clang/test/AST/multistep-explicit-cast.c

   1 // Test without serialization:
   2 // RUN: %clang_cc1 -triple x86_64-linux-gnu -fsyntax-only -ast-dump %s | FileCheck %s
   3 //
   4 // Test with serialization:
   5 // RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-pch -o %t %s
   6 // RUN: %clang_cc1 -x c -triple x86_64-linux-gnu -include-pch %t -ast-dump-all /dev/null \
   7 // RUN: | sed -e "s/ <undeserialized declarations>//" -e "s/ imported//" \
   8 // RUN: | FileCheck %s
   9
  10 // We are checking that implicit casts don't get marked with 'part_of_explicit_cast',
  11 // while in explicit casts, the implicitly-inserted implicit casts are marked with 'part_of_explicit_cast'
  12
  13 unsigned char implicitcast_0(unsigned int x) {
  14   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} implicitcast_0 'unsigned char (unsigned int)'{{$}}
  15   // CHECK: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <IntegralCast>{{$}}
  16   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned int' <LValueToRValue>{{$}}
  17   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'unsigned int' lvalue ParmVar {{.*}} 'x' 'unsigned int'{{$}}
  18   return x;
  19 }
  20
  21 signed char implicitcast_1(unsigned int x) {
  22   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} implicitcast_1 'signed char (unsigned int)'{{$}}
  23   // CHECK: ImplicitCastExpr {{.*}} <col:{{.*}}> 'signed char' <IntegralCast>{{$}}
  24   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned int' <LValueToRValue>{{$}}
  25   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'unsigned int' lvalue ParmVar {{.*}} 'x' 'unsigned int'{{$}}
  26   return x;
  27 }
  28
  29 unsigned char implicitcast_2(signed int x) {
  30   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} implicitcast_2 'unsigned char (int)'{{$}}
  31   // CHECK: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <IntegralCast>{{$}}
  32   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'int' <LValueToRValue>{{$}}
  33   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'int' lvalue ParmVar {{.*}} 'x' 'int'{{$}}
  34   return x;
  35 }
  36
  37 signed char implicitcast_3(signed int x) {
  38   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} implicitcast_3 'signed char (int)'{{$}}
  39   // CHECK: ImplicitCastExpr {{.*}} <col:{{.*}}> 'signed char' <IntegralCast>{{$}}
  40   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'int' <LValueToRValue>{{$}}
  41   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'int' lvalue ParmVar {{.*}} 'x' 'int'{{$}}
  42   return x;
  43 }
  44
  45 //----------------------------------------------------------------------------//
  46
  47 unsigned char cstylecast_0(unsigned int x) {
  48   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cstylecast_0 'unsigned char (unsigned int)'{{$}}
  49   // CHECK: CStyleCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <IntegralCast>{{$}}
  50   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned int' <LValueToRValue> part_of_explicit_cast{{$}}
  51   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'unsigned int' lvalue ParmVar {{.*}} 'x' 'unsigned int'{{$}}
  52   return (unsigned char)x;
  53 }
  54
  55 signed char cstylecast_1(unsigned int x) {
  56   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cstylecast_1 'signed char (unsigned int)'{{$}}
  57   // CHECK: CStyleCastExpr {{.*}} <col:{{.*}}> 'signed char' <IntegralCast>{{$}}
  58   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'unsigned int' <LValueToRValue> part_of_explicit_cast{{$}}
  59   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'unsigned int' lvalue ParmVar {{.*}} 'x' 'unsigned int'{{$}}
  60   return (signed char)x;
  61 }
  62
  63 unsigned char cstylecast_2(signed int x) {
  64   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cstylecast_2 'unsigned char (int)'{{$}}
  65   // CHECK: CStyleCastExpr {{.*}} <col:{{.*}}> 'unsigned char' <IntegralCast>{{$}}
  66   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'int' <LValueToRValue> part_of_explicit_cast{{$}}
  67   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'int' lvalue ParmVar {{.*}} 'x' 'int'{{$}}
  68   return (unsigned char)x;
  69 }
  70
  71 signed char cstylecast_3(signed int x) {
  72   // CHECK: FunctionDecl {{.*}} <{{.*}}, line:{{.*}}> line:{{.*}} cstylecast_3 'signed char (int)'{{$}}
  73   // CHECK: CStyleCastExpr {{.*}} <col:{{.*}}> 'signed char' <IntegralCast>{{$}}
  74   // CHECK-NEXT: ImplicitCastExpr {{.*}} <col:{{.*}}> 'int' <LValueToRValue> part_of_explicit_cast{{$}}
  75   // CHECK-NEXT: DeclRefExpr {{.*}} <col:{{.*}}> 'int' lvalue ParmVar {{.*}} 'x' 'int'{{$}}
  76   return (signed char)x;
  77 }