Lloyd Pique | 457ba79 | 2015-10-27 14:32:21 -0700 | [diff] [blame] | 1 | /* Area: fp and variadics |
| 2 | Purpose: check fp inputs and returns work on variadics, even the fixed params |
| 3 | Limitations: None |
| 4 | PR: none |
| 5 | Originator: <david.gilbert@linaro.org> 2011-01-25 |
| 6 | |
| 7 | Intended to stress the difference in ABI on ARM vfp |
| 8 | */ |
| 9 | |
| 10 | /* { dg-do run } */ |
| 11 | |
| 12 | #include <stdarg.h> |
| 13 | |
| 14 | #include "ffitest.h" |
| 15 | |
| 16 | /* prints out all the parameters, and returns the sum of them all. |
| 17 | * 'x' is the number of variadic parameters all of which are double in this test |
| 18 | */ |
| 19 | double float_va_fn(unsigned int x, double y,...) |
| 20 | { |
| 21 | double total=0.0; |
| 22 | va_list ap; |
| 23 | unsigned int i; |
| 24 | |
| 25 | total+=(double)x; |
| 26 | total+=y; |
| 27 | |
| 28 | printf("%u: %.1f :", x, y); |
| 29 | |
| 30 | va_start(ap, y); |
| 31 | for(i=0;i<x;i++) |
| 32 | { |
| 33 | double arg=va_arg(ap, double); |
| 34 | total+=arg; |
| 35 | printf(" %d:%.1f ", i, arg); |
| 36 | } |
| 37 | va_end(ap); |
| 38 | |
| 39 | printf(" total: %.1f\n", total); |
| 40 | |
| 41 | return total; |
| 42 | } |
| 43 | |
| 44 | int main (void) |
| 45 | { |
| 46 | ffi_cif cif; |
| 47 | |
| 48 | ffi_type *arg_types[5]; |
| 49 | void *values[5]; |
| 50 | double doubles[5]; |
| 51 | unsigned int firstarg; |
| 52 | double resfp; |
| 53 | |
| 54 | /* First test, pass float_va_fn(0,2.0) - note there are no actual |
| 55 | * variadic parameters, but it's declared variadic so the ABI may be |
| 56 | * different. */ |
| 57 | /* Call it statically and then via ffi */ |
| 58 | resfp=float_va_fn(0,2.0); |
| 59 | /* { dg-output "0: 2.0 : total: 2.0" } */ |
| 60 | printf("compiled: %.1f\n", resfp); |
| 61 | /* { dg-output "\ncompiled: 2.0" } */ |
| 62 | |
| 63 | arg_types[0] = &ffi_type_uint; |
| 64 | arg_types[1] = &ffi_type_double; |
| 65 | arg_types[2] = NULL; |
| 66 | CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 2, 2, |
| 67 | &ffi_type_double, arg_types) == FFI_OK); |
| 68 | |
| 69 | firstarg = 0; |
| 70 | doubles[0] = 2.0; |
| 71 | values[0] = &firstarg; |
| 72 | values[1] = &doubles[0]; |
| 73 | ffi_call(&cif, FFI_FN(float_va_fn), &resfp, values); |
| 74 | /* { dg-output "\n0: 2.0 : total: 2.0" } */ |
| 75 | printf("ffi: %.1f\n", resfp); |
| 76 | /* { dg-output "\nffi: 2.0" } */ |
| 77 | |
| 78 | /* Second test, float_va_fn(2,2.0,3.0,4.0), now with variadic params */ |
| 79 | /* Call it statically and then via ffi */ |
| 80 | resfp=float_va_fn(2,2.0,3.0,4.0); |
| 81 | /* { dg-output "\n2: 2.0 : 0:3.0 1:4.0 total: 11.0" } */ |
| 82 | printf("compiled: %.1f\n", resfp); |
| 83 | /* { dg-output "\ncompiled: 11.0" } */ |
| 84 | |
| 85 | arg_types[0] = &ffi_type_uint; |
| 86 | arg_types[1] = &ffi_type_double; |
| 87 | arg_types[2] = &ffi_type_double; |
| 88 | arg_types[3] = &ffi_type_double; |
| 89 | arg_types[4] = NULL; |
| 90 | CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 2, 4, |
| 91 | &ffi_type_double, arg_types) == FFI_OK); |
| 92 | |
| 93 | firstarg = 2; |
| 94 | doubles[0] = 2.0; |
| 95 | doubles[1] = 3.0; |
| 96 | doubles[2] = 4.0; |
| 97 | values[0] = &firstarg; |
| 98 | values[1] = &doubles[0]; |
| 99 | values[2] = &doubles[1]; |
| 100 | values[3] = &doubles[2]; |
| 101 | ffi_call(&cif, FFI_FN(float_va_fn), &resfp, values); |
| 102 | /* { dg-output "\n2: 2.0 : 0:3.0 1:4.0 total: 11.0" } */ |
| 103 | printf("ffi: %.1f\n", resfp); |
| 104 | /* { dg-output "\nffi: 11.0" } */ |
| 105 | |
| 106 | exit(0); |
| 107 | } |