0d57cd61d9
Move test infra to header file
check functions (always print line number on error)
USR manipulation
Useful floating point values
Use stdint.h types
Use stdbool.h bool where appropriate
Use trip counts local to for loop
Suggested-by: Anton Johansson <anjo@rev.ng>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Tested-by: Anton Johansson <anjo@rev.ng>
Message-Id: <20230522174341.1805460-1-tsimpson@quicinc.com>
128 lines
3.4 KiB
C
128 lines
3.4 KiB
C
/*
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* Copyright(c) 2023 Qualcomm Innovation Center, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Test instructions where the semantics write to the destination
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* before all the operand reads have been completed.
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*
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* These instructions are problematic when we short-circuit the
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* register writes because the destination and source operands could
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* be the same TCGv.
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*
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* We test by forcing the read and write to be register r7.
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*/
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#include <stdint.h>
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#include <stdlib.h>
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#include <stdio.h>
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int err;
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#include "hex_test.h"
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#define insert(RES, X, WIDTH, OFFSET) \
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asm("r7 = %1\n\t" \
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"r7 = insert(r7, #" #WIDTH ", #" #OFFSET ")\n\t" \
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"%0 = r7\n\t" \
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: "=r"(RES) : "r"(X) : "r7")
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static void test_insert(void)
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{
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uint32_t res;
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insert(res, 0x12345678, 8, 1);
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check32(res, 0x123456f0);
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insert(res, 0x12345678, 0, 1);
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check32(res, 0x12345678);
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insert(res, 0x12345678, 20, 16);
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check32(res, 0x56785678);
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}
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static inline uint32_t insert_rp(uint32_t x, uint32_t width, uint32_t offset)
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{
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uint64_t width_offset = (uint64_t)width << 32 | offset;
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uint32_t res;
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asm("r7 = %1\n\t"
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"r7 = insert(r7, %2)\n\t"
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"%0 = r7\n\t"
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: "=r"(res) : "r"(x), "r"(width_offset) : "r7");
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return res;
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}
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static void test_insert_rp(void)
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{
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check32(insert_rp(0x12345678, 8, 1), 0x123456f0);
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check32(insert_rp(0x12345678, 63, 8), 0x34567878);
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check32(insert_rp(0x12345678, 127, 8), 0x34567878);
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check32(insert_rp(0x12345678, 8, 24), 0x78345678);
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check32(insert_rp(0x12345678, 8, 63), 0x12345678);
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check32(insert_rp(0x12345678, 8, 64), 0x00000000);
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}
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static inline uint32_t asr_r_svw_trun(uint64_t x, uint32_t y)
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{
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uint32_t res;
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asm("r7 = %2\n\t"
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"r7 = vasrw(%1, r7)\n\t"
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"%0 = r7\n\t"
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: "=r"(res) : "r"(x), "r"(y) : "r7");
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return res;
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}
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static void test_asr_r_svw_trun(void)
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{
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check32(asr_r_svw_trun(0x1111111122222222ULL, 5),
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0x88881111);
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check32(asr_r_svw_trun(0x1111111122222222ULL, 63),
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0x00000000);
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check32(asr_r_svw_trun(0x1111111122222222ULL, 64),
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0x00000000);
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check32(asr_r_svw_trun(0x1111111122222222ULL, 127),
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0x22224444);
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check32(asr_r_svw_trun(0x1111111122222222ULL, 128),
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0x11112222);
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check32(asr_r_svw_trun(0xffffffff22222222ULL, 128),
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0xffff2222);
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}
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static inline uint32_t swiz(uint32_t x)
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{
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uint32_t res;
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asm("r7 = %1\n\t"
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"r7 = swiz(r7)\n\t"
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"%0 = r7\n\t"
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: "=r"(res) : "r"(x) : "r7");
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return res;
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}
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static void test_swiz(void)
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{
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check32(swiz(0x11223344), 0x44332211);
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}
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int main()
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{
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test_insert();
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test_insert_rp();
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test_asr_r_svw_trun();
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test_swiz();
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puts(err ? "FAIL" : "PASS");
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return err ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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