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      1 // RUN: %clang_cc1 -emit-llvm -triple=le32-unknown-nacl -o - %s | FileCheck %s
      2 
      3 int f();
      4 
      5 // Test that PNaCl uses the Itanium/x86 ABI in which the static
      6 // variable's guard variable is tested via "load i8 and compare with
      7 // zero" rather than the ARM ABI which uses "load i32 and test the
      8 // bottom bit".
      9 void g() {
     10   static int a = f();
     11 }
     12 // CHECK: [[LOAD:%.*]] = load atomic i8, i8* bitcast (i64* @_ZGVZ1gvE1a to i8*) acquire
     13 // CHECK-NEXT: [[GUARD:%.*]] = icmp eq i8 [[LOAD]], 0
     14 // CHECK-NEXT: br i1 [[GUARD]]
     15