clang/test/Sema/altivec-init.c

   1 // RUN: %clang_cc1 %s -triple=powerpc-ibm-aix -target-feature +altivec -verify -pedantic -fsyntax-only
   2
   3 typedef int v4 __attribute((vector_size(16)));
   4 typedef short v8 __attribute((vector_size(16)));
   5
   6 v8 foo(void) {
   7   v8 a;
   8   v4 b;
   9   a = (v8){4, 2};
  10   b = (v4)(5, 6, 7, 8, 9); // expected-warning {{excess elements in vector initializer}}
  11   b = (v4)(5, 6, 8, 8.0f);
  12
  13   vector int vi;
  14   vi = (vector int)(1);
  15   vi = (vector int)(1, 2);          // expected-error {{number of elements must be either one or match the size of the vector}}
  16   vi = (vector int)(1, 2, 3, 4);
  17   vi = (vector int)(1, 2, 3, 4, 5); // expected-warning {{excess elements in vector initializer}}
  18   vi = (vector int){1};
  19   vi = (vector int){1, 2};
  20   vi = (vector int){1, 2, 3, 4, 5}; // expected-warning {{excess elements in vector initializer}}
  21   vector float vf;
  22   vf = (vector float)(1.0);
  23
  24   return (v8){0, 1, 2, 3, 1, 2, 3, 4};
  25
  26   // FIXME: test that (type)(fn)(args) still works with -maltivec
  27   // FIXME: test that c++ overloaded commas still work -maltivec
  28 }
  29
  30 void __attribute__((__overloadable__)) f(v4 a)
  31 {
  32 }
  33
  34 void __attribute__((__overloadable__)) f(int a)
  35 {
  36 }
  37
  38 void test(void)
  39 {
  40   v4 vGCC;
  41   vector int vAltiVec;
  42
  43   f(vAltiVec);
  44   vGCC = vAltiVec;
  45   int res = vGCC > vAltiVec;
  46   vAltiVec = 0 ? vGCC : vGCC;
  47 }
  48
  49 typedef struct VecMem {
  50   vector signed vec;
  51 } VecMem;
  52
  53 // The following should not assert.  See qiongsiwu1's comment here:
  54 // https://reviews.llvm.org/D115670
  55 void test2(void) {
  56   vector signed local_vec = {1, 2, 3, 4};
  57   VecMem VM;
  58   VM.vec = ++local_vec;
  59 }
  60