// Copyright 2016, VIXL authors // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are met: // // * Redistributions of source code must retain the above copyright notice, // this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above copyright notice, // this list of conditions and the following disclaimer in the documentation // and/or other materials provided with the distribution. // * Neither the name of ARM Limited nor the names of its contributors may be // used to endorse or promote products derived from this software without // specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // ----------------------------------------------------------------------------- // This file is auto generated from the // test/aarch32/config/template-assembler-aarch32.cc.in template file using // tools/generate_tests.py. // // PLEASE DO NOT EDIT. // ----------------------------------------------------------------------------- #include "test-runner.h" #include "test-utils.h" #include "test-utils-aarch32.h" #include "aarch32/assembler-aarch32.h" #include "aarch32/macro-assembler-aarch32.h" #define BUF_SIZE (4096) namespace vixl { namespace aarch32 { // List of instruction mnemonics. #define FOREACH_INSTRUCTION(M) M(muls) // The following definitions are defined again in each generated test, therefore // we need to place them in an anomymous namespace. It expresses that they are // local to this file only, and the compiler is not allowed to share these types // across test files during template instantiation. Specifically, `Operands` has // various layouts across generated tests so it absolutely cannot be shared. #ifdef VIXL_INCLUDE_TARGET_T32 namespace { // Values to be passed to the assembler to produce the instruction under test. struct Operands { Condition cond; Register rd; Register rn; Register rm; }; // This structure contains all data needed to test one specific // instruction. struct TestData { // The `operands` field represents what to pass to the assembler to // produce the instruction. Operands operands; // True if we need to generate an IT instruction for this test to be valid. bool in_it_block; // The condition to give the IT instruction, this will be set to "al" by // default. Condition it_condition; // Description of the operands, used for error reporting. const char* operands_description; // Unique identifier, used for generating traces. const char* identifier; }; struct TestResult { size_t size; const byte* encoding; }; // Each element of this array produce one instruction encoding. const TestData kTests[] = {{{al, r0, r0, r0}, false, al, "al r0 r0 r0", "al_r0_r0_r0"}, {{al, r0, r1, r0}, false, al, "al r0 r1 r0", "al_r0_r1_r0"}, {{al, r0, r2, r0}, false, al, "al r0 r2 r0", "al_r0_r2_r0"}, {{al, r0, r3, r0}, false, al, "al r0 r3 r0", "al_r0_r3_r0"}, {{al, r0, r4, r0}, false, al, "al r0 r4 r0", "al_r0_r4_r0"}, {{al, r0, r5, r0}, false, al, "al r0 r5 r0", "al_r0_r5_r0"}, {{al, r0, r6, r0}, false, al, "al r0 r6 r0", "al_r0_r6_r0"}, {{al, r0, r7, r0}, false, al, "al r0 r7 r0", "al_r0_r7_r0"}, {{al, r1, r0, r1}, false, al, "al r1 r0 r1", "al_r1_r0_r1"}, {{al, r1, r1, r1}, false, al, "al r1 r1 r1", "al_r1_r1_r1"}, {{al, r1, r2, r1}, false, al, "al r1 r2 r1", "al_r1_r2_r1"}, {{al, r1, r3, r1}, false, al, "al r1 r3 r1", "al_r1_r3_r1"}, {{al, r1, r4, r1}, false, al, "al r1 r4 r1", "al_r1_r4_r1"}, {{al, r1, r5, r1}, false, al, "al r1 r5 r1", "al_r1_r5_r1"}, {{al, r1, r6, r1}, false, al, "al r1 r6 r1", "al_r1_r6_r1"}, {{al, r1, r7, r1}, false, al, "al r1 r7 r1", "al_r1_r7_r1"}, {{al, r2, r0, r2}, false, al, "al r2 r0 r2", "al_r2_r0_r2"}, {{al, r2, r1, r2}, false, al, "al r2 r1 r2", "al_r2_r1_r2"}, {{al, r2, r2, r2}, false, al, "al r2 r2 r2", "al_r2_r2_r2"}, {{al, r2, r3, r2}, false, al, "al r2 r3 r2", "al_r2_r3_r2"}, {{al, r2, r4, r2}, false, al, "al r2 r4 r2", "al_r2_r4_r2"}, {{al, r2, r5, r2}, false, al, "al r2 r5 r2", "al_r2_r5_r2"}, {{al, r2, r6, r2}, false, al, "al r2 r6 r2", "al_r2_r6_r2"}, {{al, r2, r7, r2}, false, al, "al r2 r7 r2", "al_r2_r7_r2"}, {{al, r3, r0, r3}, false, al, "al r3 r0 r3", "al_r3_r0_r3"}, {{al, r3, r1, r3}, false, al, "al r3 r1 r3", "al_r3_r1_r3"}, {{al, r3, r2, r3}, false, al, "al r3 r2 r3", "al_r3_r2_r3"}, {{al, r3, r3, r3}, false, al, "al r3 r3 r3", "al_r3_r3_r3"}, {{al, r3, r4, r3}, false, al, "al r3 r4 r3", "al_r3_r4_r3"}, {{al, r3, r5, r3}, false, al, "al r3 r5 r3", "al_r3_r5_r3"}, {{al, r3, r6, r3}, false, al, "al r3 r6 r3", "al_r3_r6_r3"}, {{al, r3, r7, r3}, false, al, "al r3 r7 r3", "al_r3_r7_r3"}, {{al, r4, r0, r4}, false, al, "al r4 r0 r4", "al_r4_r0_r4"}, {{al, r4, r1, r4}, false, al, "al r4 r1 r4", "al_r4_r1_r4"}, {{al, r4, r2, r4}, false, al, "al r4 r2 r4", "al_r4_r2_r4"}, {{al, r4, r3, r4}, false, al, "al r4 r3 r4", "al_r4_r3_r4"}, {{al, r4, r4, r4}, false, al, "al r4 r4 r4", "al_r4_r4_r4"}, {{al, r4, r5, r4}, false, al, "al r4 r5 r4", "al_r4_r5_r4"}, {{al, r4, r6, r4}, false, al, "al r4 r6 r4", "al_r4_r6_r4"}, {{al, r4, r7, r4}, false, al, "al r4 r7 r4", "al_r4_r7_r4"}, {{al, r5, r0, r5}, false, al, "al r5 r0 r5", "al_r5_r0_r5"}, {{al, r5, r1, r5}, false, al, "al r5 r1 r5", "al_r5_r1_r5"}, {{al, r5, r2, r5}, false, al, "al r5 r2 r5", "al_r5_r2_r5"}, {{al, r5, r3, r5}, false, al, "al r5 r3 r5", "al_r5_r3_r5"}, {{al, r5, r4, r5}, false, al, "al r5 r4 r5", "al_r5_r4_r5"}, {{al, r5, r5, r5}, false, al, "al r5 r5 r5", "al_r5_r5_r5"}, {{al, r5, r6, r5}, false, al, "al r5 r6 r5", "al_r5_r6_r5"}, {{al, r5, r7, r5}, false, al, "al r5 r7 r5", "al_r5_r7_r5"}, {{al, r6, r0, r6}, false, al, "al r6 r0 r6", "al_r6_r0_r6"}, {{al, r6, r1, r6}, false, al, "al r6 r1 r6", "al_r6_r1_r6"}, {{al, r6, r2, r6}, false, al, "al r6 r2 r6", "al_r6_r2_r6"}, {{al, r6, r3, r6}, false, al, "al r6 r3 r6", "al_r6_r3_r6"}, {{al, r6, r4, r6}, false, al, "al r6 r4 r6", "al_r6_r4_r6"}, {{al, r6, r5, r6}, false, al, "al r6 r5 r6", "al_r6_r5_r6"}, {{al, r6, r6, r6}, false, al, "al r6 r6 r6", "al_r6_r6_r6"}, {{al, r6, r7, r6}, false, al, "al r6 r7 r6", "al_r6_r7_r6"}, {{al, r7, r0, r7}, false, al, "al r7 r0 r7", "al_r7_r0_r7"}, {{al, r7, r1, r7}, false, al, "al r7 r1 r7", "al_r7_r1_r7"}, {{al, r7, r2, r7}, false, al, "al r7 r2 r7", "al_r7_r2_r7"}, {{al, r7, r3, r7}, false, al, "al r7 r3 r7", "al_r7_r3_r7"}, {{al, r7, r4, r7}, false, al, "al r7 r4 r7", "al_r7_r4_r7"}, {{al, r7, r5, r7}, false, al, "al r7 r5 r7", "al_r7_r5_r7"}, {{al, r7, r6, r7}, false, al, "al r7 r6 r7", "al_r7_r6_r7"}, {{al, r7, r7, r7}, false, al, "al r7 r7 r7", "al_r7_r7_r7"}}; // These headers each contain an array of `TestResult` with the reference output // values. The reference arrays are names `kReference{mnemonic}`. #include "aarch32/traces/assembler-cond-rdlow-rnlow-rmlow-muls-t32.h" // The maximum number of errors to report in detail for each test. const unsigned kErrorReportLimit = 8; typedef void (MacroAssembler::*Fn)(Condition cond, Register rd, Register rn, Register rm); void TestHelper(Fn instruction, const char* mnemonic, const TestResult reference[]) { unsigned total_error_count = 0; MacroAssembler masm(BUF_SIZE); masm.UseT32(); for (unsigned i = 0; i < ARRAY_SIZE(kTests); i++) { // Values to pass to the macro-assembler. Condition cond = kTests[i].operands.cond; Register rd = kTests[i].operands.rd; Register rn = kTests[i].operands.rn; Register rm = kTests[i].operands.rm; int32_t start = masm.GetCursorOffset(); { // We never generate more that 4 bytes, as IT instructions are only // allowed for narrow encodings. ExactAssemblyScope scope(&masm, 4, ExactAssemblyScope::kMaximumSize); if (kTests[i].in_it_block) { masm.it(kTests[i].it_condition); } (masm.*instruction)(cond, rd, rn, rm); } int32_t end = masm.GetCursorOffset(); const byte* result_ptr = masm.GetBuffer()->GetOffsetAddress(start); VIXL_ASSERT(start < end); uint32_t result_size = end - start; if (Test::generate_test_trace()) { // Print the result bytes. printf("const byte kInstruction_%s_%s[] = {\n", mnemonic, kTests[i].identifier); for (uint32_t j = 0; j < result_size; j++) { if (j == 0) { printf(" 0x%02" PRIx8, result_ptr[j]); } else { printf(", 0x%02" PRIx8, result_ptr[j]); } } // This comment is meant to be used by external tools to validate // the encoding. We can parse the comment to figure out what // instruction this corresponds to. if (kTests[i].in_it_block) { printf(" // It %s; %s %s\n};\n", kTests[i].it_condition.GetName(), mnemonic, kTests[i].operands_description); } else { printf(" // %s %s\n};\n", mnemonic, kTests[i].operands_description); } } else { // Check we've emitted the exact same encoding as present in the // trace file. Only print up to `kErrorReportLimit` errors. if (((result_size != reference[i].size) || (memcmp(result_ptr, reference[i].encoding, reference[i].size) != 0)) && (++total_error_count <= kErrorReportLimit)) { printf("Error when testing \"%s\" with operands \"%s\":\n", mnemonic, kTests[i].operands_description); printf(" Expected: "); for (uint32_t j = 0; j < reference[i].size; j++) { if (j == 0) { printf("0x%02" PRIx8, reference[i].encoding[j]); } else { printf(", 0x%02" PRIx8, reference[i].encoding[j]); } } printf("\n"); printf(" Found: "); for (uint32_t j = 0; j < result_size; j++) { if (j == 0) { printf("0x%02" PRIx8, result_ptr[j]); } else { printf(", 0x%02" PRIx8, result_ptr[j]); } } printf("\n"); } } } masm.FinalizeCode(); if (Test::generate_test_trace()) { // Finalize the trace file by writing the final `TestResult` array // which links all generated instruction encodings. printf("const TestResult kReference%s[] = {\n", mnemonic); for (unsigned i = 0; i < ARRAY_SIZE(kTests); i++) { printf(" {\n"); printf(" ARRAY_SIZE(kInstruction_%s_%s),\n", mnemonic, kTests[i].identifier); printf(" kInstruction_%s_%s,\n", mnemonic, kTests[i].identifier); printf(" },\n"); } printf("};\n"); } else { if (total_error_count > kErrorReportLimit) { printf("%u other errors follow.\n", total_error_count - kErrorReportLimit); } // Crash if the test failed. VIXL_CHECK(total_error_count == 0); } } // Instantiate tests for each instruction in the list. #define TEST(mnemonic) \ void Test_##mnemonic() { \ TestHelper(&MacroAssembler::mnemonic, #mnemonic, kReference##mnemonic); \ } \ Test test_##mnemonic("AARCH32_ASSEMBLER_COND_RDLOW_RNLOW_RMLOW_" #mnemonic \ "_T32", \ &Test_##mnemonic); FOREACH_INSTRUCTION(TEST) #undef TEST } // namespace #endif } // namespace aarch32 } // namespace vixl