clang/test/CodeGen/builtins-ms.c

   1 // RUN: %clang_cc1 %s -emit-llvm -o - -fms-extensions -triple i686-pc-win32 | FileCheck %s
   2
   3 // CHECK-LABEL: define dso_local void @test_alloca(
   4 void capture(void *);
   5 void test_alloca(int n) {
   6   capture(_alloca(n));
   7   // CHECK: %[[arg:.*]] = alloca i8, i32 %{{.*}}, align 16
   8   // CHECK: call void @capture(ptr noundef %[[arg]])
   9 }
  10
  11 // CHECK-LABEL: define dso_local void @test_alloca_with_align(
  12 void test_alloca_with_align(int n) {
  13   capture(__builtin_alloca_with_align(n, 64));
  14   // CHECK: %[[arg:.*]] = alloca i8, i32 %{{.*}}, align 8
  15   // CHECK: call void @capture(ptr noundef %[[arg]])
  16 }