diff options
Diffstat (limited to 'tests/tcg/nios2/test-shadow-1.S')
| -rw-r--r-- | tests/tcg/nios2/test-shadow-1.S | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/tests/tcg/nios2/test-shadow-1.S b/tests/tcg/nios2/test-shadow-1.S new file mode 100644 index 0000000000..79ef69db12 --- /dev/null +++ b/tests/tcg/nios2/test-shadow-1.S @@ -0,0 +1,40 @@ +/* + * Regression test for TCG indirect global lowering. + * + * Copyright Linaro Ltd 2022 + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "semicall.h" + + .text + .set noat + .align 2 + .globl main + .type main, @function + +main: + /* Initialize r0 in shadow register set 1. */ + movhi at, 1 /* PRS=1, CRS=0, RSIE=0, PIE=0 */ + wrctl status, at + wrprs zero, zero + + /* Change current register set to 1. */ + movi at, 1 << 10 /* PRS=0, CRS=1, RSIE=0, PIE=0 */ + wrctl estatus, at + movia ea, 1f + eret + + /* Load address for callr, then end TB. */ +1: movia at, 3f + br 2f + + /* Test case! TCG abort on indirect lowering across brcond. */ +2: callr at + + /* exit(0) */ +3: movi r4, HOSTED_EXIT + movi r5, 0 + semihosting_call + + .size main, . - main |