From 7e67c73b939b25d4ad18a536e52282aa35d8ee56 Mon Sep 17 00:00:00 2001
From: Balamuruhan S <bala24@linux.ibm.com>
Date: Fri, 26 Jun 2020 15:21:56 +0530
Subject: [PATCH] powerpc/test_emulate_step: Add negative tests for prefixed
addi
References: jsc#SLE-13830 bsc#1179396 ltc#185738
Patch-mainline: v5.9-rc1
Git-commit: 7e67c73b939b25d4ad18a536e52282aa35d8ee56
testcases for `paddi` instruction to cover the negative case,
if R is equal to 1 and RA is not equal to 0, the instruction
form is invalid.
Signed-off-by: Balamuruhan S <bala24@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200626095158.1031507-3-bala24@linux.ibm.com
Acked-by: Michal Suchanek <msuchanek@suse.de>
---
arch/powerpc/lib/test_emulate_step.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/powerpc/lib/test_emulate_step.c b/arch/powerpc/lib/test_emulate_step.c
index 31065e986ff0..7d11ab5ef86c 100644
--- a/arch/powerpc/lib/test_emulate_step.c
+++ b/arch/powerpc/lib/test_emulate_step.c
@@ -1130,6 +1130,16 @@ static struct compute_test compute_tests[] = {
.regs = {
.gpr[21] = 0,
}
+ },
+ /* Invalid instruction form with R = 1 and RA != 0 */
+ {
+ .descr = "RA = R22(0), SI = 0, R = 1",
+ .instr = TEST_PADDI(21, 22, 0, 1),
+ .flags = NEGATIVE_TEST,
+ .regs = {
+ .gpr[21] = 0,
+ .gpr[22] = 0,
+ }
}
}
}
--
2.26.2