clang/test/AST/arithmetic-fence-builtin.c

   1 // Tests without serialization:
   2 // RUN: %clang_cc1 -ast-dump -triple i386-pc-linux-gnu %s \
   3 // RUN: | FileCheck %s --strict-whitespace --check-prefixes=CHECK,CHECK1
   4 //
   5 // RUN: %clang_cc1 -ast-dump -triple i386-pc-linux-gnu -DFAST -mreassociate %s \
   6 // RUN: | FileCheck %s --strict-whitespace --check-prefixes=CHECK,CHECK1
   7 //
   8 // RUN: %clang_cc1 -ast-dump -triple i386-pc-linux-gnu -DFAST -mreassociate %s \
   9 // RUN: -fprotect-parens \
  10 // RUN: | FileCheck %s --strict-whitespace --check-prefixes=CHECK,CHECK2
  11 //
  12 // Tests with serialization:
  13 // RUN: %clang_cc1 -ast-dump -triple i386-pc-linux-gnu -emit-pch -o %t %s
  14 // RUN: %clang_cc1 -triple i386-pc-linux-gnu -include-pch %t -ast-dump-all /dev/null \
  15 // RUN: | FileCheck %s --strict-whitespace
  16 //
  17 // RUN: %clang_cc1 -ast-dump -triple i386-pc-linux-gnu -DFAST -mreassociate %s \
  18 // RUN: -emit-pch -o %t
  19 // RUN: %clang_cc1 -triple i386-pc-linux-gnu -include-pch %t -ast-dump-all /dev/null \
  20 // RUN: | FileCheck %s --strict-whitespace --check-prefixes=CHECK,CHECK1
  21 //
  22 // RUN: %clang_cc1 -ast-dump -triple i386-pc-linux-gnu -DFAST -mreassociate %s \
  23 // RUN: -fprotect-parens \
  24 // RUN: -emit-pch -o %t
  25 // RUN: %clang_cc1 -triple i386-pc-linux-gnu -include-pch %t -ast-dump-all /dev/null -fprotect-parens\
  26 // RUN: | FileCheck %s --strict-whitespace --check-prefixes=CHECK,CHECK2
  27
  28 //
  29 int v;
  30 int addit(float a, float b) {
  31
  32   v = __arithmetic_fence(a + b);
  33
  34   v = (a + b);
  35
  36   return 0;
  37 }
  38 //CHECK:| `-CompoundStmt {{.*}}
  39 //CHECK-NEXT:|   |-BinaryOperator {{.*}} 'int' '='
  40 //CHECK-NEXT:|   | |-DeclRefExpr {{.*}} 'int' lvalue Var {{.*}} 'v' 'int'
  41 //CHECK-NEXT:|   | `-ImplicitCastExpr {{.*}}
  42 //CHECK-NEXT:|   |   `-CallExpr {{.*}} 'float'
  43 //CHECK-NEXT:|   |     |-ImplicitCastExpr {{.*}}
  44 //CHECK-NEXT:|   |     | `-DeclRefExpr {{.*}}' Function {{.*}} '__arithmetic_fence'{{.*}}
  45 //CHECK1-NOT:|   |     | `-DeclRefExpr {{.*}}' Function{{.*}} '__arithmetic_fence' 'void ()'
  46 //CHECK2:|   |     | `-DeclRefExpr {{.*}} Function{{.*}} '__arithmetic_fence' 'void ()'