clang/test/CodeGen/PowerPC/aix-altivec-vaargs.c

   1 // REQUIRES: powerpc-registered-target
   2 // RUN: %clang_cc1 -triple powerpc-unknown-aix -emit-llvm -target-feature +altivec -target-cpu pwr7 -o - %s | FileCheck %s --check-prefixes=CHECK,AIX32
   3 // RUN: %clang_cc1 -triple powerpc64-unknown-aix -emit-llvm -target-feature +altivec -target-cpu pwr7 -o - %s | FileCheck %s --check-prefixes=CHECK,AIX64
   4
   5 vector double vector_varargs(int count, ...) {
   6   __builtin_va_list arg_list;
   7   __builtin_va_start(arg_list, count);
   8
   9   vector double ret;
  10
  11   for (int i = 0; i != count; ++i) {
  12     ret = __builtin_va_arg(arg_list, vector double);
  13   }
  14
  15   __builtin_va_end(arg_list);
  16   return ret;
  17 }
  18
  19 // CHECK:         %arg_list = alloca ptr
  20 // CHECK:         call void @llvm.va_start(ptr %arg_list)
  21
  22 // AIX32:       for.body:
  23 // AIX32-NEXT:    %argp.cur = load ptr, ptr %arg_list, align 4
  24 // AIX32-NEXT:    %2 = getelementptr inbounds i8, ptr %argp.cur, i32 15
  25 // AIX32-NEXT:    %argp.cur.aligned = call ptr @llvm.ptrmask.p0.i32(ptr %2, i32 -16)
  26 // AIX32-NEXT:    %argp.next = getelementptr inbounds i8, ptr %argp.cur.aligned, i32 16
  27 // AIX32-NEXT:    store ptr %argp.next, ptr %arg_list, align 4
  28 // AIX32-NEXT:    %3 = load <2 x double>, ptr %argp.cur.aligned, align 16
  29 // AIX32-NEXT:    store <2 x double> %3, ptr %ret, align 16
  30 // AIX32-NEXT:    br label %for.inc
  31
  32 // AIX64:       for.body:
  33 // AIX64-NEXT:    %argp.cur = load ptr, ptr %arg_list, align 8
  34 // AIX64-NEXT:    %2 = getelementptr inbounds i8, ptr %argp.cur, i32 15
  35 // AIX64-NEXT:    %argp.cur.aligned = call ptr @llvm.ptrmask.p0.i64(ptr %2, i64 -16)
  36 // AIX64-NEXT:    %argp.next = getelementptr inbounds i8, ptr %argp.cur.aligned, i64 16
  37 // AIX64-NEXT:    store ptr %argp.next, ptr %arg_list, align 8
  38 // AIX64-NEXT:    %3 = load <2 x double>, ptr %argp.cur.aligned, align 16
  39 // AIX64-NEXT:    store <2 x double> %3, ptr %ret, align 16
  40 // AIX64-NEXT:    br label %for.inc
  41
  42
  43 // CHECK:      for.end:
  44 // CHECK:        call void @llvm.va_end(ptr %arg_list)