O3 -o - -emit-llvm %s | FileCheck %s -check-prefix=O32
   2 // RUN: %clang_cc1 -triple mips64el-unknown-linux -O3 -target-abi n64 -o - -emit-llvm %s | FileCheck %s -check-prefix=N64
   3
   4 // vectors larger than 16-bytes are returned via the hidden pointer argument.
   5 // N64/N32 returns vectors whose size is equal to or smaller than 16-bytes in
   6 // integer registers.
   7 typedef float  v4sf __attribute__ ((__vector_size__ (16)));
   8 typedef double v4df __attribute__ ((__vector_size__ (32)));
   9 typedef int v4i32 __attribute__ ((__vector_size__ (16)));
  10
  11 // O32-LABEL: define{{.*}} void @test_v4sf(ptr dead_on_unwind noalias nocapture writable writeonly sret
  12 // N64: define{{.*}} inreg { i64, i64 } @test_v4sf
  13 v4sf test_v4sf(float a) {
  14   return (v4sf){0.0f, a, 0.0f, 0.0f};
  15 }
  16
  17 // O32-LABEL: define{{.*}} void @test_v4df(ptr dead_on_unwind noalias nocapture writable writeonly sret
  18 // N64-LABEL: define{{.*}} void @test_v4df(ptr dead_on_unwind noalias nocapture writable writeonly sret
  19 v4df test_v4df(double a) {
  20   return (v4df){0.0, a, 0.0, 0.0};
  21 }
  22
  23 // O32 returns integer vectors whose size is equal to or smaller than 16-bytes
  24 // in integer registers.
  25 //
  26 // O32: define{{.*}} inreg { i32, i32, i32, i32 } @test_v4i32
  27 // N64: define{{.*}} inreg { i64, i64 } @test_v4i32
  28 v4i32 test_v4i32(int a) {
  29   return (v4i32){0, a, 0, 0};
  30 }
  31