clang/test/Preprocessor/flt_eval_macro.cpp

   1 // RUN: %clang_cc1 -E -dM -triple=x86_64-none-none  %s -o - \
   2 // RUN:   | FileCheck %s -strict-whitespace
   3
   4 // RUN: %clang_cc1 -E -dM -triple=x86_64-none-none -target-feature -sse \
   5 // RUN:   %s -o - | FileCheck %s -check-prefix=EXT -strict-whitespace
   6
   7 // RUN: %clang_cc1 -E -dM -triple=arm64e-apple-ios -target-feature -sse \
   8 // RUN:   %s -o - | FileCheck %s  -strict-whitespace
   9
  10 // RUN: %clang_cc1 -E -dM -triple=arm64e-apple-ios -target-feature +sse \
  11 // RUN:   %s -o - | FileCheck %s  -strict-whitespace
  12
  13 // RUN: %clang_cc1 -E -dM -triple=arm64_32-apple-ios  %s -o - \
  14 // RUN:   | FileCheck %s  -strict-whitespace
  15
  16 // RUN: %clang_cc1 -E -dM -triple=arm64_32-apple-ios -target-feature -sse \
  17 // RUN:   %s -o - | FileCheck %s  -strict-whitespace
  18
  19 // RUN: %clang_cc1 -E -dM -triple=x86_64-apple-macos13.0 -ffast-math \
  20 // RUN:   %s -o - | FileCheck %s -check-prefix=CHECK-MINUS-ONE -strict-whitespace
  21
  22 // RUN: %clang_cc1 -E -dM -triple i386-pc-windows -target-cpu pentium4 %s -o - \
  23 // RUN:   | FileCheck %s  -strict-whitespace
  24
  25 // RUN: %clang_cc1 -E -dM -triple i386-pc-windows -target-cpu pentium4 \
  26 // RUN:   -target-feature -sse %s -o - | FileCheck -check-prefix=EXT %s \
  27 // RUN:   -strict-whitespace
  28
  29 #ifdef __FLT_EVAL_METHOD__
  30 #if __FLT_EVAL_METHOD__ == 3
  31 #define __GLIBC_FLT_EVAL_METHOD 2
  32 #else
  33 #define __GLIBC_FLT_EVAL_METHOD __FLT_EVAL_METHOD__
  34 #endif
  35 #elif defined __x86_64__
  36 #define __GLIBC_FLT_EVAL_METHOD 0
  37 #else
  38 #define __GLIBC_FLT_EVAL_METHOD 2
  39 #endif
  40
  41 #if __GLIBC_FLT_EVAL_METHOD == -1
  42 #define Name "MinusOne"
  43 #elif __GLIBC_FLT_EVAL_METHOD == 0 || __GLIBC_FLT_EVAL_METHOD == 16
  44 #define Name "One"
  45 #elif __GLIBC_FLT_EVAL_METHOD == 1
  46 #define Name "Two"
  47 #elif __GLIBC_FLT_EVAL_METHOD == 2
  48 #define Name "Three"
  49 #elif __GLIBC_FLT_EVAL_METHOD == 32
  50 #define Name "Four"
  51 #elif __GLIBC_FLT_EVAL_METHOD == 33
  52 #define Name "Five"
  53 #elif __GLIBC_FLT_EVAL_METHOD == 64
  54 #define Name "Six"
  55 #elif __GLIBC_FLT_EVAL_METHOD == 65
  56 #define Name "Seven"
  57 #elif __GLIBC_FLT_EVAL_METHOD == 128
  58 #define Name "Eight"
  59 #elif __GLIBC_FLT_EVAL_METHOD == 129
  60 #define Name "Nine"
  61 #else
  62 #error "Unknown __GLIBC_FLT_EVAL_METHOD"
  63 #endif
  64
  65 int foo() {
  66   // CHECK: #define Name "One"
  67   // CHECK-MINUS-ONE: #define Name "MinusOne"
  68   // EXT: #define Name "Three"
  69   return Name;
  70 }
  71
  72 #pragma fp eval_method(double)
  73
  74 #if __FLT_EVAL_METHOD__ == 3
  75 #define Val "Unset"
  76 #elif __FLT_EVAL_METHOD__ == 0
  77 #define Val "val0"
  78 #elif __FLT_EVAL_METHOD__ == 1
  79 #define Val "val1"
  80 #elif __FLT_EVAL_METHOD__ == 2
  81 #define Val "val2"
  82 #endif
  83
  84 int goo() {
  85   // CHECK: #define Val "val0"
  86   // EXT: #define Val "val2"
  87   return Val;
  88 }