| 1 | // REQUIRES: arm-target-arch || armv6m-target-arch |
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| 2 | // RUN: %clang_builtins %s %librt -o %t && %run %t |
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| 3 | |
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| 4 | #include <stdint.h> |
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| 5 | #include <stdio.h> |
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| 6 | #include <stdlib.h> |
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| 7 | #include <math.h> |
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| 8 | |
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| 9 | #include "call_apsr.h" |
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| 10 | |
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| 11 | #if __arm__ |
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| 12 | |
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| 13 | extern __attribute__((pcs("aapcs" ))) void __aeabi_cfcmple(float a, float b); |
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| 14 | extern __attribute__((pcs("aapcs" ))) void __aeabi_cfrcmple(float a, float b); |
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| 15 | |
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| 16 | int test__aeabi_cfcmple(float a, float b, int expected) |
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| 17 | { |
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| 18 | int32_t cpsr_value = call_apsr_f(a, b, __aeabi_cfcmple); |
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| 19 | int32_t r_cpsr_value = call_apsr_f(b, a, __aeabi_cfrcmple); |
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| 20 | |
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| 21 | if (cpsr_value != r_cpsr_value) { |
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| 22 | printf("error: __aeabi_cfcmple(%f, %f) != __aeabi_cfrcmple(%f, %f)\n" , a, b, b, a); |
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| 23 | return 1; |
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| 24 | } |
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| 25 | |
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| 26 | int expected_z, expected_c; |
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| 27 | if (expected == -1) { |
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| 28 | expected_z = 0; |
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| 29 | expected_c = 0; |
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| 30 | } else if (expected == 0) { |
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| 31 | expected_z = 1; |
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| 32 | expected_c = 1; |
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| 33 | } else { |
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| 34 | // a or b is NaN, or a > b |
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| 35 | expected_z = 0; |
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| 36 | expected_c = 1; |
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| 37 | } |
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| 38 | |
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| 39 | union cpsr cpsr = { .value = cpsr_value }; |
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| 40 | if (expected_z != cpsr.flags.z || expected_c != cpsr.flags.c) { |
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| 41 | printf("error in __aeabi_cfcmple(%f, %f) => (Z = %d, C = %d), expected (Z = %d, C = %d)\n" , |
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| 42 | a, b, cpsr.flags.z, cpsr.flags.c, expected_z, expected_c); |
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| 43 | return 1; |
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| 44 | } |
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| 45 | |
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| 46 | cpsr.value = r_cpsr_value; |
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| 47 | if (expected_z != cpsr.flags.z || expected_c != cpsr.flags.c) { |
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| 48 | printf("error in __aeabi_cfrcmple(%f, %f) => (Z = %d, C = %d), expected (Z = %d, C = %d)\n" , |
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| 49 | a, b, cpsr.flags.z, cpsr.flags.c, expected_z, expected_c); |
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| 50 | return 1; |
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| 51 | } |
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| 52 | return 0; |
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| 53 | } |
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| 54 | #endif |
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| 55 | |
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| 56 | int main() |
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| 57 | { |
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| 58 | #if __arm__ |
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| 59 | if (test__aeabi_cfcmple(1.0, 1.0, 0)) |
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| 60 | return 1; |
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| 61 | if (test__aeabi_cfcmple(1234.567, 765.4321, 1)) |
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| 62 | return 1; |
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| 63 | if (test__aeabi_cfcmple(765.4321, 1234.567, -1)) |
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| 64 | return 1; |
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| 65 | if (test__aeabi_cfcmple(-123.0, -678.0, 1)) |
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| 66 | return 1; |
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| 67 | if (test__aeabi_cfcmple(-678.0, -123.0, -1)) |
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| 68 | return 1; |
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| 69 | if (test__aeabi_cfcmple(0.0, -0.0, 0)) |
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| 70 | return 1; |
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| 71 | if (test__aeabi_cfcmple(1.0, NAN, 1)) |
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| 72 | return 1; |
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| 73 | if (test__aeabi_cfcmple(NAN, 1.0, 1)) |
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| 74 | return 1; |
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| 75 | if (test__aeabi_cfcmple(NAN, NAN, 1)) |
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| 76 | return 1; |
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| 77 | #else |
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| 78 | printf(format: "skipped\n" ); |
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| 79 | #endif |
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| 80 | return 0; |
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| 81 | } |
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| 82 | |
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