xref: /llvm-project/clang/test/Preprocessor/flt_eval_macro.cpp (revision 2f1264260b37e9bd79737181e459ae20e10c5fea)
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 -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 
foo()65 int foo() {
66   // CHECK: #define Name "One"
67   // EXT: #define Name "Three"
68   return Name;
69 }
70 
71 #pragma fp eval_method(double)
72 
73 #if __FLT_EVAL_METHOD__ == 3
74 #define Val "Unset"
75 #elif __FLT_EVAL_METHOD__ == 0
76 #define Val "val0"
77 #elif __FLT_EVAL_METHOD__ == 1
78 #define Val "val1"
79 #elif __FLT_EVAL_METHOD__ == 2
80 #define Val "val2"
81 #endif
82 
goo()83 int goo() {
84   // CHECK: #define Val "val0"
85   // EXT: #define Val "val2"
86   return Val;
87 }
88